Page 12 - Korniy_dyser
P. 12
12
The developed corrosion models and obtained quantum-chemical principles
of the multicomponent system interactions with the environment have allowed us
to establish the relationship between the calculated influence of the corrosive
components on the materials and experimentally determined corrosive properties
of the materials.
Finally, the established relationships between chemical composition, crystal
structure, the nature of chemical bonding in binary platinum nanoclusters and their
reactivity enable us to provide practical recommendations for the prediction of
properties and creation of new efficient binary platinum-based nanomaterials for
low-temperature fuel cells. In particular, quantum-chemical studies show that
binary nanoclusters with the shell structure based on platinum (Pt 42Co 13) possess a
higher resistance to oxidation and thus have better functional properties as
compared to the pure platinum (Pt 55), and could be used to produce electrodes in
the fuel cells for electroreduction of oxygen.
Developed methods have been already used to determine the energetically
stable structures of binary nanoparticles silver-copper as additives to the lubricants
used in the nodes of drill bits to decrease the friction coefficient thus decreasing
the tribocorrosive degradation of steel materials. Lubricant mixtures designed
based on the mentioned nanoparticles have been already verified at the Ltd
“Universal drilling equipment”.
The obtained data concerning the geometric and electronic structure of
modified zeolites with calcium and zinc ions were used during creation and
optimization of the inhibitory pigments composition based on zeolites and
nanostructured phosphates for polyurethane paint and varnish ground coatings,
which were introduced in the SEEC "Lvivanticor".
Finally, the correlation dependencies established between the electronic
structure of phosphate-containing rhamnolipid compositions and their inhibitory
properties have been used in the testing and optimization of the composition of
novel ecologically safe corrosion inhibitors based on ramnolipidic bio-surfactant in
the LP SPC“Galicia”.
