INTERACTION OF OXYGEN WITH MOLTEN ALKALI CHLORIDES / SMIRNOV MV,TKACHEVA OY // ELECTROCHIMICA ACTA. - 1992. - V. 37, l. 15. - P. 2681-2690.

ISSN/EISSN:

0013-4686 / нет данных

Type:

Article

Abstract:

It was shown by acidometric and iodometric titration of the reduction products of oxygen on a platinum cathode that the oxygen electrode exchanges not only oxide (O2-) but also peroxide (O-2(2-)) and superoxide (O2-) ions with molten NaCl, KCl and CsCl. The emf of the cells with oxygen and chlorine electrodes: O2 (g), Pt\textbackslash{}M2O + M2O + MO2 + MCl(melt)\textbackslash{}MCl(melt)\textbackslash{}C, Cl2(g), where M is Na, K or Cs, was measured as a function of temperature, gas pressure on its electrodes and the total concentration of M2O + M2O2 + MO2. It was established that the coefficient B in empirical equations epsilon = Const - B ln P(O2) is a constant equal to 0.028 +/- 003 V. It is independent of temperature and electrolyte composition, which shows that n in the theoretical expression B = RT/nF does not depend on temperature (n < 4). An original technique of determining mole fraction of M2O, M2O2 and MO2 in the products of cathodic reduction of oxygen was developed. It enabled the expressions of temperature dependences to be derived from experimental observations for conditional standard potentials of the oxygen electrode: E(O2/O2-){*

Author keywords:

MOLTEN ALKALI CHLORIDES; OXYGEN ELECTRODE; OXIDE; PEROXIDE; SUPEROXIDE IONS

DOI:

10.1016/0013-4686(92)85193-O

Web of Science ID:

ISI:A1992JU27100001

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	DEC
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB
Language	English
Research-Areas	Electrochemistry
Web-of-Science-Categories	Electrochemistry
Number-of-Cited-References	5
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	5
Journal-ISO	Electrochim. Acta
Doc-Delivery-Number	JU271