Er-pH and Er-mKOH Diagrams for Nickel at 25 °C

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Title:Er-pH and Er-mKOH Diagrams for Nickel at 25 °C
Creators:
Balej, Jan
Divisek, Jiri
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 62, 5, pp. 696-708
Uncontrolled Keywords:<i>E</i><sub>r</sub>-pH diagram, Nickel oxide electrodes, <i>E</i><sub>r</sub>-<i>m</i><sub>KOH</sub> diagram

Abstract

Based on the conclusion that no Ni(III) oxo compounds can exist in oxidized nickel oxide electrodes with the total oxidation number 2.0 &lt; <i>z</i><sub>Ni</sub> &lt; approx. 3.6 and that non-ideal solid solutions with a formal composition (1 - <i>X</i><sub>2</sub>) Ni(OH)<sub>2</sub>.<i>X</i><sub>2</sub>NiO<sub>2</sub>. <i>x</i>H<sub>2</sub>O are involved, <i>E</i><sub>r</sub>-pH and <i>E</i><sub>r</sub>-<i>m</i><sub>KOH</sub> diagrams at 25 °C were calculated and graphically represented using the thermodynamic standard data determined for hypothetical NiO<sub>2</sub>.<i>x </i>H<sub>2</sub>O. The calculations were performed assuming <i>a</i>H<sub>2</sub>O = 1 in the entire pH range (<i>E</i><sub>r</sub>-pH diagram) and considering the true water activity in KOH solutions of various concentrations (<i>E</i><sub>r</sub>-<i>m</i><sub>KOH</sub> diagram).

Title:Er-pH and Er-mKOH Diagrams for Nickel at 25 °C
Creators:
Balej, Jan
Divisek, Jiri
Uncontrolled Keywords:<i>E</i><sub>r</sub>-pH diagram, Nickel oxide electrodes, <i>E</i><sub>r</sub>-<i>m</i><sub>KOH</sub> diagram
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:62
Number:5
Page Range:pp. 696-708
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19970696UNSPECIFIED
ID Code:1151
Item Type:Article
Deposited On:06 Feb 2009 17:07
Last Modified:06 Feb 2009 16:07

Citation

Balej, Jan; Divisek, Jiri (1997) Er-pH and Er-mKOH Diagrams for Nickel at 25 °C. Collection of Czechoslovak Chemical Communications, 62 (5). pp. 696-708. ISSN 0010-0765

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