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题名: CoOx nanoparticle anchored on sulfonated-graphite as efficient water oxidation catalyst
作者: Guan, Jingqi1;  Ding, Chunmei1;  Chen, Ruotian1;  Huang, Baokun1;  Zhang, Xianwen1;  Fan, Fengtao1;  Zhang, Fuxiang1;  Li, Can1
刊名: CHEMICAL SCIENCE
发表日期: 2017-09-01
DOI: 10.1039/c7sc01756a
卷: 8, 期:9, 页:6111-6116
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Development of efficient, robust and earth-abundant water oxidation catalysts (WOCs) is extremely desirable for water splitting by electrolysis or photocatalysis. Herein, we report cobalt oxide nanoparticles anchored on the surface of sulfonated graphite (denoted as "CoOx@G-Ph-SN") to exhibit unexpectedly efficient water oxidation activity with a turnover frequency (TOF) of 1.2 s(-1); two or three orders of magnitude higher than most cobalt-based oxide WOCs reported so far. The CoOx@G-Ph-SN nanocomposite can be easily prepared by a soft hydrothermal route to have an average CoOx size below 2 nm. Additionally, the loading of CoOx@G-Ph-SN catalyst on the surface of a BiVO4 or Fe2O3 photoanode can boost remarkably the photoanode currents for robust photocatalytic water oxidation under visible light irradiation. Its excellent activity and photochemical stability for water oxidation suggest that this ultrasmall cobalt-based composite is a promising candidate for solar fuel production.
关键词[WOS]: HIGHLY EFFICIENT ;  PHOTOSYSTEM-II ;  HYDROGEN-PRODUCTION ;  RECENT PROGRESS ;  VISIBLE-LIGHT ;  COBALT ;  OXIDE ;  PHOTOCATALYST ;  PHOTOANODES ;  CHALLENGES
语种: 英语
WOS记录号: WOS:000408168600027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149956
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, State Key Lab Catalysis,iChEM, Dalian 116023, Peoples R China

Recommended Citation:
Guan, Jingqi,Ding, Chunmei,Chen, Ruotian,et al. CoOx nanoparticle anchored on sulfonated-graphite as efficient water oxidation catalyst[J]. CHEMICAL SCIENCE,2017,8(9):6111-6116.
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