Preparation and Characterization of sPEEK-PVA Composite Membranes with Graphene Oxide as filler for Direct Methanol Fuel Cells
| Main Authors: | Nastiti, Elisa Putri, Hidayati, Nur |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta
, 2020
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| Subjects: | |
| Online Access: |
http://jurnal.upnyk.ac.id/index.php/eksergi/article/view/3729 http://jurnal.upnyk.ac.id/index.php/eksergi/article/view/3729/pdf |
Daftar Isi:
- Direct Methanol Fuel Cell (DMFC) is a fuel cell technology that convert chemical energy into electrical energy directly. Sulfonated polyether ether ketones (sPEEK) have potential as proton exchange membranes. Modification of sPEEK with poly vinyl alcohol (PVA) and adding graphene oxide (GO) is expected to reduce methanol cross over. This study was designed to examine the characteristics of the sPEEK-PVA composite membrane using the independent variable variation of GO 2.5-10% w/w. The results showed that water uptake in the range of 20-33%, swelling degree in the range of 10-17.5%, the ion exchange capacity was 0.59-0.75 meq/g, and the methanol permeability was 2.82-4.2 x10-6 cm2 /s. The characters shown are comparable with Nafion's characters and have the potential to be developed because they are superior in terms of raw material prices
- Direct Methanol fuel Cell (DMFC) merupakan teknologi sel bahan bakar yang mengubah energi kimia menjadi energi listrik secara langsung. Polieter eter keton tersulfonasi (sPEEK) berpotensi sebagai proton exchange membrane. Modifikasi sPEEK dengan poli vinil alkohol (PVA) dan penambahan grafena oksida (GO) diharapkan dapat mengurangi methanol cross over. Penelitian dirancang untuk mengkaji karakteristik membran komposit sPEEK-PVA dengan menggunakan variabel bebas variasi GO 2,5-10% w/w. Hasil pengujian menunjukkan water uptake pada rentang 20-33% swelling degree pada rentang 10-17.5%,, kapasitas penukar ion sebesar 0.59-0.75 meq/g, dan permeabilitas metanol sebesar 2.82 – 4.2 x10-6cm2/s. Karakter yang ditunjukkan sepadan dengan karakter Nafion dan berpotensi untuk dikembangkan karena lebih unggul dalam hal harga bahan bakunya.