期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2024-10-05 |
| 作品名稱 | Modulating intermediate coverage of single-atom catalyst for kinetics-boosted CO2 electroreduction in membrane electrode assembly |
| 作品名稱（其他語言） | |
| 著者 | Sixing Zheng; Yingnan Liu; Xiaoxuan Yang; Zilin Zhao; Qinghua Zhang; Bin Yang; Zhongjian Li; Chung-Li Dong; Lecheng Lei; Yang Hou |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Chemical Engineering Science 298, 120314 |
| 摘要 | Developing high-efficiency electrocatalysts with low overpotential and industrial-level current density is crucial to CO2 electroreduction (CO2ER). However, the poor modulating of intermediate *CO effective coverage results in low selectivity of target product. Herein, a feasible strategy to modulate *CO effective coverage on isolated nickel sites through S-coordinated doping (Ni-NSC) is reported. Incorporation of S species in the coordination of Ni-NSC leads to a low-coordination state of center Ni atom, which enhances hybridization of the d band with the 2π* orbital of CO, improving CO coverage. As a result, Ni-NSC reaches an industrial-level current density of over 280 mA cm−2 in a membrane electrode assembly device, and realizes the maximum FECO above 95 %. Control experiments and characterizations reveal that the monovalent Ni atomic center in the Ni-NSC after S doping promotes the formation of reactive intermediate *COLFB and improves *CO effective coverage, thus boosting the CO2ER kinetics. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1873-4405; 0009-2509 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | GBR |
| 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/987654321/127592 ) |