Dioxygen fixation by a cobalt(II)-ammoniacal complex and its electroreduction in a nafion coated solid-state three-electrode cell

Armand Bettelheim; Rachel Harth; Dan Ozer; Raphael Ydgar

doi:10.1039/C39900000521

Dioxygen fixation by a cobalt(II)-ammoniacal complex and its electroreduction in a nafion coated solid-state three-electrode cell

Armand Bettelheim, Rachel Harth, Dan Ozer, Raphael Ydgar

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The reduction potential for the Co^II-NH₃-O ₂ system at a glassy-carbon electrode in a solid-state Nafion-coated cell is about 800 mV more positive than obtained for a glassy-carbon-Nafion film electrode when immersed in an aqueous solution containing Co^II, ammonia, and dioxygen (+0.3 and -0.5 V vs. Ag/AgCl, respectively); this is attributed to two different electrode reactions: reduction of [(NH ₃)₅Co-O₂-Co(NH₃)₅] ⁴⁺ in the absence of a contacting liquid electrolyte solution and free O₂ in aqueous Co^II-ammoniacal solution.

Original language	English
Pages (from-to)	521-522
Number of pages	2
Journal	Chemical Communications
Issue number	7
DOIs	https://doi.org/10.1039/C39900000521
State	Published - 1 Dec 1990
Externally published	Yes

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Molecular Medicine

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title = "Dioxygen fixation by a cobalt(II)-ammoniacal complex and its electroreduction in a nafion coated solid-state three-electrode cell",

abstract = "The reduction potential for the CoII-NH3-O 2 system at a glassy-carbon electrode in a solid-state Nafion-coated cell is about 800 mV more positive than obtained for a glassy-carbon-Nafion film electrode when immersed in an aqueous solution containing CoII, ammonia, and dioxygen (+0.3 and -0.5 V vs. Ag/AgCl, respectively); this is attributed to two different electrode reactions: reduction of [(NH 3)5Co-O2-Co(NH3)5] 4+ in the absence of a contacting liquid electrolyte solution and free O2 in aqueous CoII-ammoniacal solution.",

author = "Armand Bettelheim and Rachel Harth and Dan Ozer and Raphael Ydgar",

year = "1990",

month = dec,

day = "1",

doi = "10.1039/C39900000521",

language = "English",

pages = "521--522",

journal = "Chemical Communications",

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publisher = "Royal Society of Chemistry",

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T1 - Dioxygen fixation by a cobalt(II)-ammoniacal complex and its electroreduction in a nafion coated solid-state three-electrode cell

AU - Bettelheim, Armand

AU - Harth, Rachel

AU - Ozer, Dan

AU - Ydgar, Raphael

PY - 1990/12/1

Y1 - 1990/12/1

N2 - The reduction potential for the CoII-NH3-O 2 system at a glassy-carbon electrode in a solid-state Nafion-coated cell is about 800 mV more positive than obtained for a glassy-carbon-Nafion film electrode when immersed in an aqueous solution containing CoII, ammonia, and dioxygen (+0.3 and -0.5 V vs. Ag/AgCl, respectively); this is attributed to two different electrode reactions: reduction of [(NH 3)5Co-O2-Co(NH3)5] 4+ in the absence of a contacting liquid electrolyte solution and free O2 in aqueous CoII-ammoniacal solution.

AB - The reduction potential for the CoII-NH3-O 2 system at a glassy-carbon electrode in a solid-state Nafion-coated cell is about 800 mV more positive than obtained for a glassy-carbon-Nafion film electrode when immersed in an aqueous solution containing CoII, ammonia, and dioxygen (+0.3 and -0.5 V vs. Ag/AgCl, respectively); this is attributed to two different electrode reactions: reduction of [(NH 3)5Co-O2-Co(NH3)5] 4+ in the absence of a contacting liquid electrolyte solution and free O2 in aqueous CoII-ammoniacal solution.

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U2 - 10.1039/C39900000521

DO - 10.1039/C39900000521

M3 - Article

AN - SCOPUS:37049083154

SN - 0022-4936

SP - 521

EP - 522

JO - Chemical Communications

JF - Chemical Communications

IS - 7

ER -

Dioxygen fixation by a cobalt(II)-ammoniacal complex and its electroreduction in a nafion coated solid-state three-electrode cell

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