Nickel‐Based Hollow Spheres with Optimized Interfacial Electronic Structures by Highly Dispersed MoN for Efficient Urea Electrolysis DOI Open Access

Yuying Fan,

Zhihui Li, Yue Liu

et al.

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

Published: Dec. 29, 2024

Abstract Ni‐Mo‐based catalysts that exhibit well‐synergized and readily accessible catalytic sites are ideal for achieving efficient electrocatalysis. Herein, the synthesis of hollow Ni spheres with a hierarchical nanosheet surface modified by highly dispersed MoN urea electrolysis is reported. This based on design Mo‐Ni precursors featuring array surface, achieved through phosphomolybdic acid (PMo 12 )‐mediated reconstruction Ni‐BTC spheres. The optimized MoN‐Ni catalyst can effectively drive both oxidation reaction (UOR) hydrogen evolution at low potentials 1.37 V 191 mV, respectively, current density 100 mA cm −2 . electrolytic cell utilizing these sustain voltage 1.53 operate continuously over 220 h. X‐ray photoelectron spectroscopy (XPS) functional theory (DFT) analyses demonstrate established built‐in electric field facilitates electron transfer from to Ni, optimizing d‐band center consequently reducing barrier UOR. In situ electrochemical impedance (EIS) in Fourier‐transform infrared indicate promotes formation high‐valent sites, which accelerates UOR eletrolysis more environmentally friendly “carbonate” pathway.

Language: Английский

Rationally designed CaTiO3/Mn0.5Cd0.5S/Ni3C S-scheme/Schottky integrated heterojunction for efficient photocatalytic H2 evolution DOI
Hua Lv, C.W. Zhou,

Qinhui Shen

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 365 - 376

Published: Aug. 12, 2024

Language: Английский

Citations

32
Reconstruction of Ni-based catalyst for electrocatalytic urea oxidation reaction DOI

Xuena Gao,

Jianguo Dong, Huimin Yang

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1012, P. 178477 - 178477

Published: Jan. 1, 2025

Language: Английский

Citations

2
Efficient urea removal with hydroperoxide production in bipolar membrane electrochemical cell using MoNiOOH nanoarray anode electrocatalyst DOI
Xin Li,

Shuyue Ma,

Lingli Tu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125158 - 125158

Published: Feb. 1, 2025

Language: Английский

Citations

1
Enhancing the dynamic structural evolution of NiOOH on nickel nitride surface for efficient 5-hydroxymethylfurfural oxidation DOI
Jianlong Zhang,

Jinlv Wei,

Zhixiang Zhai

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125331 - 125331

Published: April 1, 2025

Language: Английский

Citations

1
Insight into the High Activity of Nickel Phosphide Precatalysts for Urea Oxidation DOI
Fulin Yang, Xingyu Huang, Ruonan Li

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(45), P. 19436 - 19444

Published: Nov. 4, 2024

The quest for advanced Ni-based (pre)catalysts the urea oxidation reaction (UOR) has been significantly impeded by a lack of understanding regarding catalytic structures and mechanisms after surface reconstruction, particularly metalloid compounds like nickel phosphide. This study systematically investigates UOR performance Ni(OH)2, phosphate (Ni–Pi), Ni2P, shedding light on role electronic structure morphology in dictating activity. Through electrochemical experiments situ spectroscopic techniques, we demonstrate that superior activity Ni2P originates from its unique conductivity presence residual ions, which facilitate formation highly active, coordinatively unsaturated sites following reconstruction as well faster electron transport. A novel descriptor based reversibility Ni3+/Ni2+ redox couple is proposed to underscore importance NiOOH regeneration kinetics process. findings reveal rapid dynamics results minimal accumulation intermediates, indicative high efficiency. research not only elucidates metal-nonmetal but also offers strategic framework design efficient electrocatalysts sustainable energy applications.

Language: Английский

Citations

5
Progress on electrochemical and photoelectrochemical urea and ammonia conversion from urine for sustainable wastewater treatment DOI Creative Commons
Sophia Akkari, Carlos M. Sánchez‐Sánchez, Guillaume Hopsort

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 362, P. 124718 - 124718

Published: Oct. 20, 2024

Language: Английский

Citations

4
Strategies for Modulating Ni-based Layered Double Hydroxides for Boosting Urea Electrooxidation DOI
Chang‐Hyeon Ji, Jipeng Wang,

Sheng Feng

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179306 - 179306

Published: Feb. 1, 2025

Language: Английский

Citations

0
Pairing N‐Vacancy and Adjacent Ni‐Sites in the Local Microenvironment to Regulate the Urea Oxidation Reaction Pathway With Enhanced Kinetics DOI Creative Commons
C. S. Ji, Huimei Duan, Chuanhui Wang

et al.

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

Published: April 16, 2025

Abstract The urea oxidation reaction (UOR) is a promising approach for replacing the oxygen evolution in hydrogen production, offering lower energy consumption. However, kinetics of Ni‐based catalysts UOR are hindered by high formation potential NiOOH and its repeated transition with Ni(OH) 2 . In this study, local microenvironment featuring electron‐deficient N‐vacancies (V N ) paired adjacent electron‐rich Ni‐sites on Ni 3 (Ni N‐V to enhance constructed. significantly reduce barrier promote conversion NiOOH. Meanwhile, V sites induce low charge transfer resistance N, facilitating efficient electron boosting performance while ensuring stability active phase. adsorption atom at site, favoring pathway toward “NCO⁻” without requiring complete dissociation. This alleviates NiOOH/Ni(OH) cycle, lowers resistance, improves kinetics. demonstrates excellent activity (low 1.46 1000 mA cm −2 industrial prospects (integrating into an anion exchange membrane flow electrolyzer 20% Pt/C, producing 600 1.84 V), highlighting practical applications.

Language: Английский

Citations

0
Recent Advances in Urea Electrocatalysis: Applications, Materials and Mechanisms† DOI
Chu Zhang, Shi‐Jie Chen, Liwei Guo

et al.

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 26, 2024

Comprehensive Summary Urea plays a vital role in human society, which has various applications organic synthesis, medicine, materials chemistry, and other fields. Conventional industrial urea production process is energy−intensive environmentally damaging. Recently, electrosynthesis offers greener alternative to efficient synthesis involving coupling CO 2 nitrogen sources at ambient conditions, affords an achievable way for diminishing the energy consumption emissions. Additionally, electrolysis, namely electrocatalytic oxidation reaction (UOR), another emerging approach very recently. When with hydrogen evolution reaction, UOR route potentially utilizes 93% less than water electrolysis. Although there have been many individual reviews discussing electrooxidation, critical need comprehensive review on electrocatalysis. The will serve as valuable reference design of advanced electrocatalysts enhance electrochemical electrocatalysis performance. In review, we present thorough two aspects: reaction. We summarize turn recently reported catalyst materials, multiple catalysis mechanisms principles Finally, major challenges opportunities are also proposed inspire further development technology. Key Scientists For electrosynthesis, Furuya et al. firstly investigated coreduction NO 3 − /NO using gas‐diffusion electrodes 1995. Then, Wang effectively achieved C—N bond formation PdCu alloy nanoparticles 2020. Shortly, Yan Yu *CO from *NO intermediates early stage In(OH) electrocatalyst 2021, employed defect engineering strategy facilitate NH protonation 2022. Amal al . Investigated that Cu‐N‐C coordination both RR RR. After that, Zhang's group developed In‐based artificial frustrated Lewis pairs urea, they offered systematic screening 2023. And sargent increased selectivity hybrid catalyst. Stevenson effect Sr substitution toward provided insights into electrooxidation β‐Ni(OH) electrode Qiao elucidated two‐stage pathway 2021.

Language: Английский

Citations

3
Highly Exposed Low-Valence Ni Sites of NiO(111) for Efficient Electrocatalytic Biomass Upgrading DOI

Ziheng Song,

Tianyang Shen,

Zhaohui Wu

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: 15(3), P. 1727 - 1738

Published: Jan. 16, 2025

The catalytic activity of transition metal oxides (TMOs) is significantly influenced by the exposure different crystal facets due to distinct arrangements surface atoms. However, detailed structural change TMOs with a specific exposed facet and corresponding structure–activity relationship remains ambiguous. In this work, we successfully fabricated NiO catalysts exposures, including (111), (100), (110). When applied for structure-sensitive electrocatalytic 5-hydroxymethylfurfural oxidation reaction (HMFOR), as-prepared NiO(111) exhibited low onset potential 1.23 V achieved current density 10 mA cm–2 at 1.39 V. Moreover, it realized over 99% HMF conversion approximately selectivity FDCA. Detailed in situ experiments demonstrated that electrooxidation on requires simultaneous fulfillment hydroxyl adsorption strong affinity HMF. Further, characterizations DFT calculations confirm numerous continuous low-valence Ni sites can realize both lowest energy −1.78 eV sufficient d–π interactions. Additionally, unique atomic arrangement most pronounced charge transfer superior charge-transfer capability compared (100) This work provides insights into fine structure evolution process offers guidance designing active efficient biomass conversion.

Language: Английский

Citations

0