Das, Debasish and Basu, Rajendra Nath (2014) Electrophoretic deposition of thin film zirconia electrolyte on non-conducting NiO-YSZ zubstrate. Transactions of the Indian Ceramic Society, 73 (2, SI). pp. 90-93. ISSN 0371-750X

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Eight (8) mol% yttria stabilized zirconia (YSZ), an electrolyte material for solid oxide fuel cell (SOFC), has been deposited onto porous non-conducting NiO-YSZ substrate using electrophoretic deposition technique (EPD) from a stable non-aqueous suspension of YSZ. Normally, EPD cannot be performed on a non-conducting substrate, but, in this present study, YSZ particulate film has been successfully deposited on a non-conducting NiO-YSZ substrate following two different EPD approaches:(a) using a conducting metallic plate on the reverse side of the porous NiO-YSZ anode substrate and (b) using a conducting polymer coated NiO-YSZ substrate. The deposited films are then formed dense coatings of 5-15 mu m after sintering at 1400 degrees C for 6 h in air. Surface and cross-sectional morphologies of green and sintered films deposited by different EPD approaches are investigated using SEM. La0.65Sr0.3MnO3 (LSM), a cathode for SOFC, is then screen-printed onto the electrolyte layer of such sintered half cells (anode+electrolyte) prepared by both the above approaches to construct SOFC single cells. A maximum output power density of 0.37 W.cm(-2) is obtained using single cells prepared by conducting metallic plate assisted EPD compared to that of 0.73 W.cm(-2) for polymer coated at 800 degrees C using H-2 as fuel and O-2 as oxidant.

Item Type: Article
Subjects: Electronics
Divisions: Fuel Cell and Battery
Depositing User: Bidhan Chaudhuri
Date Deposited: 15 Dec 2014 07:16
Last Modified: 15 Dec 2014 07:16
URI: http://cgcri.csircentral.net/id/eprint/2627

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