you should try a "agua regia" solution. A mixture of 3 volumes of chloridric acid and 1 volume of nitric acid.
If you deep platinum in aqua regia for a few minutes, will not greatly affect the platinum (only the first layers) and of course the coverage of the deposits on the surface.
So you will get a pure platinum electrode and after this you must execute the flame annealing protocol, Immediately before placing the electrode in the cell atmosphere (Ar or N2).
I used concentrated nitric acid to clean the Pt electrode or just polish the electrode by a pledget. I am afraid It's not a good idea to use Pt electrode as workiing elecgtrode to deposite PtFe. The metal ions can easily deposite on the Pt surface if the voltage not well controlled. In this case graphite may be a substitute.
Dear Usman
i would like to know whether you are Pt- Fe alloy on Pt--
what is your problem ?
are you using Platinic chloride bath? what is your complexing agent?
what is the source of Fe ? is it ferric/ ferrous salt?
i am an electro chemist for the past 46 years - i deposited all alloys
if you want to study of deposition of Pt-Fe alloy use Glassy carbon
if you want to clean the deposited product use concentrated acid
dear usman
i answer for Fe-Pt alloy deposition - For Pt in the same bath use H2PtCl6 with ethanolamine as a complexant and ferrous ammonium sulphate with triammonium citrate as complexant , a buffer and so on - the bath has two complexants
For Bi deposition see the book on the bible - Brenner VOl1 and 2
A more sifiusticated but effective method is laser cleaning. Yo can use a pulsed laser with short pulse duration and high pulse power, the best is UV laser
- Badges
- Science topic
- Similar topics
- Engineering
- Electrical Engineering
- Electrodes