Shi, Chunnian and Anson, Fred C. (1998) (5,10,15,20-Tetramethylporphyrinato)cobalt(II): A Remarkably Active Catalyst for the Electroreduction of O_2 to H_2O. Inorganic Chemistry, 37 (5). pp. 1037-1043. ISSN 0020-1669. doi:10.1021/ic971255p. https://resolver.caltech.edu/CaltechAUTHORS:20180525-140420261
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Abstract
Unlike most simple, monomeric cobalt porphyrins, the cobalt tetramethylporphyrin identified in the title catalyzes the electroreduction of O_2 to H_2O instead of H_2O_2. On graphite electrodes, coatings of the porphyrin prepared by irreversible adsorption from chloroform solutions catalyze the electroreduction of O_2 in aqueous HClO_4 at unusually positive potentials. Both the title porphyrin and the corresponding unsubstituted cobalt porphine are argued to derive their activity as four-electron reduction catalysts from their propensity to form dimers (or higher aggregates) in solution and, presumptively, on the surface of graphite electrodes.
| Item Type: | Article | |||||||||
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| Alternate Title: | (5,10,15,20-Tetramethylporphyrinato)cobalt(II): A Remarkably Active Catalyst for the Electroreduction of O2 to H2O | |||||||||
| Additional Information: | © 1998 American Chemical Society. Received October 10, 1997. This work was supported by the National Science Foundation. Dr. Beat Steiger contributed a number of very helpful suggestions. | |||||||||
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| Issue or Number: | 5 | |||||||||
| DOI: | 10.1021/ic971255p | |||||||||
| Record Number: | CaltechAUTHORS:20180525-140420261 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180525-140420261 | |||||||||
| Official Citation: | (5,10,15,20-Tetramethylporphyrinato)cobalt(II): A Remarkably Active Catalyst for the Electroreduction of O2 to H2O Chunnian Shi and Fred C. Anson Inorganic Chemistry 1998 37 (5), 1037-1043 DOI: 10.1021/ic971255p | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 86639 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 29 May 2018 14:41 | |||||||||
| Last Modified: | 15 Nov 2021 20:40 |
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