Peranan Komponen Anorganik dalam Membran Nafion Sebagai Elektrolit Sel Bahan Bakar Hidrogen (Proton Exchange Membrane Fuel Cell, PEMFC)

Mahreni, Mahreni and Mohamad, A.B. and Kadhum, A.A.H. and Daud, W.R.W (2009) Peranan Komponen Anorganik dalam Membran Nafion Sebagai Elektrolit Sel Bahan Bakar Hidrogen (Proton Exchange Membrane Fuel Cell, PEMFC). In: Seminar Nasional Teknik Kimia "Kejuangan" 2009. Pengembangan Teknologi Kimia Untuk Pengolahan Sumber Daya Alam Indonesia, 18 Januari 2009, Yogyakarta.


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Abstract Proton conductivity of Nafion membranes and series as well as perfluorosulfonic acid (PFSA) produced by Dow and Aciplek are strongly depend to the water content or water relative humidity on the membrane surface. At low relative humidity and high temperature condition, membrane dehydrated, membrane shrinking and the conductivity reduced dramatically. At high temperature and high relative humidity membrane sweeling was occured. Shringking and swelling cauce cell performance reduction. To overcome the problem, a hygroscopic and highly conductive component is introduce in the cluster of the Nafion polymer matrix. The aim of this study is prepared the nanocomposite membrane using Nation•Si02-PWA mixture in a given composition. The performance of the composite membrane as electrolyte was examined by attaching electrode on both side of composite membrane electrolyte and placing them in a single PEMFC at 60-90°C temperature, 1-2 atm pressure, and 40-100% humidity. Transparent composite membrane was obtained at solvent evaporation temperature of 80°C, annealing temperature of 140°C and an annealing time 10 hour for PWA/TEOS ratio of 45/100 (w/w). The performance result of composite membrane in single PEMlFC shows that at 100% humidity and temperature 60-90°C, the highest performance of 2.04 W is gained using Nation membrane, while at 40% humidity and 60-90°C yielded maximum power performance of 2.66W for membrane NSI5W. The result of data analysis and optimized polarization curve model shows that the mechanism of proton movement in the Nafion membrane followed the vehicular model, where as in the composite membrane is close to the proton hopping model. The performance of the composite membrane Nafion-Si02-PWA is stable at low humidity operating at temperature 60-90°C. Since the humidity and operating temperature are low, the PEMFC using the nanocornposite membrane can be run with lower humidity and with higher power compared to a PEMFC using the pure Nation membrane. Keyword: PEMFC, nanokomposit, kondensasi kapiler, konduktivitas.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: PEMFC, nanokomposit, kondensasi kapiler, konduktivitas
Subjects: Q Science > QD Chemistry
Date Deposited: 11 Sep 2017 02:02
Last Modified: 11 Sep 2017 02:02

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