期刊論文
| 學年 | 114 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2025-09-21 |
| 作品名稱 | Ferromagnetic–antiferromagnetic interfaces in MAX phase electrocatalysts: a spin-driven platform for enhanced oxygen evolution reaction |
| 作品名稱（其他語言） | |
| 著者 | Deepak Vishnu SK; Chih-Ying Huang; Cheng-Rong Wu; Bo-Yan Lin; Chia-Chun Chen; Huang-Ming Tsai; Jau-Wern Chiou; Raman Sankar; Tsyr-Yan Yu; Chi-Kung Ni; Way-Faung Pong; Chun-Wei Chen |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Sustainable Energy & Fuels 9(18), p.4894-4901 |
| 摘要 | The oxygen evolution reaction (OER) is limited by high activation barriers and sluggish kinetics, constraining the efficiency of water electrolysis. Spin-polarized electrons on catalyst surfaces are crucial for generating parallel spin-aligned oxygen, thereby enhancing OER performance. This study introduces a novel electrocatalyst system using a ferromagnetic (FM) MAX phase to improve spin-enhanced OER activity. Through isomorphous replacement, we synthesized the Ti2FeN (TFN) MAX phase with excess iron toppling onto its surface (T-TFN). Unlike the pristine TFN with a Curie temperature (TC) of 208 K, T-TFN exhibits room-temperature ferromagnetism, with a TC exceeding 300 K. When paired with non-FM Co3O4 nanoparticles, the T-TFN/Co3O4 hybrid system demonstrates significantly enhanced OER activity under an external magnetic field. The FM ordering in T-TFN induces spin alignment at the TFN/Co3O4 interface via the spin-pinning effect, reducing electron–electron repulsion and facilitating efficient charge transfer. This synergy of high conductivity and room-temperature ferromagnetism in T-TFN creates an effective platform for magnetic field-assisted electrocatalysis. The hybrid system highlights the potential of FM MAX phases as a catalyst support, paving the way for more efficient OER and advancements in water-splitting technologies. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 2398-4902 |
| 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 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/129489 ) |