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Evaluation of ((La0.60Sr0.40)0.95Co0.20Fe0.80O3-x)-Ag Composite Anode for Direct Ammonia Solid Oxide Fuel Cells and Effect of Pd Impregnation on the Electrochemical Performance

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CSIRO Energy, Private Bag 10, Clayton South, VIC 3169, Australia
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CSIRO Manufacturing, Private Bag 31, Clayton South, VIC 3169, Australia
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Author to whom correspondence should be addressed.
Academic Editor: Aleksey Yaremchenko
Solids 2021, 2(2), 177-191; https://doi.org/10.3390/solids2020012
Received: 5 March 2021 / Revised: 23 April 2021 / Accepted: 30 April 2021 / Published: 3 May 2021
(This article belongs to the Special Issue Feature Papers of Solids 2021)
Ammonia produced using renewable hydrogen is being viewed as a promising media for the export of energy from locations rich in renewable energy sources. Solid oxide fuel cells (SOFCs) are efficient devices for converting such exported ammonia back into electricity at the point of use; however, investigations on materials and operating regimes for direct ammonia fuelled SOFCs are limited. In this work, we evaluated the direct ammonia SOFC performance with a Silver-Lanthanum Strontium Cobalt Ferrite (Ag-LSCF) composite anode and a novel Palladium (Pd) nanoparticle decorated Silver-Lanthanum Strontium Cobalt Ferrite (Pd-Ag-LSCF) composite anode in the temperature range of 500 °C to 800 °C. It is hypothesised that palladium nanoparticles in the anode provide hydrogen dissolution and shift the ammonia decomposition reaction towards the right. The cell performance was evaluated with both hydrogen and ammonia as fuels and a clear-cut improvement in the performance was observed with the addition of Pd for both the fuels. The results showed performance enhancements of 20% and 43% with hydrogen and ammonia fuels, respectively, from the addition of Pd to the Ag-LSCF anode. Open-circuit voltage (OCV) values of the cells with hydrogen and ammonia fuels recorded over the temperature range of 500 °C to 800 °C indicated the possibility of direct electro-oxidation of ammonia in SOFCs. View Full-Text
Keywords: anode; ammonia; SOFC; energy conversion; energy storage; renewable energy anode; ammonia; SOFC; energy conversion; energy storage; renewable energy
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MDPI and ACS Style

Rathore, S.S.; Kulkarni, A.P.; Fini, D.; Giddey, S.; Seeber, A. Evaluation of ((La0.60Sr0.40)0.95Co0.20Fe0.80O3-x)-Ag Composite Anode for Direct Ammonia Solid Oxide Fuel Cells and Effect of Pd Impregnation on the Electrochemical Performance. Solids 2021, 2, 177-191. https://doi.org/10.3390/solids2020012

AMA Style

Rathore SS, Kulkarni AP, Fini D, Giddey S, Seeber A. Evaluation of ((La0.60Sr0.40)0.95Co0.20Fe0.80O3-x)-Ag Composite Anode for Direct Ammonia Solid Oxide Fuel Cells and Effect of Pd Impregnation on the Electrochemical Performance. Solids. 2021; 2(2):177-191. https://doi.org/10.3390/solids2020012

Chicago/Turabian Style

Rathore, Shambhu S., Aniruddha P. Kulkarni, Daniel Fini, Sarbjit Giddey, and Aaron Seeber. 2021. "Evaluation of ((La0.60Sr0.40)0.95Co0.20Fe0.80O3-x)-Ag Composite Anode for Direct Ammonia Solid Oxide Fuel Cells and Effect of Pd Impregnation on the Electrochemical Performance" Solids 2, no. 2: 177-191. https://doi.org/10.3390/solids2020012

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