Hello,
I'm working on a SAFIRE analog experiment. Components:
- Large glass bell jar with steel baseplate and gasket. Evacuated with backing pump, and turbomolecular pump as needed.
- There will be a gas tube to feed hydrogen to a hollow anode. Pressure: on the order of 1 atm. The simplest anode will be the gas tube capped by a nickel or nickel alloy flat plate. I will also use hollow sphere anodes.
- The electrode will be surrounded by a cathode.
- Voltage difference: up to 1000 V and 200 mA, or 600V and 4A.
- I hope to heat the anode to ~1000C or higher using trace plasma in the vacuum chamber to exponentially increase hydrogen diffusion through the anode shell. Is this likely to work?
Questions:
1) What metals should be used for different anodes? Pure nickel for sure, but I also want a nickel alloy. IIRC SAFIRE said to use at least 10% nickel content.
2) I want a "plug and play" type setup for plugging in different anodes. Each hollow anode will be welded to a metal gas tube. How would you suggest I connect this gas tube to the base plate and vacuum/H2 feed system? This is basically a vacuum/gas feed plumbing and connector question and it's the biggest question I have right now.
If I can get this system working and doing something interesting I will graduate to an all-metal chamber with additional instrumentation such as a langmuir probe.
Background info: