TY  - JOUR
VL  - 329
JF  - Journal of Solid State Chemistry
A1  - Junoh, H.
A1  - Awang, N.
A1  - Ahmad, S.N.A.
A1  - Azhar, M.
A1  - Jaafar, J.
A1  - Nordin, N.A.H.M.
A1  - Ismail, A.F.
A1  - Qtaishat, M.R.
A1  - Matsuura, T.
A1  - Othman, M.H.D.
A1  - Rahman, M.A.
A1  - Zainoodin, A.M.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174345638&doi=10.1016%2fj.jssc.2023.124395&partnerID=40&md5=4350785615c7f827c9c508bdd0fc3357
Y1  - 2024///
TI  - Contribution of zeolitic imidazolate framework-8 in improving the performance of polymer electrolyte membrane for direct methanol fuel cell
ID  - scholars20277
KW  - Direct methanol fuel cells (DMFC); Hydrogen bonds; Methanol; Methanol fuels; Polyelectrolytes; Proton exchange membrane fuel cells (PEMFC)
KW  -  Direct-methanol fuel cells; Methanol barriers; Methanol permeability; Nafion 117; PEM; Performance; Polymer electrolyte membranes; Porous membranes; Proton conducting; Zeolitic imidazolate framework-8
KW  -  Proton conductivity
N1  - cited By 1
N2  - Introducing ZIF-8 into the PES-cSMM membranes played a pivotal role in the development of proton-conducting pathways and an effective methanol barrier. We employed dry-wet phase inversion techniques to fabricate PES-cSMM, finding that a 3 wt cSMM content yielded optimal results. The resulting PES-cSMM exhibits impressive performance, with a 38 higher selectivity and a 95 greater methanol barrier compared to Nafion® 117. The imidazole-N-H linker in the terminal PES-cSMM/ZIF-8 promotes proton transport through a hydrogen bond chain, while the hydrophobic backbone acts as an effective methanol filter. As a result, PES-cSMM/ZIF-8 boasts a 13-fold higher water uptake than Nafion® 117 and achieves a 99 improvement in methanol sieving performance, a highly promising breakthrough for DMFC systems. Proton conductivity for the PES-cSMM/ZIF-8 immersion membrane reaches 19.5 � 10-3 Scm-1, comparable to Nafion® 117, which is 20.4 � 10-3 Scm-1. The structural flexibility of ZIF-8 within PES-cSMM facilitates efficient proton conduction, while the ZIF-8 cage acts as a robust methanol barrier. Computational analysis revealed covalent bonding within the PES-cSMM system. We characterized the chemical interactions in PES-cSMM/ZIF-8 using topology analysis, specifically the Atom in Molecules/Non-covalent analysis (AIM/NCI) technique. © 2023 Elsevier Inc.
AV  - none
ER  -