Optimisation of water-based cathode inks for solid oxide fuel cells

K. S. Howe; Z. H. Song; T. H. Kueh; R. Steinberger-Wilckens; A. Dhir

doi:10.1149/05701.2057ecst

Optimisation of water-based cathode inks for solid oxide fuel cells

K. S. Howe, Z. H. Song, T. H. Kueh, R. Steinberger-Wilckens, A. Dhir

Research output: Contribution to journal › Article › peer-review

Abstract

A new cathode ink for a solid oxide fuel cell has recently been developed (UK Patent Publication Number GB2490869). It was found to give a power density of 0.33 W/cm² at 0.7 V at 750°C running on hydrogen. Further optimisation work has been undertaken, focusing on the dispersant: Poly(N-VinylPyrrolidone) - PVP. The effects of chain length and weight percentage of PVP have been investigated, and Poly (ethylene glycol) - PEG - was tested for comparison. PEG was found to give good performance at lower weight percentages, but had a negative impact on ink rheology at higher concentrations. Optimisation of the ink formulation increased the power at 0.7 V to 0.46 W/cm² under identical test conditions.

Original language	English
Pages (from-to)	2057-2063
Number of pages	7
Journal	ECS Transactions
Volume	57
Issue number	1
DOIs	https://doi.org/10.1149/05701.2057ecst
Publication status	Published - 1 Jan 2013

ASJC Scopus subject areas

Engineering(all)

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abstract = "A new cathode ink for a solid oxide fuel cell has recently been developed (UK Patent Publication Number GB2490869). It was found to give a power density of 0.33 W/cm2 at 0.7 V at 750°C running on hydrogen. Further optimisation work has been undertaken, focusing on the dispersant: Poly(N-VinylPyrrolidone) - PVP. The effects of chain length and weight percentage of PVP have been investigated, and Poly (ethylene glycol) - PEG - was tested for comparison. PEG was found to give good performance at lower weight percentages, but had a negative impact on ink rheology at higher concentrations. Optimisation of the ink formulation increased the power at 0.7 V to 0.46 W/cm2 under identical test conditions.",

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Optimisation of water-based cathode inks for solid oxide fuel cells

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