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Information × Registration Number 0211U005754, 0111U004362 , R & D reports Title Physical and chemical principles of forming of stable platinum binary nanoparticles and prediction of their corrosive stability in the environments of low temperature fuel cell popup.stage_title Head Pokhmurskii Vasyl Ivanovych, Registration Date 28-12-2011 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 We have proposed a corrosive dissolution model of the platinum binary nanocluster surface (100) of the PtnXm (X=Cr,Fe,Co,Ni,Ru) shell structure in acid environment of low temperature fuel cells with the content of molecules and ions of H2O, Cl-, OH-, H3O+, based on adsorption properties calculation for the component interaction with the surface, as well as activation energies of platinum atoms dissolution by means of quantum-chemical method PM6 and DFT. Physico-chemical regularities were established for the structural and energetical degradation of binary nanocluster surfaces for Pt42X13 of different composition under the influence of acid environment. It was shown that transition metals in the core of this nanocluster influence sufficiently on its adsorption behavior and the stability against corrosive destruction. Thus our binary nanocluster Pt42Co13 is stable to the influence of hydrated chloride ions because of its lower adsorption heat as compared with pure platinum nanocluster - the fact is explained by the increased electron density in four-fold positions of its surface. Product Description popup.authors Копилець Володимир Іванович Корній Сергій Андрійович popup.nrat_date 2020-04-02 Close