| DOI | Trouver le DOI : https://doi.org/10.1002/smtd.201800324 |
|---|
| Auteur | Rechercher : Yao, YaoIdentifiant ORCID : https://orcid.org/0000-0002-7519-3738; Rechercher : Feng, Qi; Rechercher : Zhu, ShangqianIdentifiant ORCID : https://orcid.org/0000-0002-5813-9588; Rechercher : Li, Jiadong; Rechercher : Yao, Yuze; Rechercher : Wang, Yajun; Rechercher : Wang, Qi; Rechercher : Gu, Meng; Rechercher : Wang, Haijiang; Rechercher : Li, Hui; Rechercher : Yuan, Xiao‐Zi1; Rechercher : Shao, MinhuaIdentifiant ORCID : https://orcid.org/0000-0003-4496-0057 |
|---|
| Affiliation | - Conseil national de recherches du Canada. Énergie, les mines et l'environnement
|
|---|
| Format | Texte, Article |
|---|
| Résumé | The electrochemical synthesis of ammonia via nitrogen reduction reaction (NRR) has received much attention as a more environmentally friendly and less energy consuming technology than the conventional Haber–Bosch process. The catalytic activities of all NRR electrocatalysts reported so far, however, are very low under ambient conditions. In this study, partially oxidized chromium nitride (chromium oxynitride) nanoparticles are synthesized and their NRR activities are evaluated in a proton exchange membrane electrolyzer under ambient conditions. The highest ammonia formation rate of 8.9 × 10⁻¹¹ mol s⁻¹ cm⁻² and 15.56 µg h⁻¹ mg⁻¹cat are achieved at a cell voltage of 2.0 V. The highest Faradaic efficiency of 6.7% is achieved at a cell voltage of 1.8 V. The findings demonstrate that metal nitride–based materials can be promising electrocatalysts toward NRR and could guide rational design of more advanced catalysts for various reactions. |
|---|
| Date de publication | 2019-06 |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 9fa3be7d-7330-43b1-8942-d4264713d4d7 |
|---|
| Enregistrement créé | 2021-02-16 |
|---|
| Enregistrement modifié | 2021-02-16 |
|---|
