Ca2+-doped ultrathin cobalt hydroxyl oxides derived from coordination polymers as efficient electrocatalysts for the oxidation of water

doi:10.1039/c9ta05882f

	Ca2+-doped ultrathin cobalt hydroxyl oxides derived from coordination polymers as efficient electrocatalysts for the oxidation of water
	Su, Panpan 1; Ma, Shuangshuang 1,2; Huang, Wenjuan 1,3; Boyjoo, Yash 1; Bai, Shiyang 2; Liu, Jian 1,4
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2019-09-07
卷号	7 期号:33 页码:19415-19422
ISSN号	2050-7488
DOI	10.1039/c9ta05882f
通讯作者	Bai, Shiyang() ; Liu, Jian(jianliu@dicp.ac.cn)
英文摘要	The development of highly efficient oxygen evolution reaction (OER) electrocatalysts is critical because the sluggish reaction kinetics of this reaction usually hinders the efficiency of water electrolysis for the generation of H-2. Herein, we report that ultrathin cobalt-based coordination polymers (Co-CPs) plates are exceptional electrocatalysts for the OER as they show one of the most lowest Tafel slopes among the cobalt-based OER catalysts reported to date. It has been found that the Co-CPs can be transformed into Co(OH)(2) hexagonal nanoplates and then further oxidized into CoOOH, which acts as a catalytic active site for the oxidation of water. Interestingly, when Ca2+, an inactive ion, was introduced into the precursors, thinner CoOOH nanosheets with more exposed active sites were formed, which displayed significantly higher OER activity than the Co-CPs. Furthermore, the content of Ca2+ in the Co-based coordination polymers (CoxCay-CPs) and the corresponding OER activity of these CPs were systematically investigated, and Co0.89Ca0.11-CPs exhibited highest OER activity. This study provides a fundamental understanding of the catalytic mechanism of cobalt-based coordination polymer electrocatalysts and the effect of inactive species, such as Ca2+, on the OER in an alkaline electrolyte, which may promote the design of highly active electrocatalysts.
资助项目	Liaoning Natural Science Foundation[20180510029] ; National Natural Science Foundation[21403011] ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS[DNL180402] ; Chinese Government 1000 Young Talent Plan
WOS关键词	OXYGEN EVOLUTION REACTION ; METAL-ORGANIC FRAMEWORKS ; NANOSHEETS ; CATALYST ; COOOH ; CONVERSION ; REDUCTION ; PHOSPHIDE ; TRENDS ; FILMS
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000482139000019
资助机构	Liaoning Natural Science Foundation ; Liaoning Natural Science Foundation ; National Natural Science Foundation ; National Natural Science Foundation ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS ; Chinese Government 1000 Young Talent Plan ; Chinese Government 1000 Young Talent Plan ; Liaoning Natural Science Foundation ; Liaoning Natural Science Foundation ; National Natural Science Foundation ; National Natural Science Foundation ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS ; Chinese Government 1000 Young Talent Plan ; Chinese Government 1000 Young Talent Plan ; Liaoning Natural Science Foundation ; Liaoning Natural Science Foundation ; National Natural Science Foundation ; National Natural Science Foundation ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS ; Chinese Government 1000 Young Talent Plan ; Chinese Government 1000 Young Talent Plan ; Liaoning Natural Science Foundation ; Liaoning Natural Science Foundation ; National Natural Science Foundation ; National Natural Science Foundation ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS ; Dalian National Laboratory for Clean Energy (DNL), CAS, DNL Cooperation Fund, CAS ; Chinese Government 1000 Young Talent Plan ; Chinese Government 1000 Young Talent Plan
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/173160]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Bai, Shiyang; Liu, Jian
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Beijing Univ Technol, Dept Chem & Chem Engn, 100 PingLeYuan, Beijing 100124, Peoples R China 3.Shanghai Univ Elect Power, Coll Math & Phys, Shanghai 200090, Peoples R China 4.Univ Surrey, Dept Chem & Proc Engn, DICP Surrey Joint Ctr Future Mat, Guildford, Surrey, England
推荐引用方式 GB/T 7714	Su, Panpan,Ma, Shuangshuang,Huang, Wenjuan,et al. Ca2+-doped ultrathin cobalt hydroxyl oxides derived from coordination polymers as efficient electrocatalysts for the oxidation of water[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(33):19415-19422.
APA	Su, Panpan,Ma, Shuangshuang,Huang, Wenjuan,Boyjoo, Yash,Bai, Shiyang,&Liu, Jian.(2019).Ca2+-doped ultrathin cobalt hydroxyl oxides derived from coordination polymers as efficient electrocatalysts for the oxidation of water.JOURNAL OF MATERIALS CHEMISTRY A,7(33),19415-19422.
MLA	Su, Panpan,et al."Ca2+-doped ultrathin cobalt hydroxyl oxides derived from coordination polymers as efficient electrocatalysts for the oxidation of water".JOURNAL OF MATERIALS CHEMISTRY A 7.33(2019):19415-19422.