Quantitative investigation using X-ray photoelectron spectroscopy of oxidation of platinum catalyst films deposited by sputtering and spraying for fuel cell applications
-
Add time:08/18/2019 Source:sciencedirect.com
The morphology and chemical composition of platinum coatings deposited by magnetron-ion sputtering of a platinum target in various modes (stationary, pulsed), and air spraying of platinum black on titanium supporting foils were studied. Metallic platinum subjected to ionic purification was used as a reference sample. It is shown that the composition of coatings in addition to platinum includes its oxides PtO (10–11 at. %) and PtO2 (2–5 at. %). The presence of oxides in the composition of platinum coatings is explained by the high specific surface of platinum in the coating, whereby partial oxidation takes place in the air. It has been found that the mode of magnetron-ion sputtering, as well as the presence of the Nafion® ionomer (5 wt. %) in the air-spraying composition based on platinum black does not affect the phase composition of the coating. Morphological properties of the platinum coatings are influenced by the state of initial platinum source, and by the energy of the sputtered particles.
We also recommend Trading Suppliers and Manufacturers of Platinum dioxide (cas 1314-15-4). Pls Click Website Link as below: cas 1314-15-4 suppliers
Prev:Preparation and catalytic properties of Platinum dioxide (cas 1314-15-4) nanoparticles: A comparison between conventional heating and microwave-assisted method
Next:Hydrogen spillover in the platinum–hydrous tin dioxide system) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Measurement of radiation heat transfer in supercritical carbon dioxide medium08/23/2019
- Effects of platinum on photo-assisted electrocatalytic activity of fringe-shaped highly ordered mesoporous titanium dioxide film08/22/2019
- Catalytic transformation of carbon dioxide and methane into syngas over ruthenium and platinum supported hydroxyapatites08/21/2019
- Full Length ArticleCopper and platinum doped titania for photocatalytic reduction of carbon dioxide08/20/2019
- Hydrogen spillover in the platinum–hydrous tin dioxide system08/19/2019
- Preparation and catalytic properties of Platinum dioxide (cas 1314-15-4) nanoparticles: A comparison between conventional heating and microwave-assisted method08/17/2019
- Catalytic transfer hydrogenolysis of lignin into monophenols over platinum-rhenium supported on titanium dioxide using isopropanol as in situ hydrogen source08/16/2019
- Platinum nano-flowers with controlled facet planted in titanium dioxide nanotube arrays bed and their high electro-catalytic activity08/15/2019
-
Health and Chemical more >