Date: Sat, 26 Aug 2000 00:56:21 -0500
Author: brian whatcott
Subject: Re: Platinum Catalyst for Igniting Hydrogen
At 20:52 8/25/00 -0500, you wrote:
>Can anyone tell me the requirements for platinum in this application?
>Specifically: what purity does the platinum need to be, and what form does
>it need to be in (powder, wool, wire, sheet, etc)?
>I have some discs about an eighth-inch diameter, 90% platinum 10% ruthenium,
>and I'm wondering if they would do the job.
Platinum catalysis is a surface effect so a form that maximizes
the surface is effective. One such preparation is platinum black -
made by vacuum drying. Platinum is used in fine wire gauze for
ammonium reactions, and carried on aluminum oxide grit for petroleum
It is absorbed as an organometal or as a suspension into porous
material where heating drives off the carrier.