期刊論文
| 學年 | 112 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2023-12-20 |
| 作品名稱 | Strain-Controlled Intermetallic PtZn Nanoparticles via N-Doping Propel Highly Efficient Oxygen Reduction Electrocatalysis |
| 作品名稱（其他語言） | |
| 著者 | Wang, Hsiao-tsu |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | ACS Sustainable Chem. Eng. 12(1), p.405-415 |
| 摘要 | Targeting high-performance yet cost-effective Pt-based catalysts with low Pt usage and high Pt utilization remains a big challenge in the oxygen reduction reaction (ORR) electrocatalysis. In this work, we demonstrate delicate engineering of strain control via N-doping in ordered PtZn intermetallic nanoparticles supported on N-doped carbon (PtZnN/NC). Benefiting from the ameliorated compressive strain and consequently greatly optimized electronic structures, PtZnN/NC displays ultrahigh ORR activity and durability in both acidic and alkaline media, with respective high mass activities of 297.5 and 80.7 A gPt–1 at 0.9 VRHE, exceeding those of benchmark Pt/C by 8.3- and 2.8-folds. Theoretical calculations reveal that the N-doping effectively lowers the d-band center of PtZnN, resulting in loose binding of *OH on the PtZnN surface, which facilitates the potential-determining step with a reduced energy barrier. This work successfully offers strategic guidance for strain equilibration in alloys via N-doping toward the rational design of advanced electrocatalysts. |
| 關鍵字 | Pt-based alloy;N-doping;strain engineering;electrocatalysis;oxygen reduction reaction;Zn–air battery |
| 語言 | en_US |
| ISSN | 2168-0485 |
| 期刊性質 | 國外 |
| 收錄於 | SCI SSCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | TWN |
| 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/987654321/125224 ) |