Ion-beam formation of the active surface of methanol oxidation electrocatalysts on the tantalum substrates

La actividad electrocatalítica en la oxidación electrolítica del metanol en un sustrato de tántalo es medida por una voltamperometría cíclica.

The active surfaces of electrocatalysts are formed by the ion-beam-assisted deposition of one of the rare-earth metals and platinum onto tantalum substrates from a neutral vapor fraction and the vacuum-arc discharge plasma of a pulsed ion source.  Deposited metal ions are used as agents to aid deposition.  The compn. and microstructure of the formed surface layers are investigated via SEM, electron probe microanal., electron backscatter diffraction, and Rutherford backscattering spectrometry.  Electrocatalytic activity in the electrochem. oxidn. of methanol, which underlies the operation of low-temp. fuel cells, is investigated via cyclic voltamperometry.

http://link.springer.com/article/10.1134%2FS1027451012090121

Poplavskii, V. V.; Stel'makh, T. S.; Matys, V. G.

Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques (2012), 6(5), 748-757