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Electrochemistry of Mixed Oxygen Ion and Electron Conducting Electrodes in Solid Electrolyte Cells

Chueh, William C. and Haile, Sossina M. (2012) Electrochemistry of Mixed Oxygen Ion and Electron Conducting Electrodes in Solid Electrolyte Cells. Annual Review of Chemical and Biomolecular Engineering, 3 . pp. 313-341. ISSN 1947-5438. https://resolver.caltech.edu/CaltechAUTHORS:20121018-130715045

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Abstract

Mixed ion and electron conductors (MIECs) have garnered increased attention as active components in the electrodes of solid oxide electrolyzers (for electricity to fuel conversion) and especially of solid oxide fuel cells (for fuel to electricity conversion). Although much of the work in the literature is directed toward the understanding of oxygen electroreduction on the surfaces of MIECs, more recent studies also explore the role of these materials in fuel electrooxidation. In both cases, the rich chemical and electronic behaviors of MIECs imply a broad range of possible reaction pathways. We highlight the significant progress that has been made in elucidating these pathways through well-designed experimental and computational studies. At the macroscopic level, patterned electrode studies enable identification of active sites, whereas at the microscopic level, surface-sensitive techniques in combination with atomistic-level simulations are beginning to reveal the nature of the rate-determining step(s) and enable rational design of materials with enhanced activity.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1146/annurev-chembioeng-073009-101000 DOIArticle
http://www.annualreviews.org/doi/abs/10.1146/annurev-chembioeng-073009-101000PublisherArticle
ORCID:
AuthorORCID
Haile, Sossina M.0000-0002-5293-6252
Additional Information:© 2012 by Annual Reviews. First published online as a Review in Advance on April 5, 2012. W.C.C. was supported by an appointment to the Sandia National Laboratories Truman Fellowship in National Security Science and Engineering, sponsored by Sandia Corporation (a wholly owned subsidiary of Lockheed Martin Corporation) as Operator of Sandia National Laboratories under its U.S. Department of Energy Contract No. DE-AC04-94AL85000. S.M.H. was supported by the National Science Foundation (NSF) under contract number DMR-0604004. Additional support was provided by the NSF through the Caltech Center for the Science and Engineering of Materials, a Materials Research Science and Engineering Center (DMR-0520565).
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC04-94AL85000
NSFDMR-0604004
NSFDMR-0520565
Record Number:CaltechAUTHORS:20121018-130715045
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20121018-130715045
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34976
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Oct 2012 21:49
Last Modified:03 Oct 2019 04:24

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