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http://dx.doi.org/10.9713/kcer.2011.49.6.786

Fabrication of Electrolyte for Direct Carbon Fuel Cell and Evaluation of Properties of Direct Carbon Fuel Cell  

Pi, Seuk-Hoon (Department of Material Science and Engineering, KAIST)
Cho, Min-Je (Fuel Cell Research Center, Korea Institute of Energy Research)
Lee, Jong-Won (Fuel Cell Research Center, Korea Institute of Energy Research)
Lee, Seung-Bok (Fuel Cell Research Center, Korea Institute of Energy Research)
Lim, Tak-Hyoung (Fuel Cell Research Center, Korea Institute of Energy Research)
Park, Seok-Joo (Fuel Cell Research Center, Korea Institute of Energy Research)
Song, Rak-Hyun (Fuel Cell Research Center, Korea Institute of Energy Research)
Shin, Dong-Ryul (Fuel Cell Research Center, Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.49, no.6, 2011 , pp. 786-789 More about this Journal
Abstract
In order to estimate the possibility of applying electrolytes generally used in solid oxide fuel cells(SOFCs) to direct carbon fuel cells(DCFCs), properties of YSZ(yttria stabilized zirconia) electrolyte were evaluated. In this study, vacuum slurry coating method was adapted to coat thin layer on anode support substrate. After sintering the electrolyte at $1400^{\circ}C$ for 5hrs, microstructure was analyzed by using SEM image. Also, gas permeability and ionic conductivity were measured to find out the potential possibility of electrolyte for DCFCs. The YSZ electrolyte represented dense coating layer and low gas permeability value. The ionic conductivity of YSZ electrolyte was high over $800^{\circ}C$. After measurement of the electrolyte properties, direct carbon fuel cell was fabricated and its performance was measured at $800^{\circ}C$.
Keywords
Direct Carbon Fuel Cell; Electrolyte; Ionic Conductivity; Tubular Cell; Vacuum Slurry Coating;
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