Mahreni, Mahreni and Abu Bakar, Muhammad and Wan Ramli, Wan Daud and Abdul Amir, Hasan Khadum (2006) PERFORMANCE IMPROVEMENT OF PROTON EXCHANGE MEMBRANE FUEL CELL USING SOL-GEL CASTING TECHNIQUE. In: Seminar Nasional Kejuangan Teknik Kimia 2006, 07 Februari, Yogyakarta.
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Abstract
PERFORMANCE IMPROVEMENT OF PROTON EXCHANGE MEMBRANE FUEL CELL USING SOL-GEL CASTING TECHNIQUE Mahreni Akhmad, Abu Bakar Muhamad, Abdul Amir H. Kadhum,Wan Ramli Wan Daud Department of Chemical & Process Engineering, Faculty of Engineering, Universiti Kebangsaan Malaysia Email: mahreni@vlsi.eng.ulan.my Abstract The sol-gel casting techniqu has been used for (he fabrication of membrane electrode assemblies . (MEA) as a means for better distribution of metal catalyst. such as Pt, residing on the membrane surfaee. This in itself will nraM the catalyst used to be more efficient. The precursor contained Tetra Ethoxy Onbo Silicate (TEOS) as the silica source and Phosphotungsticacid (PWA) as the proton conductive material. The electrolyte me.nbrane, Nofion JJ2 was Impregnated with the precursor solution containing PWA and TEOS before its coated with the catalyst ink to produce the electrodes. The electrodes were fused with the gas diffusion layers (GDL) by hot press a! 12Cf'C and pressure 30 atm for 4 minutes to produce the membrane electrode assembly (MEA). Catalyst loading on the membrane surface varies from 0.38 until 0.475 mg/cm1. Characterization of the membrane Electrode Assemblies (MEA) conducted by fuel cell test system. Comparatton sol-gel MEA to the commercial MEA a! the same operation condition but lower catalyst loading in anode/cathode (0.411 mg/cm1 for commercial MEA) and (0.4310.43 mg/cm1 for sol-gel MEA) show a better performance. The result of the experiment show sol-gel MEA produce more high current and voltage along test time during 12 hours. and show stability of current and voltage during 30 hours test time at ambient temperature. So thai could to be concluded that sol-gel process is applicable for membrane electrode assemblies. and have advantages improve performance of proton exchange membrane fuel cell (PEMFC). Keyword: heteropolyacid; sol-gel, naflon, PEMFC
| Item Type: | Conference or Workshop Item (Paper) |
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| Subjects: | T Technology > TP Chemical technology T Technology > TS Manufactures |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | MAHRENI MAHRENI MAHRENI |
| Date Deposited: | 15 Oct 2017 13:20 |
| Last Modified: | 15 Oct 2017 13:20 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/13295 |
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