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  • 1
    ISSN: 1572-879X
    Keywords: Oxygen isotope exchange ; Pt electrode ; solid oxide electrolyte ; oxygen pumping ; NEMCA phenomena
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Homomolecular oxygen exchange on Pt electrode in a zirconia electrochemical cell was studied. It was found that the current passing through the cell (O2− pumping through the electrolyte) does not change the rate of oxygen exchange on the Pt electrode with respect to its open circuit value, a fact that indicates that the strength of the chemisorptive bond of oxygen on the Pt electrode is invariant under open and closed circuit conditions.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 47 (1992), S. 327-331 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследован гомомолекулярный обмен кислорода на Pt злектроде в ячейке16O2+18O2, Pt|ZrO2 (10 мол.% Y2O3)|Pt, воздух. Показано, что пропускание тока через ячейку (откачка или подача кислорода в виде O2− через злектролит) не изменяет скорость обмена кислорода по сравнению со скоростью, полученной при разомкнутой цепи ячейки. Этот факт свидетельствует о том, что протекание тока через ячейку не влияет на прочность связи адсорбированного на Pt электроде кислорода и, тем самым, дает основание полагать, что сушествуюшие представления о природе нефарадеевской электрохимической модификации.
    Notes: Abstract Studies of homomolecular oxygen exchange over a Pt electrode in an electrochemical cell $$^{16} O_2 + ^{18} O_2 ,{\text{ }}Pt\left| {ZrO_2 {\text{ }}(10{\text{ }}mol.\% {\text{ }}Y_2 O_3 )} \right|Pt,{\text{ }}air$$ show that an electric current passing through the cell (a flow of O2− anions through the electrolyte) does not change the rate of exchange with respect to its open circuit value. This fact indicates that passing electric current does not affect the bond strength of oxygen adsorbed on the Pt electrode. This suggests that the present concept about the nature of the non-Faradaic electrochemical modification of catalytic activity [1] is to be specified.
    Type of Medium: Electronic Resource
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