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http://dx.doi.org/10.4191/kcers.2014.51.4.367

Synthesis and Characterization of Spherical Nano Ni(1-x)-M(x=0~0.15)(M=Co, Fe) Alloy Powder for SOFC Anode  

Lee, Min-Jin (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology)
Choi, Byung-Hyun (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology)
Ji, Mi-Jung (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology)
An, Young-Tae (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology)
Hong, Sun-Ki (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology)
Kang, YoungJin (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology)
Hwang, Hae-Jin (Advanced Materials Engineering, Inha University)
Publication Information
Journal of the Korean Ceramic Society / v.51, no.4, 2014 , pp. 367-373 More about this Journal
Abstract
In this study, the reducing agent hydrazine and precipitator NaOH were used with $NiCl_2$ as a starting material in order to compound Ni-based material with spherical nano characteristics; resulting material was used as an anode for SOFC. Synthetic temperature, pH, and solvent amounts were experimentally optimized and the synthesis conditions were confirmed. Also, a 0 ~ 0.15 mole ratio of metal(Co, Fe) was alloyed in order to increase the catalyst activation performance of Ni and finally, spherical nano $Ni_{(1-x)}-M_{(x=0{\sim}0.15)}$(M = Co, Fe) alloy materials were compounded. In order to evaluate the catalyst activation for hydrocarbon fuel, fuel gas(10%/$CH_4$+10%/Air) was added and the responding gas was analyzed with GC(Gas Chromatography). Catalyst activation improvement was confirmed from the 3% hydrogen selectivity and 2.4% methane conversion rate in $Ni_{0.95}-Co_{0.05}$ alloy; those values were 4.4% and 19%, respectively, in $Ni_{0.95}-Fe_{0.05}$ alloy.
Keywords
Solid oxide fuel cell; Spherical nano nickel; Catalytic activity; Hydrogen selectivity; Methane conversion; Solution process;
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