Organophosphoric acid-derived CoP quantum dots@S,N-codoped graphite carbon as a trifunctional electrocatalyst for overall water splitting and Zn-air batteries

doi:10.1039/c8nr03299h

	Organophosphoric acid-derived CoP quantum dots@S,N-codoped graphite carbon as a trifunctional electrocatalyst for overall water splitting and Zn-air batteries
	Zheng LR(郑黎荣); Cao, MH; Zheng, LR; Hao, YN; Meng, T
刊名	NANOSCALE
	2018
卷号	10 期号:30 页码:14613-14626
ISSN号	2040-3364
DOI	10.1039/c8nr03299h
文献子类	Article
英文摘要	Developing highly efficient, low-cost, and multifunctional electro-catalysts to replace noble metals is of significant importance for energy storage and conversion systems. Herein, we demonstrate a facile strategy for the preparation of CoP quantum dots (QDs) embedded in S,N-codoped graphite carbon (CoP@SNC) by using organophosphoric acid as both phosphorus and carbon sources. Benefiting from the strong coupling and synergistic effect between CoP QDs and highly conductive S,N-codoped carbon, well-structured porosity and high specific surface area, the resulting CoP@SNC exhibits excellent activities for oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and oxygen reduction reaction (ORR), making it a trifunctional electro-catalyst for overall water splitting and rechargeable Zn-air batteries. When CoP@SNC is used for overall water splitting, a cell voltage as low as 1.64 V is required to reach the current density of 10 mA cm(-2); the obtained rechargeable Zn-air battery with CoP@SNC as the air cathode exhibits a high open-circuit voltage of 1.45 V, a very low discharge-charge voltage gap (0.83 V at 10 mA cm(-2)), and a long cycle life (up to 180 cycles). This work not only offers a new strategy for the synthesis of CoP@SNC but also presents its huge potential as a trifunctional electro-catalyst for clean energy systems.
电子版国际标准刊号	2040-3372
WOS关键词	OXYGEN EVOLUTION REACTION ; HIGH-PERFORMANCE ; HYDROGEN-EVOLUTION ; IN-SITU ; COBALT PHOSPHIDE ; BIFUNCTIONAL ELECTROCATALYST ; CO3O4 NANOCRYSTALS ; REDUCTION REACTION ; NANOWIRE ARRAYS ; GRAPHENE OXIDE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000441583400025
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286218]
专题	高能物理研究所_多学科研究中心
通讯作者	Zheng LR(郑黎荣)
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zheng LR,Cao, MH,Zheng, LR,et al. Organophosphoric acid-derived CoP quantum dots@S,N-codoped graphite carbon as a trifunctional electrocatalyst for overall water splitting and Zn-air batteries[J]. NANOSCALE,2018,10(30):14613-14626.
APA	郑黎荣,Cao, MH,Zheng, LR,Hao, YN,&Meng, T.(2018).Organophosphoric acid-derived CoP quantum dots@S,N-codoped graphite carbon as a trifunctional electrocatalyst for overall water splitting and Zn-air batteries.NANOSCALE,10(30),14613-14626.
MLA	郑黎荣,et al."Organophosphoric acid-derived CoP quantum dots@S,N-codoped graphite carbon as a trifunctional electrocatalyst for overall water splitting and Zn-air batteries".NANOSCALE 10.30(2018):14613-14626.