Paramita, Adhe (2025) Fabrikasi dan Karakterisasi Membrane Electrode Assembly (MEA) Loading Katalis Pt/C Terhadap Nafion212 dengan Metode Catalyst Coated Membrane (CCM) Spraying. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Hidrogen merupakan sumber energi berjejak karbon nol dengan densitas energi tinggi. Salah satu teknologi yang memanfaatkannya adalah Proton Exchange Membrane Fuel Cell (PEMFC), dengan Membrane Electrode Assembly (MEA) sebagai komponen kunci. Penelitian ini bertujuan memfabrikasi MEA menggunakan teknik Catalyst Coated Membrane (CCM) dengan airbrush spray dan ultrasonic spray, serta membandingkan kinerjanya menggunakan katalis Pt/C dengan 20 wt% Pt pada karbon aktif CNT dan karbon aktif dari limbah kulit pisang kepok (soft carbon). Karbon aktif kulit pisang dipilih karena sifatnya yang berpori tinggi dan proses karbonisasi suhu <800°C untuk menekan biaya. Aktivator NaOH (0,1 M dan 1 M) digunakan dengan waktu aktivasi 1 dan 3 jam. Analisis BET menunjukkan luas permukaan karbon aktif 1M3H sebesar 163,075 m²/g, lebih tinggi dibandingkan CNT (101,466 m²/g). Katalis Pt/C disintesis dengan variasi rasio CA:CNT (1:0=1M3H-1, 1:1=1M3H-11, dan 0:1= CNT1). Sampel CA 1M3H-1 memiliki kadar Pt tertinggi (52,99 wt%). Uji performa MEA dilakukan pada modul single fuel cell. Teknik ultrasonic spray menghasilkan distribusi katalis lebih merata, mengurangi hambatan penetrasi hidrogen, dan mempercepat pembacaan densitas arus dalam 1 menit, dibandingkan airbrush spray (2 menit 30 detik). Puncak power density pada ultrasonic spray mencapai 0,167 mW/cm² (1M3H-1), sedangkan airbrush spray mencapai 0,889 mW/cm² (CNT1) dengan waktu lebih lama. Penggunaan ultrasonic spray meningkatkan efisiensi distribusi katalis pada MEA.
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Hydrogen is a zero-carbon energy source with high energy density. One of the technologies utilizing hydrogen is the Proton Exchange Membrane Fuel Cell (PEMFC), with the Membrane Electrode Assembly (MEA) as a key component. This study aims to fabricate MEA using the Catalyst Coated Membrane (CCM) technique with airbrush spray and ultrasonic spray, as well as to compare their performance using Pt/C catalyst with 20 wt% Pt on CNT-based activated carbon and activated carbon derived from kepok banana peel waste (soft carbon). Banana peel-derived activated carbon was chosen for its high porosity and carbonization process at temperatures below 800°C to reduce production costs. NaOH activator (0.1 M and 1 M) was employed with activation times of 1 and 3 hours. BET analysis revealed that the surface area of activated carbon 1M3H was 163.075 m²/g, higher than CNT (101.466 m²/g). Pt/C catalysts were synthesized with CA:CNT ratios of 1:0 (1M3H-1), 1:1 (1M3H-11), and 0:1 (CNT1). The CA 1M3H-1 sample exhibited the highest Pt content (52.99 wt%). MEA performance was tested on a single fuel cell module. The ultrasonic spray technique produced a more uniform catalyst distribution, reducing hydrogen penetration resistance and enabling current density readings within 1 minute, compared to 2 minutes and 30 seconds with airbrush spray. The peak power density for ultrasonic spray was 0.167 mW/cm² (1M3H-1), while airbrush spray reached 0.889 mW/cm² (CNT1) but required more time. The use of ultrasonic spray improved the catalyst distribution efficiency in MEA.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | banana peel active carbon, MEA, Pt/C, PEMFC, spray, karbon aktif kulit pisang, MEA, Pt/C, PEMFC, Spray |
| Subjects: | Q Science T Technology > TP Chemical technology T Technology > TP Chemical technology > TP1175.S6 Spraying Coating with plastics T Technology > TP Chemical technology > TP155.5 Chemical plants--Design and construction T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP159.M4 Membranes (Technology) T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles. T Technology > TP Chemical technology > TP994 Surface active agents. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Chemical Engineering > 24101-(S2) Master Thesis |
| Depositing User: | Adhe Paramita |
| Date Deposited: | 02 Feb 2025 14:15 |
| Last Modified: | 02 Feb 2025 14:16 |
| URI: | http://repository.its.ac.id/id/eprint/117303 |
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