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Electrocatalytic Hydrogen Evolution in Acidic Water with Molecular Cobalt Tetraazamacrocycles

McCrory, Charles C. L. and Uyeda, Christopher and Peters, Jonas C. (2012) Electrocatalytic Hydrogen Evolution in Acidic Water with Molecular Cobalt Tetraazamacrocycles. Journal of the American Chemical Society, 134 (4). pp. 3164-3170. ISSN 0002-7863. https://resolver.caltech.edu/CaltechAUTHORS:20120417-113331818

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Abstract

A series of water-soluble molecular cobalt complexes of tetraazamacrocyclic ligands are reported for the electrocatalytic production of H2 from pH 2.2 aqueous solutions. The comparative data reported for this family of complexes shed light on their relative efficiencies for hydrogen evolution in water. Rotating disk electrode voltammetry data are presented for each of the complexes discussed, as are data concerning their respective pH-dependent electrocatalytic activity. In particular, two diimine–dioxime complexes were identified as exhibiting catalytic onset at comparatively low overpotentials relative to other reported homogeneous cobalt and nickel electrocatalysts in aqueous solution. These complexes are stable at pH 2.2 and produce hydrogen with high Faradaic efficiency in bulk electrolysis experiments over time intervals ranging from 2 to 24 h.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/ja210661kDOIArticle
http://pubs.acs.org/doi/abs/10.1021/ja210661kPublisherArticle
ORCID:
AuthorORCID
McCrory, Charles C. L.0000-0001-9039-7192
Uyeda, Christopher0000-0001-9396-915X
Peters, Jonas C.0000-0002-6610-4414
Additional Information:© 2012 American Chemical Society. Published In Issue February 15, 2012; Article ASAP February 06, 2012; Just Accepted Manuscript January 12, 2012; Received: November 12, 2011. Financial support for this work was provided by an NSF Center for Chemical Innovation (CHE-0802907).
Group:CCI Solar Fuels
Funders:
Funding AgencyGrant Number
NSFCHE-0802907
Issue or Number:4
Record Number:CaltechAUTHORS:20120417-113331818
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20120417-113331818
Official Citation:Electrocatalytic Hydrogen Evolution in Acidic Water with Molecular Cobalt Tetraazamacrocycles Charles C. L. McCrory, Christopher Uyeda, and Jonas C. Peters Journal of the American Chemical Society 2012 134 (6), 3164-3170
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:30135
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:17 Apr 2012 20:59
Last Modified:03 Oct 2019 03:47

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