期刊論文
| 學年 | 106 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2017-12-05 |
| 作品名稱 | Engineering the Coordination Geometry of Metal-organic Complex Electrocatalysts for Highly Enhanced Oxygen Evolution Reaction |
| 作品名稱（其他語言） | |
| 著者 | Dafeng Yan; Chung-Li Dong; Yu-Cheng Huang; Yuqin Zou; Chao Xie; Yanyong Wang; Yiqiong Zhang; Dongdong Liu; Shaohua Shend; Shuangyin Wang |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of Materials Chemistry A 6, p.805-810 |
| 摘要 | Designing highly efficient oxygen evolution reaction (OER) electrocatalysts is very important for various electrochemical devices. In this work, for the first time, we have successfully generated coordinatively unsaturated metal sites (CUMSs) in phytic acid–Co2+ (Phy–Co2+) based metal–organic complexes by engineering the coordination geometry with room-temperature plasma technology. The CUMSs can serve as active centers to catalyze the OER. The electron spin resonance and X-ray absorption spectra provide direct evidence that the coordination geometry is obviously modified with many CUMSs by the plasma treatment. The plasma treated Phy–Co2+ (P-Phy–Co2+) only requires an overpotential of 306 mV to reach 10 mA cm−2 on glassy carbon electrodes. When we expand this strategy to a CoFe bimetallic system, it only needs an overpotential of 265 mV to achieve 10 mA cm−2 with a small Tafel slope of 36.51 mV dec−1. P-Phy–Co2+ is superior to the state-of-the-art. Our findings not only provide alternative excellent OER electrocatalysts, but also introduce a promising principle to design advanced electrocatalysts by creating more CUMSs. |
| 關鍵字 | |
| 語言 | en_US |
| ISSN | 2050-7488 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 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/987654321/113674 ) |