Enhanced Hydrogen Evolution Activity of MOS$_2$-rGO Composite Synthesized via Hydrothermal Technique

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Autori principali: Sebastian, Abhishek, R, Pragna
Natura: Preprint
Pubblicazione: 2024
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author Sebastian, Abhishek
R, Pragna
author_facet Sebastian, Abhishek
R, Pragna
contents Hydrogen evolution reaction (HER) has emerged as a promising technique for the production of clean and sustainable energy. In recent years, researchers have been exploring various materials for efficient HER activity. In this study, we report the synthesis of two different materials, namely MOS$_2$ and MoS$_2$-rGO, through a hydrothermal technique. X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, and Raman spectroscopy were used to characterize the materials. XRD analysis revealed the formation of hexagonal MOS$_2$ with a high degree of crystallinity. FTIR analysis confirmed the presence of Mo-S bonds, while Raman spectroscopy provided evidence for the formation of MOS$_2$.To evaluate the HER activity of the materials, linear sweep voltammetry (LSV) was performed. The results showed that MOS$_2$ and MOS$_2$-rGO had good HER activity with low onset potentials and high current densities. The MOS$_2$-rGO material showed improved HER activity compared to MOS$_2$, indicating the potential of graphene oxide as a co-catalyst to enhance the performance of MOS$_2$.
format Preprint
id arxiv_https___arxiv_org_abs_2404_08872
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Enhanced Hydrogen Evolution Activity of MOS$_2$-rGO Composite Synthesized via Hydrothermal Technique
Sebastian, Abhishek
R, Pragna
Materials Science
Artificial Intelligence
Hydrogen evolution reaction (HER) has emerged as a promising technique for the production of clean and sustainable energy. In recent years, researchers have been exploring various materials for efficient HER activity. In this study, we report the synthesis of two different materials, namely MOS$_2$ and MoS$_2$-rGO, through a hydrothermal technique. X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, and Raman spectroscopy were used to characterize the materials. XRD analysis revealed the formation of hexagonal MOS$_2$ with a high degree of crystallinity. FTIR analysis confirmed the presence of Mo-S bonds, while Raman spectroscopy provided evidence for the formation of MOS$_2$.To evaluate the HER activity of the materials, linear sweep voltammetry (LSV) was performed. The results showed that MOS$_2$ and MOS$_2$-rGO had good HER activity with low onset potentials and high current densities. The MOS$_2$-rGO material showed improved HER activity compared to MOS$_2$, indicating the potential of graphene oxide as a co-catalyst to enhance the performance of MOS$_2$.
title Enhanced Hydrogen Evolution Activity of MOS$_2$-rGO Composite Synthesized via Hydrothermal Technique
topic Materials Science
Artificial Intelligence
url https://arxiv.org/abs/2404.08872