Sulfonated multiwalled carbon nanotube/sulfonated poly(ether sulfone) composite membrane with low methanol permeability for direct methanol fuel cells
- Authors
- Yun, Sungjin; Heo, Yusun; Im, Hyungu; Kim, Jooheon
- Issue Date
- 25-Nov-2012
- Publisher
- WILEY-BLACKWELL
- Keywords
- fuel cell; direct methanol fuel cell; poly(ether sulfone); multiwalled carbon nanotube; methanol permeability
- Citation
- JOURNAL OF APPLIED POLYMER SCIENCE, v.126, no.S2, pp E513 - E521
- Journal Title
- JOURNAL OF APPLIED POLYMER SCIENCE
- Volume
- 126
- Number
- S2
- Start Page
- E513
- End Page
- E521
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/20017
- DOI
- 10.1002/app.36741
- ISSN
- 0021-8995
1097-4628
- Abstract
- An organic/inorganic composite membrane was prepared based on sulfonated poly(ether sulfone) (s-PES) embedded with sulfonated multiwalled carbon nanotubes (s-MWNTs). The ion exchange capacity (IEC), proton conductivity, and water uptake of the SPES membranes increased with increasing s-MWNTs content. The increased water uptake was attributed to hydrogen bond formation between the carbonyl group of the s-MWNTs and a water molecule. The composite membranes exhibited proton conductivities ranging from 3.9281 x 10-4 to 7.0788 x 10-3 S/cm at 80 degrees C, as well as low methanol permeability ranging from 4.4405 x 10-10 to 9.1008 x 10-10 cm2 s-1 at 25 degrees C. (c) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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