Nano-Silica-Modified Chitosan-Based Membranes for Application in Direct Methanol Fuel Cells.

Livhuwani Elsie Modau, Tebogo Mashola, Rudzani Annetjie Sigwadi, Touhami Mokrani, Fulufhelo Nemavhola

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Article in Polymers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Livhuwani Elsie ModauDepartment of Chemical Engineering, University of South Africa, Florida 1710, South Africa.

Tebogo MasholaDepartment of Chemical Engineering, University of South Africa, Florida 1710, South Africa.

Rudzani Annetjie SigwadiDepartment of Chemical Engineering, University of South Africa, Florida 1710, South Africa.ORCID 0000-0002-3789-0874

Touhami MokraniDepartment of Chemical Engineering, University of South Africa, Florida 1710, South Africa.ORCID 0000-0002-1109-9515

Fulufhelo NemavholaDepartment of Mechanical Engineering, Faculty of Engineering and the Built Environment, Durban University of Technology, Durban 4000, South Africa.ORCID 0000-0002-6250-5157

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Membrane electrolytes play a critical role in energy conversion devices. The development of stable, efficient membrane electrolytes is urgent and demands paramount attention for the successful commercialization of fuel cells. Chitosan, a naturally occurring material, and silica particles were used as precursors for organic-inorganic membrane polymers. The silica nanoparticles were prepared by the sol-gel and Stober methods and characterized using various techniques, including XRD, FTIR, etc. The silica-incorporated membranes show improved properties, with the sulfur-functionalized membranes having optimal proton conductivity, ion-exchange capacity, and tensile strength of 0.0238 S/cm, 2.86 meq/g, and 7.3 MPa, respectively. It also showed the lowest methanol permeability. This was clear proof that membrane functionalization has a positive impact on tuning the properties of electrolyte membranes and should be further explored in membrane development.

Indexed as

chitosanfuel cellmembranenanocompositesilica

Identifiers

PMID41470956

DOI10.3390/polym17243281

PMCPMC12736454

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.