Disordered and oxygen vacancy-rich NiFe hydroxides/oxides in situ grown on amorphous ribbons for boosted alkaline water oxidation

doi:10.1016/j.jelechem.2020.114918

CORC > 金属研究所 > 中国科学院金属研究所

	Disordered and oxygen vacancy-rich NiFe hydroxides/oxides in situ grown on amorphous ribbons for boosted alkaline water oxidation
	Li, Hailong 1,2; Zhu, Zhengwang 2; Wang, Yuanyuan 2; Chen, Sen 1,2; Liu, Chunming 1; Zhang, Haifeng 2
刊名	JOURNAL OF ELECTROANALYTICAL CHEMISTRY
	2021
卷号	880 页码:9
关键词	Electrocatalysts Sandwich-like structure Amorphous ribbons Oxygen vacancies Oxygen evolution reaction
ISSN号	1572-6657
DOI	10.1016/j.jelechem.2020.114918
通讯作者	Zhu, Zhengwang(zwzhu@imr.ac.cn)
英文摘要	The amorphous catalysts can be electrochemically activated to expose active sites during the short-range order structure, greatly increasing the number of active sites and thus significantly improving the water oxidation activity. Herein, we developed disordered sandwich-like multi-layer structure with abundant oxygen vacancies as a highly excellent electrocatalyst for the oxygen evolution reaction (OER), which was derived from amorphous Ni40Fe40B20 ribbons precursors through in situ hydroxylation and electro-oxidation in alkaline solution. The as-fabricated product shows the low overpotential of 249 mV and 338 mV at a current of 10 mA?cm?2 and 250 mA?cm?2with a Tafel slope of 43 mV?dec?1, respectively. This excellent catalytic performance is attributed to the synergistic effect resulted from the hybrid composition of disordered ?-Ni(OH)2 and ?-FeOOH, excellent electron/mass transfer due to the presence of abundant oxygen vacancies and expandable actual surface area. Moreover, the catalysts after structural reconstruction still maintain good flexibility, which is good for industrial applications. This work may provide insight into the combination of disordered structure and oxygen vacancies through in situ grown on amorphous alloys and make them as promising industrial OER electrocatalysts.
资助项目	National Natural Science Foundation of China[51801209] ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[U1738101] ; Liaoning Revitalization Talents Program[XLYC1802078] ; Liaoning Revitalization Talents Program[XLYC1807062]
WOS研究方向	Chemistry ; Electrochemistry
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000639352200001
资助机构	National Natural Science Foundation of China ; Liaoning Revitalization Talents Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/162209]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhu, Zhengwang
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Hailong,Zhu, Zhengwang,Wang, Yuanyuan,et al. Disordered and oxygen vacancy-rich NiFe hydroxides/oxides in situ grown on amorphous ribbons for boosted alkaline water oxidation[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2021,880:9.
APA	Li, Hailong,Zhu, Zhengwang,Wang, Yuanyuan,Chen, Sen,Liu, Chunming,&Zhang, Haifeng.(2021).Disordered and oxygen vacancy-rich NiFe hydroxides/oxides in situ grown on amorphous ribbons for boosted alkaline water oxidation.JOURNAL OF ELECTROANALYTICAL CHEMISTRY,880,9.
MLA	Li, Hailong,et al."Disordered and oxygen vacancy-rich NiFe hydroxides/oxides in situ grown on amorphous ribbons for boosted alkaline water oxidation".JOURNAL OF ELECTROANALYTICAL CHEMISTRY 880(2021):9.