Influence of mesoporous phosphotungstic acid on the physicochemical properties and performance of sulfonated poly ether ether ketone in proton exchange membrane fuel cell

Autor: Mohd Hilmi Mohamed, Hamid Ilbeygi, Juhana Jaafar, Madzlan Aziz, M.H.D. Othman, Mukhlis A. Rahman
Přispěvatelé: Mohamed, Mohd Hilmi, Ilbeygi, Hamid, Jaafar, Juhana, Aziz, Madzlan, Othman, MHD, Rahman, Mukhlis A
Rok vydání: 2022
Předmět:
Zdroj: International Journal of Hydrogen Energy. 47:10736-10746
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2022.01.084
Popis: Refereed/Peer-reviewed This study demonstrates the successful development of hybrid mesoporous siliceous phosphotungstic acid (mPTA-Si) and sulfonated poly ether ether ketone (SPEEK) as a proton exchange membrane with a high performance in hydrogen proton exchange membrane fuel cells (PEMFC). SPEEK acts as a polymeric membrane matrix and mPTA-Si acts as the mechanical reinforcer and proton conducting enhancer. Interestingly, incorporating mPTA-Si did not affect the morphological aspect of SPEEK as dense membrane upon loading the amount of mPTA-Si up to 2.5 wt%. The water uptake reduced to 14% from 21.5% when mPTA-Si content increases from 0.5 to 2.5 wt% respectively. Meanwhile, the proton conductivity increased to 0.01 Scm−1 with 1.0 wt% mPTA-Si and maximum power density of 180.87 mWcm−2 which is 200% improvement as compared to pristine SPEEK membrane. The systematic study of hybrid SP-mPTA-Si membrane proved a substantial enhancement in the performance together with further improvement on physicochemical properties of parent SPEEK membrane desirable for the PEMFC application.
Databáze: OpenAIRE