MoS2/NiO hybridized with reduced graphene oxide for glycerol and sorbitol electrooxidation

IF 4.7 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications Pub Date : 2025-05-10 DOI:10.1016/j.elecom.2025.107952

Mohammad Bagher Askari , Sadegh Azizi , Mohammad Taghi Tourchi Moghadam , Parisa Salarizadeh

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引用次数: 0

Abstract

Using glycerol and sorbitol as fuels in fuel cells has received limited attention in the literature. This study presents the synthesis of a composite material comprising molybdenum disulfide (MoS₂) and nickel oxide (NiO) via a hydrothermal method, which was subsequently hybridized with reduced graphene oxide (RGO) to enhance its catalytic performance. The catalytic activity of the MoS₂/NiO/RGO composite for the oxidation of glycerol and sorbitol was systematically evaluated. The results demonstrated exceptional catalytic activity, with the current density of 311 mA/cm² at 0.5 V for MoS₂/NiO/RGO catalyst during glycerol oxidation reaction (GOR). Furthermore, the catalyst exhibited remarkable stability, maintaining 86.6 % of its activity after 5 h of chronoamperometric analysis in the glycerol oxidation reaction. In the case of the sorbitol oxidation reaction (SOR), the MoS₂/NiO/RGO composite delivered impressive results, achieving 205 mA/cm² at 0.51 V and a stability of 90.2 %. This research is promising for introducing cost-effective, durable, and efficient catalysts to oxidize alternative fuels, with potential applications in fuel cell anodes.

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MoS2/NiO与还原氧化石墨烯杂化用于甘油和山梨醇电氧化

在燃料电池中使用甘油和山梨醇作为燃料在文献中受到的关注有限。本研究采用水热法合成了二硫化钼（MoS 2）和氧化镍（NiO）的复合材料，并将其与还原氧化石墨烯（RGO）杂化以提高其催化性能。系统评价了MoS 2 /NiO/RGO复合材料氧化甘油和山梨醇的催化活性。结果表明，MoS₂/NiO/RGO催化剂在0.5 V时具有良好的催化活性，在甘油氧化反应（GOR）中电流密度为311 mA/cm2。此外，该催化剂表现出了显著的稳定性，在甘油氧化反应中，经过5小时的计时电流分析，其活性保持在86.6%。在山梨醇氧化反应（SOR）的情况下，MoS₂/NiO/RGO复合材料取得了令人印象深刻的结果，在0.51 V下达到205 mA/cm2，稳定性为90.2%。这项研究有望引入经济、耐用、高效的催化剂来氧化替代燃料，并在燃料电池阳极中具有潜在的应用前景。

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来源期刊

Electrochemistry Communications 工程技术-电化学

CiteScore

8.50

自引率

3.70%

发文量

160

审稿时长

1.2 months

期刊介绍： Electrochemistry Communications is an open access journal providing fast dissemination of short communications, full communications and mini reviews covering the whole field of electrochemistry which merit urgent publication. Short communications are limited to a maximum of 20,000 characters (including spaces) while full communications and mini reviews are limited to 25,000 characters (including spaces). Supplementary information is permitted for full communications and mini reviews but not for short communications. We aim to be the fastest journal in electrochemistry for these types of papers.