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Co_3O_4 Nanoparticle Water-Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids

Blakemore, James D. and Gray, Harry B. and Winkler, Jay R. and Müller, Astrid M. (2013) Co_3O_4 Nanoparticle Water-Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids. ACS Catalysis, 3 (11). pp. 2497-2500. ISSN 2155-5435. http://resolver.caltech.edu/CaltechAUTHORS:20131205-085654384

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Abstract

Surfactant-free, size- and composition-controlled, unsupported, <5-nm, quantum-confined cobalt oxide nanoparticles with high electrocatalytic oxygen-evolution activity were synthesized by pulsed laser ablation in liquids. These crystalline Co_3O_4 nanoparticles have a turnover frequency per cobalt surface site among the highest ever reported for Co_3O_4 nanoparticle oxygen evolution catalysts in base and overpotentials competitive with the best electrodeposited cobalt oxides, with the advantage that they are suitable for mechanical deposition on photoanode materials and incorporation in integrated solar water-splitting devices.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/cs400639b DOIArticle
http://pubs.acs.org/doi/abs/10.1021/cs400639bPublisherArticle
ORCID:
AuthorORCID
Blakemore, James D.0000-0003-4172-7460
Winkler, Jay R.0000-0002-4453-9716
Additional Information:© 2013 American Chemical Society. Received: August 2, 2013; Revised: October 1, 2013; Published: October 3, 2013. We thank Richard P. Gerhart for fabrication of the electrochemical cell used for the oxygen-detection experiment, and Bryce F. Sadtler and Alasdair W. McDowall for help with TEM. Research was carried out in the Laser Resource Center and the Molecular Materials Research Center of the Beckman Institute of the California Institute of Technology. This work was supported by the NSF CCI Solar Fuels Program (CHE-1305124) and the Arnold and Mabel Beckman Foundation.
Group:CCI Solar Fuels
Funders:
Funding AgencyGrant Number
NSFCHE-1305124
Arnold and Mabel Beckman FoundationUNSPECIFIED
Subject Keywords:water splitting catalysis; cobalt oxide; electrochemistry; nanoparticles; quantum confinement; oxygen evolution
Record Number:CaltechAUTHORS:20131205-085654384
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20131205-085654384
Official Citation:Co3O4 Nanoparticle Water-Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids James D. Blakemore, Harry B. Gray, Jay R. Winkler, and Astrid M. Müller ACS Catalysis 2013 3 (11), 2497-2500
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42848
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:05 Dec 2013 17:33
Last Modified:05 Sep 2017 22:31

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