Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni<sub>3</sub>S<sub>2</sub>/NF composites

Shoaib, Muhammad; Qiao, Fen; Xu, Xiangchao; Zhou, Taihang; Liu, Yanzhen

doi:10.1039/d3ce01246h

CrystEngComm

2024

DOI: 10.1039/d3ce01246h

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Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni₃S₂/NF composites

Muhammad Shoaib,

Fen Qiao,

Xiangchao Xu

et al.

Abstract: Developing non-precious, stable, and highly efficient electrocatalyst materials is crucial for large-scale practical Hydrogen evaluation reactions (HER) applications. Ni3S2 is a prominent catalyst due to its high efficiency and ease...

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Fabricating Spinel-Type High-Entropy Oxides of (Co, Fe, Mn, Ni, Cr)3O4 for Efficient Oxygen Evolution Reaction

Hao,

Wang,

Tan

et al. 2024

Materials

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Fabricating efficient oxygen evolution reaction (OER) electrocatalysts is crucial for water electrocatalysis. Herein, the spinel-type high-entropy oxides of (Co, Fe, Mn, Ni, Cr)3O4 were synthesized through the high-temperature calcination approach. The influences of calcination temperatures on structures and electrochemical properties were investigated. The optimized catalyst of HEO-900 contains the hybrid structure of regular polyhedrons and irregular nanoparticles, which is beneficial for the exposure of electrochemically active sites. It was identified that the abundant high-valence metal species of Ni3+, Co3+, Fe3+, Mn4+, and Cr3+ are formed during the OER process, which is generally regarded as the electrochemically active sites for OER. Because of the synergistic effect of multi-metal active sites, the optimized HEO-900 catalyst indicates excellent OER activity, which needs the overpotential of 366 mV to reach the current density of 10 mA cm−2. Moreover, HEO-900 reveals the prominent durability of running for 24 h at the current density of 10 mA cm−2 without clear delay. Therefore, this work supplies a promising route for preparing high-performance multi-metal OER electrocatalysts for water electrocatalysis application.

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Fabricating Spinel-Type High-Entropy Oxides of (Co, Fe, Mn, Ni, Cr)3O4 for Efficient Oxygen Evolution Reaction

Hao,

Wang,

Tan

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

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Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni₃S₂/NF composites

Abstract: Developing non-precious, stable, and highly efficient electrocatalyst materials is crucial for large-scale practical Hydrogen evaluation reactions (HER) applications. Ni3S2 is a prominent catalyst due to its high efficiency and ease...

Cited by 1 publication

References 55 publications

Fabricating Spinel-Type High-Entropy Oxides of (Co, Fe, Mn, Ni, Cr)3O4 for Efficient Oxygen Evolution Reaction

Fabricating Spinel-Type High-Entropy Oxides of (Co, Fe, Mn, Ni, Cr)3O4 for Efficient Oxygen Evolution Reaction

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Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni3S2/NF composites

Abstract: Developing non-precious, stable, and highly efficient electrocatalyst materials is crucial for large-scale practical Hydrogen evaluation reactions (HER) applications. Ni3S2 is a prominent catalyst due to its high efficiency and ease...

Cited by 1 publication

References 55 publications

Fabricating Spinel-Type High-Entropy Oxides of (Co, Fe, Mn, Ni, Cr)3O4 for Efficient Oxygen Evolution Reaction

Fabricating Spinel-Type High-Entropy Oxides of (Co, Fe, Mn, Ni, Cr)3O4 for Efficient Oxygen Evolution Reaction

Contact Info

Product

Resources

About

Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni₃S₂/NF composites