期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2025-05-07 |
| 作品名稱 | Electron deficient oxygen species in highly OER active iridium anodes characterized by X-ray absorption and emission spectroscopy |
| 作品名稱（其他語言） | |
| 著者 | Lorena Alzate-Vargas; Lorenz J. Falling; Sourav Laha; Bettina Lotsch; Jau-Wern Chiou; Ting-Shan Chan; Way-Faung Pong; Cheng-Hao Chuang; J. J. Velasco Velez; T. E. Jones |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Physical Chemistry Chemical Physics 27(17), p.9252-9261 |
| 摘要 | Water splitting is a promising technology for storing energy, yet it is challenged by the lack of stable anode materials that can overcome the sluggishness of the oxygen evolution reaction (OER). Iridium oxides are among the most active and stable OER catalysts, however how these materials achieve their performance remains under discussion. The activity of iridium based materials has been attributed to both high metal oxidation states and the appearance of O 2p holes. Herein we employ a combination of techniques—X-ray absorption at the Ir LII,III-edge, X-ray absorption and emission at the O K-edge, along with ab initio methods—to identify and characterize ligand holes present in highly OER-active X-ray amorphous oxides. We find, in agreement with the original proposition based on X-ray absorption measurement at the O K-edge, that O 2p holes are present in these materials and can be associated with the increased activity during OER. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1463-9076; 1463-9084 |
| 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 | 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/987654321/129585 ) |