Studies on oxygen reduction in molten NaOH

Hidetaka Hayashi, Shiro Yoshizawa, Yasuhiko Ito

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Oxygen reduction in molten NaOH at 623 K has been studied by the use of an Ni rotating disk electrode and a porous O2 gas electrode. It was clarified that the diffusing species to the electrode surface is molecular oxygen itself, and not an oxygen-containing anion, such as O2- 2, by limiting current measurements. Kinetic studies show that the following reaction mechanism is more probable: {A figure is presented} where the latter is rate determining. Since H2O transport to the electrode surface is rate determining, pO2- control is especially important, taking into account the following equilibrium; {A figure is presented}.

Original languageEnglish
Pages (from-to)149-153
Number of pages5
JournalElectrochimica Acta
Volume28
Issue number2
DOIs
Publication statusPublished - 1983
Externally publishedYes

Fingerprint

Molten materials
Oxygen
Electrodes
Molecular oxygen
Rotating disks
Electric current measurement
Anions
Negative ions
Gases
Kinetics

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

Studies on oxygen reduction in molten NaOH. / Hayashi, Hidetaka; Yoshizawa, Shiro; Ito, Yasuhiko.

In: Electrochimica Acta, Vol. 28, No. 2, 1983, p. 149-153.

Research output: Contribution to journalArticle

Hayashi, H, Yoshizawa, S & Ito, Y 1983, 'Studies on oxygen reduction in molten NaOH', Electrochimica Acta, vol. 28, no. 2, pp. 149-153. https://doi.org/10.1016/0013-4686(83)85101-9
Hayashi, Hidetaka ; Yoshizawa, Shiro ; Ito, Yasuhiko. / Studies on oxygen reduction in molten NaOH. In: Electrochimica Acta. 1983 ; Vol. 28, No. 2. pp. 149-153.
@article{cc8b24b97ff44db3b67b5467845235e1,
title = "Studies on oxygen reduction in molten NaOH",
abstract = "Oxygen reduction in molten NaOH at 623 K has been studied by the use of an Ni rotating disk electrode and a porous O2 gas electrode. It was clarified that the diffusing species to the electrode surface is molecular oxygen itself, and not an oxygen-containing anion, such as O2- 2, by limiting current measurements. Kinetic studies show that the following reaction mechanism is more probable: {A figure is presented} where the latter is rate determining. Since H2O transport to the electrode surface is rate determining, pO2- control is especially important, taking into account the following equilibrium; {A figure is presented}.",
author = "Hidetaka Hayashi and Shiro Yoshizawa and Yasuhiko Ito",
year = "1983",
doi = "10.1016/0013-4686(83)85101-9",
language = "English",
volume = "28",
pages = "149--153",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - Studies on oxygen reduction in molten NaOH

AU - Hayashi, Hidetaka

AU - Yoshizawa, Shiro

AU - Ito, Yasuhiko

PY - 1983

Y1 - 1983

N2 - Oxygen reduction in molten NaOH at 623 K has been studied by the use of an Ni rotating disk electrode and a porous O2 gas electrode. It was clarified that the diffusing species to the electrode surface is molecular oxygen itself, and not an oxygen-containing anion, such as O2- 2, by limiting current measurements. Kinetic studies show that the following reaction mechanism is more probable: {A figure is presented} where the latter is rate determining. Since H2O transport to the electrode surface is rate determining, pO2- control is especially important, taking into account the following equilibrium; {A figure is presented}.

AB - Oxygen reduction in molten NaOH at 623 K has been studied by the use of an Ni rotating disk electrode and a porous O2 gas electrode. It was clarified that the diffusing species to the electrode surface is molecular oxygen itself, and not an oxygen-containing anion, such as O2- 2, by limiting current measurements. Kinetic studies show that the following reaction mechanism is more probable: {A figure is presented} where the latter is rate determining. Since H2O transport to the electrode surface is rate determining, pO2- control is especially important, taking into account the following equilibrium; {A figure is presented}.

UR - http://www.scopus.com/inward/record.url?scp=0020705148&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0020705148&partnerID=8YFLogxK

U2 - 10.1016/0013-4686(83)85101-9

DO - 10.1016/0013-4686(83)85101-9

M3 - Article

VL - 28

SP - 149

EP - 153

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

IS - 2

ER -