Analisis Performa Produksi Arus dan Hidrogen oleh Fotoanoda CsPbBr3 dalam Glucose Fuel Cell

Krisnanto, Widyanto Ikhsan (2023) Analisis Performa Produksi Arus dan Hidrogen oleh Fotoanoda CsPbBr3 dalam Glucose Fuel Cell. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Photoelectrochemical (PEC) untuk memecah air atau yang biasa dikenal water splitting adalah salah satu teknologi dengan menggunakan material semikonduktor untuk memecah air menjadi hidrogen dan oksigen dengan energi sinar matahari. Proses water splitting sangat sulit terjadi, maka perlu potensial yang cukup untuk mendorong reaksi pada laju tertentu. Glucose fuel cell dapat menjadi solusi karena membutuhkan energi yang lebih kecil daripada oksidasi air. Perovskite dengan struktur CsPbBr3 memiliki celah pita energi 2,3 eV yang menjadikan perovskite memiliki kemampuan sebagai material untuk menyerap energi pada sinar matahari. Heat treatment dapat berperan dalam pembentukan struktur perovskite yang mana akan berpengaruh terhadap performa perovskite. Dalam proses penelitian dikaji mengenai pengaruh heat treatment terhadap CsPbBr3 dan performa dalam produksi arus dan hidrogen. Penelitian dilakukan dengan pengujian X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Cyclic Voltammetry (CV), Linear Sweep Voltammetry (LSV), dan Gas Chromatography (GC). Berdasarkan hasil penelitian yang telah dilakukan, kenaikan heat treatment CsPbBr3 hingga temperatur 110 ⁰C mengindikasikan kestabilan perovskite CsPbBr3 namun menyebabkan material CsPbBr3 mengalami kenaikan ukuran kristal hingga 108,79 nm. Performa produksi arus dan hidrogen dari CsPbBr3 dengan temperatur ruangan menunjukkan hasil yang paling optimal pada variasi temperatur ruangan dan elektrolit KOH glukosa 0,3 M dengan nilai onset potential -0,718 V. Hasil tersebut mampu memberikan current density yang baik pula sebesar 0,894 mA/cm2. Validasi terbentuknya hidrogen dilakukan dengan pengujian gas chromatography dengan variasi temperatur ruangan dan titik tengah konsentrasi yaitu 0,2 M glukosa. Didapatkan peak yang menandakan hidrogen memiliki persentase area sebesar 64,61 %. Berdasarkan presentase area yang terbentuk lalu dilakukan kuantifikasi produk hidrogen yang terbentuk selama reaksi, mendapatkan produk hidrogen 1,292 μl. Pada pengujian yang telah dilakukan, dalam 10 ml sampel yang diambil di sekitar katoda maka hasil produk hidrogen yang terbentuk adalah 6,46 ml. ================================================================================================================================
Photoelectrochemical (PEC) to split water or commonly known as water splitting is one of the technologies using semiconductor materials to split water into hydrogen and oxygen with the energy of sunlight. The process of water splitting is very difficult to occur, so it needs sufficient potential to drive the reaction at a certain rate. Glucose fuel cell can be a solution because it requires less energy than water oxidation. Perovskite with the CsPbBr3 structure has an energy band gap of 2.3 eV which makes perovskite have the ability as a material to absorb energy in sunlight. Heat treatment can play a role in the formation of perovskite structures which will affect perovskite performance. In the research process studied the effect of heat treatment on CsPbBr3 and performance in current and hydrogen production. The research was conducted by testing X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Cyclic Voltammetry (CV), Linear Sweep Voltammetry (LSV), and Gas Chromatography (GC). Based on the results of the research that has been done, an increase in the heat treatment of CsPbBr3 to a temperature of 110 ⁰C indicates the stability of CsPbBr3 perovskite but causes the CsPbBr3 material to increase in crystal size up to 108.79 nm. Current and hydrogen production performance from CsPbBr3 at room temperature showed the most optimal results at room temperature variations and 0.3 M glucose KOH electrolyte with an onset potential value of -0.718 V. These results were able to provide a good current density of 0.894 mA/cm2. Validation of hydrogen formation was carried out by gas chromatography testing with room temperature variations and a midpoint concentration 0.2 M glucose. A peak was obtained which indicated that hydrogen had an area percentage of 64.61%. Based on the percentage of area formed, quantification of the hydrogen product formed during the reaction was carried out to obtain a hydrogen product of 1.292 μl. In the tests that have been carried out, in 10 ml of samples taken around the cathode, the resulting hydrogen product formed is 6.46 ml.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Fotoanoda, Fotoelektrokimia, Heat Treatment, Hidrogen, Perovskite, Heat Treatment, Hydrogen, Perovskite, Photoanode, Photoelectrochemical.
Subjects:	Q Science > QD Chemistry > QD115 Electrochemical analysis T Technology > TD Environmental technology. Sanitary engineering > TD195.B56 Biomass energy T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. T Technology > TJ Mechanical engineering and machinery > TJ810.5 Solar energy
Divisions:	Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Widyanto Ikhsan Krisnanto
Date Deposited:	26 Jul 2023 03:42
Last Modified:	26 Jul 2023 03:42
URI:	http://repository.its.ac.id/id/eprint/99445

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