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Galvanic exchange platinization reveals laser-inscribed pattern in 3D-LAM-printed steel.
- Source :
- Journal of Solid State Electrochemistry; Jun2018, Vol. 22 Issue 6, p1755-1762, 8p
- Publication Year :
- 2018
-
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.ᅟ<graphic></graphic> [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14328488
- Volume :
- 22
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Journal of Solid State Electrochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 129492246
- Full Text :
- https://doi.org/10.1007/s10008-017-3869-8