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Artigos de revistas sobre o tema "CO2 reduction catalysis"

Autor: Grafiati
Publicado: 7 de dezembro de 2024

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1

Dagorne, Samuel. "Recent Developments on N-Heterocyclic Carbene Supported Zinc Complexes: Synthesis and Use in Catalysis." Synthesis 50, no. 18 (2018): 3662–70. http://dx.doi.org/10.1055/s-0037-1610088.

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The present contribution reviews the synthesis, reactivity, and use in catalysis of NHC–Zn complexes reported since 2013. NHC-stabilized Zn(II) species typically display enhanced stability relative to common organozinc species (such as Zn dialkyls), a feature of interest for the mediation of various chemical processes and the stabilization of reactive Zn-based species. Their use in catalysis is essentially dominated by reduction reactions of various unsaturated small molecules (including CO2), thus primarily involving Zn–H and Zn–alkyl derivatives as catalysts. Simple NHC adducts of Zn(II) dih
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Tian, Jindan, Ru Han, Qiangsheng Guo, Zhe Zhao, and Na Sha. "Direct Conversion of CO2 into Hydrocarbon Solar Fuels by a Synergistic Photothermal Catalysis." Catalysts 12, no. 6 (2022): 612. http://dx.doi.org/10.3390/catal12060612.

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Photothermal coupling catalysis technology has been widely studied in recent years and may be a promising method for CO2 reduction. Photothermal coupling catalysis can improve chemical reaction rates and realize the controllability of reaction pathways and products, even in a relatively moderate reaction condition. It has inestimable value in the current energy and global environmental crisis. This review describes the application of photothermal catalysis in CO2 reduction from different aspects. Firstly, the definition and advantages of photothermal catalysis are briefly described. Then, diff
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3

Srivastava, Sumit, Manvender S. Dagur, Afsar Ali, and Rajeev Gupta. "Trinuclear {Co2+–M3+–Co2+} complexes catalyze reduction of nitro compounds." Dalton Transactions 44, no. 40 (2015): 17453–61. http://dx.doi.org/10.1039/c5dt03442f.

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Trinuclear {Co<sup>2+</sup>–Co<sup>3+</sup>–Co<sup>2+</sup>} and {Co<sup>2+</sup>–Fe<sup>3+</sup>–Co<sup>2+</sup>} complexes function as reusable heterogeneous catalysts for the selective reduction of assorted nitro compounds to their corresponding amines. The mechanistic investigations suggest the involvement of a Co(ii)–Co(i) cycle in the catalysis.
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Lisovski, Oleg, Sergei Piskunov, Dmitry Bocharov, et al. "CO2 and CH2 Adsorption on Copper-Decorated Graphene: Predictions from First Principle Calculations." Crystals 12, no. 2 (2022): 194. http://dx.doi.org/10.3390/cryst12020194.

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Single-layer graphene decorated with monodisperse copper nanoparticles can support the size and mass-dependent catalysis of the selective electrochemical reduction of CO2 to ethylene (C2H4). In this study, various active adsorption sites of nanostructured Cu-decorated graphene have been calculated by using density functional theory to provide insight into its catalytic activity toward carbon dioxide electroreduction. Based on the results of our calculations, an enhanced adsorption of the CO2 molecule and CH2 counterpart placed atop of Cu-decorated graphene compared to adsorption at pristine Cu
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5

Petersen, Haley A., Tessa H. T. Myren, and Oana R. Luca. "Redox-Active Manganese Pincers for Electrocatalytic CO2 Reduction." Inorganics 8, no. 11 (2020): 62. http://dx.doi.org/10.3390/inorganics8110062.

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The decrease of total amount of atmospheric CO2 is an important societal challenge in which CO2 reduction has an important role to play. Electrocatalytic CO2 reduction with homogeneous catalysts is based on highly tunable catalyst design and exploits an abundant C1 source to make valuable products such as fuels and fuel precursors. These methods can also take advantage of renewable electricity as a green reductant. Mn-based catalysts offer these benefits while incorporating a relatively cheap and abundant first-row transition metal. Historically, interest in this field started with Mn(bpy-R)(C
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6

Hahn, Christopher. "(Invited) Steering Electrocatalytic CO2 Reduction Reactivity Using Microenvironments." ECS Meeting Abstracts MA2022-02, no. 49 (2022): 1879. http://dx.doi.org/10.1149/ma2022-02491879mtgabs.

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A key challenge in electrocatalysis is co-designing the catalyst and its microenvironment to work in concert to efficiently steer complex reaction networks. First, I will describe the development of a tandem catalysis strategy on Au/Cu electrocatalysts to control the potential energy landscape of the CO2 and CO reduction at length scales beyond the active site and achieve synergistic catalytic activity for alcohols superior to that of either Cu or Au. Next, I will provide examples of CO2 reduction on catalysts supported on gas diffusion electrodes to discuss how the intrinsic catalysis and mas
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7

Cao, Yanwei, Qiongyao Chen, Chaoren Shen, and Lin He. "Polyoxometalate-Based Catalysts for CO2 Conversion." Molecules 24, no. 11 (2019): 2069. http://dx.doi.org/10.3390/molecules24112069.

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Polyoxometalates (POMs) are a diverse class of anionic metal-oxo clusters with intriguing chemical and physical properties. Owing to unrivaled versatility and structural variation, POMs have been extensively utilized for catalysis for a plethora of reactions. In this focused review, the applications of POMs as promising catalysts or co-catalysts for CO2 conversion, including CO2 photo/electro reduction and CO2 as a carbonyl source for the carbonylation process are summarized. A brief perspective on the potentiality in this field is proposed.
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8

Zhou, Yiying, Junxi Cai, Yuming Sun, et al. "Research on Cu-Site Modification of g-C3N4/CeO2-like Z-Scheme Heterojunction for Enhancing CO2 Reduction and Mechanism Insight." Catalysts 14, no. 8 (2024): 546. http://dx.doi.org/10.3390/catal14080546.

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In this work, the successful synthesis of a Cu@g-C3N4/CeO2-like Z-scheme heterojunction through hydrothermal and photo-deposition methods represents high CO2 reduction activity with remarkable CO selectivity, as evidenced by the impressive CO yield of 33.8 μmol/g for Cu@g-C3N4/CeO2, which is over 10 times higher than that of g-C3N4 and CeO2 individually. The characterization and control experimental results indicate that the formation of heterojunctions and the introduction of Cu sites promote charge separation and the transfer of hot electrons, as well as the photothermal effect, which are th
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9

Xue, Sensen, Xingyou Liang, Qing Zhang, et al. "Density Functional Theory Study of CuAg Bimetal Electrocatalyst for CO2RR to Produce CH3OH." Catalysts 14, no. 1 (2023): 7. http://dx.doi.org/10.3390/catal14010007.

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Converting superfluous CO2 into value-added chemicals is regarded as a practical approach for alleviating the global warming problem. Powered by renewable electricity, CO2 reduction reactions (CO2RR) have attracted intense interest owing to their favorable efficiency. Metal catalysts exhibit high catalytic efficiency for CO2 reduction. However, the reaction mechanisms have yet to be investigated. In this study, CO2RR to CH3OH catalyzed by CuAg bimetal is theoretically investigated. The configurations and stability of the catalysts and the reaction pathway are studied. The results unveil the me
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10

Hall, Anthony Shoji, Youngmin Yoon, Anna Wuttig, and Yogesh Surendranath. "Mesostructure-Induced Selectivity in CO2 Reduction Catalysis." Journal of the American Chemical Society 137, no. 47 (2015): 14834–37. http://dx.doi.org/10.1021/jacs.5b08259.

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11

Geri, Jacob B., Joanna L. Ciatti, and Nathaniel K. Szymczak. "Charge effects regulate reversible CO2 reduction catalysis." Chemical Communications 54, no. 56 (2018): 7790–93. http://dx.doi.org/10.1039/c8cc04370a.

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Modular but geometrically constrained ligands were used to investigate the impact of key ligand design parameters (charge and bite angle) on CO<sub>2</sub> hydrogenation and formic acid dehydrogenation activity.
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12

Jia, Mingwen, Qun Fan, Shizhen Liu, Jieshan Qiu, and Zhenyu Sun. "Single-atom catalysis for electrochemical CO2 reduction." Current Opinion in Green and Sustainable Chemistry 16 (April 2019): 1–6. http://dx.doi.org/10.1016/j.cogsc.2018.11.002.

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13

Grills, David C., Mehmed Z. Ertem, Meaghan McKinnon, Ken T. Ngo, and Jonathan Rochford. "Mechanistic aspects of CO2 reduction catalysis with manganese-based molecular catalysts." Coordination Chemistry Reviews 374 (November 2018): 173–217. http://dx.doi.org/10.1016/j.ccr.2018.05.022.

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14

Xie, Wen-Jun, Olga M. Mulina, Alexander O. Terent’ev, and Liang-Nian He. "Metal–Organic Frameworks for Electrocatalytic CO2 Reduction into Formic Acid." Catalysts 13, no. 7 (2023): 1109. http://dx.doi.org/10.3390/catal13071109.

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Metal–organic frameworks (MOFs) are used in catalysis due to their high specific surface area and porous structure. The dispersed active sites and limited reaction space that render MOFs have the potential for highly selective electrocatalytic CO2 reduction reaction (ECO2RR). Meanwhile, formic acid (HCOOH) is attracting attention as a liquid product with high economic benefits. This review summarizes the MOFs and their derivatives applied for ECO2RR into HCOOH products. The preparation methods of MOFs as electrocatalysts and their unique advantages are discussed. A series of MOFs and MOF deriv
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15

Cobb, Samuel J., Azim M. Dharani, Ana Rita Oliveira, Inês A. C. Pereira, and Erwin Reisner. "Using Enzymes to Understand and Control the Local Environment of Catalysis." ECS Meeting Abstracts MA2023-02, no. 52 (2023): 2530. http://dx.doi.org/10.1149/ma2023-02522530mtgabs.

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Local environments within porous electrodes are an inherent, but often neglected component of catalysis as the local conversion of reactants to products means catalysis occurs in a very different environment to bulk solution. By understanding and modifying these local environments using a combination of experimental and computational techniques, we show how to improve the performance of electrocatalytic reactions to address the climate crisis by efficiently converting renewable energy to chemical fuels. The selectivity and activity of enzymes means they are ideal model catalysts that can guide
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16

Marquart, Wijnand, Shaine Raseale, Gonzalo Prieto, et al. "CO2 Reduction over Mo2C-Based Catalysts." ACS Catalysis 11, no. 3 (2021): 1624–39. http://dx.doi.org/10.1021/acscatal.0c05019.

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17

Yuan, Zhimin, Xianhui Sun, Haiquan Wang, Xingling Zhao, and Zaiyong Jiang. "Applications of Ni-Based Catalysts in Photothermal CO2 Hydrogenation Reaction." Molecules 29, no. 16 (2024): 3882. http://dx.doi.org/10.3390/molecules29163882.

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Heterogeneous CO2 hydrogenation catalytic reactions, as the strategies for CO2 emission reduction and green carbon resource recycling, play important roles in alleviating global warming and energy shortages. Among these strategies, photothermal CO2 hydrogenation technology has become one of the hot catalytic technologies by virtue of the synergistic advantages of thermal catalysis and photocatalysis. And it has attracted more and more researchers’ attentions. Various kinds of effective photothermal catalysts have been gradually discovered, and nickel-based catalysts have been widely studied fo
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18

St. John, Allison, Esraa Ahmad, Tianqi Jin, and Gonghu Li. "(Invited) Single Atom Catalysts in Functionalized Carbon Nitride for Efficient Solar CO2 Reduction." ECS Meeting Abstracts MA2023-01, no. 37 (2023): 2160. http://dx.doi.org/10.1149/ma2023-01372160mtgabs.

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Single atom catalysts (SACs) have demonstrated unique properties in a variety of chemical transformations. Using graphitic carbon nitride (C3N4) as a photoactive support, we have prepared different cobalt SACs for use in solar CO2 reduction. Functionalization of C3N4 was carried out to produce well-defined N4 binding sites for cobalt ions. Spectroscopic techniques and computational tools were employed to confirm the structures of the SACs. In these photosynthetic assemblies, C3N4 absorbs visible light and, in the presence of electron donor, transfers electrons to the cobalt sites for CO2-reduc
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19

Xuemei Yang and Xiaohua Wang, Xuemei Yang and Xiaohua Wang. "Reduction Reactions of CO2 on Rutile TiO2 (110) Nanosheet via Coordination Activation." Journal of the chemical society of pakistan 44, no. 6 (2022): 576. http://dx.doi.org/10.52568/001180/jcsp/44.06.2022.

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Based on the previous coordination catalysis theory, the active site on the surface of transition metal oxides can activate the CO2 molecule. Ultrathin two-dimensional (2D) rutile TiO2 nanosheet with (110) crystal face as the main exposed surface has many active sites of Ti3+ and O vacancy, which have some synergistic effects to greatly reduce the dissociation energy of CO2. Following previous assumptions, four possible reduction processes of CO2 on rutile TiO2 (110) surface were systematically assessed by density functional theory (DFT) simulations. The reduction reactions of CO2 along I face
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20

Hahn, Christopher, and Thomas F. Jaramillo. "Electrocatalysis for CO2 Reduction: Controlling Selectivity to Oxygenates and Multicarbon Products." ECS Meeting Abstracts MA2018-01, no. 31 (2018): 1832. http://dx.doi.org/10.1149/ma2018-01/31/1832.

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Many technical challenges remain for the implementation of CO2 electrolysis as a practical means for CO2 utilization. Here, we outline strategies for improving the performance of catalysts for the electroreduction of CO2 to oxygenated and multicarbon reduction products. To this end, we will first discuss how engineering the surface structure of Cu electrocatalysts led to the discovery of active site structure-selectivity relationships. Using a combination of electrocatalysis experiments and in situ surface probe microscopy, we demonstrate that undercoordinated sites are selective motifs for ox
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21

Buonsanti, Raffaella. "Developing the Chemistry of Colloidal Cu Nanocrystals to Advance the CO2 Electrochemical Reduction." CHIMIA International Journal for Chemistry 75, no. 7 (2021): 598–604. http://dx.doi.org/10.2533/chimia.2021.598.

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The ability to tailor make materials with atomic scale precision is crucial for understanding the sensitivities of their performance parameters and for achieving the design specification corresponding to optimal device operation. Herein, this topic is discussed in the context of catalysis. The electrochemical CO2 reduction reaction (CO2 RR) holds the promise to close the carbon cycle by storing renewable energies in chemical feedstocks, yet it suffers from the lack of efficient and selective catalysts. This article highlights how colloidal chemistry can contribute to tackle this compelling iss
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22

He, Liang-Nian, Xiao-Fang Liu, Xiao-Ya Li, and Chang Qiao. "Transition-Metal-Free Catalysis for the Reductive ­Functionalization of CO2 with Amines." Synlett 29, no. 05 (2018): 548–55. http://dx.doi.org/10.1055/s-0036-1591533.

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Reductive functionalization of CO2 with amines and a reductant, which combines both reduction of CO2 and C–N bond formation in one pot to produce versatile chemicals and energy-storage materials such as formamides, aminals, and methylamines that are usually derived from petroleum feedstock, would be appealing and promising. Herein, we give a brief review on recent developments in the titled CO2 chemistry by employing transition-metal-free catalysis, which can be catalogued as below according to the diversified energy content of the products, that is formamides, aminals, and methylamines being
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23

Al-Omari, Abdulhadi, Zain Yamani, and Ha Nguyen. "Electrocatalytic CO2 Reduction: From Homogeneous Catalysts to Heterogeneous-Based Reticular Chemistry." Molecules 23, no. 11 (2018): 2835. http://dx.doi.org/10.3390/molecules23112835.

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CO2, emitted mainly from fossil fuel combustion, is one of the major greenhouse gases. CO2 could be converted into more valuable chemical feedstocks including CO, HCOOH, HCHO, CH3OH, or CH4. To reduce CO2, catalysts were designed and their unique characteristics were utilized based on types of reaction processes, including catalytic hydrogenation, complex metal hydrides, photocatalysis, biological reduction, and electrochemical reduction. Indeed, the electroreduction method has received much consideration lately due to the simple operation, as well as environmentally friendly procedures that n
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24

Selva Ochoa, Angela Gabriela, Faezeh Habibzadeh, and Elod Lajos Gyenge. "Metal-Organic Framework-Based Electrodes for Efficient CO2 Electroreduction to Formate at High Current Densities (up to 1 A cm−2)." ECS Meeting Abstracts MA2024-01, no. 56 (2024): 2977. http://dx.doi.org/10.1149/ma2024-01562977mtgabs.

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Achieving efficient CO2 electroreduction for production of valuable chemicals requires affordable, stable, and non-toxic catalysts. One of the most studied and promising products of CO2 reduction is formic acid/formate. The latter species is receiving increased attention as an energy vector [1] or energy storage media (e.g., in CO2 redox flow batteries [2]). At present, the practical application of CO2 reduction to formate still faces challenges due to the lack of electrocatalysts capable of operating at high current densities (&gt; 200 mA cm−2) with low degradation over long-duration operatio
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25

Roldan Cuenya, Beatriz. "(Invited) Dynamics in the Electrocatalytic Reduction of CO2 ." ECS Meeting Abstracts MA2023-01, no. 37 (2023): 2163. http://dx.doi.org/10.1149/ma2023-01372163mtgabs.

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Climate change concerns have spurred a growing interest in developing environmentally friendly technologies for energy generation, such as green H2 from water splitting. Moreover, the electrochemical reduction of CO2 (CO2RR) into value-added chemicals and fuels offers an additional possibility to store renewable energy into chemical bonds. It is therefore of particular interest to develop efficient, selective and durable electrocatalysts that can operate under mild reaction conditions. The latter however requires fundamental understanding of their structure and surface composition under reacti
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26

Cobb, Samuel J., Vivek M. Badiani, Azim M. Dharani, et al. "Fast CO2 hydration kinetics impair heterogeneous but improve enzymatic CO2 reduction catalysis." Nature Chemistry 14, no. 4 (2022): 417–24. http://dx.doi.org/10.1038/s41557-021-00880-2.

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27

Khajonvittayakul, Chalempol, Vut Tongnan, Suksun Amornraksa, Navadol Laosiripojana, Matthew Hartley, and Unalome Wetwatana Hartley. "CO2 Hydrogenation to Synthetic Natural Gas over Ni, Fe and Co–Based CeO2–Cr2O3." Catalysts 11, no. 10 (2021): 1159. http://dx.doi.org/10.3390/catal11101159.

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CO2 methanation was studied over monometallic catalyst, i.e., Ni, Fe and Co; on CeO2-Cr2O3 support. The catalysts were prepared using one-pot hydrolysis of mixed metal nitrates and ammonium carbonate. Physicochemical properties of the pre- and post-exposure catalysts were characterized by X-Ray Powder Diffraction (XRD), Hydrogen Temperature Programmed Reduction (H2-TPR), and Field Emission Scanning Electron Microscope (FE-SEM). The screening of three dopants over CeO2-Cr2O3 for CO2 methanation was conducted in a milli-packed bed reactor. Ni-based catalyst was proven to be the most effective ca
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28

Kwak, Ja Hun, Libor Kovarik, and János Szanyi. "Heterogeneous Catalysis on Atomically Dispersed Supported Metals: CO2 Reduction on Multifunctional Pd Catalysts." ACS Catalysis 3, no. 9 (2013): 2094–100. http://dx.doi.org/10.1021/cs4001392.

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29

Fernández-Alvarez, Francisco J., Abdullah M. Aitani, and Luis A. Oro. "Homogeneous catalytic reduction of CO2 with hydrosilanes." Catal. Sci. Technol. 4, no. 3 (2014): 611–24. http://dx.doi.org/10.1039/c3cy00948c.

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Guo, Mengquan, Xiangxiang Li, Yuxin Huang, et al. "CO2-Induced Fibrous Zn Catalyst Promotes Electrochemical Reduction of CO2 to CO." Catalysts 11, no. 4 (2021): 477. http://dx.doi.org/10.3390/catal11040477.

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The electrochemical reduction of CO2 is a promising strategy to achieve efficient conversion and utilization. In this paper, a series of Zn catalysts were prepared by electrodeposition in different atmospheric conditions (N2, CO2, H2, CO). A fibrous Zn catalyst (Zn-CO2) exhibits high electrochemical activity and stability. The Zn-CO2 catalyst shows 73.0% faradaic efficiency of CO at −1.2 V vs. RHE and the selectivity of CO almost did not change over 6 h in −1.2 V vs. RHE. The excellent selectivity and stability is attributed to the novel fibrous morphology, which increases the electrochemical
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31

Li, Xiangxiang, Shuling Chang, Yanting Wang, and Lihong Zhang. "Silver-Carbonaceous Microsphere Precursor-Derived Nano-Coral Ag Catalyst for Electrochemical Carbon Dioxide Reduction." Catalysts 12, no. 5 (2022): 479. http://dx.doi.org/10.3390/catal12050479.

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The selective and effective conversion of CO2 into available chemicals by electrochemical methods was applied as a promising way to mitigate the environment and energy crisis. Metal silver is regarded as an efficient electrocatalyst that can selectively convert CO2 into CO at room temperature. In this paper, a series of coral-like porous Ag (CD-Ag) catalysts were fabricated by calcining silver-carbonaceous microsphere (Ag/CM) precursors with different Ag content and the formation mechanism of CD-Ag catalysts was proposed involving the Ag precursor reduction and CM oxidation. In the selective e
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32

Rahmati, Farnood, Negar Sabouhanian, Jacek Lipkowski, and Aicheng Chen. "Synthesis of 3D Porous Cu Nanostructures on Ag Thin Film Using Dynamic Hydrogen Bubble Template for Electrochemical Conversion of CO2 to Ethanol." Nanomaterials 13, no. 4 (2023): 778. http://dx.doi.org/10.3390/nano13040778.

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Cu-based nanomaterials have been widely considered to be promising electrocatalysts for the direct conversion of CO2 to high-value hydrocarbons. However, poor selectivity and slow kinetics have hindered the use of Cu-based catalysts for large-scale industrial applications. In this work, we report on a tunable Cu-based synthesis strategy using a dynamic hydrogen bubble template (DHBT) coupled with a sputtered Ag thin film for the electrochemical reduction of CO2 to ethanol. Remarkably, the introduction of Ag into the base of the three-dimensional (3D) Cu nanostructure induced changes in the CO2
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Reisner, Erwin. "(Keynote) Reversible CO2 Reduction Electrocatalysis in Solar-Powered Chemistry." ECS Meeting Abstracts MA2023-02, no. 52 (2023): 2517. http://dx.doi.org/10.1149/ma2023-02522517mtgabs.

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Semi-artificial photosynthesis interfaces biological catalysts with synthetic materials such as electrodes or light absorbers to overcome limitations in natural and artificial photosynthesis. The benefit of using biocatalysts in electrocatalytic CO2 reduction is their electrochemical reversibility that enables their operation at very low overpotentials with high selectivity. This presentation will summarise my research group’s progress in integrating the CO2 reducing enzyme formate dehydrogenase into bespoke hierarchical 3D electrode scaffolds and the exploitation in solar-powered catalysis. I
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Li, Qianwen, Mei Li, Shengbo Zhang, et al. "Tuning Sn-Cu Catalysis for Electrochemical Reduction of CO2 on Partially Reduced Oxides SnOx-CuOx-Modified Cu Electrodes." Catalysts 9, no. 5 (2019): 476. http://dx.doi.org/10.3390/catal9050476.

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Copper-based bimetallic catalysts have been recently showing promising performance for the selective electrochemical reduction of CO2. In this work, we successfully fabricated the partially reduced oxides SnOx, CuOxmodified Cu foam electrode (A-Cu/SnO2) through an electrodeposition-annealing-electroreduction approach. Notably, in comparison with the control electrode (Cu/SnO2) without undergoing annealing step, A-Cu/SnO2 exhibits a significant enhancement in terms of CO2 reduction activity and CO selectivity. By investigating the effect of the amount of the electrodeposited SnO2, it is found t
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Cai, Fan, Dunfeng Gao, Hu Zhou, et al. "Electrochemical promotion of catalysis over Pd nanoparticles for CO2 reduction." Chemical Science 8, no. 4 (2017): 2569–73. http://dx.doi.org/10.1039/c6sc04966d.

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Electrochemical promotion of catalysis was observed over Pd nanoparticles with a significant rate enhancement ratio (ρ) for catalyzing CO<sub>2</sub> reduction to produce formate in 1 M KHCO<sub>3</sub> solution at ambient temperature.
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Zhang, Hanguang, John Weiss, Luigi Osmieri, and Piotr Zelenay. "M-N-C-Supported Catalysts for Carbon Dioxide Reduction Reaction." ECS Meeting Abstracts MA2023-01, no. 26 (2023): 1703. http://dx.doi.org/10.1149/ma2023-01261703mtgabs.

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Electrochemical carbon dioxide reduction (CO2RR) is a promising approach to converting CO2 into value-added chemicals using renewable electricity and to ultimately reducing the dependence on fossil resources. However, achieving sufficient activity and selectivity in economically viable CO2 electrolyzers presents a great challenge for CO2RR catalysts.1 Carbons are an important and particularly suitable component of a majority of CO2RR catalysts due to their excellent electronic conductivity, relatively easily achievable high porosity and hierarchical pore structure.2, 3 Thanks to these benefits
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Tawil, Sumana, Hathaichanok Seelajaroen, Amorn Petsom, Niyazi Serdar Sariciftci, and Patchanita Thamyongkit. "Clam-shaped cyclam-functionalized porphyrin for electrochemical reduction of carbon dioxide." Journal of Porphyrins and Phthalocyanines 23, no. 04n05 (2019): 453–61. http://dx.doi.org/10.1142/s1088424619500548.

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A clam-shaped molecule comprising a Zn(II)-porphyrin and a Zn(II)-cyclam is synthesized and characterized. Its electrochemical behavior and catalytic activity for homogeneous electrochemical reduction of carbon dioxide (CO[Formula: see text] are investigated by cyclic voltammetry and compared with those of Zn(II)-meso-tetraphenylporphyrin and Zn(II)-cyclam. Under N2-saturated conditions, cyclic voltammetry of the featured complex has characteristics of its two constituents, but under CO2-saturated conditions, the target compound exhibits significant current enhancement. Iterative reduction und
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38

Manan, Wan Nabilah, Wan Nor Roslam Wan Isahak, and Zahira Yaakob. "CeO2-Based Heterogeneous Catalysts in Dry Reforming Methane and Steam Reforming Methane: A Short Review." Catalysts 12, no. 5 (2022): 452. http://dx.doi.org/10.3390/catal12050452.

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Transitioning to lower carbon energy and environment sustainability requires a reduction in greenhouse gases such as carbon dioxide (CO2) and methane (CH4) that contribute to global warming. One of the most actively studied rare earth metal catalysts is cerium oxide (CeO2) which produces remarkable improvements in catalysts in dry reforming methane. This paper reviews the management of CO2 emissions and the recent advent and trends in bimetallic catalyst development utilizing CeO2 in dry reforming methane (DRM) and steam reforming methane (SRM) from 2015 to 2021 as a way to reduce greenhouse g
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39

Cui, Yan, Pengxiang Ge, Mindong Chen, and Leilei Xu. "Research Progress in Semiconductor Materials with Application in the Photocatalytic Reduction of CO2." Catalysts 12, no. 4 (2022): 372. http://dx.doi.org/10.3390/catal12040372.

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The large-scale burning of non-renewable fossil fuels leads to the gradual increase of the CO2 concentration in the atmosphere, which is associated with negative impacts on the environment. The consequent need to reduce the emission of CO2 resulting from fossil fuel combustion has led to a serious energy crisis. Research reports indicate that the photocatalytic reduction of CO2 is one of the most effective methods to control CO2 pollution. Therefore, the development of novel high-efficiency semiconductor materials has become an important research field. Semiconductor materials need to have a s
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40

Tian, Pengfei, Bo Zhang, Jiacheng Chen, et al. "Curvature-induced electronic tuning of molecular catalysts for CO2 reduction." Catalysis Science & Technology 11, no. 7 (2021): 2491–96. http://dx.doi.org/10.1039/d0cy01589j.

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41

Wang, Luhui, Junang Hu, Hui Liu, et al. "Three-Dimensional Mesoporous Ni-CeO2 Catalysts with Ni Embedded in the Pore Walls for CO2 Methanation." Catalysts 10, no. 5 (2020): 523. http://dx.doi.org/10.3390/catal10050523.

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Mesoporous Ni-based catalysts with Ni confined in nanochannels are widely used in CO2 methanation. However, when Ni loadings are high, the nanochannels are easily blocked by nickel particles, which reduces the catalytic performance. In this work, three-dimensional mesoporous Ni-CeO2-CSC catalysts with high Ni loadings (20−80 wt %) were prepared using a colloidal solution combustion method, and characterized by nitrogen adsorption–desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM) and H2 temperature programmed reduction (H2-TPR). Among the catalysts with different Ni lo
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42

Dharmasaroja, Nichthima, Tanakorn Ratana, Sabaithip Tungkamani, Thana Sornchamni, David S. A. Simakov, and Monrudee Phongaksorn. "The Effects of CeO2 and Co Doping on the Properties and the Performance of the Ni/Al2O3-MgO Catalyst for the Combined Steam and CO2 Reforming of Methane Using Ultra-Low Steam to Carbon Ratio." Catalysts 10, no. 12 (2020): 1450. http://dx.doi.org/10.3390/catal10121450.

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In this paper, the 10 wt% Ni/Al2O3-MgO (10Ni/MA), 5 wt% Ni-5 wt% Ce/Al2O3-MgO (5Ni5Ce/MA), and 5 wt% Ni-5 wt% Co/Al2O3-MgO (5Ni5Co/MA) catalysts were prepared by an impregnation method. The effects of CeO2 and Co doping on the physicochemical properties of the Ni/Al2O3-MgO catalyst were comprehensively studied by N2 adsorption-desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), H2 temperature programmed reduction (H2-TPR), CO2 temperature programmed reduction (CO2-TPD), and thermogravimetric analysis (TGA). The effects on catalytic performance for the combined steam an
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43

Hong, Xiaolei, Haiyan Zhu, Dianchen Du, Quanshen Zhang, and Yawei Li. "Research Progress of Copper-Based Bimetallic Electrocatalytic Reduction of CO2." Catalysts 13, no. 2 (2023): 376. http://dx.doi.org/10.3390/catal13020376.

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Fossil fuels are still the main source of energy in today’s society, so emissions of CO2 are inevitable, but when the CO2 level in the atmosphere is too high, many environmental problems will arise, such as the greenhouse effect, among others. Electrocatalytic reduction of CO2 is one of the most important methods that one can use to reduce the amount of CO2 in the atmosphere. This paper reviews bimetallic catalysts prepared on the basis of copper materials, such as Ag, Au, Zn and Ni. The effects of different ratios of metal atoms in the bimetallic catalysts on the selectivity of CO2RR were inv
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44

Leung, Chi-Fai, and Pui-Yu Ho. "Molecular Catalysis for Utilizing CO2 in Fuel Electro-Generation and in Chemical Feedstock." Catalysts 9, no. 9 (2019): 760. http://dx.doi.org/10.3390/catal9090760.

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Processes for the conversion of CO2 to valuable chemicals are highly desired as a result of the increasing CO2 levels in the atmosphere and the subsequent elevating global temperature. However, CO2 is thermodynamically and kinetically inert to transformation and, therefore, many efforts were made in the last few decades. Reformation/hydrogenation of CO2 is widely used as a means to access valuable products such as acetic acids, CH4, CH3OH, and CO. The electrochemical reduction of CO2 using hetero- and homogeneous catalysts recently attracted much attention. In particular, molecular CO2 reducti
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45

Liu, Di-Jia. "(Invited) Understanding the Electrocatalytic Mechanisms of Oxygen and Carbon Dioxide Reduction Reactions." ECS Meeting Abstracts MA2022-01, no. 35 (2022): 1468. http://dx.doi.org/10.1149/ma2022-01351468mtgabs.

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Oxygen reduction reaction (ORR) is one of the most important reactions in the field of electrocatalysis today. ORR represents a key cathodic reaction in hydrogen fuel cell, which typically needs to be promoted by the platinum group metals (PGMs), particularly Pt. The high cost of Pt adds significant barrier to the widespread implementation of the fuel cell technology. During the last two decades, substantially amount of effort has been invested in searching for low-cost replacements, or PGM-free catalysts for ORR. Although significant progress has been made, such catalysts still face major cha
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46

Cai, Fan, Dunfeng Gao, Hu Zhou, et al. "Correction: Electrochemical promotion of catalysis over Pd nanoparticles for CO2 reduction." Chemical Science 8, no. 4 (2017): 3277. http://dx.doi.org/10.1039/c7sc90011b.

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47

Chen, Pengfei, Yiao Huang, Zuhao Shi, Xingzhu Chen, and Neng Li. "Improving the Catalytic CO2 Reduction on Cs2AgBiBr6 by Halide Defect Engineering: A DFT Study." Materials 14, no. 10 (2021): 2469. http://dx.doi.org/10.3390/ma14102469.

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Pb-free double halide perovskites have drawn immense attention in the potential photocatalytic application, due to the regulatable bandgap energy and nontoxicity. Herein, we first present a study for CO2 conversion on Pb-free halide perovskite Cs2AgBiBr6 under state-of-the-art first-principles calculation with dispersion correction. Compared with the previous CsPbBr3, the cell parameter of Cs2AgBiBr6 underwent only a small decrease of 3.69%. By investigating the adsorption of CO, CO2, NO, NO2, and catalytic reduction of CO2, we found Cs2AgBiBr6 exhibits modest adsorption ability and unsatisfie
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48

Wang, Nannan, Wenbin Jiang, Jing Yang, et al. "Contact-electro-catalytic CO2 reduction from ambient air." Nature Communications 15, no. 1 (2024). http://dx.doi.org/10.1038/s41467-024-50118-1.

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AbstractTraditional catalytic techniques often encounter obstacles in the search for sustainable solutions for converting CO2 into value-added products because of their high energy consumption and expensive catalysts. Here, we introduce a contact-electro-catalysis approach for CO2 reduction reaction, achieving a CO Faradaic efficiency of 96.24%. The contact-electro-catalysis is driven by a triboelectric nanogenerator consisting of electrospun polyvinylidene fluoride loaded with single Cu atoms-anchored polymeric carbon nitride (Cu-PCN) catalysts and quaternized cellulose nanofibers (CNF). Mech
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49

Yun, Ruirui, Beibei Zhang, Ruiming Xu, Shichang Song, Junjie Mao, and Zhaoxu Wang. "Atomically Dispersed Copper Catalysts for Highly Selective CO2 Reduction." Inorganic Chemistry Frontiers, 2022. http://dx.doi.org/10.1039/d2qi02288e.

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Support substrates play an important and magical role in the catalysis process. Herein, atomically dispersed CuN3 catalysts supported by two different types of zirconia (defined as CuN3/NC/T-ZrO2 and CuN3/NC/M-ZrO2) have...
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50

Wang, Hongming, Liming Hong, Xian Liu, Baozhu Chi, and Guomin Xia. "Diatomic Molecule Catalysts toward Synergistic Electrocatalytic Carbon Dioxide Reduction." Journal of Materials Chemistry A, 2023. http://dx.doi.org/10.1039/d2ta09831h.

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Synergistic catalysis with diatomic catalysts is an effective means to boost carbon dioxide (CO2) electroreduction efficiency and product selectivity; studies in this field also contribute to an atomic-level understanding of...
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