Composition and structure of pyrophoric nickel catalysts according to X-ray diffraction data


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Abstract

The properties of a nickel catalyst obtained by treatment of nickel–aluminum alloy with sodium hydroxide in the presence of H2O2 and additionally stabilized with increased pressure were studied. Additional stabilization decreased the catalyst activity by 25%, but gave a more distinct picture for an XRD analysis of the active catalyst surface and decreased the time of deactivation of the dehydrated catalyst with air oxygen. The catalyst stabilization was explained by the displacement of water, decrease in the pore size, and surface inhomogeneity.

About the authors

T. Yu. Osadchaya

Ivanovo State University of Chemical Technology

Email: afineevskiy@mail.ru
Russian Federation, Ivanovo

A. V. Afineevskii

Ivanovo State University of Chemical Technology

Author for correspondence.
Email: afineevskiy@mail.ru
Russian Federation, Ivanovo

D. A. Prozorov

Ivanovo State University of Chemical Technology

Email: afineevskiy@mail.ru
Russian Federation, Ivanovo

S. P. Kochetkov

Moscow State Technical University, Affiliation in Voskresensk

Email: afineevskiy@mail.ru
Russian Federation, Moscow oblast

R. N. Rumyantsev

Ivanovo State University of Chemical Technology

Email: afineevskiy@mail.ru
Russian Federation, Ivanovo

M. V. Lukin

Ivanovo State University of Chemical Technology

Email: afineevskiy@mail.ru
Russian Federation, Ivanovo

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