Bibliographies thématiques / Cathodes hybrides / Articles de revues
Pour voir les autres types de publications sur ce sujet consultez le lien suivant : Cathodes hybrides.

Articles de revues sur le sujet « Cathodes hybrides »

Auteur : Grafiati
Publié le 11 janvier 2025

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les 50 meilleurs articles de revues pour votre recherche sur le sujet « Cathodes hybrides ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Parcourez les articles de revues sur diverses disciplines et organisez correctement votre bibliographie.

1

Dolphijn, Guillaume, Fernand Gauthy, Alexandru Vlad et Jean-François Gohy. « High Power Cathodes from Poly(2,2,6,6-Tetramethyl-1-Piperidinyloxy Methacrylate)/Li(NixMnyCoz)O2 Hybrid Composites ». Polymers 13, no 6 (23 mars 2021) : 986. http://dx.doi.org/10.3390/polym13060986.

Texte intégral
Résumé :
Lithium-ion batteries are today among the most efficient devices for electrochemical energy storage. However, an improvement of their performance is required to address the challenges of modern grid management, portable technology, and electric mobility. One of the most important limitations to solve is the slow kinetics of redox reactions associated to inorganic cathodic materials, directly impacting on the charging time and the power characteristics of the cells. In sharp contrast, redox polymers such as poly(2,2,6,6-tetramethyl-1-piperidinyloxy methacrylate) (PTMA) exhibit fast redox reaction kinetics and pseudocapacitors characteristics. In this contribution, we have hybridized high energy Li(NixMnyCoz)O2 mixed oxides (NMC) with PTMA. In this hybrid cathode configuration, the higher voltage NMC (ca. 3.7 V vs. Li/Li+) is able to transfer its energy to the lower voltage PTMA (3.6 V vs. Li/Li+) improving the discharge power performances and allowing high power cathodes to be obtained. However, the NMC-PTMA hybrid cathodes show an important capacity fading. Our investigations indicate the presence of an interface degradation reaction between NMC and PTMA transforming NMC into an electrochemically dead material. Moreover, the aqueous process used here to prepare the cathode is also shown to enable the degradation of NMC. Indeed, once NMC is immersed in water, alkaline surface species dissolve, increasing the pH of the slurry, and corroding the aluminum current collector. Additionally, the NMC surface is altered due to delithiation which enables the interface degradation reaction to take place. This reaction by surface passivation of NMC particles did not succeed in preventing the interfacial degradation. Degradation was, however, notably decreased when Li(Ni0.8Mn0.1Co0.1)O2 NMC was used and even further when alumina-coated Li(Ni0.8Mn0.1Co0.1)O2 NMC was considered. For the latter at a 20C discharge rate, the hybrids presented higher power performances compared to the single constituents, clearly emphasizing the benefits of the hybrid cathode concept.
Styles APA, Harvard, Vancouver, ISO, etc.
2

Huang, Kevin. « Performance of Several Excellent Oxide-Based Intercalation Cathodes for Aqueous Zn-Ion Batteries ». ECS Meeting Abstracts MA2023-01, no 5 (28 août 2023) : 921. http://dx.doi.org/10.1149/ma2023-015921mtgabs.

Texte intégral
Résumé :
Aqueous Zn-ion batteries (ZIBs) have garnered significant interest in recent years due to their advantages in safety, cost, and energy density, which make them suitable for large-scale stationary energy storage. Cathode materials have been a primary research focus in the early stage of ZIBs development since they are widely deemed a limiting factor to the performance. In general, good ZIB cathode materials are found in oxides with layered and open framework structures, and inorganic/organic hybrids, and follow mechanisms of “intercalation”, “conversion” or a combination of both to store Zn2+ and H+ during discharge. However, dissolution of these cathodes into aqueous electrolytes has been a major cause of the performance degradation of aqueous ZIBs. In this presentation, we first show our fundamental understanding of cathode dissolution mechanisms and development of engineering solutions to address the dissolution and instability issues. We then show through several examples how specially engineered V-oxides based cathodes achieve better dissolution resistance and performance stability using aqueous Zn(OTf)2 and ZnSO4 electrolytes as examples. We expect that the insights in this presentation will advance the understanding of dissolution mechanisms and provide design principles for better cathode materials.
Styles APA, Harvard, Vancouver, ISO, etc.
3

Choudhury, Soumyadip, Marco Zeiger, Pau Massuti-Ballester, Simon Fleischmann, Petr Formanek, Lars Borchardt et Volker Presser. « Carbon onion–sulfur hybrid cathodes for lithium–sulfur batteries ». Sustainable Energy & ; Fuels 1, no 1 (2017) : 84–94. http://dx.doi.org/10.1039/c6se00034g.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

Wong, Min Hao, Zixuan Zhang, Xianfeng Yang, Xiaojun Chen et Jackie Y. Ying. « One-pot in situ redox synthesis of hexacyanoferrate/conductive polymer hybrids as lithium-ion battery cathodes ». Chemical Communications 51, no 71 (2015) : 13674–77. http://dx.doi.org/10.1039/c5cc04694g.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
5

Edwards, Sean L., Ronen Fogel, Kudzai Mtambanengwe, Chamunorwa Togo, Richard Laubscher et Janice L. Limson. « Metallophthalocyanine/carbon nanotube hybrids : extending applications to microbial fuel cells ». Journal of Porphyrins and Phthalocyanines 16, no 07n08 (juillet 2012) : 917–26. http://dx.doi.org/10.1142/s1088424612501027.

Texte intégral
Résumé :
Pioneering work by Nyokong and others have highlighted the potential benefits for improved electron transfer processes and catalysis of hybrid configurations of metallophthalocyanines with carbon nanotubes. Here we examine the practical application of such hybrid configurations in an Enterobacter cloacae microbial fuel cell. Electrochemical investigations at glassy carbon electrodes (GCEs) showed that FePc and FePc :multiwalled carbon nanotube (MWCNT) hybrid surface modifications display significant oxygen reduction reaction electrocatalytic properties compared to either MWCNT-modified or bare GCE surfaces throughout acidic- to moderately-alkaline pHs. Significant stabilization of the current response at FePc :MWCNT surfaces are notable throughout the pH range, compared to GCE surfaces modified with FePc alone. Corresponding results were obtained for surface modifications of bare carbon paper (BCP) cathodes in a microbial fuel cell where power density increases were observed in the order: Pt > FePc :MWCNT > FePc > MWCNT > BCP. A synergistic combination of simple treatments such as increased ionic strength (300 mM NaCl ), temperature (35 °C), and agitation of the anode chamber in this MFC configuration increased the power density to 2.5 times greater than that achieved at platinised cathode configurations under non-optimised conditions, achieving peak power densities of 212 mW.m-2. The long-term stability of the MFC was assessed over 55 days. Surprisingly, the majority of signal loss over extended MFC operation was attributed, in this study, to fouling of the Nafion® PEM membrane rather than either leaching/fouling of the catalysts from the electrodes or nutrient depletion in the anode over the time periods examined.
Styles APA, Harvard, Vancouver, ISO, etc.
6

Cuentas-Gallegos, A. K., R. Vijayaraghavan, M. Lira-Cantú, N. Casañ-Pastor et P. Gómez-Romero. « Materiales híbridos basados en fosfato de vanadilo y polímeros conductores como cátodos en baterías reversibles de litio ». Boletín de la Sociedad Española de Cerámica y Vidrio 43, no 2 (30 avril 2004) : 429–33. http://dx.doi.org/10.3989/cyv.2004.v43.i2.545.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
7

Hu, Ting, Lie Chen, Kai Yuan et Yiwang Chen. « Amphiphilic fullerene/ZnO hybrids as cathode buffer layers to improve charge selectivity of inverted polymer solar cells ». Nanoscale 7, no 20 (2015) : 9194–203. http://dx.doi.org/10.1039/c5nr01456e.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
8

An, Meichun, Mohammad Abdul Aziz et Yong Lak Joo. « Hybridization of Mesoporous Carbon and Iron Oxide for Better Mitigation of Polysulfide Shuttling in Li-S Batteries ». ECS Meeting Abstracts MA2022-01, no 7 (7 juillet 2022) : 660. http://dx.doi.org/10.1149/ma2022-017660mtgabs.

Texte intégral
Résumé :
With a higher theoretical capacity, lithium-sulfur (Li-S) batteries have been considered as promising candidates for next-generation batteries. Due to the non-conducting nature of sulfur, however, lithium-sulfur batteries tend to exhibit poor performance at a high current rate (C-rate). Here we demonstrate that Fe3O4, synthesized from precursor iron (III) acetylacetonate (AAI), and mesoporous carbon material, Ketjen Black (KB), can be synergistically combined to enhance the electrochemical performance of lithium-sulfur batteries substantially. Instead of adding commercial magnetite particles into Li-S cathodes, iron oxides are synthesized and imbedded into KB from a precursor, AAI, through thermal treatments in air and Ar. The sulfur, then, is incorporated into iron oxides/KB hybrids by melting at an elevated temperature. With air-controlled electrospray as the processing method, sulfur embedded iron oxides/KB, poly(acrylic acid), and rGO sheets are mixed and directly deposited onto the carbon-coated aluminum collector, to employ as the Li-S battery cathode. X-ray diffraction (XRD), scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS) studies confirm that Fe3O4 and iron carbide (Fe3C) are synthesized from the precursor, AAI, embedded in mesoporous carbon materials, and reducing the charge transfer resistance of batteries. The rate-capability tests show that systems with KB/Fe3O4 can achieve enhanced performance compared to batteries without iron oxides, especially at high C-rates. With 14 wt % of solid materials as iron oxides and iron carbide, batteries exhibit 750 mAh/g at 2C discharge/charge rates, which is 83% higher compared to systems without iron oxides. However, incorporated via 250 °C for 0.5 hr in air and 850 °C for 2 hr in Ar, the composite of KB/Fe3O4/Fe3C induces irreversible side reactions during the initial charging process, which causes a huge difference in capacity between the first and the second cycle. To achieve an optimal status with improved rate capability and acceptable initial charging time, we modify the thermal treatments and thus increase the proportion of Fe3O4 in the mixture. According to the postmortem analysis, cathodes with iron oxides can interact with soluble polysulfides strongly and alleviate the polysulfide shuttle effect significantly, compared with those without Fe3O4. Such enhanced rate capability by KB/Fe3O4 (synthesized) over KB only or KB/Fe3O4 (commercial) systems suggests that the incorporation of iron oxides can play an important role in improving the electrical conductivity of cathode and mitigating polysulfide shuttle effect. Figure 1
Styles APA, Harvard, Vancouver, ISO, etc.
9

Cuentas-Gallegos, A. K., M. R. Palacín, M. T. Colomer, J. R. Jurado et P. Gómez-Romero. « Estudios de materiales de cátodos híbridos y ánodos vítreos. Caracterización en celdas de ion litio ». Boletín de la Sociedad Española de Cerámica y Vidrio 41, no 1 (28 février 2002) : 115–21. http://dx.doi.org/10.3989/cyv.2002.v41.i1.708.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
10

Yang, Yiqun, Kayla Strong, Gaind P. Pandey et Lamartine Meda. « Nanostructured V2O5/Nitrogen-doped Graphene Hybrids for High Rate Lithium Storage ». MRS Advances 3, no 60 (2018) : 3495–500. http://dx.doi.org/10.1557/adv.2018.424.

Texte intégral
Résumé :
ABSTRACTVanadium Pentoxide (V2O5) has been identified as a potential cathode material owning to its high specific capacity, theoretically, 441 mAh g-1 for 3Li+ ions insertion/extraction. However, the intrinsic drawbacks of V2O5, i.e. structural instability and poor electronic and ionic conductivity, greatly inhibit its application as a cathode. Here, we report a cetyltrimethylammonium bromide (CTAB)-assisted hydrothermal reaction to synthesize V2O5 nanoclusters. Unique aggregated fiber structure was obtained after annealing. To achieve a porous structure and increase the conductivity, nitrogen-doped Graphene (NG) suspended in ethylene glycol was added to the reaction mixture. The obtained spherical V2O5 nanoparticles and NG sheets were randomly dispersed in the matrix of the V2O5 spheres. As a cathode material for lithium-ion batteries, the V2O5/NG hybrids demonstrate better rate performance compared to the bundle-like V2O5 fibers, delivering higher specific capacity of ∼ 300 and 150 mAh g-1 at a rate of C/10 and 5C, respectively. The enhanced performance in lithium storage are attributed to the synergistic effect of the nanostructured V2O5/NG composites.
Styles APA, Harvard, Vancouver, ISO, etc.
11

Kim, Dae-wook, Nobuyuki Zettsu et Katsuya Teshima. « Three-dimensional SWCNT and MWCNT hybrid networks for extremely high-loading and high rate cathode materials ». Journal of Materials Chemistry A 7, no 29 (2019) : 17412–19. http://dx.doi.org/10.1039/c9ta03870a.

Texte intégral
Résumé :
Extremely high-loading LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode materials (up to 99.5 wt%) were achieved through self-organization of a three-dimensional network of multi-walled and single-walled CNT hybrids.
Styles APA, Harvard, Vancouver, ISO, etc.
12

Lee, Wang-Geun. « Hybrid Electrolyte Strategies for High-Energy Sodium-Based Batteries ». ECS Meeting Abstracts MA2024-02, no 9 (22 novembre 2024) : 1303. https://doi.org/10.1149/ma2024-0291303mtgabs.

Texte intégral
Résumé :
Sodium-based batteries are emerging as a promising and crucial technology for sustainable energy storage due to the abundance and cost-effectiveness of sodium compared to lithium. While these batteries offer an attractive option for large-scale applications, they face challenges such as lower voltage and energy density. To overcome these limitations and enhance high-energy sodium-based battery performance, researchers are exploring innovative hybrid electrolyte strategies. Hybrid electrolytes, which combine solid and liquid systems, provide improvements in safety, efficiency, and performance. This study explores various hybrid approaches, including organic-solid-aqueous hybrids, quasi-solid anolytes, and over-saturated catholytes. These methods aim to address the limitations of sodium-ion batteries and pave the way for high-performance energy storage solutions. For instance, an organic-solid-aqueous hybrid system lets different non-aqueous and aqueous materials adapt, which leads to wider voltage ranges. Additionally, using non-aqueous sodium metal anodes and aqueous ferrocyanide redox cathodes in these hybrid electrolyte systems demonstrates viable voltage ranges and reversible performance. Research on quasi-solid electrolytes showed potential in developing thicker anodes, while over-saturated catholyte research explored the use of solid cathode materials.The diverse hybrid electrolyte approaches have revealed promising possibilities for both aqueous and non-aqueous sodium-based batteries. These advancements enhance battery stability and durability, leading to higher voltage and energy density across various applications. Recent advancements in sodium anode and aqueous cathode designs have enabled the application of sodium-based batteries in different types, including seawater and sodium-flow batteries. One significant innovation is the use of NASICON ceramic electrolytes, which offer improved ionic conductivity and stability, allowing for further material adaptations and optimization of battery performance. In conclusion, the exploration of hybrid electrolyte strategies for sodium-based batteries represents a novel approach towards realizing the full potential of this technology. As research and development progress, sodium-based batteries with hybrid electrolytes could become foundational for sustainable energy storage, contributing to a cleaner and more efficient energy future.
Styles APA, Harvard, Vancouver, ISO, etc.
13

Chen, L. Y., X. W. Guo, J. H. Han, P. Liu, X. D. Xu, A. Hirata et M. W. Chen. « Nanoporous metal/oxide hybrid materials for rechargeable lithium–oxygen batteries ». Journal of Materials Chemistry A 3, no 7 (2015) : 3620–26. http://dx.doi.org/10.1039/c4ta05738d.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
14

Xu, Junming, Mengxia Tang, Zhengming Hu, Xiaoping Hu, Tao Zhou, Kaixin Song, Jun Wu et Jipeng Cheng. « Standing and Lying Ni(OH)2 Nanosheets on Multilayer Graphene for High-Performance Supercapacitors ». Nanomaterials 11, no 7 (24 juin 2021) : 1662. http://dx.doi.org/10.3390/nano11071662.

Texte intégral
Résumé :
For conventional synthesis of Ni(OH)2/graphene hybrids, oxygen-containing functional groups should be firstly introduced on graphene to serve as active sites for the anchoring of Ni(OH)2. In this work, a method for growing Ni(OH)2 nanosheets on multilayer graphene (MLG) with molecular connection is developed which does not need any pre-activation treatments. Moreover, Ni(OH)2 nanosheets can be controlled to stand or lie on the surface of MLG. The prepared hybrids were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The growth processes are suggested according to their morphologies at different growth stages. The enhanced electrochemical performances as supercapacitor electrode materials were confirmed by cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) techniques. Ni(OH)2 nanosheets standing and lying on MLG show specific capacities of 204.4 mAh g−1 and 131.7 mAh g−1, respectively, at 1 A g−1 based on the total mass of the hybrids and 81.5% and 92.8% capacity retention at a high current density of 10 A g−1, respectively. Hybrid supercapacitors with as-prepared hybrids as cathodes and activated carbon as anode were fabricated and tested.
Styles APA, Harvard, Vancouver, ISO, etc.
15

Liu, Xiaohui, Yulei Wu, Xiaodong Li, Wenjun Zhang, Lixiao Zhao, Hai-Qiao Wang et Junfeng Fang. « CdS–phenanthroline derivative hybrid cathode interlayers for high performance inverted organic solar cells ». Journal of Materials Chemistry A 4, no 1 (2016) : 297–302. http://dx.doi.org/10.1039/c5ta06952a.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
16

McKim, Joel. « Oscillons and cathode rays : photographic hybrids in early computer art ». photographies 14, no 3 (2 septembre 2021) : 459–79. http://dx.doi.org/10.1080/17540763.2021.1959387.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
17

Lai, Yanqing, Wei Chen, Zhian Zhang, Yongqing Gan, Xing Yang et Jie Li. « Two-dimensional graphene-like MoSe2 nanosheets anchored on hollow carbon nanofibers as a cathode catalyst for rechargeable Li–O2 batteries ». RSC Advances 6, no 24 (2016) : 19843–47. http://dx.doi.org/10.1039/c5ra27634a.

Texte intégral
Résumé :
MoSe2@HCNF hybrids are used as the catalyst of Li–O2 batteries and exhibit superior catalytic activity. The more catalytic active sites and the enhanced electronic conductivity make the MoSe2@HCNF hybrids exhibit improved catalytic activity.
Styles APA, Harvard, Vancouver, ISO, etc.
18

Tong, Zhongqiu, Rui Yang, Shilin Wu, Dong Shen, Tianpeng Jiao, Kaili Zhang, Wenjun Zhang et Chun-Sing Lee. « Defect-engineered vanadium trioxide nanofiber bundle@graphene hybrids for high-performance all-vanadate Na-ion and K-ion full batteries ». Journal of Materials Chemistry A 7, no 33 (2019) : 19581–88. http://dx.doi.org/10.1039/c9ta06538e.

Texte intégral
Résumé :
Graphene-wrapped throughout-defective nanocrystalline vanadium trioxide nanofiber bunches (V2O3−x@rGO) with high-capacity and stable Na/K storage is prepared. By employing V4+/V5+ redox-based cathodes, high-performance all-vanadate full SIBs and PIBs are successfully assembled.
Styles APA, Harvard, Vancouver, ISO, etc.
19

Hu, Ting, Lie Chen, Zhiqiang Deng et Yiwang Chen. « Amphiphilic fullerenes modified 1D ZnO arrayed nanorods–2D graphene hybrids as cathode buffer layers for inverted polymer solar cells ». Journal of Materials Chemistry A 3, no 20 (2015) : 10890–99. http://dx.doi.org/10.1039/c5ta01274k.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
20

Li, Bing Chuan, Wei Kun Wang, Zhi Feng Fu, An Bang Wang et Ke Guo Yuan. « Preparation and Electrochemical Performance of Cathode Material Carbyne Polysulfide for Lithium Batteries ». Advanced Materials Research 11-12 (février 2006) : 407–12. http://dx.doi.org/10.4028/www.scientific.net/amr.11-12.407.

Texte intégral
Résumé :
Lithium rechargeable battery is a new type of battery developed in recent years. The studies on this system are naturally focused on the cathode material. The cathode material with conducting skeleton and energy-storing side lines was reported and a novel material carbyne polysulfide was studied. This paper was to explore a convenient approach for preparing carbyne polysulfide. The products obtained by co-heating polyvinylidene chloride(PVDC) and pulverized sulfur in ammonia environment was characterized by DSC /TG, IR, Raman spectrums and elemental analysis. And the product had been proved to have a sp2 hybride carbon skeleton with polysulfide attached on it, which resembles the theoretical structure of carbyne polysulfide. The material with favorable sulfur contents exhibited high specific capacity up to 705 mAh/g in the initial cycle and a stable reversible capacity approximately 420 mAh/g.
Styles APA, Harvard, Vancouver, ISO, etc.
21

Chattopadhyay, K. K., D. Banerjee, N. S. Das et D. Sarkar. « Easy synthesis of amorphous graphene and related hybrids for cold cathode application ». Carbon 72 (juin 2014) : 4–14. http://dx.doi.org/10.1016/j.carbon.2013.12.082.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
22

Lee, Sol-Nip, Seulgi Baek, Samuthirapandian Amaresh, Vanchiappan Aravindan, Kyung Yoon Chung, Byung Won Cho, Won-Sub Yoon et Yun-Sung Lee. « Cu–Li2MnSiO4-polyaniline composite hybrids as high performance cathode for lithium batteries ». Journal of Alloys and Compounds 630 (mai 2015) : 292–98. http://dx.doi.org/10.1016/j.jallcom.2015.01.047.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
23

Hernández-Ferrer, Javier, Ana M. Benito, Wolfgang K. Maser et Enrique García-Bordejé. « Hybrids of Reduced Graphene Oxide Aerogel and CNT for Electrochemical O2 Reduction ». Catalysts 11, no 11 (20 novembre 2021) : 1404. http://dx.doi.org/10.3390/catal11111404.

Texte intégral
Résumé :
Carbon nanotubes (CNTs), graphene aerogels (GAs), and their hybrid (CNT-GA) prepared by hydrothermal treatment were tested in the electrocatalytic oxygen reduction reaction (ORR). The importance of porous structure derived from the combination of mesoporosity coming from CNTs with macroporosity stemming from GAs was evidenced because the hybrid carbon material exhibited synergistic performance in terms of kinetic current and onset potential. Different electrocatalysts were prepared based on these hybrids doped with nitrogen using different precursors and also supporting Fe nanoparticles. N-doped carbon hybrids showed higher electrocatalytic activity than their undoped counterparts. Nevertheless, both doped and undoped materials provided a mixed two and four electron reduction. On the other hand, the addition of a Fe precursor and phenanthroline to the CNT-GA allowed preparing an N-doped hybrid containing Fe nanoparticles which favored the 4-electron oxygen reduction to water, thus being an excellent candidate as a structured cathode in fuel cells.
Styles APA, Harvard, Vancouver, ISO, etc.
24

Ma, Tao, Fei Zhou, Tian-Wen Zhang, Hong-Bin Yao, Ting-Yu Su, Zhi-Long Yu, Yi Li, Lei-Lei Lu et Shu-Hong Yu. « Large-Scale Syntheses of Zinc Sulfide⋅(Diethylenetriamine)0.5 Hybrids as Precursors for Sulfur Nanocomposite Cathodes ». Angewandte Chemie 129, no 39 (4 août 2017) : 11998–2002. http://dx.doi.org/10.1002/ange.201706199.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
25

Ma, Tao, Fei Zhou, Tian-Wen Zhang, Hong-Bin Yao, Ting-Yu Su, Zhi-Long Yu, Yi Li, Lei-Lei Lu et Shu-Hong Yu. « Large-Scale Syntheses of Zinc Sulfide⋅(Diethylenetriamine)0.5 Hybrids as Precursors for Sulfur Nanocomposite Cathodes ». Angewandte Chemie International Edition 56, no 39 (4 août 2017) : 11836–40. http://dx.doi.org/10.1002/anie.201706199.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
26

Fang, Weiguang, Zhiman Bai, Xinxin Yu, Wen Zhang et Mingzai Wu. « Pollen-derived porous carbon decorated with cobalt/iron sulfide hybrids as cathode catalysts for flexible all-solid-state rechargeable Zn–air batteries ». Nanoscale 12, no 21 (2020) : 11746–58. http://dx.doi.org/10.1039/d0nr02376k.

Texte intégral
Résumé :
A 2D coplanar flexible Zn–air battery based on the pollen-derived cathode bifunctional catalyst (Co–Fe–S@NSRPC) displays competitive battery performance, bending mechanical property and integrability.
Styles APA, Harvard, Vancouver, ISO, etc.
27

Su, Hailan, Tuzhi Xiong, Qirong Tan, Fang Yang, Paul B. S. Appadurai, Afeez A. Afuwape, M. Sadeeq (Jie Tang) Balogun, Yongchao Huang et Kunkun Guo. « Asymmetric Pseudocapacitors Based on Interfacial Engineering of Vanadium Nitride Hybrids ». Nanomaterials 10, no 6 (10 juin 2020) : 1141. http://dx.doi.org/10.3390/nano10061141.

Texte intégral
Résumé :
Vanadium nitride (VN) shows promising electrochemical properties as an energy storage devices electrode, specifically in supercapacitors. However, the pseudocapacitive charge storage in aqueous electrolytes shows mediocre performance. Herein, we judiciously demonstrate an impressive pseudocapacitor performance by hybridizing VN nanowires with pseudocapacitive 2D-layered MoS2 nanosheets. Arising from the interfacial engineering and pseudocapacitive synergistic effect between the VN and MoS2, the areal capacitance of VN/MoS2 hybrid reaches 3187.30 mF cm−2, which is sevenfold higher than the pristine VN (447.28 mF cm−2) at a current density of 2.0 mA cm−2. In addition, an asymmetric pseudocapacitor assembled based on VN/MoS2 anode and TiN coated with MnO2 (TiN/MnO2) cathode achieves a remarkable volumetric capacitance of 4.52 F cm−3 and energy density of 2.24 mWh cm−3 at a current density of 6.0 mA cm−2. This work opens a new opportunity for the development of high-performance electrodes in unfavorable electrolytes towards designing high areal-capacitance electrode materials for supercapacitors and beyond.
Styles APA, Harvard, Vancouver, ISO, etc.
28

Chen, Miao, Chongqing Yang, Zhixiao Xu, Yanping Tang, Jianzhong Jiang, Ping Liu, Yuezeng Su et Dongqing Wu. « A facile self-assembly strategy towards naphthalene diimide/graphene hybrids as high performance organic cathodes for lithium-ion batteries ». RSC Advances 6, no 17 (2016) : 13666–69. http://dx.doi.org/10.1039/c5ra26181c.

Texte intégral
Résumé :
A hybrid of naphthalene diimide and reduced graphene oxide (NDI–RGO) has been constructed by a facile self-assembly strategy. As the cathode material in lithium ion batteries, NDI–RGO manifests a capacity of 170 mA h g−1 at 25 mA g−1 for 260 cycles.
Styles APA, Harvard, Vancouver, ISO, etc.
29

Wu, Huali, Li Xia, Juan Ren, Qiaoji Zheng, Chenggang Xu et Dunmin Lin. « A high-efficiency N/P co-doped graphene/CNT@porous carbon hybrid matrix as a cathode host for high performance lithium–sulfur batteries ». Journal of Materials Chemistry A 5, no 38 (2017) : 20458–72. http://dx.doi.org/10.1039/c7ta06504c.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
30

Azami, Vahid, et Mortaza Yari. « Comparison between conventional design and cathode gas recirculation design of a direct-syngas solid oxide fuel cell–gas turbine hybrid systems part II : Effect of temperature difference at the fuel cell stack ». International Journal of Renewable Energy Development 7, no 3 (15 décembre 2018) : 263–67. http://dx.doi.org/10.14710/ijred.7.3.263-267.

Texte intégral
Résumé :
This study focuses on the effect of the temperature difference at the fuel cell stack (ΔTcell) on the performances of the two types of SOFC–GT hybrid system configurations, with and without cathode gas recirculation system. In order to investigation the effect of matching between the SOFC temperature (TSOFC) and the turbine inlet temperature (TIT) on the hybrid system performance, we considered additional fuel supply to the combustor as well as cathode gas recirculation system after the air preheater. Simulation results show that the system with cathode gas recirculation gives better efficiency and power capacity for all design conditions than the system without cathode gas recirculation under the same constraints. As the temperature difference at the cell becomes smaller, the both systems performance generally degrade. However the system with cathode gas recirculation is less influenced by the constraint of the cell temperature difference. The model and simulation of the proposed SOFC–GT hybrid systems have been performed with Cycle-Tempo software.Article History: Received January 16th 2018; Received in revised form July 4th 2018; Accepted October 5th 2018; Available onlineHow to Cite This Article: Azami, V and Yari, M. (2018) Comparison Between Conventional Design and Cathode Gas Recirculation Design of a Direct-Syngas Solid Oxide Fuel Cell–Gas Turbine Hybrid Systems Part II: Effect of Temperature Difference at The Fuel Cell Stack. International Journal of Renewable Energy Development, 7(3), 263-267.http://dx.doi.org/10.14710/ijred.7.3.263-267
Styles APA, Harvard, Vancouver, ISO, etc.
31

Jiang, Wanwei, Xijun Xu, Yuxuan Liu, Liang Tan, Fengchen Zhou, Zhiwei Xu et Renzong Hu. « Facile plasma treated β-MnO2@C hybrids for durable cycling cathodes in aqueous Zn-ion batteries ». Journal of Alloys and Compounds 827 (juin 2020) : 154273. http://dx.doi.org/10.1016/j.jallcom.2020.154273.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
32

Ha, Sung Hoon, et Yun Jung Lee. « Core-Shell LiFePO4/Carbon-Coated Reduced Graphene Oxide Hybrids for High-Power Lithium-Ion Battery Cathodes ». Chemistry - A European Journal 21, no 5 (27 novembre 2014) : 2132–38. http://dx.doi.org/10.1002/chem.201404952.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
33

Karthikeyan, K., S. Amaresh, V. Aravindan, H. Kim, K. S. Kang et Y. S. Lee. « Unveiling organic–inorganic hybrids as a cathode material for high performance lithium-ion capacitors ». J. Mater. Chem. A 1, no 3 (2013) : 707–14. http://dx.doi.org/10.1039/c2ta00553k.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
34

Zhou, Wenbo, Shengbo Yuan, Wenming Ding, Yue Cao, Yang Yang, Yan He, Yongqing Yang, Xiaoman Li et Min Luo. « Organic-inorganic hybrids cathode with Hydrogen Bonding Network for highly efficient zinc-ion batteries ». Journal of Energy Storage 104 (décembre 2024) : 114448. http://dx.doi.org/10.1016/j.est.2024.114448.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
35

Nie, Ping, Yaoyao Zhu, Laifa Shen, Gang Pang, Guiyin Xu, Shengyang Dong, Hui Dou et Xiaogang Zhang. « From biomolecule to Na3V2(PO4)3/nitrogen-decorated carbon hybrids : highly reversible cathodes for sodium-ion batteries ». J. Mater. Chem. A 2, no 43 (2014) : 18606–12. http://dx.doi.org/10.1039/c4ta03922j.

Texte intégral
Résumé :
Biomolecule for sodium ion battery: we present important findings related to a high energy biomolecule, adenosine 5′-triphosphate disodium salt (ATP), as a novel precursor and environmentally friendly multifunctional source for the synthesis of bundle-like Na3V2(PO4)3/nitrogen-decorated carbon nanocomposites.
Styles APA, Harvard, Vancouver, ISO, etc.
36

Sarkar, Sourav, Diptonil Banerjee, Nirmalya Sankar Das et Kalyan Kumar Chattopadhyay. « A simple chemical synthesis of amorphous carbon nanotubes–MnO2 flake hybrids for cold cathode application ». Applied Surface Science 347 (août 2015) : 824–31. http://dx.doi.org/10.1016/j.apsusc.2015.04.025.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
37

Kane, Aichata, Ivaylo Hinkov, Ovidiu Brinza, Mongia Hosni, Aliou Hamady Barry, Salim Mourad Cherif et Samir Farhat. « One-Step Synthesis of Graphene, Copper and Zinc Oxide Graphene Hybrids via Arc Discharge : Experiments and Modeling ». Coatings 10, no 4 (25 mars 2020) : 308. http://dx.doi.org/10.3390/coatings10040308.

Texte intégral
Résumé :
In this paper, we report on a modified arc process to synthetize graphene, copper and zinc oxide graphene hybrids. The anode was made of pure graphite or graphite mixed with metals or metal oxides. After applying a controlled direct current, plasma is created in the interelectrode region and the anode is consumed by eroding. Continuous and abundant flux of small carbon, zinc or copper species, issued from the anode at a relatively high temperature, flows through the plasma and condenses in the vicinity of a water-cooled cathode leading to few-layered graphene sheets and highly ordered carbon structures. When the graphite rod is filled with copper or zinc oxide nanoparticles, few layers of curved graphene films were anchored with spherical Cu and ZnO nanoparticles leading to a one-step process synthesis of graphene hybrids, which combine the synergetic properties of graphene along with nanostructured metals or semiconducting materials. The as-prepared samples were characterized by Raman spectroscopy, X-ray diffraction (XRD), spatially resolved electron energy loss spectroscopy (EELS), energy filtered elemental mapping and transmission electron microscopy (TEM). In addition to the experimental study, numerical simulations were performed to determine the velocity, temperature and chemical species distributions in the arc plasma under specific graphene synthesis conditions, thereby providing valuable insight into growth mechanisms.
Styles APA, Harvard, Vancouver, ISO, etc.
38

Zhaleh Ashtari, Zhaleh Ashtari, Behnam Seyyedi Behnam Seyyedi et Baharak Sehatnia Baharak Sehatnia. « Synthesis of Cytochrome-like Copper/Sulfur/Graphite Hybrid as a Cathode Catalyst for Oxygen Reduction with High Selective Four-electron Pathway in Alkaline Medium ». Journal of the chemical society of pakistan 42, no 4 (2020) : 612. http://dx.doi.org/10.52568/000665.

Texte intégral
Résumé :
The cytochrome-like Copper/Sulfur/Graphite electrocatalyst (Cu-S-G) was successfully produced via a facile low temperature process with an impressive performance for oxygen reduction reaction (ORR). The incorporation of trace amounts of copper atoms (andlt; 4%) in the form of copper phthalocyanine (CuPc) noticeably enhanced activity of Sulfur/Graphite (S-G) composite for ORR. The catalytic performance was evaluated by cyclic voltammetry (CV) and linear sweep voltammetry (LSV) methods on a rotating-disk electrode (RDE) in alkaline medium (ΔE = 0.00 to 1.20V vs. Reversible Hydrogen Electrode: RHE). The novel copper-based catalyst was shown superior efficiency compared to platinum base electrocatalyst (Pt0.2/C0.8). The number of electrons consumed (n) per O2 in Cu-S-G was found to vary between 3.87 and 3.90 at a wide range of low overpotentials, which indicates an efficient four-electron pathway from O2 to H2O. Also, the estimated Tafel slopes demonstrate insignificant amount of copper oxide in the surface of electrocatalyst. The Cu-S-G exhibits superior electroactivity durability (ΔE1/2 = -21 mV after 10,000 cycles). We believe that the rather high ORR activity (n ≈ 4 and EOnset=1.06 V vs. RHE) is governed by a unique bio-inspired structure and novel active sites formed upon the anchoring of copper atoms onto the S-G structure.
Styles APA, Harvard, Vancouver, ISO, etc.
39

Zhaleh Ashtari, Zhaleh Ashtari, Behnam Seyyedi Behnam Seyyedi et Baharak Sehatnia Baharak Sehatnia. « Synthesis of Cytochrome-like Copper/Sulfur/Graphite Hybrid as a Cathode Catalyst for Oxygen Reduction with High Selective Four-electron Pathway in Alkaline Medium ». Journal of the chemical society of pakistan 42, no 4 (2020) : 612. http://dx.doi.org/10.52568/000665/jcsp/42.04.2020.

Texte intégral
Résumé :
The cytochrome-like Copper/Sulfur/Graphite electrocatalyst (Cu-S-G) was successfully produced via a facile low temperature process with an impressive performance for oxygen reduction reaction (ORR). The incorporation of trace amounts of copper atoms (andlt; 4%) in the form of copper phthalocyanine (CuPc) noticeably enhanced activity of Sulfur/Graphite (S-G) composite for ORR. The catalytic performance was evaluated by cyclic voltammetry (CV) and linear sweep voltammetry (LSV) methods on a rotating-disk electrode (RDE) in alkaline medium (ΔE = 0.00 to 1.20V vs. Reversible Hydrogen Electrode: RHE). The novel copper-based catalyst was shown superior efficiency compared to platinum base electrocatalyst (Pt0.2/C0.8). The number of electrons consumed (n) per O2 in Cu-S-G was found to vary between 3.87 and 3.90 at a wide range of low overpotentials, which indicates an efficient four-electron pathway from O2 to H2O. Also, the estimated Tafel slopes demonstrate insignificant amount of copper oxide in the surface of electrocatalyst. The Cu-S-G exhibits superior electroactivity durability (ΔE1/2 = -21 mV after 10,000 cycles). We believe that the rather high ORR activity (n ≈ 4 and EOnset=1.06 V vs. RHE) is governed by a unique bio-inspired structure and novel active sites formed upon the anchoring of copper atoms onto the S-G structure.
Styles APA, Harvard, Vancouver, ISO, etc.
40

Lakshmi, K. C. Seetha, Balaraman Vedhanarayanan, Hsin-Hui Shen et Tsung-Wu Lin. « Encapsulating chalcogens as the rate accelerator into MoS2 with expanded interlayer spacing to boost the capacity and cyclic stability of Li–S batteries ». 2D Materials 9, no 3 (7 juin 2022) : 034002. http://dx.doi.org/10.1088/2053-1583/ac7056.

Texte intégral
Résumé :
Abstract In this work, we have demonstrated the successful incorporation of selenium (Se)/tellurium (Te) into the covalently functionalized MoS2 (B-M) nanosheets as a host using a facile solvothermal method. The chalcogen-loaded composites (Se/Te@B-M-C) are characterized by various spectroscopic and microscopic analyses. These experiments prove that the amorphous Se/Te additive is homogeneously distributed over the MoS2 nanosheets with an expanded interlayer distance of ∼10 Å. The fabricated Li–S batteries composed of the Se/Te@B-M-C cathodes exhibit superior electrochemical performances when compared to that of the pristine chalcogens and bare host. The improved charge storage characteristics of these hybrids are attributed to the uniform distribution of chalcogens as the rate accelerators and the formation of a protective solid-electrolyte interphase layer over composites. The present study demonstrates that the structurally-engineered MoS2-based composites with evenly distributed amorphous Se (or Te) chalcogens as accelerators are potential candidates for next-generation high-performance lithium–sulfur batteries with high capacity and excellent cycle stability.
Styles APA, Harvard, Vancouver, ISO, etc.
41

Lu, Yakun, Jun Wu, Jun Liu, Ming Lei, Shasha Tang, Peijie Lu, Linyu Yang, Haoran Yang et Qian Yang. « Facile Synthesis of Na0.33V2O5 Nanosheet-Graphene Hybrids as Ultrahigh Performance Cathode Materials for Lithium Ion Batteries ». ACS Applied Materials & ; Interfaces 7, no 31 (3 août 2015) : 17433–40. http://dx.doi.org/10.1021/acsami.5b04827.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
42

Yu, Linping, Yanliu Dang, Julan Zeng, Junkai He, Steven C. Murphy, Peter Kerns, Steven L. Suib, Jian Zhang et Yuhai Dou. « Self-grown NiCuOx hybrids on a porous NiCuC substrate as an HER cathode in alkaline solution ». Applied Surface Science 515 (juin 2020) : 146117. http://dx.doi.org/10.1016/j.apsusc.2020.146117.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
43

Wang, Yu-Ting, Ze-Zhi Zhang et Ming-Xue Li. « One-pot synthesis of 1T MoS2/MWCNT hybrids for enhanced zinc-ion storage ». Nano Futures 6, no 2 (5 avril 2022) : 025001. http://dx.doi.org/10.1088/2399-1984/ac4f2a.

Texte intégral
Résumé :
Abstract Two-dimensional transition metal dichalcogenides are regarded as the ideal hosts for zinc-ions. Herein, a facile hydrothermal method is proposed to fabricate the metallic phase (1T phase) MoS2/multi-walled carbon nanotube (MWCNT) hybrids serving as the cathode materials for zinc-ion batteries (ZIBs). By virtue of the exertion of phase engineering and the synergy between the 1T MoS2 nanosheets and MWCNT framework, the transfer kinetics of zinc-ions of the prepared hybrid are remarkably accelerated, leading to boosted electrochemical properties at both room temperature and low temperatures. The hybrid electrode delivers a high reversible capacity of 161.5 mAh g−1 after 100 cycles at 0.1 A g−1, and good cycling stability with a desired capacity retention of 84.6% over 500 cycles at 1 A g−1. Furthermore, its boosted capability of zinc-ion storage in a low-temperature atmosphere is revealed. This work not only provides an effective way to squeeze the values of phase engineering of MoS2 in ZIBs, but also reveals the great potential of MoS2-based composites in low-temperature energy storage devices.
Styles APA, Harvard, Vancouver, ISO, etc.
44

Zhang, Yibo, Ting Liu, Qinghua Zhang, Xue Zhang, Shuo Wang, Xinzhi Wang, Liangliang Li, Li-Zhen Fan, Ce-Wen Nan et Yang Shen. « High-performance all-solid-state lithium–sulfur batteries with sulfur/carbon nano-hybrids in a composite cathode ». Journal of Materials Chemistry A 6, no 46 (2018) : 23345–56. http://dx.doi.org/10.1039/c8ta08420c.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
45

Zhang, Weiwei, Hanlin Guo, Haiqing Sun et Rongchang Zeng. « Constructing ternary polyaniline-graphene-TiO2 hybrids with enhanced photoelectrochemical performance in photo-generated cathodic protection ». Applied Surface Science 410 (juillet 2017) : 547–56. http://dx.doi.org/10.1016/j.apsusc.2017.03.133.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
46

Qi, Wentao, Wenjian Wu, Bingqiang Cao, Yong Zhang et Yucheng Wu. « Fabrication of CoFe/N-doped mesoporous carbon hybrids from Prussian blue analogous as high performance cathodes for lithium-sulfur batteries ». International Journal of Hydrogen Energy 44, no 36 (juillet 2019) : 20257–66. http://dx.doi.org/10.1016/j.ijhydene.2019.04.159.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
47

Zhao, Chunxia, Yanbao Song, Yunxia Yang, Wen Chen, Xiaoyu Li et Zongsheng Wang. « Preparation and UV–Vis photodegradation of gaseous benzene by TiO2 nanotube arrays supporting V2O5 nanoparticles ». Functional Materials Letters 08, no 06 (26 octobre 2015) : 1550071. http://dx.doi.org/10.1142/s179360471550071x.

Texte intégral
Résumé :
TiO 2-based catalysts effective in visible radiation for eliminating organic pollutants have attracted intense research activity as a future generation photocatalytic material. However, recombination of electron–hole pairs through trapping/de-trapping as well as the disadvantages of recycling and separation/filtration of powders lead to the limitation of powder TiO 2 materials. TiO 2 nanotube array films supporting vanadium pentoxide nanoparticles (VTNTs) were synthesized by electrophoresis deposition method with the prepared TiO 2 nanotube arrays as the cathode and V 2 O 5 sol as the electrolyte. The results indicate that the formation of Ti – O – V bonds and intimate interaction between host–guest interfaces help to enhance the hybrids’ photodegradation activity of gaseous benzene. Importantly, hybrid film catalysts prepared with 0.05 mol/L V 2 O 5 sol for 10 min electrophoresis deposition perform a 98% conversion rate of benzene and 1028.8 mg/m3 CO 2 production in 80 min under UV–Vis irradiation.
Styles APA, Harvard, Vancouver, ISO, etc.
48

González-Moreno, Humberto Raymundo, José Luis Marín-Muníz, Eddy Sánchez-Dela-Cruz, Carlos Nakase, Oscar Andrés Del Ángel-Coronel, David Reyes-Gonzalez, Noemí Nava-Valente et Luis Carlos Sandoval-Herazo. « Bioelectricity Generation and Production of Ornamental Plants in Vertical Partially Saturated Constructed Wetlands ». Water 13, no 2 (9 janvier 2021) : 143. http://dx.doi.org/10.3390/w13020143.

Texte intégral
Résumé :
Energy production in constructed wetlands is a little-known field, as is the operation of vertical partially saturated constructed wetlands (VPS-CWs) that promote both aerobic and anaerobic microbial interactions. By doing so, bacterial degradation is increased, becoming the main mechanism of pollutant removal in constructed wetlands (CWs). For the first time, the generation of bioelectricity, together with the production of ornamental plants in vertical partially saturated constructed wetlands during the treatment of domestic wastewater, was evaluated. Six VPS-CW systems functioned as bioelectricity generators, where the systems were filled with red volcanic gravel and activated carbon as anode and cathode. Three systems were planted with Zantedeschia aethiopica and three with Canna hybrids plants. The development was measured through mother plants and shoots produced every 60 days. The input and output of each VPS-CW was monitored using control parameters such as BOD5, phosphates (P-PO4), and total Kjeldahl nitrogen (TKN). Bioelectricity, power, voltage, and current measurements were performed every 15 days for a period of 7 months. It was found that the VPS-CWs used as biobatteries in combination with the use of domestic wastewater as a substrate improved the development of the two evaluated plant species and stimulated growth and germination of new shoots. No significant differences were found between the different treatments (p ≤ 0.05). Likewise, an average efficient removal of BOD5 (98%) for both systems without statistical differences was observed (p ≤ 0.05), but for TKN and P-PO4, significant differences (p ≤ 0.05) were found between systems planted with Z. aethiopica (TKN: 65%; P-PO4: 20%) and Canna hybrids (TKN: 69%; P-PO4: 27%). This method of water treatment and bioelectricity production with Canna hybrids was an efficient system that generated a great electric current (140 mA/m2), voltage (750 mV), and electric power (15 mW/m2), compared with those observed in systems with Z. aethiopica (60 mA/m2, 500 mV, 9 mA/m2).
Styles APA, Harvard, Vancouver, ISO, etc.
49

González-Moreno, Humberto Raymundo, José Luis Marín-Muníz, Eddy Sánchez-Dela-Cruz, Carlos Nakase, Oscar Andrés Del Ángel-Coronel, David Reyes-Gonzalez, Noemí Nava-Valente et Luis Carlos Sandoval-Herazo. « Bioelectricity Generation and Production of Ornamental Plants in Vertical Partially Saturated Constructed Wetlands ». Water 13, no 2 (9 janvier 2021) : 143. http://dx.doi.org/10.3390/w13020143.

Texte intégral
Résumé :
Energy production in constructed wetlands is a little-known field, as is the operation of vertical partially saturated constructed wetlands (VPS-CWs) that promote both aerobic and anaerobic microbial interactions. By doing so, bacterial degradation is increased, becoming the main mechanism of pollutant removal in constructed wetlands (CWs). For the first time, the generation of bioelectricity, together with the production of ornamental plants in vertical partially saturated constructed wetlands during the treatment of domestic wastewater, was evaluated. Six VPS-CW systems functioned as bioelectricity generators, where the systems were filled with red volcanic gravel and activated carbon as anode and cathode. Three systems were planted with Zantedeschia aethiopica and three with Canna hybrids plants. The development was measured through mother plants and shoots produced every 60 days. The input and output of each VPS-CW was monitored using control parameters such as BOD5, phosphates (P-PO4), and total Kjeldahl nitrogen (TKN). Bioelectricity, power, voltage, and current measurements were performed every 15 days for a period of 7 months. It was found that the VPS-CWs used as biobatteries in combination with the use of domestic wastewater as a substrate improved the development of the two evaluated plant species and stimulated growth and germination of new shoots. No significant differences were found between the different treatments (p ≤ 0.05). Likewise, an average efficient removal of BOD5 (98%) for both systems without statistical differences was observed (p ≤ 0.05), but for TKN and P-PO4, significant differences (p ≤ 0.05) were found between systems planted with Z. aethiopica (TKN: 65%; P-PO4: 20%) and Canna hybrids (TKN: 69%; P-PO4: 27%). This method of water treatment and bioelectricity production with Canna hybrids was an efficient system that generated a great electric current (140 mA/m2), voltage (750 mV), and electric power (15 mW/m2), compared with those observed in systems with Z. aethiopica (60 mA/m2, 500 mV, 9 mA/m2).
Styles APA, Harvard, Vancouver, ISO, etc.
50

S, Jyothilakshmi, Krishnan Subramanyan, Yun-Sung Lee et Akshay Manohar V. « Scalable Synthesis of Bulk TiO2 Hybrids and Its Li-Storage Properties in “Rocking-Chair” Type Full-Cell Assembly with LiNi0.5Mn1.5O4 Cathode ». ECS Meeting Abstracts MA2024-01, no 5 (9 août 2024) : 708. http://dx.doi.org/10.1149/ma2024-015708mtgabs.

Texte intégral
Résumé :
TiO2 as an anode material in lithium-ion batteries (LIB) has abolished hurdles like irreversibility, cycling stability, rate capability, and energy density, which are vital for electrochemical performance. Conventionally, time-consuming and complex techniques like solvothermal methods are employed to synthesize TiO2. We herein open a new avenue towards a simple, scalable, and eco-friendly synthesis of bulk TiO2 anatase/bronze hybrids from sodium meta-titanate through a facile mechano-chemical and ion-exchange process under different temperature conditions (400, 450, and 500 °C). Structural and morphological features are analyzed through various characterization techniques such as XRD, FE-SEM, HR-TEM, and XPS. The bronze phase’s high reversibility, low redox potential, high current rate performance, and high power capability of the anatase phase make the hybrid attractive for fabricating high power and high energy density Li-ion power packs. The Li insertion/extraction properties are studied in half-cell assembly (Li/TiO2), where all three TiO2 hybrids exhibited promising results with an initial discharge capacity >165 mAh g-1 at a current rate of 0.05 A g-1 along with a capacity retention >90% after 100 cycles. A “rocking-chair” type full-cell configuration with high voltage LiNi0.5Mn1.5O4 cathode is fabricated, in which LNMO/TiO2-400 °C displayed a discharge capacity of ~88 mAh g-1 at a current rate of 0.05 A g-1. Moreover, the full cell exhibited a capacity retention of >70% after 100 cycles with a maximum energy density of 192.75 Wh kg-1. Figure 1
Styles APA, Harvard, Vancouver, ISO, etc.
Vous pouvez également être intéressé par les bibliographies sur le sujet « Cathodes hybrides » pour d’autres types de sources :
Thèses
Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!

Vers la bibliographie