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Plating platinum over tungsten filament for use as catalyst in high temp hydrocarbon reaction

2007

I am working on a CVD (chemical vapor deposition) project envolving the creation of carbon allotropes (graphite, diamond, ect).

For this project, I am curious if platinum can be bath plated over tungsten in such a way as to be stable at around 1,200C. If one can be plated to the other directly, would there still be problems of the platinum melding into the tungston, or fracturing off, due to differental expansion.
The reaction would be conducted at <1bar of pressure, and in absence of O2.
Separate heating elements and catylists work. integrating them might be better.

Charles Lafferty
student - Seattle, Washington, USA

Not an easy task. there are probably less than a dozen plating shops that both plate on tungsten and plate platinum. Depending on skill and blind dumb luck, a beginner might be able to do it, but I would not bet on the results being acceptable and it might not be affordable for a student.

James Watts
- Navarre, Florida
2007