Analisis Pengaruh Variasi Tekanan Hot Press Decal Transfer Terhadap Morfologi Membrane Electrode Assembly Dan Performa Elektrokimia Pem Fuel Cell

Rachman, Berlian Aulia (2021) Analisis Pengaruh Variasi Tekanan Hot Press Decal Transfer Terhadap Morfologi Membrane Electrode Assembly Dan Performa Elektrokimia Pem Fuel Cell. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Saat ini, bahan bakar fosil yang memenuhi 80% kebutuhan energi dunia memiliki keterbatasan dan cepat atau lambat akan habis. Proton Exchange Membrane Fuel Cell (PEMFC) dapat menjadi solusi untuk masalah ini karena efisiensinya yang tinggi dan ramah lingkungan. Namun terdapat beberapa kendala, seperti kinerja, daya tahan, dan efektivitas biaya, sehingga pengembangan Membrane Electrode Assemblies (MEA) yang merupakan tempat terjadinya reaksi elektrokimia harus dioptimalkan. Tujuan dari penelitian ini adalah menganalisis pengaruh perubahan tekanan hot press terhadap morfologi dan kinerja elektrokimia fuel cell selama proses transfer decal. Metode yang digunakan pada penelitian ini adalah fabrikasi MEA dengan variasi tekanan hot press 5, 6, dan 7 MPa. Berdasarkan hasil SEM didapatkan bahwa pengaruh tekanan terhadap morfologi adalah porositas terus menurun linier dengan penambahan tekanan hot press. Morfologi yang terbentuk untuk sampel 5, 6, dan 7 MPa yaitu berupa struktur karbon tipikal yang terdiri dari partikel karbon primer yang teraglomerasi dengan diameter 58-61 nm, dan pori-pori yang terdistribusi secara acak. Berdasarkan hasil pengujian performa elektrokimia didapatkan bahwa fuel cell dengan variasi tekanan 6 MPa merupakan sampel yang memiliki performa paling baik diantara variasi lainnya yaitu memiliki power density sebesar 8,21 mW/cm2 dan RTotal yang terkecil sebesar 101,5 ohm. ================================================================================================== Currently, the fossil fuels that meet 80% of the world's energy needs have limitations and will eventually run out. Proton Exchange Membrane Fuel Cell (PEMFC) can be a solution to this problem because of its high efficiency and environmental friendliness. However, there are several obstacles, such as performance, durability, and cost-effectiveness, so the development of Membrane Electrode Assemblies (MEA) which is the place where electrochemical reactions occur must be optimized. The purpose of this study was to analyze the effect of changes in hot press pressure on the morphology and electrochemical performance of fuel cells during the decal transfer process. The method used in this study is MEA fabrication with variations in hot press pressure of 5, 6, and 7 MPa. Based on the SEM results, it was found that the effect of pressure on morphology was that the porosity continued to decrease linearly with the addition of hot press pressure. The morphology formed for samples 5, 6, and 7 MPa is a typical carbon structure consisting of agglomerated primary carbon particles with a diameter of 58-61 nm, and pores that are randomly distributed. Based on the results of electrochemical performance testing, it was found that the fuel cell with a pressure variation of 6 MPa is the sample that has the xbest performance among other variations, which has a power density of 8.21 mW/cm2 and the smallest RTotal of 101.5 ohms.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Fuel Cell, MEA, Decal transfer, Hot press, Porositas
Subjects: T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Berlian Aulia Rachman
Date Deposited: 12 Aug 2021 03:23
Last Modified: 12 Aug 2021 03:23
URI: https://repository.its.ac.id/id/eprint/85636

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