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- Path: sparky!uunet!munnari.oz.au!uniwa!fennel.cc.uwa.oz.au!tiq
- From: tiq@fennel.cc.uwa.oz.au (Todd Green)
- Newsgroups: sci.physics.fusion
- Subject: Re: Ni - H2O electrolysis
- Date: 22 Nov 92 16:51:26 +0800
- Organization: University of Western Australia
- Lines: 25
- Message-ID: <1992Nov22.165126.1@fennel.cc.uwa.oz.au>
- References: <921122025453_73770.1337_EHA72-1@CompuServe.COM>
- NNTP-Posting-Host: fennel.cc.uwa.edu.au
-
- In article <921122025453_73770.1337_EHA72-1@CompuServe.COM>, Chuck Harrison <73770.1337@compuserve.com> writes:
- > Here's the current plan for Mills/Notoya replication:
- >
- > Simplified calorimetry (temperature rise of cell dewars) estimates heat
- > generation <10%.
- > Operating current approx 150 ma.
- >
- > Question:
- > What is a reliable form of Pt catalyst (or Pd or other) to recombine
- > 2 H2 + O2 -> 2 H2O at room temp, ambient pressure?
-
- Cheap recombination catalysts can be obtained from Hydrocap Inc. - based
- in Florida, I think. There catylator product can recombine a few amps
- and they are rather cheap ($3 each). An alternative is to use a piece of
- fuel cell electrode. These usually consist of Pt dispersed on carbon and
- mounted on a metal base. E-Tek Inc. (Framingham, MA) manufacture an ESN type
- fuel cell material which works very well as a recombiner. It is best to get
- them "wet proofed" with a porous teflon film as a safety precaution.
- Cost is (approx) $100 for 50 cm2 and this would be enough for a number of
- cells. They are rather "clean", although a few carbon particles usually end up
- in the electrolyte.
-
- ----
- Todd Green
-
-