Preparation and performance analysis of ILs@MoS2 modified polyimide proton exchange membrane

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-03-04 DOI:10.1016/j.mseb.2025.118163

Yanming Wang , Yao Wang , Bihai Su , Feibo Li , Linlin Shi , Xiaojing Wang , Lingwei Li , Jiale Zhao , Tianlong Wang , Ping Li , Xiaoliang Zhang , Jingbo Mu , Gai Zhao , Yu Dong

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引用次数: 0

Abstract

Proton exchange membrane (PEM) is widely implemented as a pivotal component in fuel cell technology. However, cost-effectiveness and complex preparation protocols of commercial PEMs remain major challenges for PEM applications. In this paper, a variety of sulfonated polyimide (SPI) composite films filled with ionic liquids @ molybdenum sulfide (ILs@MoS₂) are prepared, which simultaneously yield superior proton conductivity and reduced pollution with feasibility. It is found that with increasing the ILs@MoS₂ ratio, composite films with an ILs@MoS₂ content of 1.5 wt% exhibit a significant improvement of 68 % in proton conductivity, increasing from 0.0778 to 0.1308 S/cm at 80 °C under 100 % relative humidity (RH). This result is believed to be partly attributed to the presence of the dense network of active sites and hydrogen bonds promoted by ILs@MoS₂. Overall, SPI composite films modified by ILs@MoS₂ demonstrate potential as alternatives for applications in PEM technologies.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.