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Type: Journal article
Title: Electronic and structural engineering of carbon-based metal-free electrocatalysts for water splitting
Author: Wang, X.
Vasileff, A.
Jiao, Y.
Zheng, Y.
Qiao, S.
Citation: Advanced Materials, 2019; 31(13):1803625-1803625
Publisher: Wiley Online Library
Issue Date: 2019
ISSN: 0935-9648
Statement of
Xuesi Wang, Anthony Vasileff, Yan Jiao, Yao Zheng, Shi‐Zhang Qiao
Abstract: Since first being reported as possible electrocatalysts to substitute platinum for the oxygen reduction reaction (ORR), carbon-based metal-free nanomaterials have been considered a class of promising low-cost materials for clean and sustainable energy-conversion reactions. However, beyond the ORR, the development of carbon-based catalysts for other electrocatalytic reactions is still limited. More importantly, the intrinsic activity of most carbon-based metal-free catalysts is inadequate compared to their metal-based counterparts. To address this challenge, more design strategies are needed in order to improve the overall performance of carbon-based materials. Herein, using water splitting as an example, some state-of-the-art strategies in promoting carbon-based nanomaterials are summarized, including graphene, carbon nanotubes, and graphitic-carbon nitride, as highly active electrocatalysts for hydrogen evolution and oxygen evolution reactions. It is shown that by rationally tuning the electronic and/or physical structure of the carbon nanomaterials, adsorption of reaction intermediates is optimized, consequently improving the apparent electrocatalytic performance. These strategies may facilitate the development in this area and lead to the discovery of advanced carbon-based nanomaterials for various applications in energy-conversion processes.
Keywords: carbon engineering
hydrogen evolution reactions
metal-free electrocatalysts
oxygen evolution reactions
water splitting
Rights: © 2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
DOI: 10.1002/adma.201803625
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Appears in Collections:Aurora harvest 4
Chemical Engineering publications

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