Low Nickel, Ceria Zirconia-Based Micro-Tubular Solid Oxide Fuel Cell: A Study of Composition and Oxidation Using Hydrogen and Methane Fuel

Hazrul Adzfar Shabri, Siti Norlaila Faeizah Mohd Rudin, Shahirah Deraman, Mazlinda Ab Rahman, Mohd Hafiz Dzarfan Othman, Siti Munira Jamil, Tonni Agustiono Kurniawan, Tao Li, Suriani Abu Bakar, Nafisah Osman, Juhana Jaafar, Mukhlis A Rahman and Ahmad Fauzi Ismail
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Hazrul Adzfar Shabri: Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Siti Norlaila Faeizah Mohd Rudin: Process System Engineering Center (PROSPECT), Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Shahirah Deraman: Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Mazlinda Ab Rahman: Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Mohd Hafiz Dzarfan Othman: Department of Energy Engineering, School of Chemical and Energy Engineering (FCEE), Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Siti Munira Jamil: School of Professional and Continuing Education (SPACE), Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Tonni Agustiono Kurniawan: Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, College of Environment and Ecology, Xiamen University, Xiamen 361102, China
Tao Li: School of Energy & Environment, Southeast University, Nanjing 210096, China
Suriani Abu Bakar: Nanotechnology Research Centre, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjung Malim 35900, Malaysia
Nafisah Osman: Fakulti Sains Gunaan, Universiti Teknologi MARA Cawangan Perlis, Kampus Arau, Arau 02600, Malaysia
Juhana Jaafar: Department of Energy Engineering, School of Chemical and Energy Engineering (FCEE), Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Mukhlis A Rahman: Department of Energy Engineering, School of Chemical and Energy Engineering (FCEE), Universiti Teknologi Malaysia, Skudai 81310, Malaysia
Ahmad Fauzi Ismail: Department of Energy Engineering, School of Chemical and Energy Engineering (FCEE), Universiti Teknologi Malaysia, Skudai 81310, Malaysia

Sustainability, 2021, vol. 13, issue 24, 1-26

Abstract: The study examines the effect of using low nickel (Ni) with high ceria (CeO 2 ) anode content towards the oxidation of H 2 and CH 4 fuel by evaluating the activation energy of the ohmic process and charge transfer process. Using a micro-tubular solid oxide fuel cell (MT-SOFC), the anodes are made up of 50% YSZ with varying NiO:CeO 2 percentages from 0% NiO, 50% CeO 2 to 50% NiO, 0% CeO 2 . The performance is measured based on maximum power density (MPD), electrochemical impedance spectroscopy (EIS) and activation energy, E a of the ohmic (Rohm) and charge transfer (R ct ) processes. We found that by lowering the Ni content to lower than 50% NiO, anode conductivity will drop by 7-fold. An anode containing 37.5% NiO, 12.5% CeO 2 yield MPD of 41.1 and 2.9 mW cm −2 when tested on H 2 and CH 4 fuels thus have the lowest Ni content without an abrupt negative effect on the MPD and EIS. The significant effect of conductivity drops on MPD and EIS are observed to occur at 25% NiO, 25% CeO 2 and lower NiO content. However, anode content of 25% NiO, 25% CeO 2 has the lowest E a for R ct (29.74 kJ mol −1 ) for operation in CH 4 , making it the best anode composition to oxidize CH 4 . As a conclusion, an anode containing 25% NiO:25% CeO 2 :50% YSZ and 37.5% NiO:12.5% CeO 2 :50% YSZ shows promising results in becoming the low Ni anode for coking-tolerant SOFC.

Keywords: microtubular solid oxide fuel cell; ceria; methane; nickel; coking resistant; YSZ (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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