Gram-Scale Synthesis of Heteroatom-Doped Carbon-Supported Pt Nanoparticles as Electrocatalysts for Hydrogen Evolution and Oxygen Reduction Reactions

Zhang, Jintao; Lv, Aijing; An, Jialiang; Zhong, Yiwei; Wang, Mingyong

doi:10.1021/acsanm.3c04529

ACS Appl. Nano Mater.

2023

DOI: 10.1021/acsanm.3c04529

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Gram-Scale Synthesis of Heteroatom-Doped Carbon-Supported Pt Nanoparticles as Electrocatalysts for Hydrogen Evolution and Oxygen Reduction Reactions

Jintao Zhang,

Aijing Lv,

Jialiang An

et al.

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2024

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Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn₃O₄ Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution

Hu,

Wang,

Chen

et al. 2024

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The optimization of metal‐support interactions is used to fabricate noble metal‐based nanoclusters with high activity for hydrogen evolution reaction (HER) in acid media. Specifically, the oxygen‐defective Mn3O4 nanosheets supported Pt nanoclusters of ≈1.71 nm in diameter (Pt/V·‐Mn3O4 NSs) are synthesized through the controlled solvothermal reaction. The Pt/V·‐Mn3O4 NSs show a superior activity and excellent stability for the HER in the acidic media. They only require an overpotential of 19 mV to drive −10 mA cm−2 and show negligible activity loss at −10 and −250 mA cm−2 for >200 and >60 h, respectively. Their Pt mass activity is 12.4 times higher than that of the Pt/C and even higher than those of many single‐atom based Pt catalysts. DFT calculations show that their high HER activity arises mainly from the strong metal‐support interaction between Pt and Mn3O4. It can facilitate the charge transfer from Mn3O4 to Pt, optimizing the H adsorption on the catalyst surface and promoting the evolution of H2 through the Volmer–Tafel mechanism. The oxygen vacancies in the V·‐Mn3O4 NSs are found to be inconducive to the high activity of the Pt/V·‐Mn3O4 NSs, highlighting the great importance to reduce the vacancy levels in V·‐Mn3O4 NSs.

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Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn₃O₄ Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution

Hu,

Wang,

Chen

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

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Gram-Scale Synthesis of Heteroatom-Doped Carbon-Supported Pt Nanoparticles as Electrocatalysts for Hydrogen Evolution and Oxygen Reduction Reactions

Cited by 1 publication

References 65 publications

Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn₃O₄ Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution

Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn₃O₄ Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution

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Gram-Scale Synthesis of Heteroatom-Doped Carbon-Supported Pt Nanoparticles as Electrocatalysts for Hydrogen Evolution and Oxygen Reduction Reactions

Cited by 1 publication

References 65 publications

Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn3O4 Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution

Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn3O4 Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution

Contact Info

Product

Resources

About

Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn₃O₄ Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution

Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn₃O₄ Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution