Carbon-based electrocatalysts for water splitting at high-current-densities: A review

IF 5.7 3区 材料科学 Q2 Materials Science New Carbon Materials Pub Date : 2024-02-01 DOI:10.1016/S1872-5805(24)60831-0
Yu-xiang Chen , Xiu-hui Zhao , Peng Dong , Ying-jie Zhang , Yu-qin Zou , Shuang-yin Wang
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Abstract

Electrocatalytic water splitting is a promising strategy to generate hydrogen using renewable energy under mild conditions. Carbon-based materials have attracted attention in electrocatalytic water splitting because of their distinctive features such as high specific area, high electron mobility and abundant natural resources. Hydrogen produced by industrial electrocatalytic water splitting in a large quantity requires electrocatalysis at a low overpotential at a large current density. Substantial efforts focused on fundamental research have been made, while much less attention has been paid to the high-current-density test. There are many distinct differences in electrocatalysis to split water using low and high current densities such as the bubble phenomenon, local environment around active sites, and stability. Recent research progress on carbon-based electrocatalysts for water splitting at low and high current densities is summarized, significant challenges and prospects for carbon-based electrocatalysts are discussed, and promising strategies are proposed.

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用于高电流密度水分离的碳基电催化剂:综述
电催化水分裂是在温和条件下利用可再生能源制氢的一种前景广阔的策略。碳基材料具有高比表面积、高电子迁移率和丰富的自然资源等显著特点,因此在电催化水分离领域备受关注。通过工业电催化水分离大量生产氢气需要在大电流密度、低过电位条件下进行电催化。人们已经在基础研究方面做出了巨大努力,但对大电流密度试验的关注却少得多。使用低电流密度和高电流密度进行电催化分水有许多明显的不同,如气泡现象、活性位点周围的局部环境和稳定性。本文总结了在低电流密度和高电流密度条件下进行水分离的碳基电催化剂的最新研究进展,讨论了碳基电催化剂面临的重大挑战和前景,并提出了有前景的策略。
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来源期刊
New Carbon Materials
New Carbon Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
6.10
自引率
8.80%
发文量
3245
审稿时长
5.5 months
期刊介绍: New Carbon Materials is a scholarly journal that publishes original research papers focusing on the physics, chemistry, and technology of organic substances that serve as precursors for creating carbonaceous solids with aromatic or tetrahedral bonding. The scope of materials covered by the journal extends from diamond and graphite to a variety of forms including chars, semicokes, mesophase substances, carbons, carbon fibers, carbynes, fullerenes, and carbon nanotubes. The journal's objective is to showcase the latest research findings and advancements in the areas of formation, structure, properties, behaviors, and technological applications of carbon materials. Additionally, the journal includes papers on the secondary production of new carbon and composite materials, such as carbon-carbon composites, derived from the aforementioned carbons. Research papers on organic substances will be considered for publication only if they have a direct relevance to the resulting carbon materials.
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