Academic Journal
High-efficiency electrocatalytic NO reduction to NH3 by nanoporous VN
| العنوان: | High-efficiency electrocatalytic NO reduction to NH3 by nanoporous VN |
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| المؤلفون: | Defeng Qi, Fang Lv, Tianran Wei, Mengmeng Jin, Ge Meng, Shusheng Zhang, Qian Liu, Wenxian Liu, Dui Ma, Mohamed S. Hamdy, Jun Luo, Xijun Liu |
| المصدر: | Nano Research Energy, Vol 1, Iss 2, p e9120022 (2022) |
| بيانات النشر: | Tsinghua University Press, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Chemistry LCC:Physics |
| مصطلحات موضوعية: | nh3 electrosynthesis, green route, nanoporous vn, no reduction reaction, high-performance, Chemistry, QD1-999, Physics, QC1-999 |
| الوصف: | Electrocatalytic NO reduction reaction to generate NH3 under ambient conditions offers an attractive alternative to the energy-extensive Haber–Bosch route; however, the challenge still lies in the development of cost-effective and high-performance electrocatalysts. Herein, nanoporous VN film is first designed as a highly selective and stable electrocatalyst for catalyzing reduction of NO to NH3 with a maximal Faradaic efficiency of 85% and a peak yield rate of 1.05 × 10–7 mol·cm–2·s–1 (corresponding to 5,140.8 μg·h–1·mgcat.–1) at –0.6 V vs. reversible hydrogen electrode in acid medium. Meanwhile, this catalyst maintains an excellent activity with negligible current density and NH3 yield rate decays over 40 h. Moreover, as a proof-of-concept of Zn–NO battery, it delivers a high power density of 2.0 mW·cm–2 and a large NH3 yield rate of 0.22 × 10–7 mol·cm–2·s–1 (corresponding to 1,077.1 μg·h–1·mgcat.–1), both of which are comparable to the best-reported results. Theoretical analyses confirm that the VN surface favors the activation and hydrogenation of NO by suppressing the hydrogen evolution. This work highlights that the electrochemical NO reduction is an eco-friendly and energy-efficient strategy to produce NH3. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2791-0091 2790-8119 |
| Relation: | https://www.sciopen.com/article/10.26599/NRE.2022.9120022; https://doaj.org/toc/2791-0091; https://doaj.org/toc/2790-8119 |
| DOI: | 10.26599/NRE.2022.9120022 |
| URL الوصول: | https://doaj.org/article/b4a7c7fc770c4019b178162cc9ecd924 |
| رقم الانضمام: | edsdoj.b4a7c7fc770c4019b178162cc9ecd924 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 27910091 27908119 |
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| DOI: | 10.26599/NRE.2022.9120022 |