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Добірка наукової літератури з теми "Graphene macrostructures"

Автор: Grafiati
Опубліковано: 23 серпня 2023

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Статті в журналах з теми "Graphene macrostructures"

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Yin, Ruilin, Kun Wang, Beibei Han, Guiying Xu, Lixiang Li, Baigang An, Dongying Ju, Maorong Chai, Songnan Li, and Weimin Zhou. "Structural Evaluation of Coal-Tar-Pitch-Based Carbon Materials and Their Na+ Storage Properties." Coatings 11, no. 8 (August 8, 2021): 948. http://dx.doi.org/10.3390/coatings11080948.

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Linking to the S element hybrid strategies, S-doped carbon materials having different macrostructures and defect concentrations are prepared by using sulfur and coal-tar-pitch as raw materials in a carbonization temperature range of 700–1000 °C. The evaluations of macrostructure and surface characteristics are performed through XRD, TEM, Raman and XPS measurements. Through the linear fitting among the Na+ storage capacity with ID/IG and d002 values, the correlations of Na+ storage capacity with macrostructures and defects are respectively investigated in detail. It is observed that S-doped carbon materials exhibit storage capacity at 120 mAh/g after the charge-discharge is being carried out 2000 cycles at 2.0 A/g. Studies have shown that adsorptions of introduced defects on graphene-like carbon sheets mainly play the role to enhance the storage capacity, and the expanded carbonaceous lamellar spaces of highly disordered and pseudo-graphitic macrostructures provide the channels for fast transfer of Na+. Our studies are able to provide references for designs and fabrications of coal tar pitch based soft carbon materials as sodium-ion batteries (SIBs) anodes when using heteroatoms doping methods.
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Zhao, Ranran, Ke Li, Runze Liu, Mansoor Sarfraz, Imran Shakir, and Yuxi Xu. "Reversible 3D self-assembly of graphene oxide and stimuli-responsive polymers for high-performance graphene-based supercapacitors." Journal of Materials Chemistry A 5, no. 36 (2017): 19098–106. http://dx.doi.org/10.1039/c7ta05908f.

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3

Mohd Firdaus, Rabita, Nawal Berrada, Alexandre Desforges, Abdul Rahman Mohamed, and Brigitte Vigolo. "From 2D Graphene Nanosheets to 3D Graphene‐based Macrostructures." Chemistry – An Asian Journal 15, no. 19 (September 4, 2020): 2902–24. http://dx.doi.org/10.1002/asia.202000747.

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Cui, Huijuan, Yibo Guo, and Zhen Zhou. "Three‐Dimensional Graphene‐Based Macrostructures for Electrocatalysis." Small 17, no. 22 (March 18, 2021): 2005255. http://dx.doi.org/10.1002/smll.202005255.

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5

Yousefi, Nariman, Xinglin Lu, Menachem Elimelech, and Nathalie Tufenkji. "Environmental performance of graphene-based 3D macrostructures." Nature Nanotechnology 14, no. 2 (January 7, 2019): 107–19. http://dx.doi.org/10.1038/s41565-018-0325-6.

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Wang, Haitao, Xueyue Mi, Yi Li, and Sihui Zhan. "3D Graphene‐Based Macrostructures for Water Treatment." Advanced Materials 32, no. 3 (May 10, 2019): 1806843. http://dx.doi.org/10.1002/adma.201806843.

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Chen, Zhangjingzhi, Jun Wang, Xiaoguang Duan, Yuanyuan Chu, Xiaoyao Tan, Shaomin Liu, and Shaobin Wang. "Facile fabrication of 3D ferrous ion crosslinked graphene oxide hydrogel membranes for excellent water purification." Environmental Science: Nano 6, no. 10 (2019): 3060–71. http://dx.doi.org/10.1039/c9en00638a.

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8

Yu, Zijun, Li Wei, Lun Lu, Yi Shen, Yang Zhang, Jun Wang, and Xiaoyao Tan. "Structural Manipulation of 3D Graphene-Based Macrostructures for Water Purification." Gels 8, no. 10 (September 29, 2022): 622. http://dx.doi.org/10.3390/gels8100622.

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Анотація:
The rapid development of graphene-based nanotechnologies in recent years has drawn extensive attention in environmental applications, especially for water treatment. Three-dimensional graphene-based macrostructures (GBMs) have been considered to be promising materials for practical water purification due to their well-defined porous structure and integrated morphology, and displayed outstanding performance in pollutant abatement with easy recyclability. Three-dimensional GBMs could not only retain the intrinsic priorities of 2D graphene, but also emerge with extraordinary properties by structural manipulation, so rational design and construction of 3D GBMs with desirable microstructures are important to exploit their potential for water treatment. In this review, some important advances in surface modification (chemical doping, wettability, surface charge) and geometrical control (porous structure, oriented arrangement, shape and density) with respect to 3D GBMs have been described, while their applications in water purification including adsorption (organic pollutants, heavy metal ions), catalysis (photocatalysis, Fenton-like advanced oxidation) and capacitive desalination (CDI) are detailly discussed. Finally, future challenges and prospective for 3D GBMs in water purification are proposed.
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Restivo, João, Olívia Salomé Gonçalves Pinto Soares, and Manuel Fernando Ribeiro Pereira. "Processing Methods Used in the Fabrication of Macrostructures Containing 1D Carbon Nanomaterials for Catalysis." Processes 8, no. 11 (October 22, 2020): 1329. http://dx.doi.org/10.3390/pr8111329.

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A large number of methodologies for fabrication of 1D carbon nanomaterials have been developed in the past few years and are extensively described in the literature. However, for many applications, and in particular in catalysis, a translation of the materials to a macro-structured form is often required towards their use in practical operation conditions. This review intends to describe the available methods currently used for fabrication of such macro-structures, either already applied or with potential for application in the fabrication of macro-structured catalysts containing 1D carbon nanomaterials. A review of the processing methods used in the fabrication of macrostructures containing 1D sp2 hybridized carbon nanomaterials is presented. The carbon nanomaterials here discussed include single- and multi-walled carbon nanotubes, and several types of carbon nanofibers (fishbone, platelet, stacked cup, etc.). As the processing methods used in the fabrication of the macrostructures are generally very similar for any of the carbon nanotubes or nanofibers due to their similar chemical nature (constituted by stacked ordered graphene planes), the review aggregates all under the carbon nanofiber (CNF) moniker. The review is divided into methods where the CNFs are synthesized already in the form of a macrostructure (in situ methods) or where the CNFs are previously synthesized and then further processed into the desired macrostructures (ex situ methods). We highlight in particular the advantages of each approach, including a (non-exhaustive) description of methods commonly described for in situ and ex situ preparation of the catalytic macro-structures. The review proposes methods useful in the preparation of catalytic structures, and thus a number of techniques are left out which are used in the fabrication of CNF-containing structures with no exposure of the carbon materials to reactants due to, for example, complete coverage of the CNF. During the description of the methodologies, several different macrostructures are described. A brief overview of the potential applications of such structures in catalysis is also offered herein, together with a short description of the catalytic potential of CNFs in general.
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Singh, Rasmeet, Sajid Ullah, Nikita Rao, Mandeep Singh, Indrajit Patra, Daniel Amoako Darko, C. Prince Jebedass Issac, Keyvan Esmaeilzadeh-Salestani, Rahul Kanaoujiya, and V. Vijayan. "Synthesis of Three-Dimensional Reduced-Graphene Oxide from Graphene Oxide." Journal of Nanomaterials 2022 (March 3, 2022): 1–18. http://dx.doi.org/10.1155/2022/8731429.

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Carbon materials and their allotropes have been involved significantly in our daily lives. Zero-dimensional (0D) fullerenes, one-dimensional (1D) carbon materials, and two-dimensional (2D) graphene materials have distinctive properties and thus received immense attention from the early 2000s. To meet the growing demand for these materials in applications like energy storage, electrochemical catalysis, and environmental remediation, the special category, i.e., three-dimensional (3D) structures assembled from graphene sheets, has been developed. Graphene oxide is a chemically altered graphene, the desired building block for 3D graphene matter (i.e., 3D graphene macrostructures). A simple synthesis route and pore morphologies make 3D reduced-graphene oxide (rGO) a major candidate for the 3D graphene group. To obtain target-specific 3D rGO, its synthesis mechanism plays an important role. Hence, in this article, we will discuss the general mechanism for 3D rGO synthesis, vital procedures for fabricating advanced 3D rGO, and important aspects controlling the growth of 3D rGO.
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Книги з теми "Graphene macrostructures"

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Balasubramanian, Rajasekhar, and Shamik Chowdhury, eds. Graphene-based 3D Macrostructures for Clean Energy and Environmental Applications. Cambridge: Royal Society of Chemistry, 2021. http://dx.doi.org/10.1039/9781839162480.

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Balasubramanian, Rajasekhar, and Shamik Chowdhury. Graphene-Based 3D Macrostructures for Clean Energy and Environmental Applications. Royal Society of Chemistry, The, 2021.

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3

Balasubramanian, Rajasekhar, and Shamik Chowdhury. Graphene-Based 3D Macrostructures for Clean Energy and Environmental Applications. Royal Society of Chemistry, The, 2021.

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4

Graphene-Based 3D Macrostructures for Clean Energy and Environmental Applications. Royal Society of Chemistry, The, 2021.

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Частини книг з теми "Graphene macrostructures"

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Sun, Haiyan, Zhen Xu, and Chao Gao. "The Functionalization of Graphene and Its Assembled Macrostructures." In Nanomaterials, Polymers, and Devices, 19–44. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2015. http://dx.doi.org/10.1002/9781118867204.ch2.

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Horn, Michael R., Suaad A. Alomari, Jennifer MacLeod, Nunzio Motta, and Deepak P. Dubal. "CHAPTER 5. Ultrafast Charging Supercapacitors Based on 3D Macrostructures of Graphene and Graphene Oxide." In Chemistry in the Environment, 115–38. Cambridge: Royal Society of Chemistry, 2021. http://dx.doi.org/10.1039/9781839162480-00115.

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Chandrasekaran, S., M. R. Cerón, and M. A. Worsley. "CHAPTER 1. Engineering the Architecture of 3D Graphene-based Macrostructures." In Chemistry in the Environment, 1–40. Cambridge: Royal Society of Chemistry, 2021. http://dx.doi.org/10.1039/9781839162480-00001.

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Chandula Wasalathilake, Kimal, and Cheng Yan. "CHAPTER 2. Structure–Property Relationships in 3D Graphene-based Macrostructures." In Chemistry in the Environment, 41–56. Cambridge: Royal Society of Chemistry, 2021. http://dx.doi.org/10.1039/9781839162480-00041.

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Yousefi, Nariman. "CHAPTER 11. 3D Graphene-based Macrostructures as Superabsorbents for Oils and Organic Solvents." In Chemistry in the Environment, 296–312. Cambridge: Royal Society of Chemistry, 2021. http://dx.doi.org/10.1039/9781839162480-00296.

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Тези доповідей конференцій з теми "Graphene macrostructures"

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Phillips, Jonathon, Zayd C. Leseman, Joseph Cordaro, Claudia Luhrs, and Marwan Al-Haik. "Novel Graphitic Structures by Design." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42977.

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Graphitic Structures by Design (GSD) is a novel technology for growing graphite in precise patterns from the nano to the macroscale, rapidly (>1 layer/sec), at low temperatures (ca. 500°C), and in a single step using ordinary laboratory equipment. The GSD process consists of exposing particular metals (Ni, Pd, Pt, Co), which act as ‘templates’, to a fuel rich combustion environment. As an example, we have thoroughly characterized graphite growth on nickel in a mixture of ethylene and oxygen (O2/C2H4 ratio<3), and found that it grows in a geometry remarkably consistent with the shape of the metal template at a rate of the order one graphene layer/second at temperatures between about 500 and 700°C. Graphite structures created with GSD to date include two dimensional ‘screens’ that are inches in extent, yet are composed of micron scale squares graphite foam, hollow nanoparticles, and micron scale particles. All alternative technologies for graphite growth require specialty equipment, such as 2000 °C + ovens, and multiple steps. The alternatives are also not suited for a wide variety of pattern growth in either two or three dimensions. We propose to change focus from demonstrating GSD to determination of the mechanism of graphite growth. GSD could meet a number of recognized technological needs for future generation integrated circuits (IC). Precise patterns of oriented graphite are envisioned as: i) replacements of carbon fibers as structural elements in some aerospace and transport applications, ii) as heat conductive pathways aiding thermal management in ICs iii) as electrical conduits in ICs, iv) as the basic elements of nano-scale logic circuits. GSD graphite is arguably superior to the older and more broadly studied carbon nanotubes technology for all these IC applications for many reasons: only GSD be grown in any pattern on any surface, GSD is far cleaner (no metal residue in the graphite structure, in contrast to nanotubes), GSD structures can be formed consistently and cheaply, at low temperature, and only GSD can be readily grown into large designed macrostructures required for some heat transfer applications.
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