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Infiltration of commercially available, anode supported SOFC’s via inkjet printing

Published version
Peer-reviewed

Type

Article

Change log

Authors

Mitchell-Williams, TB 
Tomov, RI 
Saadabadi, SA 
Krauz, M 
Aravind, PV 

Abstract

Commercially available anode supported solid oxide fuel cells (NiO-8YSZ/8YSZ/LSCF- 20 mm in diameter) were anode infiltrated with gadolinium doped ceria (CGO) using a scalable drop-on-demand inkjet printing process. Cells were infiltrated with two different precursor solutions—water based or propionic acid based. The saturation limit of the 0.5 lm thick anode supports sintered at 1400 C was found to be approximately 1wt%. No significant enhancement in power output was recorded at practical voltage levels. Microstructural characterisation was carried out after electrochemical performance testing using high resolution scanning electron microscopy. This work demonstrates that despite the feasibility of achieving CGO nanoparticle infiltration into thick, commercial SOFC anodes with a simple, low-cost and industrially scalable procedure other loss mechanisms were dominant. Infiltration of model symmetric anode cells with the propionic acid based ink demonstrated that significant reductions in polarisation resistance were possible.

Description

Keywords

inkjet printing, infiltration, solid oxide fuel cells, doped ceria

Journal Title

Materials for Renewable and Sustainable Energy

Conference Name

Journal ISSN

2194-1459
2194-1467

Volume Title

6

Publisher

Springer
Sponsorship
EPSRC (via University of St Andrews) (YEP206)
This work has in part been supported by the Engineering and Physical Sciences Research Council (EPSRC), UK.
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