Electron Rearrangement and Surface Reconstruction Improve the High Efficiency Water Oxidation Performance of Amorphous Fe-P-B Catalyst DOI

Dandan Wang,

Yun Liang, Junyu Shi

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179378 - 179378

Published: Feb. 1, 2025

Language: Английский

Facet-Dependent Lattice Oxygen Activation on Oxygen-Defective Co3O4 for Electrocatalytic Oxygen Evolution Reaction DOI
Xiang Chen, Xinyue Xu,

Cuiping Shao

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(5), P. 2182 - 2192

Published: April 12, 2024

Introducing oxygen vacancies into Co-based oxides with different surface structures can significantly affect their coordination environments and electronic structures, possibly contributing to the variation of electrocatalytic evolution reaction (OER) activity. Herein, were introduced Co3O4 cubes truncated octahedrons uncover effects facets (001) (111) on intrinsic OER activity oxygen-defective Co3O4. The (001)-faceted exhibited a lower onset overpotential 298 mV than that multifaceted (335 mV) because sufficient lattice participation in process. Theoretical calculations revealed vacancy surfaces upshift O 2p band center trigger oxidation mechanism while matched well absorbate mechanism. This work offers new insight for designing electrocatalysts by selectively introducing defects well-defined crystal facets.

Language: Английский

Citations

34
Strong interaction heterointerface of NiFe Oxyhydroxide/Cerium oxide for efficient and stable water oxidation DOI
Han Jiao, Chun Wang, Hao Tian

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155063 - 155063

Published: Aug. 23, 2024

Language: Английский

Citations

19
Translating the Optimized Durability of Co‐Based Anode Catalyst into Sustainable Anion Exchange Membrane Water Electrolysis DOI
Sanghwi Han, Jae Hyun Ryu, Won Bo Lee

et al.

Small, Journal Year: 2024, Volume and Issue: 20(27)

Published: Jan. 28, 2024

Abstract Development of robust electrocatalysts for the oxygen evolution reaction (OER) underpins efficient production green hydrogen via anion exchange membrane water electrolysis (AEMWE). This study elucidates factors contributing to degradation cobalt‐based (Co‐based) OER catalysts synthesized electrodeposition, thus establishing strategic approaches enhance their longevity. Systematic variations in electroplating process and subsequent heat treatment reveal a delicate balance between catalytic activity durability, substantiated by comprehensive electrochemical assessments material analyses. Building upon these findings, Co‐based anode is successfully optimized AEMWE single‐cell configuration, showcasing an average rate 0.07 mV h −1 over continuous operation 1500 at current density 1 A cm −2 .

Language: Английский

Citations

13
A Multi‐Active Site Subnano Heterostructures Catalyst Grown In situ POM and Fe0.2Ni0.8Co2O4 onto Nickel Foam Toward Efficient Electrocatalytic Overall Water Splitting DOI
Liping Cui,

Yu‐wen Wang,

Kai Yu

et al.

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

Published: July 10, 2024

Abstract Designing efficient, durable, and cheap bifunctional electrocatalysts is a challenging goal in water splitting. Herein, trivanadium‐substituted Keggin‐type polyoxometalate H 6 PV 3 Mo 9 O 40 (POM) Fe 0.2 Ni 0.8 Co 2 4 (FNCO) are situ grown onto nickel foam (NF) yielding self‐supporting nanoflower‐like heterojunction via convenient hydrothermal reaction. The POM‐Fe /NF as HER OER electrocatalyst, displays low overpotential (89 259 mV) high electrode stability at 10 mA cm −2 . POM‐FNCO/NF the cathode anode requires lower voltage (1.58 V) to provide for overall splitting (OWS), which better than that of commercial catalysts. electronic sponge characteristics POM more active sites fast reaction kinetics OER. synergy FNCO optimizes electron distribution interface enhances intrinsic activity HER/OER. Density Functional Theory (DFT) calculations show molecules preferentially bind on POM‐FNCO. Additionally, has proton‐coupled transfer properties its modified exhibits thermodynamic advantages. synergistic effect these two factors enables efficient This study offers novel pathway construction catalysts by growth nanoclusters spinel oxide sub‐nanometer heterojunctions NF.

Language: Английский

Citations

13
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

12
A review on the modification strategies of transition metal based bifunctional electrocatalysts for air-cathode in zinc-air batteries DOI

Kalsoom Zahra,

Tayyaba Nооr, Naseem Iqbal

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 88, P. 111565 - 111565

Published: April 7, 2024

Language: Английский

Citations

10
Built-in electric fields and extra electric fields in the oxygen evolution reaction DOI

Zihang Feng,

fangyin lu,

Qiming Hu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(29), P. 18047 - 18070

Published: Jan. 1, 2024

OER plays a crucial role in energy storage and conversion, the application of thermal fields is widespread but not systematically discussed. In this work, we have discussion on built-in electric field extra field.

Language: Английский

Citations

10
Reinforced lattice oxygen mechanism of NiFe-LDH@Fe2O3@NF by optimizing the adsorption of oxygen intermediates for efficient water electrolysis DOI
Yongming Luo,

Yingying He,

Jiarun Li

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115497 - 115497

Published: Jan. 1, 2025

Language: Английский

Citations

2
Achieving High‐Performance Electrocatalytic Water Oxidation on Ni(OH)2 with Optimized Intermediate Binding Energy Enabled by S‐Doping and CeO2‐Interfacing DOI Creative Commons
Xiang Chen, Xinyue Xu, Yuwen Cheng

et al.

Small, Journal Year: 2023, Volume and Issue: 20(8)

Published: Oct. 10, 2023

Abstract The adsorption energy of the reaction intermediates has a crucial influence on electrocatalytic activity. Ni‐based materials possess high oxygen evolution (OER) performance in alkaline, however too strong binding *OH and barrier rate‐determining step (RDS) severely limit their OER Herein, facile strategy is shown to fabricate novel vertical nanorod‐like arrays hybrid structure with interface contact S‐doped Ni(OH) 2 CeO situ grown Ni foam (S‐Ni(OH) /CeO /NF) through one‐pot route. alcohol molecules oxidation experiments theoretical calculations demonstrate that S‐doping ‐interfacing significantly modulate energies toward optimal value reduce RDS, contributing remarkable activity for S‐Ni(OH) /NF an ultralow overpotential 196 mV at 10 mA cm −2 long‐term durability over 150 h OER. This work offers efficient doping interfacing tune obtaining high‐performance electrocatalysts.

Language: Английский

Citations

18
Co-doped NiFe carbonate hydroxide hydrate nanosheets with edge effect constructed from spent lithium-ion battery ternary cathodes for oxygen evolution reaction DOI
Liang Yu,

Huanhui Chen,

Gaoyang Ma

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 668, P. 190 - 201

Published: April 24, 2024

Language: Английский

Citations

9