Constructing Neuron-like Structured NiS2/MOF Composites with Enhanced Regulation of Electron Transport and Active Sites for Oxygen Evolution DOI Creative Commons
Yanli Guo, Di Zhou, Yanyan Huang

et al.

Molecules, Journal Year: 2024, Volume and Issue: 30(1), P. 80 - 80

Published: Dec. 28, 2024

Constructing fast electron transfer pathways and abundant electro-active sites is an effective strategy to improve the oxygen evolution reaction (OER) performance of catalysts. Herein, structural engineering dual-phase were employed construct a NiS2 nanoparticle-encapsulated MOF configured with pseudo-neuronal structure (NiS2/MOF/HT). It was found that structure, constructed carbon nanohorn (CNH) nanotube (CNT), provided exposed active sites. Moreover, NiS2/MOF/HT composite obtained via partial vulcanization not only inherited but also prevented aggregation growth particles. NiS2/MOF composites provide various With combination promotion electronic enrichment (NiS2, MOF), showed excellent performance, whose overpotential at 25 mA cm−2 reduced by 19.5% compared MOF/HT.

Language: Английский

Triggered factors and structure-activity relationship in the dynamic reconstruction processing of MOF for the alkaline oxygen evolution reaction DOI
Qianglong Qi, Chengxu Zhang, Jue Hu

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216235 - 216235

Published: Oct. 1, 2024

Language: Английский

Citations

11
Tailoring Coordination Fields of Asymmetric MO5S1‐Type Metal–Organic Frameworks Catalysts for Accelerated Oxygen Evolution Reaction DOI

Tengjia Ni,

Xianbiao Hou,

Jian Zhou

et al.

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

Published: Sept. 27, 2024

Abstract Asymmetric coordination has emerged as a promising approach to enhance the oxygen evolution reaction (OER) activity, yet achieving controlled synthesis of asymmetric structures comprehensively understand structure‐activity relationship remains challenging. In this study, facile and effective symmetry‐breaking strategy is reported for tailoring MO 5 S 1 ‐type metal–organic frameworks (MOFs) catalyst, establishing correlation between sulfur (S)‐mediated electron rearrangement adsorption/desorption dynamics oxygen‐related intermediates in OER. Experimental theoretical calculations reveal that well‐designed structure can effectively lower d‐band center, optimizing adsorption behavior OH * significantly decreasing energy barrier rate‐determining step (OH → O ) with enhanced O–H bond cleavage process. The S‐NiFe‐MOF/CFP catalyst demonstrates remarkable OER performance an alkaline electrolyte environment. More importantly, self‐assembled anion exchange membrane water electrolysis cell showcases low voltage 1.84 V deliver current density A cm −2 , maintaining long‐term stability over 100 h. This study unveils precise employing S, highlighting critical role manipulating redistribution through promote catalytic activity develop advanced MOF‐based catalysts.

Language: Английский

Citations

4
Advancements in electron Rearrangement-Enhanced fenton-like catalysis of Metal-Organic Frameworks for water treatment applications DOI
Ran Zhao,

Xiaowen Yang,

Qian Liu

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132213 - 132213

Published: Feb. 1, 2025

Language: Английский

Citations

0
Interface Regulable NiFePBA/Fe2NiSe4 Heterostructure for Efficient Electrocatalytic Oxygen Evolution Reaction DOI

An Jiang,

Yaofeng Shi,

Feng Gao

et al.

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106379 - 106379

Published: April 1, 2025

Language: Английский

Citations

0
Accelerating the Transformation of Active β‐NiOOH on NiFe Layered Double Hydroxide via Cation–anion Collaborative Coordination for Alkaline Water Oxidation at High Current Densities DOI
Fa‐Nian Shi, Liyang Xiao,

Zhenglin Zhou

et al.

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

Published: April 7, 2025

Abstract The NiFe‐based layered double hydroxides (LDH) undergo surface reconstruction, generating metal hydroxyl oxides that act as active species during the alkaline oxygen evolution reaction (OER). However, sluggish reconstruction process and excessive oxidation at higher anodic potentials frustrate OER activity stability. Herein, a cation–anion collaborative coordination strategy is harnessed to build (Ni, Fe)─S─Zn structures in NiFe LDH on nickel foam (S‐NiFeZn LDH/NF), which lowers energy barrier aids forming highly β‐NiOOH process. Meanwhile, also optimize adsorption of oxygen‐containing intermediates, enhancing kinetics. As result, S‐NiFeZn LDH/NF achieves low overpotentials 201 mV 10 mA cm −2 293 500 1.0 m KOH. Moreover, cell assembled with anode commercial NiMo cathode demonstrates excellent overall water splitting activity, voltages 1.62 1.81 V KOH, exhibits ultralong‐term durability over h , even operating stably for 200 an electrolyzer under industrial conditions (30% KOH 80 °C).

Language: Английский

Citations

0
Precise modulation of electron spin states in metal-organic framework towards exceptional oxygen evolution reaction DOI Creative Commons
Minghua Huang,

Xianbiao Hou,

Tengjia Ni

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Abstract Spin configuration and coordination environment changes have emerged as promising strategies to boost the oxygen evolution reaction (OER) activity. However, achieving precise gradual regulation of both spin states elucidate structure-activity relationship remains a key priority is rarely reported. In this work, we successfully induce transition Fe sites from low state medium ultimately high by meticulously adjusting within NiFe-MOF, while Ni still keep state. Experimental theoretical calculations confirm polarization electrons migration Fe-t2g Fe-eg orbitals with reduced saturation, which optimizes orbital exchange interactions between ions facilitates adsorption intermediates. The NiFe-MOF-D3 unique NiO6-FeO4 geometric structure exhibits overpotential 328 mV@1 A cm-2 365 [email protected] in alkaline medium. Furthermore, assembled electrolyzer also presents remarkable activity (1.77 V@500 mA cm-2) lower cost ($ 0.94) than target U.S. Department Energy 2.00).

Language: Английский

Citations

0
Constructing Neuron-like Structured NiS2/MOF Composites with Enhanced Regulation of Electron Transport and Active Sites for Oxygen Evolution DOI Creative Commons
Yanli Guo, Di Zhou, Yanyan Huang

et al.

Molecules, Journal Year: 2024, Volume and Issue: 30(1), P. 80 - 80

Published: Dec. 28, 2024

Constructing fast electron transfer pathways and abundant electro-active sites is an effective strategy to improve the oxygen evolution reaction (OER) performance of catalysts. Herein, structural engineering dual-phase were employed construct a NiS2 nanoparticle-encapsulated MOF configured with pseudo-neuronal structure (NiS2/MOF/HT). It was found that structure, constructed carbon nanohorn (CNH) nanotube (CNT), provided exposed active sites. Moreover, NiS2/MOF/HT composite obtained via partial vulcanization not only inherited but also prevented aggregation growth particles. NiS2/MOF composites provide various With combination promotion electronic enrichment (NiS2, MOF), showed excellent performance, whose overpotential at 25 mA cm−2 reduced by 19.5% compared MOF/HT.

Language: Английский

Citations

0