Fe3C cluster-promoted single-atom Fe, N doped carbon for oxygen-reduction reaction
文献类型：期刊论文
| 作者 | Lv, MY; Guo, HC; Shen, HJ; Wang, J; Wang, JC; Shimakawa, Y; Yang, MH |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2020-04-14 |
| 期号 | 14页码:7218 |
| ISSN号 | 1463-9076 |
| DOI | 10.1039/d0cp00109k |
| 文献子类 | Article |
| 英文摘要 | A key challenge in carrying out an efficient oxygen reduction reaction (ORR) is the design of a highly efficient electrocatalyst that must have fast kinetics, low cost and high stability for use in an energy-conversion device (e.g. metal-air batteries). Herein, we developed a platinum-free ORR electrocatalyst with a high surface area and pore volume via a molten salt method along with subsequent KOH activation. The activation treatment not only increases the surface area to 940.8 m(2) g(-1) by generating lots of pores, but also promotes the formation of uniform Fe3C nanoclusters within the atomic dispersed Fe-N-x carbon matrix in the final material (A-FeNC). A-FeNC displays excellent activity and long-term stability for the ORR in alkaline media, and shows a greater half-wave potential (0.85 V) and faster kinetics toward four-electron ORR as compared to those of 20 wt% Pt/C (0.83 V). As a cathode catalyst for the Zn-air battery, A-FeNC presents a peak power density of 102.2 mW cm(-2), higher than that of the Pt/C constructed Zn-air battery (57.2 mW cm(-2)). The superior ORR catalytic performance of A-FeNC is ascribed to the increased exposure of active sites, active single-atom Fe-N-C centers, and enhancement by Fe3C nanoclusters. |
| WOS关键词 | ACTIVE-SITES ; MESOPOROUS CARBON ; POROUS CARBON ; CATALYSTS ; ELECTROCATALYST ; NANOSHEETS ; NANOPARTICLES ; ACTIVATION ; BIOMASS ; GROWTH |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28145]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Lv, MY,Guo, HC,Shen, HJ,et al. Fe3C cluster-promoted single-atom Fe, N doped carbon for oxygen-reduction reaction[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2020(14):7218. |
| APA | Lv, MY.,Guo, HC.,Shen, HJ.,Wang, J.,Wang, JC.,...&Yang, MH.(2020).Fe3C cluster-promoted single-atom Fe, N doped carbon for oxygen-reduction reaction.PHYSICAL CHEMISTRY CHEMICAL PHYSICS(14),7218. |
| MLA | Lv, MY,et al."Fe3C cluster-promoted single-atom Fe, N doped carbon for oxygen-reduction reaction".PHYSICAL CHEMISTRY CHEMICAL PHYSICS .14(2020):7218. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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