SOFC anode용 나노구형 Ni(1-x)-M(x=0~0.15)(M=Co, Fe) alloy 분말 합성 및 그 특성

In this study, the reducing agent hydrazine and precipitator NaOH were used with NiCl2 as a starting material in order to compoundNi-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 ofmetal(Co, Fe) was alloyed in order to increase the catalyst activation performance of Ni and finally, spherical nano Ni(1-x)-M(x = 0~0.15)(M = Co, Fe) alloy materials were compounded. In order to evaluate the catalyst activation for hydrocarbon fuel, fuelgas(10%/CH4+10%/Air) was added and the responding gas was analyzed with GC(Gas Chromatography). Catalyst activationimprovement was confirmed from the 3% hydrogen selectivity and 2.4% methane conversion rate in Ni0.95-Co0.05 alloy; those valueswere 4.4% and 19%, respectively, in Ni0.95-Fe0.05 alloy.