Kinetics and Catalysis. Vol. 59, No. 2, Pages 196-202, 2018

A. K. Gatin^a, M. V. Grishin^a^, *, S. Yu. Sarvadii^a, V. G. Slutskii^a, V. A. Kharitonov^a, B. R. Shub^a, and A. I. Kulak^b
Translated by V. Makhlyarchuk

^aSemenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 119334 Russia

^bInstitute of General and Inorganic Chemistry, Belarussian Academy of Sciences, Minsk, 220072 Belarus

Abstract—The shapes, sizes, and electronic structures of platinum nanoparticles supported onto highly oriented pyrolytic graphite and oxidized silicon by different methods and their adsorptive properties with respect to hydrogen, oxygen, water, and ammonia were established. The apparent activation energy of the reduction of single oxidized platinum nanoparticles with molecular hydrogen was determined. The possibility of controlling the rate of ammonia decomposition by a nanostructured platinum coating by the application of electric potentials of different values and polarities to it was demonstrated.

Keywords: platinum nanoparticles, supports, adsorptive properties, hydrogen, oxygen, water, ammonia, scanning tunneling microscopy, spectroscopy

Physicochemical Properties of Nanoparticles: Interaction of Supported Platinum Nanoparticles with Gaseous Reactants