Cited by Built-in electric field and core-shell structure of the reconstructed sulfide heterojunction accelerated water splitting

Interface Engineering of Mo‐doped Ni₂P/Fe_xP‐V Multiheterostructure for Efficient Dual‐pH Hydrogen Evolution and Overall Water Splitting DOI

Xiaohu Xu,

Kaiwei Guo,

Jikai Sun

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(33)

Published: May 21, 2024

Abstract Developing highly effective transition metal‐based bifunctional electrocatalysts remains a tremendously challenging task for large‐scale overall water splitting. Herein, multiheterostructured Mo‐doped Ni 2 P/Fe x P electrocatalyst on NiFe foam with vacancy (denoted as Mo─Ni P‐V/NFF) is developed to serve an efficient dual‐pH electrocatalyst. Due the synergistic effect of multiple strategies (heteroatom doping, heterointerface, and vacancy), P‐V/NFF possesses remarkable hydrogen evolution reaction (HER) catalytic activity in alkaline/acidic excellent oxygen (OER) alkaline media, along encouraging durability. The mechanisms improved electrocatalytic combining multicharacterizations density functional theory (DFT) calculations are elucidated. Specifically, X‐ray absorption fine structure experimental analysis confirms that Mo doping can optimize electronic In situ Raman spectroscopy demonstrates evolved oxyhydroxides real active substances OER. DFT reveal conductivity as‐prepared samples be enhanced through strategy synergy. Moreover, HER process, not only reduce binding energy near zero but also enhance H O dissociation *OH desorption. OER verify interface engineering adsorption rate‐determining step, achieving lowest theoretical overpotential.

Language: Английский

Citations

Unveiling the Role of Surface Self‐Reconstruction of Metal Chalcogenides on Electrocatalytic Oxygen Evolution Reaction DOI

Weiwei Bao,

Jiangying Liu, Taotao Ai

et al.

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

Published: Sept. 10, 2024

Abstract Transition metal chalcogenides are an important class of electrocatalysts with broad application prospects in alkaline oxygen evolution reactions. Many researchers focusing on the situ conversion cations catalysts, but have rarely considered contribution oxidation, leaching, and re‐absorption to catalytic activity. Herein, multiple characterization approaches used monitor mechanism origin CoTe@CoS‐electrocatalyzed reaction (OER) The research results reveal that electro‐oxidative dissolution Te S electrode surface forms TeO 3 2− SO , which adsorbed surface. Moreover, species will further transform into 4 . As expected, extra addition mixed tellurite sulfate ions Co (OH) 2 electrolyte produces a synergistic effect can significantly boost OER Selenites analogous effect, indicating adsorption chalcogenates has universal improving performance. findings this work provide unique insights materials enhancing activity during processes.

Language: Английский

Citations

Manipulating polarization attenuation in NbS2–NiS2 nanoflowers through homogeneous heterophase interface engineering toward microwave absorption with shifted frequency bands DOI

Yiru Fu,

Yuping Wang,

Junye Cheng

et al.

Nano Materials Science, Journal Year: 2024, Volume and Issue: unknown

Published: July 1, 2024

Homogeneous heterogeneous (heterophase) interfaces regulated with low energy barriers have a fast response to applied electric fields and could provide unique interfacial polarization, which facilitate the transport of electrons across substrate. Such regulation on is effective in modulating electromagnetic wave absorbing materials. Herein, we construct NbS2–NiS2 heterostructures NiS2 nanoparticles uniformly grown NbS2 hollow nanospheres, such particular structure enhances polarization. The strong electron transfer at interface promotes throughout material, results less scattering, conduct ion loss dielectric polarization relaxation, improves loss, good impedance matching material. Consequently, band may be successful tuned. By regulating amount NiS2, finely alternated so that overall wave-absorbing performance shifted lower frequencies. With content 15 wt% an absorber thickness 1.84 mm, minimum reflection 14.56 GHz −53.1 dB, absorption bandwidth 5.04 GHz; more importantly, different bands −20 dB, microwave rate reaches 99% when about 1.5–4.5 mm. This work demonstrates construction homogeneous improving properties, providing guideline for synthesis highly efficient

Language: Английский

Citations

Tuning d–p Orbital Hybridization of NiMoO₄@Mo₁₅Se₁₉/NiSe₂ Core‐Shell Nanomaterials via Asymmetric Coordination Interaction Enables the Water Oxidation Process DOI

Qiong Zhang, Wen Zhang, Jiawei Zhu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(20)

Published: April 3, 2024

Abstract The electrocatalytic performance of MoNi‐based nanomaterials undergo selenization has garnered significant interest due to their modified electronic structure, while still posses certain challenges for obtained bimetallic selenides. Here, a novel electrocatalyst NiMoO 4 @Mo 15 Se 19 /NiSe 2 core‐shell is constructed promote the desorption OOH * which can facilitate water oxidation process. nanoarrays show that “cores” are mainly nanorods “shells” selenides nanoflakes, super architectures expand more active sites and accelerate electron transfer. Moreover, hybridization interaction between Ni 3d, Mo 4d, 4p orbitals leads an asymmetric distribution electric clouds, decreases adsorption energy transformation oxygen‐containing species. Electrochemical data displays overpotentials only 195 mV, 220 224 mV oxygen evolution reaction (OER) in alkaline freshwater, simulated seawater, natural seawater. current density decay negligible after 100 h stability at about 1.46 V with three‐electrode system low cost unique this work provide constructive solution designing efficient stable OER catalysts future.

Language: Английский

Citations

Defects and morphology engineering for constructing VS-Ni3S2@VS-Cu2S nanotube heterojunction arrays toward efficient bifunctional electrocatalyst for overall water splitting DOI

Wenyuan Sun,

Alan Meng, Lei Wang

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 94, P. 29 - 40

Published: Feb. 28, 2024

Language: Английский

Citations

MXene-Based Hierarchical Electron Coupling Engineering of F-Doped NiFe LDH/MOF-74 Electrocatalysts for Efficient Overall Water Splitting DOI

Jibo Jiang,

Chang Xi,

Yun Zhao

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 2561 - 2575

Published: Jan. 28, 2025

Language: Английский

Citations

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

S-vacancies and iron-doped nickel sulfide nanosheets constructed by a solvothermal method as efficient catalysts for electrocatalytic oxygen evolution DOI

Zeyi Wang, Shuling Liu,

Yujie Ma

et al.

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

A universal method to fabricate high-valence transition metal-based HER electrocatalysts and direct Raman spectroscopic evidence for interfacial water regulation DOI

Zehua Wang,

Xueru Chang,

Renchao Deng

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 660, P. 157 - 165

Published: Jan. 14, 2024

Language: Английский

Citations

Constructing reconstruction-inhibited nickel selenide electrocatalysts via incorporating Ag single atom for durable and efficient water oxidation DOI

Fangqing Wang, Xueru Zhao, Ying Li

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 348, P. 123830 - 123830

Published: April 24, 2024

Language: Английский

Citations