CuO/Mn2O3 heterojunction for efficient electrochemical nitrate reduction to ammonia DOI

Xuetao Cheng,

Huilin Zhao,

Chao Fan

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(24), P. 10804 - 10808

Published: Jan. 1, 2024

A heterojunction catalyst CuO/Mn 2 O 3 constructed by CuO and Mn with a unique spindle-like morphology is successfully fabricated, which demonstrates excellent NO RR performance.

Language: Английский

Advances in electrocatalytic nitrate reduction to ammonia over Cu-based catalysts DOI
Zhibin Zhang, Kailun Yu, Hui Wang

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121123 - 121123

Published: Feb. 1, 2025

Language: Английский

Citations

1
Enhancing Efficiency of Nitrate Reduction to Ammonia by Fe and Co Nanoparticles Based Bimetallic Electrocatalyst DOI Open Access
Irina Kuznetsova, Olga Lebedeva, Dmitry Kultin

et al.

Published: June 21, 2024

Green and sustainable electrocatalytic conversion of nitrogen-containing compounds to ammonia are currently in high demand order replace the eco-unfriendly Haber-Bosch process. Model catalysts for nitrate reduction reaction were obtained by electrodeposition metal Co, Fe bimetallic Fe/Co nanoparticles from aqueous solutions onto a graphite substrate. The samples characterized following methods: SEM, XRD, XPS, UV-vis spectroscopy, cyclic (and linear) voltammetry, chronoamperometry electrochemical impedance spectroscopy. Besides, determination electrochemically active surface was also performed all electrocatalysts. best electrocatalyst sample containing Fe-nanoparticles on layer Co-nanoparticles, which showed Faradaic efficiency 58.2% (E=-0.785 V vs. RHE) at yield rate 14.6 μmol h-1 cm-2. An opinion expressed elucidation mechanism coordinated action electrocatalyst. This work can serve primarily as starting point future investigations reactions using model proposed type.

Language: Английский

Citations

6
Multimetallic catalysts with rich oxygen vacancies for efficient reduction of nitrate to ammonia DOI

Meiqin Xu,

Hui Liu

Ionics, Journal Year: 2025, Volume and Issue: unknown

Published: April 6, 2025

Language: Английский

Citations

0
Mechanical and Covalent Tailoring of Copper Catenanes for Selective Aqueous Nitrate-to-Ammonia Electrocatalysis DOI Creative Commons
Yulin Deng, Xiaoyong Mo, Samuel Kin‐Man Lai

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Electrocatalytic nitrate reduction reaction (NO3RR) for the selective generation of ammonia (NH3) enables removal deleterious pollutants while simultaneously upcycling them into a value-added fertilizer. The development nonprecious metal-derived catalysts such as those featuring copper (Cu) earth-abundant alternatives state-of-the-art precious metal is urgent need yet suffering from activity-selectivity-durability trilemma. Rational design molecular Cu complexes with well-defined coordination structures permitting systematic structure-activity relationship (SAR) investigations key to addressing challenge. Here, series Cu(I) [2]catenane ligands are developed NO3RR electrocatalysts first time. By engineering multiple cationic ammoniums on catenane backbone, acceptance anionic substrate well release ammonium product promoted, thereby facilitating higher Faradaic efficiency and selectivity toward via an 8e- pathway. Of note, mutual Coulombic repulsion between multiply charged overcome by mechanical interlocking that catalyst integrity can be maintained under practical conditions. This report highlights promise employing mechanically interlocked platform customizing redox processes involving proton-coupled electron transfer steps.

Language: Английский

Citations

0
When Electrocatalytic Nitrate Reduction Meets Copper-based Atomic Site Catalysts DOI
Xiaoqian Liu,

Tianyi Xiang,

Yuntao Liang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

This manuscript comprehensively reviews the recent advancements in Cu-based atomic site catalysts NO 3 RR, following a sequential order with six sections: Introduction, Mechanism, SACs, SAAs, DACs, and Perspectives.

Language: Английский

Citations

3
Enhancing Efficiency of Nitrate Reduction to Ammonia by Fe and Co Nanoparticle-Based Bimetallic Electrocatalyst DOI Open Access
Irina Kuznetsova, Olga Lebedeva, Dmitry Kultin

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(13), P. 7089 - 7089

Published: June 28, 2024

The green and sustainable electrocatalytic conversion of nitrogen-containing compounds to ammonia is currently in high demand order replace the eco-unfriendly Haber-Bosch process. Model catalysts for nitrate reduction reaction were obtained by electrodeposition metal Co, Fe, bimetallic Fe/Co nanoparticles from aqueous solutions onto a graphite substrate. samples characterized following methods: SEM, XRD, XPS, UV-vis spectroscopy, cyclic (and linear) voltammetry, chronoamperometry, electrochemical impedance spectroscopy. In addition, determination electrochemically active surface was also performed all electrocatalysts. best electrocatalyst sample containing Fe-nanoparticles on layer Co-nanoparticles, which showed Faradaic efficiency 58.2% (E = -0.785 V vs. RHE) at an yield rate 14.6 μmol h-1 cm-2 (at ambient condition). An opinion expressed elucidate mechanism coordinated action electrocatalyst. This work can serve primarily as starting point future investigations reactions using model proposed type.

Language: Английский

Citations

2
CuO/Mn2O3 heterojunction for efficient electrochemical nitrate reduction to ammonia DOI

Xuetao Cheng,

Huilin Zhao,

Chao Fan

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(24), P. 10804 - 10808

Published: Jan. 1, 2024

A heterojunction catalyst CuO/Mn 2 O 3 constructed by CuO and Mn with a unique spindle-like morphology is successfully fabricated, which demonstrates excellent NO RR performance.

Language: Английский

Citations

0