On the mechanism of the electrochemical reduction of TcO 4−1 ion on platinum cathode in sulphuric acid solutions

V. Spitsyn; A. Kuzina; A. Oblova; M. Glinkina; L. Stepovaya

doi:10.1007/bf02516993

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 30: Issue 2

On the mechanism of the electrochemical reduction of TcO ₄⁻¹ ion on platinum cathode in sulphuric acid solutions

Authors:

V. Spitsyn

V. Spitsyn Institute of Physical Chemistry of the Academy of Sciences of the USSR Moscow (USSR)

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A. Kuzina

A. Kuzina Institute of Physical Chemistry of the Academy of Sciences of the USSR Moscow (USSR)

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A. Oblova

A. Oblova Institute of Physical Chemistry of the Academy of Sciences of the USSR Moscow (USSR)

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M. Glinkina

M. Glinkina Institute of Physical Chemistry of the Academy of Sciences of the USSR Moscow (USSR)

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L. Stepovaya

L. Stepovaya Institute of Physical Chemistry of the Academy of Sciences of the USSR Moscow (USSR)

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Pages:: 561–566

Online Publication Date:: 09 Jan 2007

Publication Date:: 01 Sep 1976

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02516993

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Abstract

Electroreduction of oxygen-containing anions of the elements of VII group of periodic table, in particular, technetium is a very complicated process. The structure of electron shells of technetium 4d⁶ 5s¹ (s^9/2), allows some oxidation states from +7 to −1, and shows the tendency to hydrolysis, disproportionation and to complex formation. Heptavalent state with d⁰-electron configuration and low tendency to reduction is characteristic for technetium and rhenium. We have studied the products of electroreduction of ion TcO ₄⁻ from sulphurous acid solutions of pertechnetate on platinum cathode using electrophoresis, methods of classic preparation chemistry, electron and vibratory spectroscopy. As a result we have succeeded in the isolation of the products of electrochemical reactions, identification and explaining some features of the process connected with the formation of metalic technetium and intermediate complex forms of reduced technetium.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)