Nano‐Single‐Atom Heterointerface Engineering for pH‐Universal Electrochemical Nitrate Reduction to Ammonia DOI
Jian Song,

Shengjie Qian,

Wenqiang Yang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 5, 2024

Abstract Nano‐single‐atom‐catalysts have the potential to combine respective advantages of both nano‐catalysts and single‐atom‐catalysts thus exhibit enhanced performance. Generally, separation active sites in space limits interaction between single atoms nanoparticles. Heterointerface engineering has break this limitation. Regretfully, studies on interface effect nanoparticles are rarely reported. Herein, an unprecedented nano‐single‐atom heterointerface composed Fe single‐atoms carbon‐shell‐coated FeP (Fe SAC/FeP@C) is demonstrated as efficient electrocatalyst for nitrate reduction process from alkaline acidic. Compared with typical nano‐single‐atom‐catalysts SAC/FePO 4 ) SAC), constructed SAC/FeP@C heterostructure exhibits dramatically nitrate‐to‐ammonia Especially acidic media, maxmium Faradaic efficiency ammonia (NH 3 can reach 95.6 ± 0.5%, a maximum NH yield 36.2 3.1 mg h −1 cat (pH = 1.2), which considerably higher than previously Density functional theory calculations situ spectroscopic investigations indicate that unique charge redistribution at interface, together optimized electronic structure single‐atoms, strengthens intermediate adsorption catalytic activity. This work provides feasible strategy designing heterointerfaces, well valuable insights into conversion under environmentally relevant wastewater conditions.

Language: Английский

The Loss of Interfacial Water-Adsorbate Hydrogen Bond Connectivity Position Surface-Active Hydrogen as a Crucial Intermediate to Enhance Nitrate Reduction Reaction DOI

Shisheng Zheng,

X. Yang,

Zhong-Zhang Shi

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 20, 2024

The electrochemical nitrate reduction reaction (NO

Language: Английский

Citations

9
Electrochemical nitrate reduction to ammonia using copper-based electrocatalysts DOI Creative Commons
Rong Zhang, Shaoce Zhang, Huilin Cui

et al.

Next Energy, Journal Year: 2024, Volume and Issue: 4, P. 100125 - 100125

Published: April 25, 2024

Ammonia (NH3) is an ideal green fuel with high energy density and plays indispensable role in fertilizer production. Electrochemical reduction of nitrate (NO3–), a toxic pollutant groundwater, has shown promising as viable approach to converting waste into valuable NH3 under ambient conditions, offering alternative the energy-intensive Haber-Bosch process. Due their efficiency, copper (Cu)-based materials have great potential electrocatalysts for NO3– reaction (NO3–RR) NH3. In this review, we provide comprehensive summary fundamental principles underlying over Cu-based discuss various strategies enhance performance reduction, including facets, morphologies, size, surface functionalization, compositional engineering, defect engineering. We also delve relationship between electrocatalytic structure characteristics thoroughly examine mechanism involved NO3–RR. Furthermore, highlight existing challenges prospective paths forward area study. This review offers insights guidance strategic design optimization NO3–RR applications.

Language: Английский

Citations

8
Phase‐Engineered Bi‐RuO2 Single‐Atom Alloy Oxide Boosting Oxygen Evolution Electrocatalysis in Proton Exchange Membrane Water Electrolyzer DOI Open Access
Zhichao Yang, Yutian Ding, Wen Chen

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Abstract Engineering nanomaterials at single‐atomic sites can enable unprecedented catalytic properties for broad applications, yet it remains challenging to do so on RuO 2 ‐based electrocatalysts proton exchange membrane water electrolyzer (PEMWE). Herein, the rational design and construction of Bi‐RuO single‐atom alloy oxide (SAAO) are presented boost acidic oxygen evolution reaction (OER), via phase engineering a novel hexagonal close packed ( hcp ) RuBi alloy. This SAAO electrocatalyst exhibits low overpotential 192 mV superb stability over 650 h 10 mA cm −2 , enabling practical PEMWE that needs only 1.59 V reach 1.0 A under industrial conditions. Operando differential electrochemical mass spectroscopy analysis, coupled with density functional theory studies, confirmed adsorbate‐evolving mechanism incorporation Bi 1 improves activity by electronic optimization hindering surface Ru demetallation. work not introduces new strategy fabricate high‐performance atomic‐level, but also demonstrates their potential use in electrolyzers.

Language: Английский

Citations

1
Mechanism of Key Intermediates Regulation in Electrocatalytic Nitrate-to-Ammonia Conversion Driven by Polarized Electric Field DOI

Xiaochuan Tang,

Wei Liu,

Chenjun Lei

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110708 - 110708

Published: Jan. 1, 2025

Language: Английский

Citations

1
Pulsed Photoelectrocatalysis-Mediated Reactive Chlorine Spillover Promotes Nanoconfined Cascade Denitrification DOI

Wenxi Qiu,

Pengfei Wang, Zhaoyu Jin

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125102 - 125102

Published: Jan. 1, 2025

Language: Английский

Citations

1
External field-assisted catalysis DOI Creative Commons
Linbo Jiang,

Lintao Jiang,

Xu Luo

et al.

eScience, Journal Year: 2025, Volume and Issue: unknown, P. 100398 - 100398

Published: March 1, 2025

Language: Английский

Citations

1
Recent Progress in Energy-Saving Electrocatalytic Hydrogen Production via Regulating Anodic Oxidation Reaction DOI
Taotao Gao,

Qi An,

Xiangmin Tang

et al.

Physical Chemistry Chemical Physics, Journal Year: 2024, Volume and Issue: 26(29), P. 19606 - 19624

Published: Jan. 1, 2024

This review focuses on the recent progress in energy-saving electrocatalytic hydrogen production via coupling HER with thermodynamically favorable anodic oxidation reactions.

Language: Английский

Citations

8
Copper–Nickel Oxide Nanosheets with Atomic Thickness for High‐Efficiency Sulfur Ion Electrooxidation Assisted Nitrate Electroreduction to Ammonia DOI
Xiaohui Wang,

Qing‐Ling Hong,

Liyang Shao

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: Aug. 16, 2024

Abstract The nitrate electroreduction reaction (NO 3 RR) offers an eco‐friendly alternative to the Haber–Bosch technology for ammonia (NH ) synthesis. However, complex process and diverse products make efficient NH synthesis challenging. Therefore, rational design preparation of highly electrocatalysts are crucial NO RR. Herein, ultrathin copper‐nickel oxide (Cu‐NiO) nanosheets (Cu‐NiO UTNSs) synthesized via cyanogel‐NaBH 4 hydrolysis‐reduction method, which applied cathodic RR ‐assisted with anodic sulfur ion (S 2− oxidation (SOR) in electrolyzer. nanosheet structure, interaction between NiO Cu, formation oxygen vacancy contribute generating rich active sites, regulating electronic improving substance adsorption. Thus, Cu‐NiO UTNSs exhibit excellent electrocatalytic performance SOR. As a bifunctional UTNSs||Cu‐NiO electrolyzer, it can reach 10 mA cm −1 at only 0.1 V − ‐to‐NH conversion cathode S ‐to‐S 8 anode. This work provides promising approach producing value‐added chemicals low electrolysis voltage strategy pollutant treatment.

Language: Английский

Citations

8
Electrocatalysis for sustainable nitrogen management: materials innovation for sensing, removal and upcycling technologies DOI

Mei Yi,

Hongmei Li, Minghao Xie

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Language: Английский

Citations

7
Heteroatom Immobilization Engineering toward High-Performance Metal Anodes DOI
Jianan Gu, Yongzheng Zhang, Yu Shi

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 11, 2024

Heteroatom immobilization engineering (HAIE) is becoming a forefront approach in materials science and engineering, focusing on the precise control manipulation of atomic-level interactions within heterogeneous systems. HAIE has emerged as an efficient strategy to fabricate single-atom sites for enhancing performance metal-based batteries. Despite significant progress achieved through metal anodes batteries, several critical challenges such dendrites, side reactions, sluggish reaction kinetics are still present. In this review, we delve into fundamental principles underlying heteroatom anodes, aiming elucidate its role electrochemical We systematically investigate how facilitates uniform nucleation inhibits reactions at anode-electrolyte interface, promoting desolvation ions accelerating Finally, discuss various strategies implementing electrode materials, high-temperature pyrolysis, vacancy reduction, molten-salt etching anchoring. These include selecting appropriate heteroatoms, optimizing methods, constructing material architectures. They can be utilized further refine enhance capabilities facilitate widespread application next-generation battery technologies.

Language: Английский

Citations

7