Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403


공학

한국표면공학회지 (28권4호 243-254)

A study on the developmenet of Anode Material for Molten Carbonate Fuel Celt - Cu-base electrode-

용융탄산염 연료전지의 양극 및 대체재료의 제작에 관한 연구 -Cu-base 전극에 대하여-

박재우;김용덕;황응림;김선진;강성군;

한양대학교 재료공학과;

Abstract

The fabrication process of Cu-base anode for replacing Ni-base anode of molten carbonate fuel cell was investigated. Electrochemical performance and thermal stability of Cu-base anode were also investigated. Green sheet was prepared by mixing Cu and Ni powder with 1.5wt% methylcellulose and 100wt% water. The pore-size distribution of the Cu-base anode sintered at $800^{circ}C$ for 30min showed almost uniform pore-size ranging from 4 to 20$mu extrm{m}$ and it was considered suitable for MCFC anode. Cu-Ni anode containing between 35 to 50wt% Ni exhibited current density of 111mA/$ extrm{cm}^2$ at 100mV overpotential and it was almost the some value for pure Ni anode. The sintering resistance of Cu-Ni increased with an increase of Ni addition. It was considered that the increase of sintering resistance was due to the decrease of diffusion rate of Cu and Ni with increasing the addition of Ni in Cu-Ni alloy.

Keywords