Atomic‐Scale Robust Modulation of Pt on Monolayer MoS2 for Enhanced on‐Chip Hydrogen Evolution Reaction DOI Open Access

Wenxiu Yan,

Zhitao Zhao,

Zeqin Xin

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 2, 2025

Abstract Maintaining high catalytic performance while maximizing metal atom utilization requires atomic‐level modulation of catalyst microstructure in noble‐metal design. On‐chip microreactors enable precise measurements activity specific regions, advancing the understanding structure‐property relationships. Here, Pt single atoms (SAs), clusters, and sub‐2.5 nm nanoparticles (NPs) are synthesized on monolayer MoS 2 via defect‐anchoring. electrochemical during hydrogen evolution reaction (HER) demonstrated that clusters‐MoS exhibited superior activity, achieving a 94 mV overpotential at 10 mA cm −2 , much lower than SAs‐MoS (202 mV) NPs‐MoS (259 mV). Density functional theory calculations revealed electron transfer from to clusters altered H* adsorption site, yielding near‐zero Gibbs free energy for enhanced HER activity. The work reveals relationships Pt‐modified catalysts, guiding atom‐efficient noble development emphasizing mapping between preparation, microstructure, performance.

Язык: Английский

Atomic‐Scale Robust Modulation of Pt on Monolayer MoS2 for Enhanced on‐Chip Hydrogen Evolution Reaction DOI Open Access

Wenxiu Yan,

Zhitao Zhao,

Zeqin Xin

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 2, 2025

Abstract Maintaining high catalytic performance while maximizing metal atom utilization requires atomic‐level modulation of catalyst microstructure in noble‐metal design. On‐chip microreactors enable precise measurements activity specific regions, advancing the understanding structure‐property relationships. Here, Pt single atoms (SAs), clusters, and sub‐2.5 nm nanoparticles (NPs) are synthesized on monolayer MoS 2 via defect‐anchoring. electrochemical during hydrogen evolution reaction (HER) demonstrated that clusters‐MoS exhibited superior activity, achieving a 94 mV overpotential at 10 mA cm −2 , much lower than SAs‐MoS (202 mV) NPs‐MoS (259 mV). Density functional theory calculations revealed electron transfer from to clusters altered H* adsorption site, yielding near‐zero Gibbs free energy for enhanced HER activity. The work reveals relationships Pt‐modified catalysts, guiding atom‐efficient noble development emphasizing mapping between preparation, microstructure, performance.

Язык: Английский

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