A LaNi0.9Co0.1O3 coated Ce0.8Sm0.2O1.9 composite anode for solid oxide fuel cells fed with methanol
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Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2019-05-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
6
220-225
220-225
Series
Catalysis Today, Volume 327
Abstract
Ce0.8Sm0.2O1.9 (SDC) powder is impregnated with LaNi0.9Co0.1O3 (LNC) to form a composite anode for solid oxide fuel cells with methanol as fuel. Nanoparticles of Ni-Co alloy are derived from LNC after reduction. The composite anode shows a sufficient electrical conductivity when the weight ratio of Ni to SDC reaches 0.1, which is much lower than the amount of Ni required in conventional Ni-SDC anodes. The aggregation of Ni-Co nanoparticles in the reduced anode is suppressed by the oxide supporter, resulting in an improved catalytic activity. The single cell with LNC-SDC composite anode and SDC-carbonate composite electrolyte exhibits a maximum power density of 872 mW cm−2 at 700 °C with gasified methanol as the fuel, much higher than that of the cell with a NiCo-SDC anode under the same condition. The amount of carbon deposited on the anode in methanol atmosphere decreases with the decline of the LNC content. The cells with LNC-SDC composite anodes exhibit stable performances during a 500-minute discharge period.Description
Keywords
Anode, Impregnation, Lanthanum nickelate, Methanol, Solid oxide fuel cell, HIGH-PERFORMANCE, OXIDATION, CATHODES, EXSOLUTION, CATALYST, NANOPARTICLES, TEMPERATURE, NI-YSZ, CARBON DEPOSITION, ELECTROCHEMICAL PERFORMANCE
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Citation
Gan , T , Ding , G , Zhi , X , Fan , L , Hou , N , Yao , X , Li , P , Zhao , Y & Li , Y 2019 , ' A LaNi 0.9 Co 0.1 O 3 coated Ce 0.8 Sm 0.2 O 1.9 composite anode for solid oxide fuel cells fed with methanol ' , Catalysis Today , vol. 327 , pp. 220-225 . https://doi.org/10.1016/j.cattod.2018.04.050
