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Preparation and Characterisations of NiYSZ-based Anode for Syngas and Biogas Fueled SOFC
L. Troskialina(1*), Riniati(1), R. Indarti(1), D. Gustaman(2) , D. Mansur(3)

1) Dept. of Chemical Engineering, Politeknik Negeri Bandung, Bandung 40012, Indonesia
2) National Nuclear Agency of Indonesia, Jalan Tamansari No.71, Bandung 40132, Indonesia
3) Research Center for Chemistry, Indonesian Institute of Sciences, Serpong 15314, Indonesia


Abstract

Solid Oxide Fuel Cells (SOFCs) offer their ability to directly convert biogas into electricity via internal dry reforming. At POLBAN NiYSZ-based SOFC anodes were manufactured via aqueous tape casting. Raw materials such as NiO and yttria stabilised ZrO2 powders, glycerol, polyvinyl alcohol (PVA) and water were weighed and mixed. The obtained slurry was ball milled, de-gassed, tape-cast, and dried. The good green tapes were then sintered at 1200˚C. The sintered tapes were characterized for the electrical conductivity at 600-800oC, morphology and composition using SEM/EDX, and hardness using Vickers hardness tester. The resulted morphology and composition of the anode tapes were comparable with those of the reference anode tape, with pore sizes ranging from 100ɳm-1μm and 28% porosity (pore volume). The tapes- hardness after sintering were in the range of 170,3 HV and 212.2 HV. Under reduced condition, their conductivities were 0.0981 Siemens and 0.5291 Siemens at 750oC and 800oC respectively. The successful attempts to make NiYSZ-based SOFC anodes using locally available materials and equipment are promising as the initial steps for further development of SOFC manufacturing in Indonesia. The next steps to do in this work are to evaluate the catalytic activities of the anode towards dry reforming, then to build the full SOFCs and to test their electrochemical performance.

Keywords: solid oxide fuel cells; Ni-YSZ anodes; aqueous tape casting

Topic: Chemical Engineering

Link: https://ifory.id/abstract/nfMd29mUWReT

Conference: The Third International Conference on Innovation in Engineering and Vocational Education (ICIEVE 2019)

Plain Format | Corresponding Author (Lina Troskialina)

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