期刊論文
| 學年 | 109 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2020-10-01 |
| 作品名稱 | Coexisting Single-Atomic Fe and Ni Sites on Hierarchically Ordered Porous Carbon as a Highly Efficient ORR Electrocatalyst |
| 作品名稱（其他語言） | |
| 著者 | Zhengju Zhu; Huajie Yin; Yun Wang; Cheng-Hao Chuang; Lei Xing; Mengyang Dong; Ying-Rui Lu; Gilberto Casillas-Garcia; Yonglong Zheng; Shan Chen; Yuhai Dou; Porun Liu; Qilin Cheng; Huijun Zhao |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Advanced Materials 32(42), 2004670 |
| 摘要 | The development of oxygen reduction reaction (ORR) electrocatalysts based on earth‐abundant nonprecious materials is critically important for sustainable large‐scale applications of fuel cells and metal–air batteries. Herein, a hetero‐single‐atom (h‐SA) ORR electrocatalyst is presented, which has atomically dispersed Fe and Ni coanchored to a microsized nitrogen‐doped graphitic carbon support with unique trimodal‐porous structure configured by highly ordered macropores interconnected through mesopores. Extended X‐ray absorption fine structure spectra confirm that Fe‐ and Ni‐SAs are affixed to the carbon support via FeN4 and NiN4 coordination bonds. The resultant Fe/Ni h‐SA electrocatalyst exhibits an outstanding ORR activity, outperforming SA electrocatalysts with only Fe‐ or Ni‐SAs, and the benchmark Pt/C. The obtained experimental results indicate that the achieved outstanding ORR performance results from the synergetic enhancement induced by the coexisting FeN4 and NiN4 sites, and the superior mass‐transfer capability promoted by the trimodal‐porous‐structured carbon support. |
| 關鍵字 | |
| 語言 | en_US |
| ISSN | 09359648 |
| 期刊性質 | 國外 |
| 收錄於 | SCI Scopus |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/120718 ) |