期刊論文
| 學年 | 114 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2025-11-26 |
| 作品名稱 | Dynamic Electron Spring Effect in Hollow Fe2O3/CoSe2 Heterostructure Enhance Ethanol Electro-Oxidation Activity and Stability |
| 作品名稱（其他語言） | |
| 著者 | Shunlian Ning; Yongqi Jian; Guang-Qiang Yu; Jinchang Xu; Ming-Hsien Lee; Dawei Wang; HongYan Chen; Mihail Barboiu; Xiaojun Liu; Dengke Zhao; Linjing Yang; Nan Wang |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Advanced Functional Materials 35(48), 2509007 |
| 摘要 | Developing efficient non-noble electrocatalysts with high activity and selectivity for ethanol oxidation reaction (EOR) across a wide potential range remains a significant challenge in hybrid energy systems. Herein, hollow Fe2O3/CoSe2 heterostructures (H-Fe2O3/CoSe2@C) via interface engineering are reported as highly effective EOR promising electrocatalysts. Characterizations reveal that Fe2O3 functions as a dynamic electron spring to tune the electronic structure of Co sites, accelerating the formation of the Fe2O3/CoOOH heterostructure while suppressing Fe2O3/CoO2 evolution. In situ Raman spectroscopy and theoretical calculation confirm that the Fe2O3/CoOOH heterostructure enhances EOR kinetics and lowers the energy barrier of the potential-determining step. Quasi in situ X-ray photoelectron spectroscopy further demonstrates that Fe2O3 stabilizes Co3+against overoxidation, expanding the operational potential window. Consequently, H-Fe2O3/CoSe2@C achieves outstanding EOR performance, exhibiting 10 mA cm−2 @1.30 V vs. RHE with a high faradaic efficiency of 99% at 1.30 V. Ethanol-assisted Zn-Air battery/water splitting devices based on H-Fe2O3/CoSe2@C demonstrate enhanced energy conversion efficiency, with voltage reduced by 210 and 180 mV at 10 mA cm−2, respectively. This work provides critical insights for designing heterostructure electrocatalysts and advancing the utilization of biomass energy. |
| 關鍵字 | electronic structure regulation; ethanol oxidation reaction; Fe2O3/CoSe2 heterostructure; spring effect |
| 語言 | en |
| ISSN | 1616-301X; 1616-3028 |
| 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 | DEU |
| 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/987654321/129547 ) |