Enrichment of Cu Ions on Fe3O4 Surface to Promote NOx− Adsorption for Efficient Ammonia Production DOI Creative Commons

Fangchao Lou,

Longbing Zuo,

J. Guo

et al.

Small Structures, Journal Year: 2025, Volume and Issue: unknown

Published: May 29, 2025

The electrocatalytic nitrate reduction reaction (eNO 3 −RR) represents a promising approach for the sustainable production of ammonia and alleviation environmental pollution. doping metal oxides with other atoms is capable regulating physicochemical properties catalysts electrochemical applications. Nevertheless, no report in current literature has addressed effect position heteroatom on eNO −RR. In this study, positions copper ions are modulated to investigate their interfacial interactions, objective enhancing performance When Cu confined within lattice, it regulated electronic structure Fe O 4 , inducing an upward shift d ‐band centre adjusting strength adsorption NO −. Conversely, anchored surface exerted little influence structure, surface‐adsorbed served as dynamically active site relatively low coordination number, resulting strong −, which could effectively activate reactants. This work offers novel guideline design electrocatalysts

Language: Английский

Defect-rich carbon nanosheets derived from p(C3O2)x for electromagnetic wave absorption applications DOI

Daohu Sheng,

Zhuoran Song,

Siyao Cheng

et al.

Carbon, Journal Year: 2024, Volume and Issue: unknown, P. 119637 - 119637

Published: Sept. 1, 2024

Language: Английский

Citations

22
Charge-redistribution in bimetallic oxides buried in microporous curled carbon for efficient nitrate electroreduction to ammonia DOI

Lituo Liu,

Hongliang Dong, Sumei Huang

et al.

Science China Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Language: Английский

Citations

3
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

17
Co-engineering of Fe-Mn nanocluster with porous carbon for enhanced electrocatalytic ammonia synthesis DOI
Youqing Wang, Lang Zhang, Caiyun Wang

et al.

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Here, we developed iron–manganese nanocluster oxide-loaded nitrogen/oxygen-doped porous carbon towards effective NO 3 RR and Zn–nitrate batteries.

Language: Английский

Citations

2
Single Atom Embedding Enhanced Macroscopic Polarization in Carbon Nitride Nanosheets for pH-Universal Piezo-Photocatalytic Nitrate Reduction over a Wide Concentration Range DOI
Jinzhou Liu, Lujie Jin,

Zhongqin Dai

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 4025 - 4038

Published: Feb. 20, 2025

Language: Английский

Citations

2
A comparison of the corrosion inhibition performance in sulfamic acid medium between refluxed and ultrasonic extracts of rapeseed meal DOI

Simei Yang,

Shuduan Deng,

Qing Qu

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 688, P. 714 - 735

Published: Feb. 27, 2025

Language: Английский

Citations

2
Subnanometric Nickel Phosphide Heteroclusters with Highly Active Niδ+–Pδ− Pairs for Nitrate Reduction toward Ammonia DOI
Qi Hu, Chunyan Shang, Xinbao Chen

et al.

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

Published: March 26, 2025

The development of efficient electrocatalysts for the neutral nitrate reduction reaction (NO3–RR) toward ammonia (NH3) is essential to address environmental issues caused by NO3– but remains considerably challenging owing sluggish kinetics NO3–RR in media. Herein, we report subnanometric heteroclusters with strongly coupled nickel–phosphorus (Ni–P) dual-active sites as boost NO3–RR. Experimental and theoretical results reveal that feature Ni–P promotes electron transfer from Ni P, generating Niδ+–Pδ− active pairs, which Niδ+ species are highly Pδ− tunes interfacial water hydrogen bonding network promote dissociation step accelerate proton during Consequently, NO3–RR, exhibit a large NH3 yield rate 0.61 mmol h–1 cm–2 at −0.8 V versus reversible electrode, 2.8- 3.3-fold larger than those on nanoparticles clusters, respectively, generated exists NH4+ electrolytes. This study offers an approach boosting electrocatalytic reactions multiple intermediates designing sites.

Language: Английский

Citations

2
Multivariate covalent organic frameworks with tailored electrostatic potential promote nitrate electroreduction to ammonia in acid DOI Creative Commons

Qiyang Cheng,

Sisi Liu, Yanzheng He

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: April 19, 2025

The direct synthesis of ammonia from nitrate (NO3-) reduction in acid is a promising approach for industrialization. However, the difficulty arises intense competition with inevitable hydrogen evolution reaction, which favoured due to overwhelming protons (H+). Here, we systematically explore and rationally optimize microenvironment using multivariate covalent organic frameworks (COFs) as catalyst adlayers promote nitrate-to-ammonia conversion acid. With application tailored positive electrostatic potential generated over COFs, both mass transfer NO3- H+ are regulated via appropriate interactions, thus realizing priority NO3RR respect HER or NO3--to-NO2-. As result, an NH3 yield rate 11.01 mmol h-1 mg-1 corresponding Faradaic efficiency 91.0% attained, solid NH4Cl high purity 96.2% directly collected acid; therefore, this method provides practical economically valorising wastewater into valuable ammonia.

Language: Английский

Citations

1
Transition Metal‐Gallium Intermetallic Compounds with Tailored Active Site Configurations for Electrochemical Ammonia Synthesis DOI Creative Commons

Huaifang Zhang,

Chaoqun Ma,

Yichi Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(49)

Published: Sept. 4, 2024

Abstract Gallium (Ga) with a low melting point can serve as unique metallic solvent in the synthesis of intermetallic compounds (IMCs). The negative formation enthalpy transition metal‐Ga IMCs endows them high catalytic stability. Meanwhile, their tunable crystal structures offer possibility to tailor configurations active sites meet requirements for specific applications. Herein, we present general method preparing range IMCs, including Co−Ga, Ni−Ga, Pt−Ga, Pd−Ga, and Rh−Ga IMCs. structurally ordered CoGa body‐centered cubic ( bcc ) structure are uniformly dispersed on nitrogen‐doped reduced graphene oxide substrate (O‐CoGa/NG) deliver outstanding nitrate reduction reaction (NO 3 RR) performance, making excellent catalysts construct highly efficient rechargeable Zn‐NO − battery. Operando studies theoretical simulations demonstrate that electron‐rich environments around Co atoms enhance adsorption strength *NO intermediate simultaneously suppress hydrogen, thus improving NO RR activity selectivity.

Language: Английский

Citations

7
Cu‐Ru Bicenter Synergistically Triggers Tandem Catalytic Effect for Electroreduction of Nitrate to Ammonium DOI Open Access

Liyang Lv,

Hao Tan,

Yuying Liu

et al.

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

Published: Jan. 10, 2025

Abstract The electrochemical transformation of nitrate (NO 3 − ) into ammonia (NH holds significant promise to addresses nitration contamination and offers a sustainable alternative the Haber–Bosch process. However, sluggish kinetics hinders its large‐scale application. Herein, Cu‐doped SrRuO synergetic tandem catalyst is designed synthesized, which demonstrates exceptional performance in converting NO NH . Specifically, this achieves maximum Faradaic efficiency 95.4% for production, along with high yield rate 7196 µg h −1 mg cat. A series detailed characterizations reveals that doped Cu ions modify local electronic environment Ru 4 d e g orbital , thereby facilitating highly efficient electron transfer processes. In situ delta X‐ray absorption near‐edge structure (ΔXANES), synchrotron radiation‐based Fourier transform infrared (SR‐FTIR) Raman spectroscopy identified * 2 generated on active sites subsequently hydrogenated sites. Combined theoretical studies, it confirmed significantly reduces energy barriers rate‐determining step ( NOH), enhancing synthesis. This work not only fundamental insights mechanisms cation substitution regulating perovskite catalysts, but also provides promising avenue electro‐synthesis ammonia.

Language: Английский

Citations

1