Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization

doi:10.1007/s11581-019-03273-1

	Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization
	Chen, Linjing 1; Feng, Wangjun1,2 ; Pu, Zhongsheng1,2 ; Wang, Xuan 1,2; Song, Changkun 1
	2019-10-26
发表期刊	IONICS
ISSN	0947-7047
卷号	25 期号:12 页码:5625-5632
摘要	A carbon-coated lithium iron phosphate (LiFePO4@C) cathode materials were synthesized by a sol-gel method assisted by biomineralization. Yeast acted as a template and biocarbon source. NH3 center dot H2O was used to adjust the pH in the preparation process, which effectively controlled the morphology. The LiFePO4@C synthesized at pH = 7 exhibited an optimal electrochemical performance, with a discharge capacity of 159.6 mAh/g at 0.1 C rate. Electrochemical impedance spectroscopy and cyclic voltammetry were applied to further analyze the impact of pH value. The optimized electrode also exhibited stable cycling characteristics. The improved electrochemical properties were ascribed to uniform spherical morphology and low electrochemical impedance. The biosynthetic sol-gel route can be desired to prepare LiFePO4@C cathode materials.
关键词	LFP@C Cathode materials Yeast Biomineralization Sol-gel method
DOI	10.1007/s11581-019-03273-1
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Electrochemistry ; Physics
WOS类目	Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS记录号	WOS:000492558800001
出版者	SPRINGER HEIDELBERG
EI入藏号	20194507633160
EI主题词	Sol-gel process
EI分类号	701.1 Electricity: Basic Concepts and Phenomena - 801 Chemistry - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 812.3 Glass - 822.3 Food Products - 951 Materials Science
引用统计	被引频次：13[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/64295
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理学院
通讯作者	Feng, Wangjun
作者单位	1.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	理学院
通讯作者单位	理学院; 省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	理学院
推荐引用方式 GB/T 7714	Chen, Linjing,Feng, Wangjun,Pu, Zhongsheng,et al. Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization[J]. IONICS,2019,25(12):5625-5632.
APA	Chen, Linjing,Feng, Wangjun,Pu, Zhongsheng,Wang, Xuan,&Song, Changkun.(2019).Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization.IONICS,25(12),5625-5632.
MLA	Chen, Linjing,et al."Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization".IONICS 25.12(2019):5625-5632.