Maretza, Achmad Daffa Rifqi (2024) Analisis Pengaruh Daya Microwave dan Metode Radiasi terhadap Struktur Material dan Performa Elektrokimia Katalis Pt/rGO-CB untuk Aplikasi PEMFC. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Proton Exchange Membrane Fuel Cell (PEMFC) merupakan salah satu teknologi menjanjikan sebagai sumber energi bersih yang memiliki nilai efisiensi konversi energi yang baik. Meskipun sudah mampu menembus komersialisasi, masih terdapat banyak permasalahan terkait ketersediaan dan performa yang belum optimal. Performa dari PEMFC sendiri sangat dipengaruhi oleh laju kinetika reaksi di elektroda sehingga tren penelitian terkait elektokatalis untuk meningkatkan kinetika reaksi sekaligus kinerja PEMFC terus berjalan. Penelitian ini berfokus pada pengaruh daya microwave dan metode radiasi terhadap struktur material dan performa elektrokimia katalis Pt/rGO-CB untuk pengoptimalan pemanfaatan katalis Pt dengan penyangga hibrida berupa komposit reduced graphene oxide dan carbon black (rGO-CB) pada PEMFC. Sintesis katalis Pt/rGO-CB dilakukan dengan metode microwave irradiation dengan daya microwave yang diaplikasikan yakni 300 W, 450 W, dan 600 W serta variasi metode radiasi yang digunakan yakni continuous dan pulse. Proses sintesis katalis Pt/rGO-CB menunjukkan keberhasilan dalam proses reduksi nanopartikel Pt pada carbon support maupun proses reduksi Graphene Oxide (GO) menjadi Reduced Graphene Oxide (rGO) hal ini dibuktikan dengan keberadaan Pt (111) pada 2θ 39° di katalis Pt/rGO-CB hasil sintesis melalui hasil pengujian X-Ray Diffraction yang telah dilakukan. Sekaligus menghilangnya intesitas Graphene Oxide (GO) pada 2θ 11° dan keberadaan peak amorf C (002) pada 2θ 24°-26° dipengujian yang sama. Katalis Pt/rGO-CB dengan metode radiasi pulse pada variasi daya 300W menunjukkan performa paling menjanjikan dengan nilai Electrochemical Surface Area (ECSA) sebesar 49,7 m2/gpt dengan stabilitas yang baik pada pengujian Cyclic Voltammetry. Hasil positif ini juga direpresentasikan melalui hasil pengujian performa single cell dengan nilai power density maksimal sebesar 277,06 mW cm-2.
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Proton Exchange Membrane Fuel Cell (PEMFC) is one of the promising technologies as a clean energy source that has a good energy conversion efficiency value. Although it has been able to penetrate commercialization, there are still many problems related to availability and performance that are not optimal. The performance of PEMFC itself is strongly influenced by the rate of reaction kinetics at the electrode so that the research trend related to electocatalysts to improve reaction kinetics as well as PEMFC performance continues. This research focuses on the effect of microwave power and radiation method on the material structure and electrochemical performance of Pt/rGO-CB catalyst to optimize the utilization of Pt catalyst with hybrid buffer in the form of reduced graphene oxide and carbon black (rGO-CB) composite in PEMFC. The synthesis of Pt/rGO-CB catalyst was carried out by microwave irradiation method with the applied microwave power of 300 W, 450 W, and 600 W and the variation of radiation method used, namely continuous and pulse. The synthesis process of Pt/rGO-CB catalyst shows success in the process of reducing Pt nanoparticles on carbon support and the process of reducing Graphene Oxide (GO) to Reduced Graphene Oxide (rGO), this is evidenced by the presence of Pt (111) at 2θ 39° in the synthesized Pt/rGO-CB catalyst through the results of X-Ray Diffraction testing that has been carried out. As well as the disappearance of Graphene Oxide (GO) intensity at 2θ 11° and the presence of amorphous peak C (002) at 2θ 24°-26° in the same test. Pt/rGO-CB catalyst with pulse radiation method at 300W power variation showed the most promising performance with Electrochemical Surface Area (ECSA) value of 49.7 m2/gpt with good stability in Cyclic Voltammetry test. These positive results are also represented through the results of single cell performance testing with a maximum power density value of 277.06 mW cm-2.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Electrocatalyst, rGO-CB Composite, Microwave, Pt Nanoparticles, PEMFC, Elektrokatalis, Komposit rGO-CB, Microwave, Nanopartikel Pt, PEMFC |
| Subjects: | Q Science > QD Chemistry > QD569 Electrocatalysis. T Technology > TA Engineering (General). Civil engineering (General) > TA455.G65 Graphene 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: | Achmad Daffa Rifqi Maretza |
| Date Deposited: | 06 Aug 2024 06:49 |
| Last Modified: | 06 Aug 2024 06:49 |
| URI: | http://repository.its.ac.id/id/eprint/111825 |
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