eprintid: 20277
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/02/02/77
datestamp: 2024-06-04 14:20:01
lastmod: 2024-06-04 14:20:01
status_changed: 2024-06-04 14:17:07
type: article
metadata_visibility: show
creators_name: Junoh, H.
creators_name: Awang, N.
creators_name: Ahmad, S.N.A.
creators_name: Azhar, M.
creators_name: Jaafar, J.
creators_name: Nordin, N.A.H.M.
creators_name: Ismail, A.F.
creators_name: Qtaishat, M.R.
creators_name: Matsuura, T.
creators_name: Othman, M.H.D.
creators_name: Rahman, M.A.
creators_name: Zainoodin, A.M.
title: Contribution of zeolitic imidazolate framework-8 in improving the performance of polymer electrolyte membrane for direct methanol fuel cell
ispublished: pub
keywords: Direct methanol fuel cells (DMFC); Hydrogen bonds; Methanol; Methanol fuels; Polyelectrolytes; Proton exchange membrane fuel cells (PEMFC), Direct-methanol fuel cells; Methanol barriers; Methanol permeability; Nafion 117; PEM; Performance; Polymer electrolyte membranes; Porous membranes; Proton conducting; Zeolitic imidazolate framework-8, Proton conductivity
note: cited By 1
abstract: 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.
date: 2024
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174345638&doi=10.1016%2fj.jssc.2023.124395&partnerID=40&md5=4350785615c7f827c9c508bdd0fc3357
id_number: 10.1016/j.jssc.2023.124395
full_text_status: none
publication: Journal of Solid State Chemistry
volume: 329
refereed: TRUE
citation:   Junoh, H. and Awang, N. and Ahmad, S.N.A. and Azhar, M. and Jaafar, J. and Nordin, N.A.H.M. and Ismail, A.F. and Qtaishat, M.R. and Matsuura, T. and Othman, M.H.D. and Rahman, M.A. and Zainoodin, A.M.  (2024) Contribution of zeolitic imidazolate framework-8 in improving the performance of polymer electrolyte membrane for direct methanol fuel cell.  Journal of Solid State Chemistry, 329.