Mukhopadhyay, Madhumita and Mukhopadhyay, Jayanta and Das Sharma, Abhijit and Basu, Rajendra Nath (2011) In-situ patterned intra-anode triple phase boundary in SOFC electroless anode: An enhancement of electrochemical performance. International Journal of Hydrogen Energy, 36 (13). pp. 7677-7682. ISSN 0360-3199

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Abstract

Co-existence of intra-anode and conventional triple phase boundary (TPB) is reported for the first time in core (YSZ)-shell (Ni) electroless anode cermet. A mathematical model is proposed for determination of intra-anode TPB length and has been validated experimentally. Retention of longer intra-anode TPB even after repeated redox cycling is responsible for relatively lower conductivity degradation of such cermets. Existence of intra-anode TPB in electroless anode results in significant improvement of electrochemical performance. Single cells with electroless anode exhibit a current density of 2.5 A cm(-2) compared to cells with conventional anode (1.7A cm(-2)) at 800 degrees C, 0.7 V. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Electroless anode; Anode-supported-SOFC; Intra-anode TPB; Modeling; Electrochemical performance
Subjects:	Electronics
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	16 Jan 2012 12:08
Last Modified:	29 Mar 2016 09:00
URI:	http://cgcri.csircentral.net/id/eprint/295

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