One-pot hydrothermal synthesis of porous nickel cobalt phosphides with high conductivity for advanced energy conversion and storage

doi:10.1016/j.electacta.2016.08.074

	One-pot hydrothermal synthesis of porous nickel cobalt phosphides with high conductivity for advanced energy conversion and storage
	Hu, Yu-Mei 1; Liu, Mao-Cheng1,2 ; Hu, Yu-Xia 3; Yang, Qing-Qing 1; Kong, Ling-Bin2 ; Kang, Long 2
	2016-10
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	215 页码:114-125
摘要	High electrical conductivity is a vital factor to improve electrochemical performance of energy storage materials. In this work, bimetallic nickel cobalt phosphides with high electrical conductivity and different Ni/Co molar ratios are directly fabricated via a simple hydrothermal method. The samples show uniform teeny nanoparticles morphology and excellent electrochemical performance. The NiCoP sample exhibits the most prominent specific capacity (571 C g(-1) at 1 A g(-1)) and out-bound rate characteristic (72.8% capacity retention with a 20-fold increase in current densities), which can be attributed to the good crystallinity, larger specific surface area, and noteworthy intrinsic conductivity that convenient for fast electron transfer in active material and fleet reversible faradic reaction characteristics. Simultaneously, an optimal asymmetric supercapacitor based on NiCoP as positive and activated carbon as negative is assembled. It can achieve a high energy density of 32 Wh kg(-1) (at a power density of 0.351 kW kg(-1)) and prominent cycling stability with 91.8% initial capacity retention after 3000 cycles. It demonstrates that nickel cobalt phosphides are promising as energy storage materials. The study could also pave the way to explore a new class of bimetallic phosphides materials high electrical conductivity for electrochemical energy storage. (C) 2016 Elsevier Ltd. All rights reserved.
关键词	nickel cobalt phosphides particles high electrical conductivity asymmetric supercapacitor
DOI	10.1016/j.electacta.2016.08.074
收录类别	SCI ; SCIE
语种	英语
资助项目	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology[SKLAB02014005]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000384008900015
出版者	PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号	20163502744741
EI主题词	Phosphorus compounds
EI分类号	504.3 Heavy Metal Mines - 525.5 Energy Conversion Issues - 525.7 Energy Storage - 694.4 Storage - 701.1 Electricity: Basic Concepts and Phenomena - 802.2 Chemical Reactions - 804 Chemical Products Generally - 931.3 Atomic and Molecular Physics - 951 Materials Science
引用统计	被引频次：143[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/33585
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
通讯作者	Liu, Mao-Cheng
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 3.Lanzhou City Univ, Sch Bailie Engn & Technol, Lanzhou 730070, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Hu, Yu-Mei,Liu, Mao-Cheng,Hu, Yu-Xia,et al. One-pot hydrothermal synthesis of porous nickel cobalt phosphides with high conductivity for advanced energy conversion and storage[J]. ELECTROCHIMICA ACTA,2016,215:114-125.
APA	Hu, Yu-Mei,Liu, Mao-Cheng,Hu, Yu-Xia,Yang, Qing-Qing,Kong, Ling-Bin,&Kang, Long.(2016).One-pot hydrothermal synthesis of porous nickel cobalt phosphides with high conductivity for advanced energy conversion and storage.ELECTROCHIMICA ACTA,215,114-125.
MLA	Hu, Yu-Mei,et al."One-pot hydrothermal synthesis of porous nickel cobalt phosphides with high conductivity for advanced energy conversion and storage".ELECTROCHIMICA ACTA 215(2016):114-125.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Hu-2016-One-pot hydr（5168KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载