Hollow CoFeSe Nanocubes Supported on NiCoSe Nanosheet-Decorated Ni Foam as Electrocatalysts for Water Splitting DOI

Mengyuan Xie,

Hui Ding, Tingting Huang

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

Rationally-Constructed Porous Nanosheet Ni2P–Ni5P4 Heterostructures for Robust Oxygen Evolution Electrode DOI

Min Jie Wang,

Bingjie Zhou, Yangyang Feng

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

The development of superior non-noble-metal-based oxygen evolution reaction (OER) electrocatalysts is essential for large-scale hydrogen production. In this study, an integrated porous nanosheet Ni2P-Ni5P4 heterostructures were designed as excellent OER electrocatalyst. synthesized demonstrated notable activity, achieving a small overpotential 260 mV to sustain typical 10 mA cm-2 current density, along with exceptional durability over 2000 CV cycles. distinctive structure enhances the exposure active sites and improves mass transport efficiency. Density functional theory (DFT) calculations revealed that d-band center Ni was shifted downward, reducing adsorption strength critical oxygen-containing intermediates (*O, *OH, *OOH) in heterostructures. This modification lowered barrier rate-determining step (RDS) involving transformation from *O *OOH, thereby boosting inherent activity. Additionally, partial electron localization combination RDS intermediate observed by functions (ELFs) Ni2P-Ni5P4, weakening overall interaction. Further crystal orbital Hamiltonian population confirmed reduced Ni-O net bonding energy 0.69 eV adsorbed compared Ni2P (1.49 eV) Ni5P4 (1.12 aligning DFT ELF findings. These results provide promising approach valuable guidance design cost-effective suitable storage applications, including metal-air cells water oxidation processes.

Language: Английский

Citations

1
Phase-Dependent Electronic Structure Modulation of Nickel Selenides by Fe Doping for Enhanced Bifunctional Oxygen Electrocatalysis DOI

A. S. Vigneshraaj,

Siva Kumar Ramesh, Jinkwon Kim

et al.

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Different phases of nickel selenides are synthesized from a single coordination polymer precursor by tuning the electronic structure for bifunctional electrocatalytic OER and ORR in alkaline media.

Language: Английский

Citations

0
Coengineering of Ni-NDC derived graphitic Ni2P/NiSe2 on a Ti3C2Tx MXene-modified 3D self-supporting electrode: Unraveling 2D‒2D multiphases for overall water electrolysis DOI
Ishwor Pathak, Debendra Acharya, Kisan Chhetri

et al.

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112238 - 112238

Published: Feb. 1, 2025

Language: Английский

Citations

0
Regulation of d-band center in hollow CeO2/CoFeP heterojunctions for boosting bifunctional oxygen/hydrogen evolution electrocatalysis DOI

Jing-Chang Ni,

De‐Kun Liu,

Xue‐Zhi Song

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1017, P. 179056 - 179056

Published: Feb. 1, 2025

Language: Английский

Citations

0
Hollow CoFeSe Nanocubes Supported on NiCoSe Nanosheet-Decorated Ni Foam as Electrocatalysts for Water Splitting DOI

Mengyuan Xie,

Hui Ding, Tingting Huang

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

Citations

0