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Author Kusumastuti, Ella ♦ Siniwi, Widasari Trisna ♦ Mahatmanti, F. Widhi ♦ Jumaeri ♦ Atmaja, Lukman ♦ Widiastuti, Nurul
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ AMINO ACIDS ♦ ELECTROLYTES ♦ FOURIER TRANSFORMATION ♦ FUEL CELLS ♦ INFRARED SPECTRA ♦ MATRIX MATERIALS ♦ MEMBRANES ♦ METHANOL ♦ NANOPARTICLES ♦ OLIGOSACCHARIDES ♦ ORGANIC POLYMERS ♦ PERMEABILITY ♦ PROTON CONDUCTIVITY ♦ SOL-GEL PROCESS ♦ SWELLING
Abstract Chitosan has been widely used as polymer matrix for Polymer Electrolyte Membrane (PEM) application replacing Nafion which has shortcomings in terms of high methanol permeability that degrades the performance of fuel cells. Chitosan membranes modification is performed by adding nanosilica to prevent methanol transport through the membrane. Nanosilica is synthesized by sol-gel method and the particle diameter is obtained by analysis using Breunner Emmet Teller (BET) that is 6.59 nm. Nanosilica is mixed with chitosan solution to obtain nanosilica-chitosan as polymer electrolyte membrane. The membranes are synthesized through phase inversion method with nanosilica composition including 0; 0.5; 1; 2; 3; 5; and 10% w/w of chitosan. Characterization of the membranes indicate that the results of water swelling, proton conductivity and methanol permeability of the membrane with 3% nanosilica respectively were 49.23%, 0.231 S/cm, and 5.43 x 10{sup −7} cm{sup 2}/s. Based on the results of membrane selectivity calculation, the optimum membrane is the composition of 3% nanosilica with value 5.91 x 105 S s cm{sup −3}. The results of functional groups analysis with FTIR showed that it was only physical interaction that occurred between chitosan and nanosilica since no significant changes found in peak around the wave number 1000-1250 cm{sup −-1}.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-19
Publisher Place United States
Volume Number 1725
Issue Number 1


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