Enhancing Interfacial Capacitance by Boron Doping in Vertically Porous Carbon Toward High-Performance AC Filtering Electrochemical Capacitors
文献类型：期刊论文
| 作者 | Chen, Bin1,2; Huang, Nan1,2; Zhai, Zhaofeng1; Zhang, Chuyan1; Liu, Lusheng1; Yang, Bing1,2; Jiang, Xin1,3 |
| 刊名 | SMALL
 |
| 出版日期 | 2024-01-31 |
| 页码 | 10 |
| 关键词 | AC filtering boron-doped carbon electrochemical capacitor interfacial capacitance vertical structure |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.202310523 |
| 通讯作者 | Huang, Nan(nhuang@imr.ac.cn) ; Jiang, Xin(xjiang@imr.ac.cn) |
| 英文摘要 | Electrochemical capacitors (ECs) show great perspective in alternate current (AC) filtering once they simultaneously reach ultra-fast response and high capacitance density. Nevertheless, the structure-design criteria of the two key properties are often mutually incompatible in electrode construction. Herein, it is proposed that combining vertically oriented porous carbon with enhanced interfacial capacitance (Ci) can efficiently solve this issue. Theoretically, the density function theory calculation shows that the Ci of a carbon electrode can be enhanced by boron doping due to the corresponding compact induced charge layer. Experimentally, the vertical-oriented boron-doped graphene nanowalls (BGNWs) electrodes, whose Ci is enhanced from 4.20 to 10.16 mu F cm-2 upon boron doping, are prepared on a large scale (480 cm2) using a hot-filament chemical vapor deposition technique (HFCVD). Owing to the high Ci and vertically oriented porous structure, BGNWs-based EC has a high capacitance density of 996 mu F cm-2 with a phase angle of - 79.4 degrees at 120 Hz in aqueous electrolyte and a high energy density of 1953 mu FV2 cm-2 in organic electrolyte. As a result, the EC is capable of smoothing 120 Hz ripples for 60 Hz AC filtering. These results provide enlightening insights on designing high-performance ECs for high-frequency applications. A novel electrode design strategy of combining vertically oriented porous carbon with boron-doping-cased high interfacial capacitance (Ci) is proposed to improve the performance of electrochemical capacitors (ECs) at high frequencies. The corresponding EC exhibits a capacitance density of 996 mu F cm-2 with a phase angle of -79.4 degrees at 120 Hz and excellent AC filtering capability. image |
| 资助项目 | National Natural Science Foundation of China ; Technical Innovation Project for Functional Development of Instruments and Equipment of the Chinese Academy of Sciences ; [51202257] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001152401700001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Natural Science Foundation of China ; Technical Innovation Project for Functional Development of Instruments and Equipment of the Chinese Academy of Sciences |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Huang, Nan; Jiang, Xin |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Univ Siegen, Inst Mat Engn, D-57076 Siegen, Germany |
| 推荐引用方式 GB/T 7714 | Chen, Bin,Huang, Nan,Zhai, Zhaofeng,et al. Enhancing Interfacial Capacitance by Boron Doping in Vertically Porous Carbon Toward High-Performance AC Filtering Electrochemical Capacitors[J]. SMALL,2024:10. |
| APA | Chen, Bin.,Huang, Nan.,Zhai, Zhaofeng.,Zhang, Chuyan.,Liu, Lusheng.,...&Jiang, Xin.(2024).Enhancing Interfacial Capacitance by Boron Doping in Vertically Porous Carbon Toward High-Performance AC Filtering Electrochemical Capacitors.SMALL,10. |
| MLA | Chen, Bin,et al."Enhancing Interfacial Capacitance by Boron Doping in Vertically Porous Carbon Toward High-Performance AC Filtering Electrochemical Capacitors".SMALL (2024):10. |
入库方式： OAI收割
来源：金属研究所
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