期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2025-03-01 |
| 作品名稱 | Unveiling the role of heteroatom doping and strain in Core-Shell catalysts for CO2RR |
| 作品名稱（其他語言） | |
| 著者 | Yiran Bai; Yunjian Wang; Yibing Yang; Chen Sun; Hsiao-Tsu Wang; Chi-Feng Lee; Cheng-You Li; Tingting Zheng; Kunpeng Jiang; Lili Han |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Chemical Engineering Journal 507, 160155 |
| 摘要 | The conversion of CO2 into valuable multi-carbon products via electrocatalytic reduction represents a pivotal strategy for addressing environmental concerns and energy demands. In this study, we present a novel core–shell Ag-doped Cu2O (Ag NPs/Cu2O) catalyst, which demonstrates enhanced selectivity and activity for the electrochemical reduction of CO2 to C2H4. The unique structure of Ag NPs/Cu2O, featuring Ag as the core and Cu2O as the shell, enables the simultaneous regulation of both the lattice structure and the electronic structure. This design leads to a significant increase in the Faradaic efficiency (FE) of C2H4, reaching 77.4 % at −1.3 V vs. RHE, which represents a 31.2 % increase compared to the undoped Cu2O. Our findings reveal that the combined effects of tandem and strain generated by Ag-doping are significant contributing factors. In brief, the internal Ag functions as a “storage chamber” for *CO through the tandem effect, thereby ensuring an adequate supply. Furthermore, the direct doping of Ag into Cu2O gives rise to alterations in the lattice and charge distribution. It is vital for enhancing the electron transfer and interaction between the catalyst and the *CO–*CO intermediate, which serves to lower the *COCO coupling energy barrier to improve the selectivity to C2H4. In conclusion, the carbon dioxide reduction reaction (CO2RR) process is promoted by the lowering of the limiting potential. This work provides insights into the design of efficient electrocatalysts for CO2 reduction, emphasizing the importance of heteroatom doping and strain engineering in modulating catalyst selectivity and activity. |
| 關鍵字 | Carbon Dioxide Reduction Reaction; Core-Shell Catalyst; Ethylene; Selectivity Enhancement |
| 語言 | en |
| ISSN | 1385-8947; 1873-3212 |
| 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 | NLD |
| 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/987654321/129457 ) |