Mukhopadhyay, Madhumita and Mukhopadhyay, Jayanta and Das Sharma, Abhijit and Basu, Rajendra Nath (2011) Multilayered SOFC Anode Structure with Electroless Ni-YSZ for Enhancement of Cell Performance. ECS Transactions, 35 (1). pp. 1293-1302. ISSN 1938-5862

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Abstract

High performance SOFC is fabricated using multilayer anode support with graded porosity. The graded anode fulfills the requirement of proper fuel oxidation at anode, effective electrochemical reaction at anode/electrolyte interface, thermal compatibility among cell components and long term stability. In such multilayer anode, conventional cermet (40 vol % Ni) helps in proper fuel diffusion and catalytic oxidation. Novel electroless anode (28-32 vol % Ni) is employed adjacent to YSZ electrolyte for effective electrochemical activity and thermal compatibility. Because of the presence of unique core (YSZ)-shell (Ni) microstructure, electroless anode is found to extend the anodic electrochemical reaction from electrolyte/anode interface to the bulk. Significant performance enhancement with current density of ~3.3 Acm-2 is observed for single cells fabricated with multilayer anode at 800degC, 0.7V. The multilayer anode is found to reduce the cell degradation from ~11 % (conventional anode) to ~1.6 % /1000 h during long term performance (~2000 h).

Item Type:	Article
Subjects:	Electronics
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	07 Feb 2012 06:42
Last Modified:	06 Feb 2015 10:36
URI:	http://cgcri.csircentral.net/id/eprint/667

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