Dr Aleksey Yerokhin is a Senior Research Fellow and the Head of Plasma Electrolysis Research Laboratory in the Department of Materials Science and Engineering at the University of Sheffield, UK. He is also a Visiting Professor at MISIS.

He graduated in Materials Science and Metallurgy from Tula State University, where he later obtained PhD in Engineering and worked as an Associate Professor, before taking on a position at in the Research Centre of Surface_ Engineering (Hull University, UK) directed by Professor Allan Matthews. He has also several years’ experience of working for industry.

Dr Yerokhin is renowned for his research in plasma-assisted electrolytic methods of surface_ modification and coating deposition, which has made major impact worldwide, resulting in breakthrough technological developments. Most recent work involves development of smart electrolytic plasma processes and methods of their diagnostic and control as well as new multifunctional coatings for advanced engineering materials, metal foams, photovoltaic and biomedical devices.

Dr Yerokhin authored over 200 scientific publications, including four books/chapters and five patents. His work has been cited over 4000 times (including 13 papers cited more than 100 times), making him arguably the most cited researcher in the field of plasma electrolysis. He is an assessor for several European National Research Councils. He has been involved in organisation of a number of scientific events, gave several Keynote and Invited lectures at major International Conferences and Congresses. He has edited eight special journal issues and collections of works. He is a member of the International Society of Electrochemistry, the American Ceramic Society and the Editorial Board Member for Surface_ and Coatings Technology (Elsevier) and the Russian Journal of Non-Ferrous Metals (Springer).

Nanostructured Materials and Surface_s Produced by Plasma Assisted Electrolytic Processes

A Yerokhin

Department of Materials Science and Engineering, University of Sheffield, United Kingdom




Безымянный6.jpgMethods for plasma-assisted electrolytic fabrication of nanomaterials and surface_ nanostructures on metal electrodes attract increasing interest in many practical fields. They rely upon generation of plasma discharge at the electrode-electrolyte interface_ during high-voltage electrolysis of aqueous solutions. Despite a range of impressive technological developments, the nature of electrolytic plasmas and mechanisms of their interaction with solid surface_s are not well understood. The first part of the talk will therefore provide an overview of recent research effort devoted to evaluation of the properties of plasma discharges generated at the electrode-electrolyte interface_, using both plasma-physics and electrochemical approaches. Associated insights into formation of surface_ nanostructures and implications for the process diagnostics and control will be considered. This will follow by the discussion of typical nanostructures formed in the surface_ layer due to plasma-assisted chemical conversion of the metal electrode or electrolytic synthesis and deposition of chemical compounds. Incorporation of nanoparticles in the surface_ layer from slurry electrolytes will also be addressed. Finally, a discussion will be developed to how nanostructured surface_s can modify properties of metallic substrates, leading to enhanced mechanical strength, chemical stability or additional functionality. Selected examples will be provided to illustrate key enabling features (e.g. performance enhancement, energy saving, multifunctionality and environmental impact) the electrolytic plasma processing and associated nanostructured surface_s allow to achieve in transportation, electronics, catalysis and biomedicine.

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