期刊論文
| 學年 | 109 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2021-01-14 |
| 作品名稱 | Elucidation of the synergistic effect of dopants and vacancies on promoted selectivity for CO2 electroreduction to Formate |
| 作品名稱（其他語言） | |
| 著者 | Zhongjian Li; Ang Cao; Qiang Zheng; Yuanyuan Fu; Tingting Wang; K. Thanigal Arul; Jeng-Lung Chen; Bin Yang; Nadia Mohd Adli; Lecheng Lei; Chung-Li Dong; Jianping Xiao; Gang Wu; Yang Hou |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Advanced Materials 33(2), 2005113 |
| 摘要 | Sn-based materials are identified as promising catalysts for the CO2 electroreduction (CO2RR) to formate (HCOO−). However, their insufficient selectivity and activity remain grand challenges. A new type of SnO2 nanosheet with simultaneous N dopants and oxygen vacancies (VO-rich N-SnO2 NS) for promoting CO2 conversion to HCOO− is reported. Due to the likely synergistic effect of N dopant and VO, the VO-rich N-SnO2 NS exhibits high catalytic selectivity featured by an HCOO− Faradaic efficiency (FE) of 83% at −0.9 V and an FE of > 90% for all C1 products (HCOO− and CO) at a wide potential range from −0.9 to −1.2 V. Low coordination Sn–N moieties are the active sites with optimal electronic and geometric structures regulated by VO and N dopants. Theoretical calculations elucidate that the reaction free energy of HCOO* protonation is decreased on the VO-rich N-SnO2 NS, thus enhancing HCOO− selectivity. The weakened H* adsorption energy also inhibits the hydrogen evolution reaction, a dominant side reaction during the CO2RR. Furthermore, using the catalyst as the cathode, a spontaneous Galvanic Zn-CO2 cell and a solar-powered electrolysis process successfully demonstrated the efficient HCOO− generation through CO2 conversion and storage. |
| 關鍵字 | |
| 語言 | en_US |
| ISSN | 0935-9648 |
| 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 | DEU |
| 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/987654321/120896 ) |