Nickel and its alloys as perspective materials for intermediate temperature steam electrolysers operating on proton conducting solid acids as electrolyte

Aleksey Nikiforov, Irina Petrushina, Jens Oluf Jensen, Niels J. Bjerrum

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Several stainless steels, nickel-based alloys, Ta-coated stainless steel, niobium, nickel, platinum and gold were evaluated as possible materials for use in the intermediate temperature water electrolysers. The corrosion resistance was measured in molten KH2PO4 as simulated conditions corresponding to protonconducting solid acids or transition metal phosphates as electrolytes. It was shown that Au is subject to corrosion in molten KH 2PO4 during polarisation. However, Ni and Ta-coated stainless steel (AISI 316L) demonstrated high corrosion stability and can be recommended as a construction material for bipolar plates and cell housing. It was shown, that nickel, high-nickel alloys and austenitic stainless steels containing small amounts of Ti have high corrosion resistance in this media. © The Electrochemical Society.
Original languageEnglish
JournalE C S Transactions
Volume50
Issue number44
Pages (from-to)53-61
ISSN1938-5862
DOIs
Publication statusPublished - 2012
EventPacific Rim Meeting on Electrochemical and Solid-State Science: 222nd Meeting of ECS — The Electrochemical Society and 2012 Fall Meeting of The Electrochemical Society of Japan - Hawaii Convention Center and the Hilton Hawaiian Village, Honolulu, United States
Duration: 7 Oct 201212 Oct 2012
http://www.electrochem.org/meetings/biannual/222/222.htm

Conference

ConferencePacific Rim Meeting on Electrochemical and Solid-State Science
LocationHawaii Convention Center and the Hilton Hawaiian Village
CountryUnited States
CityHonolulu
Period07/10/201212/10/2012
Internet address

Keywords

  • Austenitic stainless steel
  • Coated materials
  • Corrosion resistance
  • Gold coatings
  • Nickel alloys
  • Solid electrolytes
  • Nickel

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