Analisis Pengaruh Variasi Komposisi Membran SPEEK/SPS/SGO terhadap Performa Proton Exchange Membrane Fuel Cell

Nugraha, Ahmad Fath Aziz (2023) Analisis Pengaruh Variasi Komposisi Membran SPEEK/SPS/SGO terhadap Performa Proton Exchange Membrane Fuel Cell. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Fuel cell merupakan salah satu alat konversi energi dengan bahan bakar alternatif terbaharukan yang sekarang sedang dikembangkan untuk menggantikan bahan bakar konvensional seperti minyak bumi dan batu bara. PEMFC merupakan salah sel satu fuel cell yang menggunakan bahan bakar hidrogen dan fuel cell yang sangat sering digunakan pada industri. Komponen PEMFC yang menjadi fokus dari penelitian pada tugas akhir ini merupakan komponen membran. Nafion adalah material komersil yang digunakan untuk dijadikan membran, tetapi Nafion memiliki kekurangan yaitu memiliki harga yang tinggi dan juga kurang stabilnya performa membrane pada kelembapan rendah dan temperatur yang tinggi maka dari itu dibutuhkannya material pengganti Nafion Pilihan material yang digunakan pada penelitian ini merupakan komposit polimer SPEEK-SPS-SGO. SPEEK dipilih dikarenakan harganya yang rendah, sifat konduktivitas dan stabilitas termal yang baik. SPS dipilih karena memiliki struktur material berongga dan dapat meningkatkan konduktivitas dari SPEEK masih jauh dibawah Nafion. SGO dipilih karena dibutuhkannya material untuk meningkatkan kembali proton conductivity dan meningkatkan kekuatan mekanik dari SPEEK/SPS. Pengujian karakterisasi yang dilakukan adalah FTIR, XRD, SEM, EIS, water uptake, IEC, TGA, uji tarik dan single cell test. Setelah dilaksanakannya penelitian didapatkan hasil water uptake, ion exchange capacity, dan swelling ratio paling tinggi ada pada variasi SPEEK 9.5/SPS 0.25/SGO 0.25 dengan nilai 58.74%, 3.162 meq/g, 20%. Untuk pengujian EIS, sampel yang memiliki konduktivitas tertinggi ada pada sampel variasi SPEEK 9/SPS 0.75/SGO 0.5 dengan nilai 1.62 x 10-4 S/cm. Hasil Single Cell Test didapatkan OCV 0.7 V dan maksimum power density yaitu 9.1 mW/cm2.
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Fuel cells are one of the energy conversion tools with renewable alternative fuels which are currently being developed to replace conventional fuels such as petroleum and coal. PEMFC is a fuel cell that uses hydrogen fuel and is a fuel cell that is very often used in industry. The PEMFC component which is the focus of research in this final project is a membrane component. Nafion is a commercial material that is used to make membranes, but Nafion has drawbacks, namely having a high price and also the lack of stability of membrane performance at low humidity and high temperatures, therefore a replacement material for Nafion is needed. The choice of material used in this study is SPEEK polymer composite. -SPS-SGO. SPEEK was chosen because of its low price, good conductivity and thermal stability. SPS was chosen because it has a hollow material structure and can increase the conductivity of SPEEK which is still far below Nafion. SGO was chosen because of the need for material to increase proton conductivity and increase the mechanical strength of SPEEK/SPS. The characterization tests carried out were FTIR, XRD, SEM, EIS, water uptake, IEC, TGA, tensile test and single cell test. After conducting the research, it was found that the highest water uptake, ion exchange capacity, and swelling ratio were in the SPEEK 9.5/SPS 0.25/SGO 0.25 variation with a value of 58.74%, 3.162 meq/g, 20%. For the EIS test, the sample with the highest conductivity was the SPEEK 9/SPS 0.75/SGO 0.5 variation sample with a value of 1.62 x 10-4 S/cm. The results of the Single Cell Test obtained an OCV of 0.7 V and a maximum power density of 9.1 mW/cm2.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Proton exchange membrane fuel cell, Sulfonated graphene oxide, Sulfonated poly(ether ether ketone), Sulfonated polystyrene, Proton exchange membrane fuel cell, Sulfonated graphene oxide, Sulfonated poly(ether ether ketone), Sulfonated polystyrene
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2931 Fuel cells
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Ahmad Fath Aziz Nugraha
Date Deposited:	27 Jul 2023 05:59
Last Modified:	27 Jul 2023 05:59
URI:	http://repository.its.ac.id/id/eprint/99548

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