Boosting the Electrochemical Hydrogen Evolution Activity by In Situ Decoration of Ag Nanoparticles over Few Layered MoS2 Nanosheets

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2025-02-26 DOI:10.1007/s10562-025-04957-2

Akshaya Pisal Deshmukh, Reshma Bhosale, Tejashree Bhave

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Abstract

In this work we have synthesized few layered MoS₂ nanosheets and to boost the electrochemical hydrogen evolution reaction (HER) over as an electrocatalyst, in situ Ag nanoparticles are loaded uniformly on the sheets by using simple and one pot method of hydrothermal synthesis. The overpotential drop recorded in Ag/MoS₂ is almost double as compared to pristine MoS₂ which indicates that decoration of Ag has lowered the barrier energy of the HER reaction and increased the efficiency of catalyst. In turn, layered structure of MoS₂ provided the matrix for uniform loading of Ag nanoparticles. More importantly, lower Tafel value (74 mV/dec), lower charge transfer resistance and increased electric double layer capacitance in 10 wt% Ag/MoS₂ clearly implies the enhanced HER performance as well as robust stability owing to improved interface between Ag and MoS₂ along with increased exposed active sites. Therefore, this work explicitly focuses on the study of in situ loading of Ag over MoS₂ which provided more accessibility to the active sites to elevate the HER activity.

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来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.