Selective electrocatalytic reduction of nitrate for the synthesis of hydroxylamine with Cu-ZnO/N-C catalyst
Rattachement africain : jp, cn. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Electrocatalytic reduction of nitrate for the synthesis of high-value chemical hydroxylamine (NH 2 OH) represents a sustainable pathway that combines the dual functions of green synthesis and wastewater treatment. However, the selective control of the process is extremely challenging, mainly due to the susceptibility of nitrate to over-reduction during the reaction, leading to uncontrolled conversion of the target product NH 2 OH to the thermodynamically stable product ammonia (NH 3 ). In this paper, the Cu-PDA MOF precursor was synthesized using the emulsion method, and ZIF-8 was introduced to form the structure of Cu-PDA@ZIF-8. Subsequently, the nitrogen-carbon-doped Cu-ZnO/N-C catalysts were formed by calcination under N 2 atmosphere. The synthesized catalyst effective improved NH 2 OH selectivity during nitrate reduction. The NH 2 OH yield and FE efficiency of Cu-ZnO/N-C reached 564.97 μmol h −1 mg cat −1 and 46.64 %, respectively, under neutral electrolyte conditions. Cu, as the main component of the catalyst, plays a dominant role in hydroxylamine by electrocatalytic nitrate reduction to promote the reaction in the stage of NO 3 – →*NH 2 OH. Zn, on the other hand, plays a key role in the phase *NH 2 OH → NH 2 OH, selectively generating the product NH 2 OH and blocking the excessive reduction of NH 2 OH to NH 3 . Additionally, this study achieved tandem catalytic selective generation of NH 2 OH at copper and zinc heterogeneous interfaces and offers a potential approach and reference for applications involving the nitrate reduction reaction.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Selective electrocatalytic reduction of nitrate for the synthesis of hydroxylamine with Cu-ZnO/N-C catalyst
- Date Crossref
- 01/03/2026
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Tohoku University Advanced Institute for Materials Research (WPI-AIMR) pays non établi dans la noticeUniversité ou école supérieure
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Advanced Institute of Materials Science pays non établi dans la noticeStructure de recherche
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Wuhan Institute of Technology pays non établi dans la noticeUniversité ou école supérieure
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Hubei University of Automotive Technology pays non établi dans la noticeUniversité ou école supérieure
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School of Chemistry and Environmental Engineering pays non établi dans la noticeUniversité ou école supérieure
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School of Automotive Materials pays non établi dans la noticeUniversité ou école supérieure
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Independent Researcher pays non établi dans la noticeInstitution
Advanced Institute for Materials Research (WPI-AIMR) — Tohoku University, Advanced Institute of Materials Science et Wuhan Institute of Technology, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.