A Permselective CeOx Coating Improves the Stability of Oxygen Evolution Electrocatalysts

Handle URI:
http://hdl.handle.net/10754/626315
Title:
A Permselective CeOx Coating Improves the Stability of Oxygen Evolution Electrocatalysts
Authors:
Obata, Keisuke; Takanabe, Kazuhiro ( 0000-0001-5374-9451 )
Abstract:
Highly active NiFeOx electrocatalysts for the oxygen evolution reaction (OER) suffer gradual deactivation with time due to the loss of Fe species from the active sites into solution during catalysis. Here, we describe the anodic deposition of a CeOx layer that prevents the loss of such Fe species from the OER catalysts, achieving a highly stable performance. The CeOx layer does not affect the OER activity of the catalyst underneath but exhibits unique permselectivity, allowing the permeation of OH- and O2 through while preventing the diffusion of redox ions through the layer to function as a selective O2-evolving electrode. The use of such permselective protective layer provides a new strategy for improving the durability of electrocatalysts.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division
Citation:
Obata K, Takanabe K (2017) A Permselective CeOx Coating Improves the Stability of Oxygen Evolution Electrocatalysts. Angewandte Chemie International Edition. Available: http://dx.doi.org/10.1002/anie.201712121.
Publisher:
Wiley-Blackwell
Journal:
Angewandte Chemie International Edition
Issue Date:
5-Dec-2017
DOI:
10.1002/anie.201712121; 10.1002/ange.201712121
Type:
Article
ISSN:
1433-7851
Sponsors:
The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). The authors appreciate the kind assistance of Dr. J. Bau at KAUST for TEM images.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1002/anie.201712121/abstract
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorObata, Keisukeen
dc.contributor.authorTakanabe, Kazuhiroen
dc.date.accessioned2017-12-07T13:16:38Z-
dc.date.available2017-12-07T13:16:38Z-
dc.date.issued2017-12-05en
dc.identifier.citationObata K, Takanabe K (2017) A Permselective CeOx Coating Improves the Stability of Oxygen Evolution Electrocatalysts. Angewandte Chemie International Edition. Available: http://dx.doi.org/10.1002/anie.201712121.en
dc.identifier.issn1433-7851en
dc.identifier.doi10.1002/anie.201712121en
dc.identifier.doi10.1002/ange.201712121en
dc.identifier.urihttp://hdl.handle.net/10754/626315-
dc.description.abstractHighly active NiFeOx electrocatalysts for the oxygen evolution reaction (OER) suffer gradual deactivation with time due to the loss of Fe species from the active sites into solution during catalysis. Here, we describe the anodic deposition of a CeOx layer that prevents the loss of such Fe species from the OER catalysts, achieving a highly stable performance. The CeOx layer does not affect the OER activity of the catalyst underneath but exhibits unique permselectivity, allowing the permeation of OH- and O2 through while preventing the diffusion of redox ions through the layer to function as a selective O2-evolving electrode. The use of such permselective protective layer provides a new strategy for improving the durability of electrocatalysts.en
dc.description.sponsorshipThe research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). The authors appreciate the kind assistance of Dr. J. Bau at KAUST for TEM images.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/anie.201712121/abstracten
dc.rightsThis is the peer reviewed version of the following article: A Permselective CeOx Coating Improves the Stability of Oxygen Evolution Electrocatalysts, which has been published in final form at http://doi.org/10.1002/anie.201712121. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.en
dc.subjectEnergy conversionen
dc.subjectOxygen evolutionen
dc.subjectElectrochemistryen
dc.subjectHeterogeneous Catalysisen
dc.subjectWater Splittingen
dc.titleA Permselective CeOx Coating Improves the Stability of Oxygen Evolution Electrocatalystsen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalAngewandte Chemie International Editionen
dc.eprint.versionPost-printen
kaust.authorObata, Keisukeen
kaust.authorTakanabe, Kazuhiroen
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