Highly n-Type Titanium Oxide as an Electronically Active Support for Platinum in the Catalytic Oxidation of Carbon Monoxide

L. Robert Baker; Antoine Hervier; Hyungtak Seo; Griffin Kennedy; Kyriakos Komvopoulos; Gabor A. Somorjai

doi:10.1021/jp203151y

Highly n-Type Titanium Oxide as an Electronically Active Support for Platinum in the Catalytic Oxidation of Carbon Monoxide

L. Robert Baker, Antoine Hervier, Hyungtak Seo, Griffin Kennedy, Kyriakos Komvopoulos, Gabor A. Somorjai

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

35 Scopus citations

Abstract

The role of the oxide-metal interface in determining the activity and selectivity of chemical reactions catalyzed by metal particles on an oxide support is an important topic in science and industry. A proposed mechanism for this strong metal-support interaction is electronic activation of surface adsorbates by charge carriers. Motivated by the goal of using electronic activation to drive nonthermal chemistry, we investigated the ability of the oxide support to mediate charge transfer. We report an approximately 2-fold increase in the turnover rate of catalytic carbon monoxide oxidation on platinum nanoparticles supported on stoichiometric titanium dioxide (TiO2) when the TiO2 is made highly n-type by fluorine (F) doping. However, for nonstoichiometric titanium oxide (TiOX

Original language	English (US)
Pages (from-to)	16006-16011
Number of pages	6
Journal	The Journal of Physical Chemistry C
Volume	115
Issue number	32
DOIs	https://doi.org/10.1021/jp203151y
State	Published - Jul 27 2011
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Deposition and processing of titanium oxide films took place in the Marvell Nanolab at the University of California, Berkeley (UCB). X-ray photoelectron spectroscopy and scattering electron microscopy took place in the Molecular Foundry at Lawrence Berkeley National Lab. This work was funded by the Helios Solar Energy Research Center and by the Chemical Sciences Division, which are supported by the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 and by the UCB-KAUST Academic Excellence Alliance (AEA) Program.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

Access to Document

10.1021/jp203151y

Cite this

@article{eb01b0362d564d2bae82d578bf228a55,

title = "Highly n-Type Titanium Oxide as an Electronically Active Support for Platinum in the Catalytic Oxidation of Carbon Monoxide",

abstract = "The role of the oxide-metal interface in determining the activity and selectivity of chemical reactions catalyzed by metal particles on an oxide support is an important topic in science and industry. A proposed mechanism for this strong metal-support interaction is electronic activation of surface adsorbates by charge carriers. Motivated by the goal of using electronic activation to drive nonthermal chemistry, we investigated the ability of the oxide support to mediate charge transfer. We report an approximately 2-fold increase in the turnover rate of catalytic carbon monoxide oxidation on platinum nanoparticles supported on stoichiometric titanium dioxide (TiO2) when the TiO2 is made highly n-type by fluorine (F) doping. However, for nonstoichiometric titanium oxide (TiOX",

author = "Baker, {L. Robert} and Antoine Hervier and Hyungtak Seo and Griffin Kennedy and Kyriakos Komvopoulos and Somorjai, {Gabor A.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Deposition and processing of titanium oxide films took place in the Marvell Nanolab at the University of California, Berkeley (UCB). X-ray photoelectron spectroscopy and scattering electron microscopy took place in the Molecular Foundry at Lawrence Berkeley National Lab. This work was funded by the Helios Solar Energy Research Center and by the Chemical Sciences Division, which are supported by the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 and by the UCB-KAUST Academic Excellence Alliance (AEA) Program. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2011",

month = jul,

day = "27",

doi = "10.1021/jp203151y",

language = "English (US)",

volume = "115",

pages = "16006--16011",

journal = "The Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "32",

}

TY - JOUR

T1 - Highly n-Type Titanium Oxide as an Electronically Active Support for Platinum in the Catalytic Oxidation of Carbon Monoxide

AU - Baker, L. Robert

AU - Hervier, Antoine

AU - Seo, Hyungtak

AU - Kennedy, Griffin

AU - Komvopoulos, Kyriakos

AU - Somorjai, Gabor A.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Deposition and processing of titanium oxide films took place in the Marvell Nanolab at the University of California, Berkeley (UCB). X-ray photoelectron spectroscopy and scattering electron microscopy took place in the Molecular Foundry at Lawrence Berkeley National Lab. This work was funded by the Helios Solar Energy Research Center and by the Chemical Sciences Division, which are supported by the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 and by the UCB-KAUST Academic Excellence Alliance (AEA) Program. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2011/7/27

Y1 - 2011/7/27

N2 - The role of the oxide-metal interface in determining the activity and selectivity of chemical reactions catalyzed by metal particles on an oxide support is an important topic in science and industry. A proposed mechanism for this strong metal-support interaction is electronic activation of surface adsorbates by charge carriers. Motivated by the goal of using electronic activation to drive nonthermal chemistry, we investigated the ability of the oxide support to mediate charge transfer. We report an approximately 2-fold increase in the turnover rate of catalytic carbon monoxide oxidation on platinum nanoparticles supported on stoichiometric titanium dioxide (TiO2) when the TiO2 is made highly n-type by fluorine (F) doping. However, for nonstoichiometric titanium oxide (TiOX

AB - The role of the oxide-metal interface in determining the activity and selectivity of chemical reactions catalyzed by metal particles on an oxide support is an important topic in science and industry. A proposed mechanism for this strong metal-support interaction is electronic activation of surface adsorbates by charge carriers. Motivated by the goal of using electronic activation to drive nonthermal chemistry, we investigated the ability of the oxide support to mediate charge transfer. We report an approximately 2-fold increase in the turnover rate of catalytic carbon monoxide oxidation on platinum nanoparticles supported on stoichiometric titanium dioxide (TiO2) when the TiO2 is made highly n-type by fluorine (F) doping. However, for nonstoichiometric titanium oxide (TiOX

UR - http://hdl.handle.net/10754/598506

UR - https://pubs.acs.org/doi/10.1021/jp203151y

UR - http://www.scopus.com/inward/record.url?scp=80051735111&partnerID=8YFLogxK

U2 - 10.1021/jp203151y

DO - 10.1021/jp203151y

M3 - Article

SN - 1932-7447

VL - 115

SP - 16006

EP - 16011

JO - The Journal of Physical Chemistry C

JF - The Journal of Physical Chemistry C

IS - 32

ER -

Highly n-Type Titanium Oxide as an Electronically Active Support for Platinum in the Catalytic Oxidation of Carbon Monoxide

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this