A novel water-based cathode ink formulation

Howe, Katie S.; Clark, Ewan R.; Bowen, James and Kendall, Kevin (2013). A novel water-based cathode ink formulation. International Journal of Hydrogen Energy, 38(3) pp. 1731–1736.

DOI: https://doi.org/10.1016/j.ijhydene.2012.08.105

Abstract

A new cathode ink for a solid oxide fuel cell has been developed (patent pending: UK Patent Application Number 1107672.6). A novel, water-based formulation was created and tested against the standard, in-house, acetone-based ink recipe. Poly(N-VinylPyrrolidone) (PVP) was selected as a suitable dispersant and Poly(Vinyl Alcohol) (PVA) as the binder and a range of chain lengths and quantities was tested. The PVA content was adjusted to optimise adhesion of the two layers, as some delamination was observed with the first attempt. Various PVP chain lengths and quantities were tested to determine the effect on ink dispersion, and hence cathode structure and porosity. The electrical performance was tested and found to be favourably comparable with the in-house recipe, giving a marginally higher peak power density of 0.48 W/cm².

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About

• Item ORO ID
• 43167
• Item Type
• Journal Item
• ISSN
• 0360-3199
• Extra Information
• 2011 Zing International Hydrogen and Fuel Cells Conference: from Nanomaterials to Demonstrators
• Keywords
• cathode; SOFC; solid oxide fuel cell; ink; water-based
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © ª 2012, Hydrogen Energy Publications, LLC.
• Depositing User
• James Bowen