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High Temperature Water Electrolysis of Covalently Cross-linked CL-SPEEK/Cs-TSiA/Ceria Composite Membrane

공유가교 CL-SPEEK/Cs-TSiA/Ceria 복합막의 고온 수전해 성능

  • Received : 2017.07.28
  • Accepted : 2017.10.30
  • Published : 2017.10.30

Abstract

The high temperature performance of PEM type electrolyser at $120^{\circ}C$ based on covalently cross-linked sulfonated poly ether ether ketone (SPEEK) composie membrane was investigated. Ion conductivity and other properties of SPEEK membrane were improved by adding heteropoly acid and Ceria. The membrane electrode assemblies were prepared using commercial PtC and nano-sized $IrRuO_2$ catalyst by electro-spraying and decal process. Voltage efficiency of MEA equipped with SPEEK membrane was slightly better than that of $Nafion^{(R)}$ membrane, due to its higher proton conductivity at high temperature. The cell performance of MEA with CL-SPEEK/Cs-TSiA/Ceria is 1.71 V at $1A/cm^2$ and $120^{\circ}C$.

Keywords

Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)

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