دورية أكاديمية
Ni‐Doped CuO Nanoarrays Activate Urea Adsorption and Stabilizes Reaction Intermediates to Achieve High‐Performance Urea Oxidation Catalysts
| العنوان: | Ni‐Doped CuO Nanoarrays Activate Urea Adsorption and Stabilizes Reaction Intermediates to Achieve High‐Performance Urea Oxidation Catalysts |
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| المؤلفون: | Hainan Sun, Jiapeng Liu, Hyunseung Kim, Sanzhao Song, Liangshuang Fei, Zhiwei Hu, Hong‐Ji Lin, Chien‐Te Chen, Francesco Ciucci, WooChul Jung |
| المصدر: | Advanced Science, Vol 9, Iss 34, Pp n/a-n/a (2022) |
| بيانات النشر: | Wiley, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Science |
| مصطلحات موضوعية: | cation exchange, nanoarray structure, oxygen evolution reaction, transition and noble metals, urea oxidation reaction, Science |
| الوصف: | Abstract Urea oxidation reaction (UOR) with a low equilibrium potential offers a promising route to replace the oxygen evolution reaction for energy‐saving hydrogen generation. However, the overpotential of the UOR is still high due to the complicated 6e− transfer process and adsorption/desorption of intermediate products. Herein, utilizing a cation exchange strategy, Ni‐doped CuO nanoarrays grown on 3D Cu foam are synthesized. Notably, Ni‐CuO NAs/CF requires a low potential of 1.366 V versus a reversible hydrogen electrode to drive a current density of 100 mA cm−2, outperforming various benchmark electrocatalysts and maintaining robust stability in alkaline media. Theoretical and experimental studies reveal that Ni as the driving force center can effectively enhance the urea adsorption and stabilize CO*/NH* intermediates toward the UOR. These findings suggest a new direction for constructing nanostructures and modulating electronic structures, ultimately developing promising Cu‐based electrode catalysts. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2198-3844 20220480 |
| Relation: | https://doaj.org/toc/2198-3844 |
| DOI: | 10.1002/advs.202204800 |
| URL الوصول: | https://doaj.org/article/dde63a2be3044c9bbf9a8cd1c1ee83ac |
| رقم الأكسشن: | edsdoj.63a2be3044c9bbf9a8cd1c1ee83ac |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 21983844 20220480 |
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| DOI: | 10.1002/advs.202204800 |