Orienting oxygen vacancies for fast catalytic reaction

Hyoungjeen Jeen; Zhonghe Bi; Woo Seok Choi; Matthew F. Chisholm; Craig A. Bridges; M. Parans Paranthaman; Ho Nyung Lee

doi:10.1002/adma.201302919

Orienting oxygen vacancies for fast catalytic reaction

Hyoungjeen Jeen
, Zhonghe Bi
, Woo Seok Choi
, Matthew F. Chisholm
, Craig A. Bridges
, M. Parans Paranthaman
, Ho Nyung Lee

Research output: Contribution to journal › Article › peer-review

105 Scopus citations

Abstract

A strategy to enhance the catalytic activity at the surface of an oxide thin film is unveiled through epitaxial orientation control of the surface oxygen vacancy concentration. By tuning the direction of the oxygen vacancy channels (OVCs) in the brownmillerite SrCoO_2.5, a 100-fold improvement in the oxygen reduction kinetics is realized in an epitaxial thin film that has the OVCs open to the surface.

Original language	English
Pages (from-to)	6459-6463
Number of pages	5
Journal	Advanced Materials
Volume	25
Issue number	44
DOIs	https://doi.org/10.1002/adma.201302919
State	Published - Nov 26 2013

Keywords

brownmillerite
oxygen reduction reaction
pulsed laser epitaxy
solid oxide fuel cells
strontium cobaltite

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10.1002/adma.201302919

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title = "Orienting oxygen vacancies for fast catalytic reaction",

abstract = "A strategy to enhance the catalytic activity at the surface of an oxide thin film is unveiled through epitaxial orientation control of the surface oxygen vacancy concentration. By tuning the direction of the oxygen vacancy channels (OVCs) in the brownmillerite SrCoO2.5, a 100-fold improvement in the oxygen reduction kinetics is realized in an epitaxial thin film that has the OVCs open to the surface.",

keywords = "brownmillerite, oxygen reduction reaction, pulsed laser epitaxy, solid oxide fuel cells, strontium cobaltite",

author = "Hyoungjeen Jeen and Zhonghe Bi and Choi, \{Woo Seok\} and Chisholm, \{Matthew F.\} and Bridges, \{Craig A.\} and Paranthaman, \{M. Parans\} and Lee, \{Ho Nyung\}",

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doi = "10.1002/adma.201302919",

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T1 - Orienting oxygen vacancies for fast catalytic reaction

AU - Jeen, Hyoungjeen

AU - Bi, Zhonghe

AU - Choi, Woo Seok

AU - Chisholm, Matthew F.

AU - Bridges, Craig A.

AU - Paranthaman, M. Parans

AU - Lee, Ho Nyung

PY - 2013/11/26

Y1 - 2013/11/26

N2 - A strategy to enhance the catalytic activity at the surface of an oxide thin film is unveiled through epitaxial orientation control of the surface oxygen vacancy concentration. By tuning the direction of the oxygen vacancy channels (OVCs) in the brownmillerite SrCoO2.5, a 100-fold improvement in the oxygen reduction kinetics is realized in an epitaxial thin film that has the OVCs open to the surface.

AB - A strategy to enhance the catalytic activity at the surface of an oxide thin film is unveiled through epitaxial orientation control of the surface oxygen vacancy concentration. By tuning the direction of the oxygen vacancy channels (OVCs) in the brownmillerite SrCoO2.5, a 100-fold improvement in the oxygen reduction kinetics is realized in an epitaxial thin film that has the OVCs open to the surface.

KW - brownmillerite

KW - oxygen reduction reaction

KW - pulsed laser epitaxy

KW - solid oxide fuel cells

KW - strontium cobaltite

UR - https://www.scopus.com/pages/publications/84888643162

U2 - 10.1002/adma.201302919

DO - 10.1002/adma.201302919

M3 - Article

AN - SCOPUS:84888643162

SN - 0935-9648

VL - 25

SP - 6459

EP - 6463

JO - Advanced Materials

JF - Advanced Materials

IS - 44

ER -

Orienting oxygen vacancies for fast catalytic reaction

Abstract

Keywords

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