Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 14, Issue 10, Pages 7793-7797Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2014.9462
Keywords
Ionomer Binder; Chitosan; On-Site Crosslinking Method; Anion Conducting Polymers; Solid Alkaline Fuel Cell
Categories
Funding
- New and Renewable Energy of Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korean government's Ministry and Knowledge Economy [2010T100100838]
- Ministry of Education, Science Technology (MEST)
- National Research Foundation of Korea (NRF) through the Human Resource Training Project for Regional Innovation [2012025906]
- Sangmyung University
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For solid alkaline fuel cell applications, membrane-electrode assemblies (MEAs) should be prepared. Thus, in this study, anion-conducting ionomer binder was prepared for electrodes of MEAs. Specifically, we synthesized water soluble anionic binder solutions based on quaternized chitosan derivatives (QCDs) and cross-linked QCDs and prepared a novel electrode. The electrochemical and physicochemical properties of ionomer binder and electrode were investigated by FT-IR, NMR and ionic conductivity. The ionic conductivity of these cross-linked QCDs was 9.7 x 10(-3) S cm(-1) in deionized water at room temperature. The membrane electrode assemblies (MEAs) were prepared by a spray method and were investigated in terms of cyclic voltammetry, impedance and fuel cell performance. The MEA with the 35 wt% QCD ionomer showed the highest performance and confirmed the successful formation of ionomer binder at the electrode of the MEA by the on-site crosslinking reaction.
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