Oxygen Vacancy-Rich In-Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn-Air Batteries

doi:10.1002/smll.201904210

	Oxygen Vacancy-Rich In-Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn-Air Batteries
	Jin, Wei 2,3; Chen, Jianping 2; Liu, Bing 2; Hu, Jiugang 4; Wu, Zexing 5; Cai, Weiquan 6; Fu, Gengtao 1
刊名	SMALL
	2019-09-27
页码	9
关键词	2D heterostructures bifunctional electrocatalysts In-doped CoO CoP oxygen vacancies Zn-air batteries
ISSN号	1613-6810
DOI	10.1002/smll.201904210
英文摘要	An efficient and low-cost electrocatalyst for reversible oxygen electrocatalysis is crucial for improving the performance of rechargeable metal-air batteries. Herein, a novel oxygen vacancy-rich 2D porous In-doped CoO/CoP heterostructure (In-CoO/CoP FNS) is designed and developed by a facile free radicals-induced strategy as an effective bifunctional electrocatalyst for rechargeable Zn-air batteries. The electron spin resonance and X-ray absorption near edge spectroscopy provide clear evidence that abundant oxygen vacancies are formed in the interface of In-CoO/CoP FNS. Owing to abundant oxygen vacancies, porous heterostructure, and multiple components, In-CoO/CoP FNS exhibits excellent oxygen reduction reaction activity with a positive half-wave potential of 0.81 V and superior oxygen evolution reaction activity with a low overpotential of 365 mV at 10 mA cm(-2). Moreover, a home-made Zn-air battery with In-CoO/CoP FNS as an air cathode delivers a large power density of 139.4 mW cm(-2), a high energy density of 938 Wh kg(Zn)(-1), and can be steadily cycled over 130 h at 10 mA cm(-2), demonstrating great application potential in rechargeable metal-air batteries.
资助项目	National Natural Science Foundation of China[51604253] ; MOE & SAFEA for the 111 Project[B13025] ; Fundamental Research Funds for the Central Universities[JUSRP21936]
WOS关键词	X-RAY-ABSORPTION ; RECENT PROGRESS ; REDUCTION ; COBALT ; EFFICIENT ; ELECTROCATALYST ; NANOSHEETS ; NANOARRAYS ; HYDROGEN ; CARBIDE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000487826500001
资助机构	National Natural Science Foundation of China ; MOE & SAFEA for the 111 Project ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/31010]
专题	中国科学院过程工程研究所
通讯作者	Jin, Wei; Fu, Gengtao
作者单位	1.Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore 2.Jiangnan Univ, Sch Chem & Mat Engn, Wuxi 214122, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, 1th Ber Er Tiao Zhongguancun, Beijing 100190, Peoples R China 4.Cent S Univ, Coll Chem & Chem Engn, 932th South Lushan Rd, Changsha 410083, Hunan, Peoples R China 5.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, State Key Lab Base Ecochem Engn, 53 Zhengzhou Rd, Qingdao 266042, Shandong, Peoples R China 6.Guangzhou Univ, Sch Chem & Chem Engn, 230 Guangzhou Univ City Outer Ring Rd, Guangzhou 510006, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Jin, Wei,Chen, Jianping,Liu, Bing,et al. Oxygen Vacancy-Rich In-Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn-Air Batteries[J]. SMALL,2019:9.
APA	Jin, Wei.,Chen, Jianping.,Liu, Bing.,Hu, Jiugang.,Wu, Zexing.,...&Fu, Gengtao.(2019).Oxygen Vacancy-Rich In-Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn-Air Batteries.SMALL,9.
MLA	Jin, Wei,et al."Oxygen Vacancy-Rich In-Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn-Air Batteries".SMALL (2019):9.