ZIF-derived carbons as highly efficient and stable ORR catalyst
文献类型：期刊论文
| 作者 | Lv, Luqiang1,2; Kang, Shuai1 ; Li, Xu1,2; Shen, Jun2; Liu, Shuangyi1
|
| 刊名 | NANOTECHNOLOGY
 |
| 出版日期 | 2018-11-30 |
| 卷号 | 29期号:48页码:9 |
| 关键词 | zeolitic imidazolate frameworks (ZIF) none-precious metal catalysts (NPMCs) oxygen reduction reaction (ORR) reduced graphene oxide (rGO) proton exchange membrane fuel cell (PEMFC) |
| ISSN号 | 0957-4484 |
| DOI | 10.1088/1361-6528/aae0ae |
| 英文摘要 | To develop highly efficient none-precious metal catalysts in lieu of Pt/C for catalyzing oxygen reduction reaction (ORR), ZIF-67 derived carbons are fabricated rationally in combination with reduced graphene oxide (rGO) integration and further KOH etching respectively. ZIF-C/rGO presents excellent ORR activity especially in alkali media with onset potential, half-wave potential and limited current density being 1.00 V, 0.87 V and 5.92 mA cm(-2), respectively, which are close approaching or superior to those of commercial Pt/C. Although the ORR activity in acid media is still a little inferior to that of the Pt/C, the durability of ZIF-C/rGO is better in both alkali and acid electrolytes. Further KOH etching (ZIF-C/rGO-KOH) reduces active N sites and destroys the micropores with resulting in reduced ORR performances, though more mesopore Brunauer-Emmett-Teller surface and volume are obtained. Through comparable study, huge performance enhancements form rGO integration is attributed to the attained higher charge transfer channels, more micropores with avoiding great losses of N and Co active sites can depress over polarization of electrolyte, aggregation of active components and collapsing of mass transport channels, on which the ORR activity is boosted to the extreme due to the resulted synergistic effect. |
| 资助项目 | program of Hundreds talents of Chinese Academy of Sciences ; Fundamental and advanced technology Research Funds of Chongqing[cstc2015jcyjBX0103] ; Key Industry Technology Innovation Fund of Science and Technology Development Board of Xiangcheng district of Suzhou[XJ201608] ; Science and Technology Project of Beibei district of Chongqing[2016-27] ; Foundation of the State Key Laboratory of Mechanical Transmission of Chongqing University of China[SKLMTZZKT-2017M15] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000446176100001 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/6760]  |
| 专题 | 微纳制造与系统集成研究中心 |
| 通讯作者 | Shen, Jun; Liu, Shuangyi |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Luqiang,Kang, Shuai,Li, Xu,et al. ZIF-derived carbons as highly efficient and stable ORR catalyst[J]. NANOTECHNOLOGY,2018,29(48):9. |
| APA | Lv, Luqiang,Kang, Shuai,Li, Xu,Shen, Jun,&Liu, Shuangyi.(2018).ZIF-derived carbons as highly efficient and stable ORR catalyst.NANOTECHNOLOGY,29(48),9. |
| MLA | Lv, Luqiang,et al."ZIF-derived carbons as highly efficient and stable ORR catalyst".NANOTECHNOLOGY 29.48(2018):9. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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