Lanzhou University of Technology Institutional Repository (LUT_IR)
Impact of pH on preparation of LiFePO4@C cathode materials by a sol-gel route assisted by biomineralization | |
Chen, Linjing1; Feng, Wangjun1,2![]() ![]() | |
2019-10-26 | |
发表期刊 | IONICS
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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 | |
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. |
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