Identification of FeN4 as an Efficient Active Site for Electrochemical N-2 Reduction
文献类型：期刊论文
| 作者 | He, Chao; Wu, Ze-Yuan; Zhao, Lu; Ming, Mei; Zhang, Yun; Yi, Yuanping; Hu, Jin-Song |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 9期号:8页码:7311-7317 |
| ISSN号 | 2155-5435 |
| DOI | 10.1021/acscatal.9b00959 |
| 英文摘要 | Electrocatalytic N-2 reduction to NH3 is an attractive method for artificial N-2 fixation at ambient conditions. Herein, we demonstrate that Fe-NC materials could be efficient for electrochemical N-2 reduction reaction (NRR) using iron phthalocyanine (FePc) with a well-defined FeN4 configuration as a model catalyst. By uniformly loading FePc molecules on porous carbon, it exhibits a high electrocatalytic activity for NRR with a NH3 yield rate of 137.95 mu g h(-1) mg(Fepc)(-1) at a low potential of -0.3 V (vs RHE). Importantly, by making comparisons with phthalocyanine without the Fe center and performing control and poisoning experiments together with theoretical calculations, we identify the Fe center in FeN4 as the most active site for NRR among five possible sites in FePc and discover that the preferred route is the alternating pathway of N-2 on Fe. These results open up opportunities for further exploring metal-nitrogen-carbon materials for highly efficient electrochemical N-2 fixation and NH3 production. |
| 语种 | 英语 |
| WOS记录号 | WOS:000480503700072 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/82695]  |
| 专题 | 中国科学院化学研究所 |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Chao,Wu, Ze-Yuan,Zhao, Lu,et al. Identification of FeN4 as an Efficient Active Site for Electrochemical N-2 Reduction[J]. ACS CATALYSIS,2019,9(8):7311-7317. |
| APA | He, Chao.,Wu, Ze-Yuan.,Zhao, Lu.,Ming, Mei.,Zhang, Yun.,...&Hu, Jin-Song.(2019).Identification of FeN4 as an Efficient Active Site for Electrochemical N-2 Reduction.ACS CATALYSIS,9(8),7311-7317. |
| MLA | He, Chao,et al."Identification of FeN4 as an Efficient Active Site for Electrochemical N-2 Reduction".ACS CATALYSIS 9.8(2019):7311-7317. |
入库方式： OAI收割
来源：化学研究所
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