Preparation and Characterization Composite Activated Carbon of Peanut Shell (Arachis hypogaea L.) - Copper (II) Oxide (CuO) As a Thermoelectric Material.

Wanda, Yolla Rama (2021) Preparation and Characterization Composite Activated Carbon of Peanut Shell (Arachis hypogaea L.) - Copper (II) Oxide (CuO) As a Thermoelectric Material. Skripsi thesis, Universitas Negeri Padang.

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Abstract

The need for electrical energy continues to increase. Therefore, it is necessary to find alternatives to produce renewable electrical energy, one of which is using thermoelectric materials. Thermoelectric materials are materials that can be used to convert heat energy into electrical energy. In this study, the thermoelectric material was made from a composite of activated carbon peanut shell (Arachis hypogaea L.)-Cua. Activated carbon-Cua composite material is made by mixing various mass composition ratios (grams). Composite materials are tested for electrical conductivity, thermal conductivity and the resulting electrical voltage (Seebeck effect). To see the shape and crystal size of the composite material, characterization was carried out using X-Ray Diffraction (XRD) and to determine the band gap of the composite material, characterization was carried out using UV-Diffuse Reflectance (UV-DRS). The test results show that the composite material with a ratio of 3 grams of activated carbon : 7 grams of Cua is the best material as a thermoelectric material because it has a high electrical conductivity value of 2.375 Mfr. cm- and a heat conductivity of 10.85 J/s and electrical voltage (seebeck effect) which is high 11.89 x 10-3 mV/K. The results of characterization using XRD showed that the addition of activated carbon to Cua did not damage the crystal form of Cua and the crystal size (D) and crystal lattice (d) of the composite material, namely 27.4320 nm and 0.2322 nm. The results of UV-DRS characterization showed that the band gap of the composite material was 1.23 eV. Based on the test results and characterization, it can be concluded that the activated carbon-Cua composite material can be used as a thermoelectric material.

Item Type: Thesis (Skripsi)
Subjects: Q Science > QD Chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia - S1
Depositing User: Sri Yulianti, S.IP
Date Deposited: 29 Sep 2021 04:07
Last Modified: 29 Sep 2021 04:07
URI: http://repository.unp.ac.id/id/eprint/34194

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