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Electrocatalysis of the reduction of O_2 to H_2O by tetraruthenated cobalt meso-tetrakis(4-pyridyl)porphyrin adsorbed on graphite electrodes

Shi, Chunnian and Anson, Fred C. (1992) Electrocatalysis of the reduction of O_2 to H_2O by tetraruthenated cobalt meso-tetrakis(4-pyridyl)porphyrin adsorbed on graphite electrodes. Inorganic Chemistry, 31 (24). pp. 5078-5083. ISSN 0020-1669. doi:10.1021/ic00050a029. https://resolver.caltech.edu/CaltechAUTHORS:20180319-154249507

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Abstract

Coordination of Ru(NH_3)_5 groups to the four pyridine sites in cobalt meso-tetrakis(4-pyridyl)porphyrin adsorbed on pyrolytic graphite electrodes produces the tetraruthenated complex which acts as a catalyst for the four-electron reduction of O_2 to H_2O. The adsorbed catalyst, prepared by this heterogeneous coordination reaction, yields higher catalytic reduction rates than those obtained previously when the same catalyst was prepared within Nafion coatings on electrodes. The coordination chemistry used in the preparation of the adsorbed catalyst and its behavior as an electrocatalyst are described.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/ic00050a029DOIArticle
https://pubs.acs.org/doi/abs/10.1021/ic00050a029PublisherArticle
Alternate Title:Electrocatalysis of the reduction of molecular oxygen to water by tetraruthenated cobalt meso-tetrakis(4-pyridyl)porphyrin adsorbed on graphite electrodes
Additional Information:© 1992 American Chemical Society. Received June 25, 1992. Numerous enlightening discussions with Dr. Beat Steiger were very helpful to us. This work was supported by ONR/DARPA and by the National Science Foundation.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
NSFUNSPECIFIED
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Other Numbering System NameOther Numbering System ID
Caltech Arthur Amos Noyes Laboratory of Chemical Physics8656
Issue or Number:24
DOI:10.1021/ic00050a029
Record Number:CaltechAUTHORS:20180319-154249507
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180319-154249507
Official Citation:Electrocatalysis of the reduction of molecular oxygen to water by tetraruthenated cobalt meso-tetrakis(4-pyridyl)porphyrin adsorbed on graphite electrodes. Chunnian Shi and Fred C. Anson. Inorganic Chemistry 1992 31 (24), 5078-5083. DOI: 10.1021/ic00050a029
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85367
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:26 Mar 2018 22:04
Last Modified:15 Nov 2021 20:28

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