期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2025-04-09 |
| 作品名稱 | Electrosynthesis of Urea on High-Density Ga─Y Dual-Atom Catalyst via Cross-Tuning |
| 作品名稱（其他語言） | |
| 著者 | Dechao Chen; Yimeng Cai; Yi Xiao; Chengqiang Wang; Yong Li; Ke Ma; Dongdong Xiao; Hsiao-Tsu Wang; Chi-Feng Lee; Linjie Zhang; Hirofumi Ishii; Yu-Cheng Shao; Nozomu Hiraoka; Lili Han; Xueming Liu; Huolin L. Xin |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Advanced Materials 37(14), 2420593 |
| 摘要 | Electrochemically converting carbon dioxide (CO2) and nitrate (NO3−) into urea via the C─N coupling route offers a sustainable alternative to the traditional industrial urea production technology, but it is still limited by poor yield rate, low Faradaic efficiency, and insufficient coupling kinetics. Herein, a high-density Ga─Y dual-atom catalyst is developed with loading up to 14.1 wt.% of Ga and Y supported on N, P-co-doped carbon substrate (Ga/Y-CNP) for urea electrosynthesis. The catalyst facilitates efficient C─N coupling through co-reduction of CO2 and NO3−, resulting in a high urea yield rate of 41.9 mmol h−1 g−1 and a Faradaic efficiency of 22.1% at −1.4 V versus the reversible hydrogen electrode. In situ spectroscopy and theoretical calculations reveal that the superior performance is attributed to the cross-tuning between adjacent pair Ga─Y sites, which can mutually optimize their electronic states for facilitating CO2 reduction to *CO at Ga sites and promoting NO3− conversion to hydroxylamine (*NH2OH) at Y sites, followed by spontaneous coupling of *CO and *NH2OH intermediates at Ga─Y sites to form C─N bonds. This work offers a pioneering strategy to manipulate C─N coupling pathways by cross-tuning active sites to produce high-value-added chemicals. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0935-9648; 1521-4095 |
| 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,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/129453 ) |