Lanzhou University of Technology Institutional Repository (LUT_IR)
Polycationic bimetallic oxide CoGa2O4 with spinel structure: dominated pseudocapacitance, dual-energy storage mechanism, and Li-ion hybrid supercapacitor application | |
He, Zheng-Hua1; Gao, Jian-Fei1; Kong, Ling-Bin1,2![]() | |
2019-11-08 | |
发表期刊 | IONICS
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ISSN | 0947-7047 |
卷号 | 26期号:3页码:1379-1388 |
摘要 | In this work, the polycationic bimetallic oxide CoGa2O4 with spinel structure was successfully prepared by simple hydrothermal and subsequent calcination methods. Following, half-cell electrochemical test showed that this material presented a hybrid energy storage mechanism, namely combining Ga alloying and Co3O4 conversion. The combination of the two energy story mechanisms makes CoGa2O4 have higher conductivity than other single metal oxides. According to the calculation of the relationship between peak current and sweep speed, the b = 0.93 of CoGa2O4 is obtained, and its electrochemical behavior is closer to capacitive behavior than that of Co3O4 and NiCo2O4. This makes it have excellent rate performance and cycle stability. Consequently, the CoGa2O4//AC Li-ion hybrid supercapacitor (LIHSC) device exhibits excellent cycling stability (capacity retention of 83% after 8000 cycles), high-energy density of 111.5 Wh kg(-1) (at 100 W kg(-1)), and high power density of 3927 W kg(-1) (at 24 Wh kg(-1)). |
关键词 | Dual-energy storage mechanism Polycationic bimetallic oxide Dominated pseudocapacitance High electrical conductivity Lithium-ion hybrid supercapacitor |
DOI | 10.1007/s11581-019-03249-1 |
收录类别 | SCI ; SCIE |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[51762031][51971104] |
WOS研究方向 | Chemistry ; Electrochemistry ; Physics |
WOS类目 | Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter |
WOS记录号 | WOS:000495061200002 |
出版者 | SPRINGER HEIDELBERG |
EI入藏号 | 20194607688835 |
EI主题词 | Cobalt alloys |
EI分类号 | 525.7 Energy Storage - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 694.4 Storage |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/64217 |
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 | Kong, Ling-Bin |
作者单位 | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, 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 | He, Zheng-Hua,Gao, Jian-Fei,Kong, Ling-Bin. Polycationic bimetallic oxide CoGa2O4 with spinel structure: dominated pseudocapacitance, dual-energy storage mechanism, and Li-ion hybrid supercapacitor application[J]. IONICS,2019,26(3):1379-1388. |
APA | He, Zheng-Hua,Gao, Jian-Fei,&Kong, Ling-Bin.(2019).Polycationic bimetallic oxide CoGa2O4 with spinel structure: dominated pseudocapacitance, dual-energy storage mechanism, and Li-ion hybrid supercapacitor application.IONICS,26(3),1379-1388. |
MLA | He, Zheng-Hua,et al."Polycationic bimetallic oxide CoGa2O4 with spinel structure: dominated pseudocapacitance, dual-energy storage mechanism, and Li-ion hybrid supercapacitor application".IONICS 26.3(2019):1379-1388. |
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