Hollow Square Ni-Doped Copper Oxide Catalyst Boosting Electrocatalytic Nitrate Reduction DOI
Yi Li, Jinshan Wei,

Hexing Lin

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: 15(3), P. 1672 - 1683

Published: Jan. 16, 2025

The electrochemical nitrate reduction reaction to ammonia (NRA) is gaining increasing attention as an eco-friendly approach convert harmful pollutants into high-value product ammonia. NRA involves two critical rate-determining steps: hydrogenation of the *NO and *NOH intermediates. composite Ni Cu has been demonstrated exhibit synergistic catalytic effects; however, research on combination CuO remains limited. Herein, advanced Ni-doped copper oxide catalyst with a hollow square morphology (Ni–CuO) reported Faradaic efficiency 95.26% at −0.8 V vs RHE high yield rate 0.94 mmol h–1 cm–2, demonstrating selectivity stability. Complementary analyses that active hydrogen generated sites facilitates *NOx adsorbed sites. Theoretical computations further confirm thermodynamic viability this bimetallic mechanism. Furthermore, Al–NO3– battery open-circuit voltage was constructed by using Ni–CuO cathode. This work presents synergistically modulated for complex processes introduces highly efficient capable simultaneous NH3 synthesis electrical energy conversion, underscoring its potential in catalysis development chemical industries.

Language: Английский

Constructing molecule-metal relay catalysis over heterophase metallene for high-performance rechargeable zinc-nitrate/ethanol batteries DOI Creative Commons
Jingwen Zhou, Yuecheng Xiong, Mingzi Sun

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(50)

Published: Dec. 8, 2023

Zinc-nitrate batteries can integrate energy supply, ammonia electrosynthesis, and sewage disposal into one electrochemical device. However, current zinc-nitrate still severely suffer from the limited density poor rechargeability. Here, we report synthesis of tetraphenylporphyrin (tpp)-modified heterophase (amorphous/crystalline) rhodium-copper alloy metallenes (RhCu M-tpp). Using RhCu M-tpp as a bifunctional catalyst for nitrate reduction reaction (NO

Language: Английский

Citations

43
Strategies and applications of electrocatalytic nitrate reduction towards ammonia DOI
Huijie Zhang,

K. Fang,

Jian Yang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 506, P. 215723 - 215723

Published: Feb. 26, 2024

Language: Английский

Citations

42
Regulating the d-Band Center of Metal–Organic Frameworks for Efficient Nitrate Reduction Reaction and Zinc-Nitrate Battery DOI

Yuanhui Yao,

Xiaofei Wei,

Haiqiao Zhou

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(21), P. 16205 - 16213

Published: Oct. 18, 2024

The electrochemical reduction of nitrate ions to valuable ammonia enables the recovery pollutants from industrial wastewater, thereby synchronously balancing nitrogen cycle and achieving NH3 production. However, currently reported electrocatalysts still suffer low yield rate, Faradaic inefficiency, partial current density. Herein, a strategy based on regulation d-band center by Ru doping is presented boost Theoretical calculations unravel that dopant in Ni metal–organic framework shifts neighboring sites upward, optimizing adsorption strength N-intermediates, resulting greatly enhanced reaction performance. synthesized Ru-doped rod array electrode delivers rate 1.31 mmol h–1 cm–2 efficiency 91.5% at −0.6 V versus reversible hydrogen electrode, as well good cycling stability. In view multielectron transfer electrocatalytic activity, Zn-NO3– battery assembled this Zn anode, which high open-circuit voltage 1.421 maximum output power density 4.99 mW cm–2, demonstrating potential application value.

Language: Английский

Citations

41
Molten salts etching strategy construct alloy/MXene heterostructures for efficient ammonia synthesis and energy supply via Zn-nitrite battery DOI

Zhijie Cui,

Pengwei Zhao,

Honghai Wang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 348, P. 123862 - 123862

Published: April 24, 2024

Language: Английский

Citations

37
Synergistic Effect of Ni/Ni(OH)2 Core‐Shell Catalyst Boosts Tandem Nitrate Reduction for Ampere‐Level Ammonia Production DOI

Xinyue Shi,

Minghui Xie,

Kaiwen Yang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(27)

Published: April 23, 2024

Electrocatalytic reduction of nitrate to ammonia provides a green alternate the Haber-Bosch method, yet it suffers from sluggish kinetics and low yield rate. The follows tandem reaction nitrite subsequent hydrogenation generate ammonia, Faraday efficiency (FE) is limited by competitive hydrogen evolution reaction. Herein, we design heterostructure catalyst remedy above issues, which consists Ni nanosphere core Ni(OH)

Language: Английский

Citations

34
Rethinking nitrate reduction: redirecting electrochemical efforts from ammonia to nitrogen for realistic environmental impacts DOI Creative Commons
Hao Huang,

Karthik Peramaiah,

Kuo‐Wei Huang

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(8), P. 2682 - 2685

Published: Jan. 1, 2024

Electrochemical NO 3 − reduction to NH is insignificant for practical applications. Instead, contaminants should be converted into N 2 , recycled chemicals, or coupled with CO produce value-added fertilizers if applicable.

Language: Английский

Citations

28
Modulating the Electrolyte Microenvironment in Electrical Double Layer for Boosting Electrocatalytic Nitrate Reduction to Ammonia DOI

Weidong Wen,

Shidong Fang,

Yitong Zhou

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 29, 2024

Abstract Electrochemical nitrate reduction reaction (NO 3 RR) is a promising approach to achieve remediation of nitrate‐polluted wastewater and sustainable production ammonia. However, it still restricted by the low activity, selectivity Faraday efficiency for ammonia synthesis. Herein, we propose an effective strategy modulate electrolyte microenvironment in electrical double layer (EDL) mediating alkali metal cations enhance NO RR performance. Taking bulk Cu as model catalyst, experimental study reveals that − ‐to‐NH performance different electrolytes follows trend Li + <Cs <Na <K . Theoretical studies illustrate proton transport rate activity rate‐determining step 2 ) increase order The cation effects are also general two typical nanostructured catalysts including copper/cuprous oxide nickel phosphides, achieving near‐100 % Faradaic over 99 conversion NH Furthermore, demonstrate can be converted high‐purity 4 Cl catalyst K ‐containing electrolyte.

Language: Английский

Citations

28
Cu-based catalysts for electrocatalytic nitrate reduction to ammonia: fundamentals and recent advances DOI Creative Commons
Kouer Zhang, Yun Liu, Zhefei Pan

et al.

EES Catalysis, Journal Year: 2024, Volume and Issue: 2(3), P. 727 - 752

Published: Jan. 1, 2024

This review provides an overview of Cu-based catalysts for electrocatalytic nitrate reduction to ammonia. It encompasses materials, reaction mechanisms, analysis methods and insights into the practical applications economic prospects.

Language: Английский

Citations

25
Electrocatalytic Conversion of Nitrate Into Ammonia Through Heterogeneous Catalysis of NiMoO4 and Cu/Cu2O DOI

Changzheng Lin,

Xin Chen, Ling Wang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(36)

Published: April 5, 2024

Abstract Facilitating equilibrium in the nitrogen cycle, electrochemical nitrate reduction (NitRR) to ammonia stands as a carbon‐free method for synthesis. Copper‐based catalysts, renowned NitRR, face hurdle supplying sufficient hydrogen radicals (*H) efficient hydrogenation of NitRR intermediates. Addressing this, NiMoO 4 is leveraged an excellent *H donor, synergistically coupling it with copper‐based catalyst. The work introduces high‐performance /CuO nanowire (NW)/Copper foam (CF) catalyst achieving remarkable Faraday efficiency (FE) 98.8% and yield 0.8221 mmol cm −2 h −1 . Operating at −0.2 V versus reversible electrode (vs RHE) H‐type electrolytic cell, demonstrates exceptional stability over 20 h. Additionally, air stripping process enables collection NH Cl products, offering practical avenue converting waste nitrates into valuable products. In‐depth situ electrochemistry density‐functional theory (DFT) calculations affirm transformation CuO Cu/Cu 2 O during electrocatalytic process. catalyzes conversion nitrite, while , serving facilitates deoxidation other N intermediates on surface, effectively driving ammonia.

Language: Английский

Citations

21
The synergistic catalysis effect on electrochemical nitrate reduction at the dual-function active sites of the heterostructure DOI
Yuxiang Li,

Zhenjie Lu,

Lei Zheng

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(13), P. 4582 - 4593

Published: Jan. 1, 2024

The synergistic catalysis effect based on CoP and Cu 3 P dual-function active sites is proposed to understand the mechanism of hydrogen (*H) adsorbed intermediates (*NO x ) during water-splitting nitrate reduction.

Language: Английский

Citations

21