Zeolitic-imidazolate framework derived Ni-Co layered double hydroxide hollow microspheres with enhanced pseudocapacitive properties for hybrid supercapacitors
文献类型：期刊论文
| 作者 | Li, Xu1,2; Liu, Shuangyi1 ; Bai, Sihan1; Li, Zhenhu1; Shen, Jun2
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| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
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| 出版日期 | 2022-04-21 |
| 卷号 | 10期号:16页码:6348-6357 |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/d1tc05792h |
| 通讯作者 | Li, Zhenhu(lizhenhu@cigit.ac.cn) ; Shen, Jun(shenjun@cqu.edu.cn) |
| 英文摘要 | With the advantages of electrochemical activity for Ni and Co elements, as well as joint enhanced nature, layered double hydroxides (i.e., Ni-Co LDHs) are believed to be competitive candidates for hybrid supercapacitors (HSCs) but they possess poor structural stability. Here, a series of citrate-intercalated Ni-Co LDH electrode materials are synthesized by hydrolyzing ZIF-67 at room temperature. Due to three-carboxylic coordinate sites with metal hydroxide layers, citrate ions strongly support the layered structure as pillars and offer efficient enlarged interlayer paths for OH- transportation, resulting in an obviously enhanced utilization of the intrinsic properties of Ni-Co LDHs. In combination with the abundant active sites of hollow microsphere morphology, the electrochemical characteristics of Ni and Co elements are further determined, and thus, an evolution from typical pseudocapacitive to battery-type charge storing behaviors is first demonstrated. As a result, the Ni-Co-LDH-C-1:4 with a high Co content exhibits pseudocapacitive characteristics including high specific capacities of 135 and 124 mA h g(-1) at 1 and 10 A g(-1), and over 100% capacity retention after 10 000 charge-discharge cycles, showing excellent rate capability and cycling stability. Simultaneously, the Ni-Co-LDH-C-4:1 with a high Ni content demonstrates typical battery-type behavior with an obvious charge-discharge plateau and a maximum specific capacity of 255 mA h g(-1) (1835 F g(-1)) at 1 A g(-1), and good rate capability with 164 mA h g(-1) at 10 A g(-1). In addition, the hybrid electrode Ni-Co-LDH-M exhibits pseudocapacitance-like electrochemical characteristics due to the deliberate design of involving multiple compositions of Ni-Co-LDH-Cs, which is an anticipated property for battery-type electrodes to balance the dynamics of capacitive electrodes in HSCs. This method provides a route to design highly stable and activated pseudocapacitive electrodes for future-generation HSC applications. |
| 资助项目 | Youth Innovation Promotion Association of the Chinese Academy of Sciences[2020380] ; National Natural Science Foundation of China[21875245] ; Key Project of Application Development Plan of Chongqing City[cstc2019jscx-fxydX0007] ; Fundamental Research Funds for the Central Universities of China[2018CDGFCL0003] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000775153400001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/15478]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Li, Zhenhu; Shen, Jun |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China 2.Chongqing Univ, Coll Mat Sci & Engn, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xu,Liu, Shuangyi,Bai, Sihan,et al. Zeolitic-imidazolate framework derived Ni-Co layered double hydroxide hollow microspheres with enhanced pseudocapacitive properties for hybrid supercapacitors[J]. JOURNAL OF MATERIALS CHEMISTRY C,2022,10(16):6348-6357. |
| APA | Li, Xu,Liu, Shuangyi,Bai, Sihan,Li, Zhenhu,&Shen, Jun.(2022).Zeolitic-imidazolate framework derived Ni-Co layered double hydroxide hollow microspheres with enhanced pseudocapacitive properties for hybrid supercapacitors.JOURNAL OF MATERIALS CHEMISTRY C,10(16),6348-6357. |
| MLA | Li, Xu,et al."Zeolitic-imidazolate framework derived Ni-Co layered double hydroxide hollow microspheres with enhanced pseudocapacitive properties for hybrid supercapacitors".JOURNAL OF MATERIALS CHEMISTRY C 10.16(2022):6348-6357. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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