SYNTHESIS OF NAFION-SiO2 MEMBRANE NANOCOMPOSITE USING SOL-GEL METHOD
| Main Author: | ., Mahreni; Jurusan Teknik Kimia, FTI-UPN Veteran Yoyakarta Jl. SWK 104 Condong Catur, Yogyakarta 55283 |
|---|---|
| Other Authors: | UPN - Universitas Pembangunan Nasional Veteran |
| Format: | Article application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
BATAN
, 2013
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| Online Access: |
http://jurnal.batan.go.id/index.php/jsmi/article/view/1052 |
Daftar Isi:
- In this research, the activity to produce Nafion-SiO2 composite membranes has been done by dispersion and sol-gel methods. Parameters under consideration are weight ratio of SiO2/Nafion, the solvent kind and its effect to physico-chemical properties of the composite membrane. The dispersion method was done by mixing 5 % Nafion solution with SiO2 particles, while the sol-gel method was conducted by mixing 5 % Nafion with Tetraethoxyorthosilicate (TEOS) solution as a source of SiO2 then heated at 80 °C to 120 °C for 6 hours to produce a 70 μm thick membrane film. The physico-chemical and electrochemical characterization are performed to identify its microstructure and chemical structure using a Scanning Electron Microscope-Energy Dispersive X-Ray Spectroscopy (SEM-EDAX) and Fourier Transform - Infra Red (FT-IR) Spectroscopy respectively. The result showed that the composite membranes produced using sol-gel method have homogenous structure, in which Si component bound to Nafion polymer matrix. It can be concluded that the sol-gel method is successfully applied to produce a homogeneous Nafion-SiO2 composite membrane, which can be expected to habe a better characteristic than the pure Nafion and may substitute the Nafion membrane as proton exchange membrane fuel cell.Keywords: Nanocomposite, Nafion-SiO2, PEMFC, Sol-Gel, Dispersion.