๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Synthesis and characterization of proton exchange membranes based on sulfonated poly(fluorenyl ether nitrile oxynaphthalate) for direct methanol fuel cells

โœ Scribed by Yul-Hwan Seong; Jongok Won; Sang-Kyung Kim; Kidon Nam; Soo-Kil Kim; Dong-Won Kim

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
482 KB
Volume
36
Category
Article
ISSN
0360-3199

No coin nor oath required. For personal study only.

โœฆ Synopsis

A series of sulfonated poly(fluorenyl ether nitrile oxynaphthalate) (SPFENO) copolymers with different degree of sulfonation (DS) are synthesized via nucleophilic polycondensation reactions with commercially available monomers. Incorporation of the naphthalanesulfonate group into the copolymers and their copolymer structures are confirmed by 1 H NMR spectroscopy. Thermal stability, mechanical properties, water uptake, swelling behavior, proton conductivity and methanol permeability of the SPFENO membranes are investigated with respect to their structures. The electrochemical performance of a direct methanol fuel cell (DMFC) assembled with the SPFENO membrane was evaluated and compared to a DMFC with a Nafion 117 membrane. The DMFC assembled with the SPFENO membrane of proper DS exhibits better electrochemical performance compared to the Nafion 117-based cell.

๐Ÿ“œ SIMILAR VOLUMES

Preparation and properties of bisphenol
Preparation and properties of bisphenol A-based sulfonated poly(arylene ether sulfone) proton exchange membranes for direct methanol fuel cell
โœ Ni Zhang; Junjing Li; Xiangyu Wang; Zhi Xia; Huiling Liu ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 351 KB ๐Ÿ‘ 2 views

## Abstract Novel bisphenol Aโ€based sulfonated poly(arylene ether sulfone) (bi Aโ€SPAES) copolymers were successfully synthesized via direct copolymerization of disodium 3,3โ€ฒโ€disulfonateโ€4,4โ€ฒโ€dichlorodiphenylsulfone, 4,4โ€ฒโ€dichlorodiphenylsulfone, and bisphenol A. The copolymer structure was confirme

Characterization and performance of prot
Characterization and performance of proton exchange membranes for direct methanol fuel cell: Blending of sulfonated poly(ether ether ketone) with charged surface modifying macromolecule
โœ M.N.A. Mohd Norddin; A.F. Ismail; D. Rana; T. Matsuura; A. Mustafa; A. Tabe-Moha ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 895 KB

Modification of sulfonated poly(ether ether ketone) (SPEEK) membrane was attempted by blending charged surface modifying macromolecule (cSMM). The modified membrane was tested for direct methanol fuel cell (DMFC) application; i.e. a SPEEK/cSMM blend membrane was compared to a SPEEK membrane and a Na