CoxC encased in carbon nanotubes: an efficient oxygen reduction catalyst under both acidic and alkaline conditions
文献类型：期刊论文
| 作者 | Chen, Lisong1; Cui, Xiangzhi1; Wang, Qingsong1; Zhang, Xiaohua1; Wan, Gang1; Cui, Fangming2; Wei, Chenyang1; Shi, Jianlin1 |
| 刊名 | DALTON TRANSACTIONS
 |
| 出版日期 | 2015 |
| 卷号 | 44期号:47页码:20708-20713 |
| 英文摘要 | The design of a non-precious metal oxygen reduction reaction (ORR) catalyst of high activity and long durability in acidic electrolyte is of great importance for the development and commercialization of low-temperature fuel cells, which remains a great challenge to date. Here, we demonstrate a facile, scalable protocol for the controlled synthesis of CoxC encapsulated in carbon nanotubes as a novel kind of efficient electrochemical oxygen reduction reaction (ORR) catalyst. The synthesized CoxC/carbon nanotube features a high BET surface area, large pore volume and high graphitic content, which greatly favors enhanced ORR properties. The resultant composite electro-catalyst shows high ORR activity which is comparable with that of 20 wt% Pt/C in 0.1 M KOH electrolyte. More importantly, it also exhibits a high ORR activity in 0.1 M HClO4 with a near-complete 4e pathway. More attractively, compared to the most investigated FexC, CoxC as the proposed main catalytically active center shows much enhanced activity in acidic electrolyte, which will pave the way towards the rational design of an advanced electro-catalyst for an efficient ORR process especially under acidic conditions. Moreover, a fuel cell using the synthesized CoxC/carbon nanotube as a cathode catalyst showed a large open-circuit potential, high output power density and long durability, which make it a promising alternative to Pt/C as a non-precious metal ORR catalyst in proton exchange membrane fuel cells. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Inorganic & Nuclear |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | METAL-FREE ELECTROCATALYSTS ; SULFUR-DOPED GRAPHENE ; FUEL-CELLS ; NITROGEN ; NANOPARTICLES ; CONFINEMENT ; ROUTE ; BORON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365411500049 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/8233]  |
| 专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.China Acad Space Technol, Qian Xuesen Lab Space Technol, Beijing 100094, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Lisong,Cui, Xiangzhi,Wang, Qingsong,et al. CoxC encased in carbon nanotubes: an efficient oxygen reduction catalyst under both acidic and alkaline conditions[J]. DALTON TRANSACTIONS,2015,44(47):20708-20713. |
| APA | Chen, Lisong.,Cui, Xiangzhi.,Wang, Qingsong.,Zhang, Xiaohua.,Wan, Gang.,...&Shi, Jianlin.(2015).CoxC encased in carbon nanotubes: an efficient oxygen reduction catalyst under both acidic and alkaline conditions.DALTON TRANSACTIONS,44(47),20708-20713. |
| MLA | Chen, Lisong,et al."CoxC encased in carbon nanotubes: an efficient oxygen reduction catalyst under both acidic and alkaline conditions".DALTON TRANSACTIONS 44.47(2015):20708-20713. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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