alpha-Fe2O3 spherical nanocrystals supported on CNTs as efficient non-noble electrocatalysts for the oxygen reduction reaction
文献类型：期刊论文
| 作者 | Sun, Meng ; Dong, Youzhen ; Zhang, Gong ; Qu, Jiuhui ; Li, Jinghong |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2014 |
| 卷号 | 2期号:33页码:13635-13640 |
| ISSN号 | 2050-7488 |
| 中文摘要 | Substitution of low-cost and non-noble-metal catalysts for expensive and scarce Pt to optimize the oxygen reduction reaction (ORR), aimed for applications in producing economical fuel calls, is crucial for solving the world-wide energy crisis in the future. A novel alpha-Fe2O3/CNT nanocatalyst Was synthesized via facile nucleation and crystal growth of alpha-Fe2O3 on carbon nanotubes (CNTs) using an annealing process. Characterization by X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) indicated that spherical alpha-Fe2O3 nanocrystals were well dispersed on CNTs, and were also stably stuck in the spatial structure formed by the stacked CNTs. The catalytic activity of alpha-Fe2O3/CNTs for ORR was measured to be almost twice as high as the activity of CNTs and of alpha-Fe2O3 for this reaction. The alpha-Fe2O3 loading on CNTs has a great influence on catalytic performance for ORR, and the special trigonal structure of alpha-Fe2O3 elevates ORR electroactivity. The kinetics studies suggest that the mechanism of the ORR reaction catalyzed by alpha-Fe2O3/CNTs primarily involves a four-electron-transfer pathway. Strong methanol tolerance and long durability are additional advantages of alpha-Fe2O3/CNTs. |
| WOS记录号 | WOS:000340514500057 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9495]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Sun, Meng,Dong, Youzhen,Zhang, Gong,et al. alpha-Fe2O3 spherical nanocrystals supported on CNTs as efficient non-noble electrocatalysts for the oxygen reduction reaction[J]. JOURNAL OF MATERIALS CHEMISTRY A,2014,2(33):13635-13640. |
| APA | Sun, Meng,Dong, Youzhen,Zhang, Gong,Qu, Jiuhui,&Li, Jinghong.(2014).alpha-Fe2O3 spherical nanocrystals supported on CNTs as efficient non-noble electrocatalysts for the oxygen reduction reaction.JOURNAL OF MATERIALS CHEMISTRY A,2(33),13635-13640. |
| MLA | Sun, Meng,et al."alpha-Fe2O3 spherical nanocrystals supported on CNTs as efficient non-noble electrocatalysts for the oxygen reduction reaction".JOURNAL OF MATERIALS CHEMISTRY A 2.33(2014):13635-13640. |
入库方式： OAI收割
来源：生态环境研究中心
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