Pengaruh Waktu Pelapisan Elektroda Aisi 316 Dengan Graphene Menggunakan Metode Electrophoretic Deposition Untuk Penurunan Wettability

Januaristi, Leony (2025) Pengaruh Waktu Pelapisan Elektroda Aisi 316 Dengan Graphene Menggunakan Metode Electrophoretic Deposition Untuk Penurunan Wettability. S1 thesis, Universitas Andalas.

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Abstract

The research aims to test the effect of variations in the process time of coating the AISI 316 electrode with graphene using the Electrophoretic Deposition (EPD) method on the wettability of the hydrogen separator. Coating with graphene using the EPD method is expected to reduce wettability or the surface's ability to attract or repel liquids, which is an importantfactor in electrode design. Optimal electrode wettability can facilitate efficient proton and electron transfer, which makes a major contribution to the overall performance of hydrogen separation devices. The research methods used include AISI 316 specimen preparation, cleaning with an magnetic stirrer, coating with the EPD method, observation, measuring the thickness of the graphene layer, and measuring the contact angle ofwater droplets on the surface. Variations in coating time tested were 20, 30, and 40 minutes at a voltage of 20 volts. The research results show that changing the coating time using the EPD method has a significant effect on the structure and wettability of the graphene layer formed. With a deep understanding of how time variations in the graphene coating process affect electrode wettability, electrode designs for hydrogen separation devices can be improved with the goal of increasing overall device efficiency and performance. It is hoped that this research can contribute to the development of more efficient and sustainable hydrogen separation technology. Based on the tests that have been carried out, the highest contact angle was obtained at a coating time of 40 minutes with a voltage of 20 volts and the highest layer thickness was also found at a coating time of 40 minutes with a voltage of 20 bot NTUK BANGS Keywords: AISI 316, EPD, elektroda, graphene, hidrogen, wettability

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