Prof. Nikolay K.Zaytsev
Russian Academy of the Technical Science, Russia
Title:
Abstract:
The electrochemistry at the
interface of the two immiscible electrolyte solutions (i.e.
water-nitrobenzene) remains a rather limited field in the general scope of
electrochemistry. However it provides the possibility for the electroanalytical
determination of ions normally considered to be electroinactive in the sense of
electron exchange. However many ions of this type readily cross the ITIES,
which can be quantitatively registered measuring the ionic current through the
interface. In the present study we applied the microperforated with the
femtosecond laser PET film for the stabilization of the interface (Fig. 1).
The electrochemical cell was driven by a 4-electrode potentiostat Ecotest-VA4,
the organic electrolyte was the o-nitrophenyl octyl ether with 10 mM tetrakisdecylammonium
tetrakis (clorophenyl)boranate as the supporting electrolyte. The organic phase
was placed into a Teflon cylinder, the perforated membrane was attached to its
bottom and the cylinder was inserted into the aqueous phase, containing MgSO4 as the supporting electrolyte. The reference electrodes in the aqueous phase
was the saturated silver chloride electrode and the silver tetrakis
(clorophenyl)boranate electrode was used in the organic phase. The auxillary
electrodes in the both phases were platinum wires.
Perchlorate-ion is one of ions difficult to
reduce and impossible to oxidize. However the applied technique readily
provides the analytical response as the ion flow across ITIES (Fig. 2).
The above technique was successfully applied to determination of ions used in
the lithium accumulators, that is BF4-, PF6- and AsF6- and also to some other ions as ReO4-,
TcO4- and several cations. The ion flow signal of TcO4- was never observed before the present study.
Biography:
Nikolay K. Zaytsev was born in 1954 in Moscow,
the USSR. Graduated from the Chemical Department of the Moscow Lomonosov
University in 1976, finished the postgraduate course and made his PhD in the
field of photonics in 1979 at the Chair of Chemical Kinetics, headed by Prof.
Semenov, the Nobel Prize winner. In the period from 1979 till 1992 he worked in
the same University and in the Institute of Chemical Physics of the Russian
Academy of Science in the field electrochemistry at the interface of two
immiscible electrolyte solutions (ITIES). In 1993-1995 worked in the Kalsruhe
University (Germany, Alexander-von-Humboldt granting) in the field of water
purification. In 1996-2012 he worked in the Gubkin University of Natural Oil
and Gas, Moscow and made his Dr.Sci.Thesis and got the professor position in
2005. In the period of from 2016 till 2021 he was a Chief of the Chair of
Energetics in the Moscow Institute of Radioelectronics and Automatics and there
got a title of Professor. In 2021 was invited a corresponding member of the
Russian Academy of the Natural Science. In 2024 was invited also a
corresponding member of the Russian Academy of the Technical Science. At the
present time is an invited professor (Academician) in China for 3 years (Talents, the Category
A).
In 2000 founded in Moscow, Russia, a company
called Econix-Expert Ltd (siteionomer.ru), manufacturing the electronic
instruments for the chemical analyses of water, food, soil and natural oil,
operating mainly electrochemically and optically. At the present time remains
the owner and the General Director of the company. The author/coauthor of about
120 scientific articles, three books and 16 patents.