Cristin-resultat-ID: 1982749
Sist endret: 17. januar 2022, 14:47
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Electrochemical Investigation of Alloys for Alkaline Water Electrolyzers

Bidragsytere:
  • Morten Tjelta
  • Simona Palencsar og
  • Jon Kvarekvål

Tidsskrift

International Corrosion Conference Series
ISSN 0361-4409
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Volum: 2021-April
Artikkelnummer: 16975

Beskrivelse Beskrivelse

Tittel

Electrochemical Investigation of Alloys for Alkaline Water Electrolyzers

Sammendrag

In alkaline water electrolyzers many parts are made of expensive nickel-based alloys, which in some cases may be an overly conservative option. Careful evaluation of the operating conditions and new research are required to determine to which extent nickel-based alloys may be replaced by less expensive materials in parts of the system. Electrochemical investigations have been carried out to get a deeper understanding of corrosion and film formation occurring on typical alloys used in alkaline electrolyzers. Potentiodynamic sweeps were performed on carbon steel (UNS K03014) and austenitic stainless steel (UNS S31603) in 25 wt% KOH under O2, N2 and H2 at atmospheric pressure from room temperature up to 80 °C. The gases represent the anode side, start-up/shut-in and the cathode side, respectively. Differences between the two materials and their response at the different conditions are discussed.

Bidragsytere

Morten Tjelta

  • Tilknyttet:
    Forfatter
    ved Korrosjonsteknologi ved Institutt for energiteknikk

Simona Palencsar

  • Tilknyttet:
    Forfatter
    ved Korrosjonsteknologi ved Institutt for energiteknikk

Jon Kvarekvål

  • Tilknyttet:
    Forfatter
    ved Korrosjonsteknologi ved Institutt for energiteknikk
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