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用于潜在燃料电池应用的离子液体和二氧化硅改性聚砜基膜。

Polysulfone-Based Membranes Modified with Ionic Liquids and Silica for Potential Fuel Cell Applications.

作者信息

Fernández-Llamazares Emma, Nguyen Thi Hai Van, Verdugo Pere, Gual Aitor, Garcia Diogo M E, Delgado Simão Claudia, Díaz de Los Bernardos Miriam, Nogalska Adrianna

机构信息

Unit of Chemical Technologies, Technology Centre of Catalonia, Eurecat, 43007 Tarragona, Spain.

Unit of Functional Printing and Embedded Devices, Technology Centre of Catalonia, Eurecat, 08302 Mataró, Spain.

出版信息

Membranes (Basel). 2024 Dec 13;14(12):270. doi: 10.3390/membranes14120270.

DOI:10.3390/membranes14120270
PMID:39728720
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11677280/
Abstract

The urgent need for sustainable, low-emission energy solutions has positioned proton exchange membrane fuel cells (PEMFCs) as a promising technology in clean energy conversion. Polysulfone (PSF) membranes with incorporated ionic liquid (IL) and hydrophobic polydimethylsiloxane-functionalized silica (SiO-PDMS) were developed and characterized for their potential application in PEMFCs. Using a phase inversion method, membranes with various combinations of PSFs, SiO-PDMS, and 1-butyl-3-methylimidazolium triflate (BMI.TfO) (1-10 wt%) were prepared and characterized to assess their morphology, porosity, wettability, ionic conductivity, and thermal stability. Incorporating IL significantly altered the membrane structure, increasing porosity and surface roughness, while SiO-PDMS enhanced IL retention, reducing leakage by up to 32%. Proton conductivity increased by up to 30 times compared to pure PSF, and membranes exhibited high hydrophilicity at optimal IL concentrations. This work highlights the potential of IL and silica-based membranes for practical applications in PEMFCs.

摘要

对可持续、低排放能源解决方案的迫切需求使质子交换膜燃料电池（PEMFC）成为清洁能源转换领域一项很有前景的技术。开发了含有离子液体（IL）和疏水性聚二甲基硅氧烷功能化二氧化硅（SiO-PDMS）的聚砜（PSF）膜，并对其在PEMFC中的潜在应用进行了表征。采用相转化法制备了具有不同PSF、SiO-PDMS和1-丁基-3-甲基咪唑三氟甲磺酸盐（BMI.TfO）（1-10 wt%）组合的膜，并对其形态、孔隙率、润湿性、离子电导率和热稳定性进行了表征，以评估其性能。加入IL显著改变了膜结构，增加了孔隙率和表面粗糙度，而SiO-PDMS增强了IL的保留率，使泄漏减少了32%。与纯PSF相比，质子电导率提高了30倍，并且在最佳IL浓度下膜表现出高亲水性。这项工作突出了基于IL和二氧化硅的膜在PEMFC实际应用中的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/a6104be8b5c7/membranes-14-00270-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/b940941b893b/membranes-14-00270-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/e056f154a96b/membranes-14-00270-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/5aef74477704/membranes-14-00270-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/93ec56bc2e0b/membranes-14-00270-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/c4cb421d060b/membranes-14-00270-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/e146b839607e/membranes-14-00270-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/12877d4828d8/membranes-14-00270-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/a6104be8b5c7/membranes-14-00270-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/b940941b893b/membranes-14-00270-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/e056f154a96b/membranes-14-00270-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/5aef74477704/membranes-14-00270-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/93ec56bc2e0b/membranes-14-00270-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/c4cb421d060b/membranes-14-00270-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/e146b839607e/membranes-14-00270-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/12877d4828d8/membranes-14-00270-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99d1/11677280/a6104be8b5c7/membranes-14-00270-g008.jpg

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本文引用的文献

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Sensitivity and Stability Study of Test Conditions for a 1 kW Proton Exchange Membrane Fuel Cell Stack.1千瓦质子交换膜燃料电池堆测试条件的敏感性与稳定性研究
Membranes (Basel). 2024 Sep 18;14(9):197. doi: 10.3390/membranes14090197.
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Enhancing Polymer Electrolyte Membrane Fuel Cells with Ionic Liquids: A Review.
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Chemistry. 2024 Mar 12;30(15):e202303525. doi: 10.1002/chem.202303525. Epub 2024 Jan 16.
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Electrotransport Properties of Perfluorinated Cation-Exchange Membranes of Various Thickness.不同厚度全氟阳离子交换膜的电输运性质
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Investigating the Sulfonated Chitosan/Polyvinylidene Fluoride-Based Proton Exchange Membrane with fSiO as Filler in Microbial Fuel Cells.研究以fSiO为填料的磺化壳聚糖/聚偏氟乙烯基质子交换膜在微生物燃料电池中的应用
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