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Electrodeposited metal materials with developed surface for catalytic applications

Name
Romanov
Surname
Aleksei
Scientific organization
ITMO University / Ioffe Institute / Togliatti State University
Academic degree
Dr. Phys.-Math. Sci.
Position
Head of Modern Functional Materials Chair / Principal Researcher / Head of the Laboratory
Scientific discipline
New materials, Manufacturing technologies & Processes
Topic
Electrodeposited metal materials with developed surface for catalytic applications
Abstract
We discuss the original methods for the creation of the metal materials with developed surface based on icosahedral small particles (ISPs). We study individual ISPs, coatings and bulk materials made of ISPs. The basic physical idea of the approach consists in the transformation of the stored in ISPs internal energy into the energy of the developed surface. Structural phase transformations and evolution of surface morphology of ISPs and materials based on them in temperature fields and aggressive environments, is discussed in details.
Keywords
developed surface, electrodeposition, metal microparticels, catalysis
Summary

Electrodeposited metal materials with developed surface for catalytic applications

A.A. Vikarchuk1, M.V. Dorogov1, A.N. Priezzheva1, N.N. Gryzunova1, A.E. Romanov1,2,3

1 Togliatti State University, Togliatti, Russia;

2 ITMO University, St. Petersburg, Russia;

3 Ioffe Physical-Technical Institute RAS, St. Petersburg, Russia.

 

Metal materials with developed surface are widely used as catalysts, filters, sorbent materials in chemical, gas, and petrochemical technologies, water treatment and disposal, as well as in other industries. In particular, 90% of chemical goods in the World is made using catalysts, the production of which has now reached 800000 tons per year. 

One of the most important characteristics of such materials is the specific surface area. It strongly influeneces the catalytic activity and sorption capacity of the material. Therefore, the development and production of metals and their oxides with a developed surface is an actual problem.

In this report, we discuss the original methods for the creation of the metal materials with developed surface based on icosahedral small particles (ISPs). We study individual ISPs, coatings and bulk materials made of ISPs [1-3]. The basic physical idea of the approach consists in the transformation of the stored in ISPs internal energy into the energy of the developed surface. Structural phase transformations and evolution of surface morphology of ISPs and materials based on them in temperature fields and aggressive environments, is discussed in details [4-6].

References

[1] A.N. Abramova, M.V. Dorogov, S. Vlassov, I. Kink, L.M. Dorogin, R. Lohmus, A.E. Romanov, V.V. Vikarchuk,  "Nanowhiskers of copper oxide: fabrication technique, structural features, and mechanical properties", Materials Physics and Mechanics, 2014, vol. 19, No 1, pp. 88-95 /in Russian/.

[2] M.V. Dorogov, O.A. Dovzhenko, N.N. Gryzunova, A.A. Vikarchuk, A.E. Romanov, New functional materials based on nanо- and micro-objects with developed surface, Acta Physica Polonica A, 2015, vol.128, No 4, pp. 503-505.

[3] A. A. Vikarchuk, N. N. Gryzunova, M. V. Dorogov, A. N. Priezzheva, and A. E. Romanov, Functional metallic materials with fragmented structure and developed surface, Metal Science and Heat Treatment, 2016, vol. 58, Nos 1-2, p. 12-18.

[4] M.V. Dorogov, A.N. Abramova, S. Vlassov, I. Kink, E. Shulga, L.M. Dorogin, R. Lõhmus, M.N. Tyurkov, A.E. Romanov, A.A. Vikarchuk, "Phase and structural transformations in annealed copper coatings in relation to oxide whisker growth", Applied Surface Science, 2015, vol. 346, No 2, pp. 423-427.

[5] A.N. Priezzheva, M.V. Dorogov, M.N. Tyurkov, S. Vlassov, E. Shulga, R. Lohmus, L.M. Dorogin, I. Kink, D.L. Merson, A.A. Vikarchuk, A.E. Romanov, "Phase transformations in icosahedral small copper particles during their annealing in different gas media", Bulletin of the Russian Academy of Sciences. Physics, 2015, vol. 79, No 9, pp. 1098-1100.

[6] M.V. Dorogov, A.A. Vikarchuk, A.E. Romanov, Evolution of pentagonal nano- and micro-objects in temperature fields, Russian Physics Journal, 2015, vol. 58, No6, pp. 854-857.