气候变化领域集成服务门户(CCPortal): Anchoring Co3O4 nanoparticles on MXene for efficient electrocatalytic oxygen evolution

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DOI	10.1016/j.scib.2019.12.020
	Anchoring Co3O4 nanoparticles on MXene for efficient electrocatalytic oxygen evolution
	Lu Y.; Fan D.; Chen Z.; Xiao W.; Cao C.; Yang X.
发表日期	2020
ISSN	20959273
起始页码	460
结束页码	466
卷号	65 期号:6
英文摘要	Rational design and controllable synthesis of efficient electrocatalysts for water oxidation is of significant importance for the development of promising energy conversion systems, in particular integrated photoelectrochemical water splitting devices. Cobalt oxide (Co3O4) nanostructures with mixed valences (II,III) have been regarded as promising electrocatalysts for the oxygen evolution reaction (OER). They are able to promote catalytic support of OER but with only modest activity. Here, we demonstrate that the OER performance of cubic Co3O4 electrocatalyst is obviously improved when they are anchored on delaminated two-dimensional (2D) Ti3C2 MXene nanosheets. Upon activation the overpotential of the hybrid catalyst delivers 300 mV at a current density of 10 mA cm−2 in basic solutions, which is remarkably lower than those of Ti3C2 MXene and Co3O4 nanocubes. The strong interfacial electrostatic interactions between two components contribute to the exceptional catalytic performance and stability. The enhanced OER activity and facile synthesis make these Co3O4 nanocubes-decorated ultrathin 2D Ti3C2 MXene nanosheets useful for constructing efficient and stable electrodes for high-performance electrochemical water splitting. © 2019 Science China Press
关键词	Co3O4 Electrocatalysis Heterojunctions MXene Oxygen evolution reaction Water splitting
英文关键词	Cobalt compounds; Electrocatalysis; Electrocatalysts; Energy conversion; Heterojunctions; Nanosheets; Oxygen; Catalytic performance; Co3O4; Controllable synthesis; Energy conversion systems; MXene; Oxygen evolution reaction; Photoelectrochemical water splitting; Water splitting; Titanium compounds
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207139
作者单位	Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland; Key Laboratory for Photonic and Electronic Band Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, 150025, China
推荐引用方式 GB/T 7714	Lu Y.,Fan D.,Chen Z.,et al. Anchoring Co3O4 nanoparticles on MXene for efficient electrocatalytic oxygen evolution[J],2020,65(6).
APA	Lu Y.,Fan D.,Chen Z.,Xiao W.,Cao C.,&Yang X..(2020).Anchoring Co3O4 nanoparticles on MXene for efficient electrocatalytic oxygen evolution.Science Bulletin,65(6).
MLA	Lu Y.,et al."Anchoring Co3O4 nanoparticles on MXene for efficient electrocatalytic oxygen evolution".Science Bulletin 65.6(2020).