二维MoS2/Ti3C2 MXene纳米复合材料在碱性介质中的高效析氢反应

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2025-04-27 DOI:10.1016/j.materresbull.2025.113514

Rachmadani Hasanah , Yoga Romdoni , Vivi Fauzia , A. Arifutzzaman , Farihahusnah Hussin , Mohamed Kheireddine Aroua , Munawar Khalil

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引用次数: 0

摘要

研究了水热法制备MoS2/Ti3C2 MXene纳米复合材料。基于该结果，复合材料在Ti3C2 MXene纳米片表面呈现出2D/2D花状MoS2层。MoS2和ti3c2mxene的集成显著提高了碱性电解质中析氢反应的电催化活性。电化学研究表明，MoS2/Ti3C2 MXene纳米复合材料具有较低的过电位，Tafel斜率分别为421 mV和217 mV dec−1。电化学阻抗谱分析还表明，纳米复合材料的电荷转移电阻（Rct）显著降低，为1.66 kΩ。通过电化学双层电容（Cdl）估算，纳米复合材料的电化学表面积（ECSA）为0.127 mF cm−2。值得注意的是，MoS2/Ti3C2 MXene纳米复合材料表现出优异的长期稳定性。这些结果证明了MoS2/Ti3C2 MXene纳米复合材料作为一种高效的HER电催化剂的显著能力及其对可持续能源生产的贡献。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Two-dimension MoS2/Ti3C2 MXene nanocomposite for an efficient hydrogen evolution reaction in alkaline media

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Two-dimension MoS2/Ti3C2 MXene nanocomposite for an efficient hydrogen evolution reaction in alkaline media

This study reports an investigation on the fabrication of MoS₂/Ti₃C₂ MXene nanocomposites via a hydrothermal route. Based on the result, the composite exhibited 2D/2D flower-like MoS₂ layers stacked on the surface of Ti₃C₂ MXene nanosheets. The integration of MoS₂ and Ti₃C₂ MXene significantly enhances electrocatalytic activity of hydrogen evolution reaction in alkaline electrolytes. Electrochemical studies reveal that the MoS₂/Ti₃C₂ MXene nanocomposites exhibits a low overpotential and Tafel slope values of 421 mV and 217 mV dec⁻¹, respectively. Electrochemical impedance spectroscopy analysis also reveals a significantly reduced charge transfer resistance (R_ct) of 1.66 kΩ for nanocomposite. Electrochemical surface area (ECSA) of the nanocomposite, estimated from the electrochemical double-layer capacitance (C_dl), is 0.127 mF cm⁻². Notably, the MoS₂/Ti₃C₂ MXene nanocomposites exhibits excellent long-term stability. These results demonstrate the significant capacity of MoS₂/Ti₃C₂ MXene nanocomposite as a highly effective electrocatalyst for HER and its contribution to sustainable energy production.

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.