Performance of electrocatalytic gold coating on bipolar plates for SO2 depolarized electrolyser

Annukka Santasalo-Aarnio*, Anu Lokkiluoto, Jorma Virtanen, Michael Gasik

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)


One of the largest obstacles for SO2 depolarized electrolyser (SDE) commercialization is the material stability in rough operating conditions. In this work stainless steel bipolar plates have been coated with thin Au layer having bifunctional role: providing electrocatalytic surface for both electrode reactions and simultaneously improves the stainless steel support corrosion tolerance at the potential window of SDE. The stability and performance of the coated bipolar plates were tested in a bench-scale electrolyser set-up and the results indicate that these plates can be utilized as economic catalyst for SDE, moreover, they show corrosion resistance in SDE operation.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalJournal of Power Sources
Issue number29 February 2016
Publication statusPublished - 29 Feb 2016
MoE publication typeA1 Journal article-refereed


  • Au coating
  • Bipolar plates
  • Hydrogen production
  • SDE
  • Stainless steel


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