Evaluation of solid electrolyte cells with a versatile electrochemical technique

Clarke, Robin E; Kulkarni, Aniruddha; Giddey, Sarbjit; Badwal, S. P. S.

doi:10.1007/s11581-012-0749-1

Cited by 10 publications

(5 citation statements)

References 12 publications

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“…As-received 5.5070 (7) 13.3929 (5) i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 3 7 ( 2 0 1 2 ) 1 9 0 9 2 e1 9 1 0 2 subjected to galvanostatic current interruption (GCI) under multiple currents at 804 C. The details of GCI measurement procedures and equipment used are presented in [14]. Briefly the GCI technique enables separation of electrolyte resistance and polarisation losses if a fast current interrupt switch is used and the voltage decay after current interruption is recorded using a fast data acquisition system.…”

Section: Samplementioning

confidence: 99%

Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells

Kulkarni

Ciacchi

Giddey

et al. 2012

International Journal of Hydrogen Energy

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105

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Section: Samplementioning

confidence: 99%

Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells

Kulkarni

Ciacchi

Giddey

et al. 2012

International Journal of Hydrogen Energy

Self Cite

105

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“…These two arcs encompass the polarization resistance from both anode and cathode. The contribution of LSCF cathode to the EIS of the cell must be negligible as demonstrated in our previous study [19]. Thus, the two arcs in both Ag-LSCF and Pd-Ag-LSCF electrode can be attributed to anode processes including diffusion, charge transfer, gas adsorption/desorption and hydrogen splitting on the MIEC electrode surface as well as the electrolyte / electrode interface.…”

Section: Temperature Effects On Ocv and Performancementioning

confidence: 58%

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

Rathore¹,

Kulkarni²,

Fini³

et al. 2021

Preprint

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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 regime for direct ammonia fuelled SOFCs are limited. The studies on fuel electrodes tailored specifically for ammonia fuel are limited. In this work, we evaluated the direct ammonia SOFC performance with 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 hypothesized 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 a performance enhancement by 20% and 43% with hydrogen and ammonia fuels respectively from the Pd addition of Ag-LSCF anode. Open circuit voltage (OCV) values of the cells with hydrogen and ammonia fuel recorded over the temperature range of 500 °C to 800 °C indicated the possibility of direct electro-oxidation of ammonia in SOFCs.

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“…It should be noted that, for both cells, the electrolyte disk was fabricated from the same batch. Thus, differences could be at- The contribution of the LSCF cathode to the EIS of the cell must be negligible, as demonstrated in our previous study [20]. Thus, the two arcs in both the Ag-LSCF and Pd-Ag-LSCF electrodes can be attributed to anode processes including diffusion, charge transfer, gas adsorption/desorption and hydrogen splitting on the MIEC electrode surface, as well as the electrolyte/electrode interface.…”

Section: Electrode Performances With Hydrogen Fuelmentioning

confidence: 64%

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

Rathore

Kulkarni

Fini

et al. 2021

Solids

View full text Add to dashboard Cite

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.

show abstract

Evaluation of solid electrolyte cells with a versatile electrochemical technique

Cited by 10 publications

References 12 publications

Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells

Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells

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

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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