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Electrodeposition of zinc antimony alloy thermoelectric materials

Nor Hairin, Assayidatul Laila and Romainor, M. N. and Othman, Raihan and Mohd Daud, Farah Diana (2018) Electrodeposition of zinc antimony alloy thermoelectric materials. In: "International Conference on Advances in Manufacturing and Materials Engineering 2017, ICAMME 2017", 8-9 August 2017, International Islamic University Malaysia (IIUM), Gombak Campus, Kuala Lumpur.

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Abstract

Zinc antimonite, Zn4Sb3 is a promising thermoelectric material because of its high thermoelectric performance and abundance of Zn and Sb in nature. Thus, in this study, samples of Zn-Sb alloy were prepared using electrodeposition method because of its simple experimental set-up, which also carried out in the room temperature. From the XRD results, all samples deposited exhibit Zn-Sb alloy compositions. The best results were S1 and S3 as they had dominant peaks that showed the crystal lattice of Zn4Sb3. From the SEM images, the surface morphology of Zn-Sb alloy deposited samples showed were all-irregular, course and rough structures. While, the atoms arrangement of the deposited samples were all flowery-like. Based on physical properties characterization, the best samples; S1 (0.1M ZnCl2-0.1M SbCl3, 100mA, 120min) and S3 (0.1M ZnCl2-0.1M SbCl3, 50mA, 120min), were selected and investigated their thermoelectric performances; electrical conductivity and Seebeck coefficient, to determine their power factor, PF. Heat capacity of the samples was also examined to relate it with thermal conductivity of Zn-Sb deposited samples. For thermoelectric performance, S1 obtained power factor of 1.37x10-7V/K. Ω.cm at 102°C with the Seebeck coefficient of 181μV/K. While as for S3, the power factor was 1.58x10-7V/K. Ω.cm with Seebeck coefficient of 113μV/K at 101°C. From DSC analysis, it showed that S3 obtained higher Cp than S1. Cp for S3 was 46.8093mJ/°C while S1 was 38.3722mJ/°C.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 7683/64397
Uncontrolled Keywords: Electrodeposition; Antimony alloy thermoelectric materials
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2000 Dynamoelectric machinery
T Technology > TS Manufactures
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Raihan Othman
Date Deposited: 25 Jun 2018 10:05
Last Modified: 25 Jun 2018 10:05
URI: http://irep.iium.edu.my/id/eprint/64397

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