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

Fangchao Lou,

Longbing Zuo,

J. Guo

и другие.

Small Structures, Год журнала: 2025, Номер unknown

Опубликована: Май 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

Язык: Английский

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

Daohu Sheng,

Zhuoran Song,

Siyao Cheng

и другие.

Carbon, Год журнала: 2024, Номер unknown, С. 119637 - 119637

Опубликована: Сен. 1, 2024

Язык: Английский

Процитировано

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

Lituo Liu,

Hongliang Dong, Sumei Huang

и другие.

Science China Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Язык: Английский

Процитировано

3
Subnanometric Nickel Phosphide Heteroclusters with Highly Active Niδ+–Pδ− Pairs for Nitrate Reduction toward Ammonia DOI
Qi Hu, Chunyan Shang, Xinbao Chen

и другие.

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Март 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.

Язык: Английский

Процитировано

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

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер unknown

Опубликована: Сен. 20, 2024

The electrochemical nitrate reduction reaction (NO

Язык: Английский

Процитировано

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

и другие.

Chemical Communications, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

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

Язык: Английский

Процитировано

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

и другие.

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 4025 - 4038

Опубликована: Фев. 20, 2025

Язык: Английский

Процитировано

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

и другие.

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 688, С. 714 - 735

Опубликована: Фев. 27, 2025

Язык: Английский

Процитировано

2
Transition Metal‐Gallium Intermetallic Compounds with Tailored Active Site Configurations for Electrochemical Ammonia Synthesis DOI Creative Commons

Huaifang Zhang,

Chaoqun Ma,

Yichi Wang

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(49)

Опубликована: Сен. 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.

Язык: Английский

Процитировано

8
Cu‐Ru Bicenter Synergistically Triggers Tandem Catalytic Effect for Electroreduction of Nitrate to Ammonium DOI Open Access

Liyang Lv,

Hao Tan,

Yuying Liu

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 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.

Язык: Английский

Процитировано

1
Ab Initio Study of a Tandem PdCu Catalyst Supported on Carbon Nitride Nanosheets for Nitrate-to-Ammonia Electrochemical Reduction DOI
Zhe Xue, Rui Tan,

Jinzhong Tian

и другие.

ACS Applied Nano Materials, Год журнала: 2025, Номер 8(4), С. 1709 - 1717

Опубликована: Янв. 15, 2025

Electrochemical conversion of nitrate offers an efficient approach to mitigate pollution and ammonia synthesis but is still challenged by the slow kinetics selectivity issues active sites. Herein, performing density functional theory (DFT) calculations, we report a double-atom catalyst PdCu–C7N6 incorporating Pd Cu together embedded in C7N6 frameworks, which not only shows outstanding catalytic performance with low limiting potential 0.36 V, also can effectively inhibit competing hydrogen evolution reactions. The high NO3RR activity on well explained polarizable bond length as asymmetric charge distribution Pd–Cu dual This DFT work opens avenue for developing highly multicomponent electrocatalysts.

Язык: Английский

Процитировано

1