Galvanic exchange platinization reveals laser-inscribed pattern in 3D-LAM-printed steel

Alex G.M. Litherland, Lee M. Spurway, Sergey N. Gordeev, Barak D.B. Aaronson, Andrew J. Wain, Michael A. O’Connell, Heidi Piili, Mikko Hovilehto, Ville Pekka Matilainen, Anne Vuorema, Frank Marken

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1 Citation (Scopus)
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Abstract

Galvanic exchange involving dissolution of iron and the simultaneous growth of platinum onto 316 L stainless steel was investigated for specimens manufactured by 3D-printing, and the behavior was compared to conventional stainless steel. Novel phenomena associated with the 3D-printed steel, but not conventional steel, reacting in three distinct phases were observed: first, with low platinum loading, a bright etching pattern linked to the laser-manufacturing process is revealed at the steel surface; second, a nanostructured pore pattern with platinum nano-deposits forms; and third, a darker platinum film coating of typically 500-nm thickness forms and then peels off the steel surface with further platinum growth underneath. Unlike the conventional steel (and mainly due to residual porosity), 3D-printed steel supports well-adhered platinum films for potential application in electrocatalysis, as demonstrated for alkaline methanol oxidation. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalJournal of Solid State Electrochemistry
Volume22
Issue number6
Early online date13 Jan 2018
DOIs
Publication statusPublished - 1 Jun 2018

Keywords

  • Alloys
  • Catalysis
  • Electroless deposition
  • Laser pattern
  • Nanoporosity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry
  • Electrical and Electronic Engineering

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  • Cite this

    Litherland, A. G. M., Spurway, L. M., Gordeev, S. N., Aaronson, B. D. B., Wain, A. J., O’Connell, M. A., Piili, H., Hovilehto, M., Matilainen, V. P., Vuorema, A., & Marken, F. (2018). Galvanic exchange platinization reveals laser-inscribed pattern in 3D-LAM-printed steel. Journal of Solid State Electrochemistry, 22(6), 1-8. https://doi.org/10.1007/s10008-017-3869-8