The influence of activated carbon as an additive in anode materials for low temperature solid oxide fuel cells |
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| Affiliation: | 1. Clean Energy Research Lab (CERL), Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan;2. Department of Food Science & Technology, School of Agriculture, Shiraz University, Shiraz, 71441-65186, Iran;3. Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University, Islamabad, Lahore Campus, Lahore, 54000, Pakistan;1. Fuel Cell Institute, Universiti Kebangsaan Malaysia, UKM, 43600 Bangi, Selangor, Malaysia;2. US-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology, NUST H-12, 44000 Islamabad, Pakistan;3. Centre for Materials Engineering and Smart Manufacturing, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, 43600 Bangi, Selangor, Malaysia;1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China;2. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA;1. Centre of Excellence in Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan;2. Department of Physics, COMSATS Institute of Information Technology, Lahore 54000, Pakistan;3. Department of Applied Physics, Aalto University F10007, Finland;1. Department of Energy Technology, KTH Royal Institute of Technology, Stockholm, SE-10044, Sweden;2. Hubei Collaborative Innovation Center for Advanced Organic Materials, Faculty of Physics and Electronic Technology, Hubei University, Wuhan, Hubei, 430062, China;3. Department of Engineering Sciences, Ångström Laboratory, Uppsala University, 751 21, Uppsala, Sweden |
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| Abstract: | The effects of activated carbon (AC) as an additive in multi-oxide nano composite LiNiCuZn–O for application as anode in solid oxide fuel cell (SOFC) is reported. The composite was synthesized using solid state reactions method with varying content of AC in range 0.1%–0.9% for use as anode in the cell. The cell was composed of the synthesized composite as anode, LiNiCuZn–O as cathode and Samaria doped ceria (SDC) as electrolyte. The prepared composites were characterized for morphology and crystal structure by scanning electron microscope (SEM) and x-ray diffraction (XRD) respectively. Furthermore, the crystallite sizes of LiNiCuZn–O and LiNiCuZn–O with AC as an additive have been found in the range from 50 nm to 70 nm. The prepared composite materials were observed porous and the porosity of the sample having 0.5% additive was found highest. The conductivity and power density of the SOFC were studied at temperature of 600 °C. The maximum value of conductivity was found as 4.79 S/cm for the composite containing 0.5% AC as measured by using 4-probe method. The maximum value of power density of the fuel cell with anode comprising of 0.5% AC along with the mentioned cathode and the electrolyte was 455 mW/cm2. Therefore, out of the compositions studied, the composite comprising of LiNiCuZn–O with 0.5% AC offered best performance for anode in the cell. This oxide composite is reported as a potential candidate for use as anode in low temperature SOFCs. |
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| Keywords: | Solid oxide fuel cell Anode Solid state reaction Power density |
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