Pembuatan dan Karakterisasi Membran Komposit sPEEK-PVA dengan Bahan Isian Grafena Oksida untuk Sel Bahan Bakar Methanol

Elisa Putri Nastiti, Nur Hidayati

Sari


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.

Kata Kunci


DMFC; membran komposit; sPEEK,PVA; Grafena Oksida

Teks Lengkap:

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Referensi


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DOI: https://doi.org/10.31315/e.v17i2.3729

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Eksergi ISSN-p  1410-394X, ISSN-e 2460-8203 diterbitkan oleh Prodi Teknik Kimia Universitas Pembangunan Nasional "Veteran" Yogyakarta.

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