Dissolution-regrowth of hierarchical Fe-Dy oxide modulates the electronic structure of nickel-organic frameworks as highly active and stable water splitting electrocatalysts

doi:10.1016/S1872-2067(20)63606-3

	Dissolution-regrowth of hierarchical Fe-Dy oxide modulates the electronic structure of nickel-organic frameworks as highly active and stable water splitting electrocatalysts
	Wan, Zixia 1; He, Qiuting 1; Chen, Jundan 1; Isimjan, Tayirjan Taylor 2; Wang, Bao 3; Yang, Xiulin 1
刊名	CHINESE JOURNAL OF CATALYSIS
	2020-11-01
卷号	41 期号:11 页码:1745-1753
关键词	Metal-organic frameworks Dysprosium oxide Synergistic effect Oxygen evolution Water splitting
ISSN号	0253-9837
DOI	10.1016/S1872-2067(20)63606-3
英文摘要	As the kinetically sluggish oxygen evolution reaction (OER) is considered to be a bottleneck in overall water splitting, it is necessary to develop a highly active and stable electrocatalyst to overcome this issue. Herein, we successfully fabricated a three-dimensional iron-dysprosium oxide co-regulated in-situ formed MOF-Ni arrays on carbon cloth (FeDy@MOF-Ni/CC) through a facile two-step hydrothermal method. Electrochemical studies demonstrate that the designed FeDy@MOF-Ni/CC catalyst requires an overpotential of only 251 mV to reach 10 mA cm(-2) with a small Tafel slope of 52.1 mV dec(-1). Additionally, the stability declined by only 5.5% after 80 h of continuous testing in 1.0 M KOH. Furthermore, a cell voltage of only 1.57 V in the overall water splitting system is sufficient to achieve 10 mA cm(-2); this value is far better than that of most previously reported catalysts. The excellent catalytic performance originates from the unique 3D rhombus-like structure, as well as coupling synergies of Fe-Dy-Ni species. The combination of lanthanide and transition metal species in the synthesis strategy may open entirely new possibilities with promising potential in the design of highly active OER electrocatalysts. (c) 2020, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[21965005] ; Natural Science Foundation of Guangxi Province[2018GXNSFAA294077] ; Project of High-Level Talents of Guangxi[F-KA18015] ; Project of High-Level Talents of Guangxi[2018ZD004] ; Innovation Project of Guangxi Graduate Education[XYCSZ2019056] ; Innovation Project of Guangxi Graduate Education[YCBZ2019031]
WOS关键词	OXYGEN EVOLUTION ; BIFUNCTIONAL ELECTROCATALYST ; EFFICIENT OXYGEN ; QUANTUM DOTS ; HYDROGEN ; NI ; HYDROXIDE ; CORROSION ; ARRAYS ; SITES
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000579729300008
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Guangxi Province ; Project of High-Level Talents of Guangxi ; Innovation Project of Guangxi Graduate Education
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42450]
专题	中国科学院过程工程研究所
通讯作者	Isimjan, Tayirjan Taylor; Wang, Bao; Yang, Xiulin
作者单位	1.Guangxi Normal Univ, Sch Chem & Pharmaceut Sci, Guangxi Key Lab Low Carbon Energy Mat, Guilin 541004, Guangxi, Peoples R China 2.King Abdullah Univ Sci & Technol KAUST, Saudi Arabia Basic Ind Corp SABIC, Thuwal 239556900, Saudi Arabia 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wan, Zixia,He, Qiuting,Chen, Jundan,et al. Dissolution-regrowth of hierarchical Fe-Dy oxide modulates the electronic structure of nickel-organic frameworks as highly active and stable water splitting electrocatalysts[J]. CHINESE JOURNAL OF CATALYSIS,2020,41(11):1745-1753.
APA	Wan, Zixia,He, Qiuting,Chen, Jundan,Isimjan, Tayirjan Taylor,Wang, Bao,&Yang, Xiulin.(2020).Dissolution-regrowth of hierarchical Fe-Dy oxide modulates the electronic structure of nickel-organic frameworks as highly active and stable water splitting electrocatalysts.CHINESE JOURNAL OF CATALYSIS,41(11),1745-1753.
MLA	Wan, Zixia,et al."Dissolution-regrowth of hierarchical Fe-Dy oxide modulates the electronic structure of nickel-organic frameworks as highly active and stable water splitting electrocatalysts".CHINESE JOURNAL OF CATALYSIS 41.11(2020):1745-1753.