Plasmonic enhancement of CO2 conversion to methane using sculptured copper thin films grown directly on TiO2

Hyeonseok Lee; Suil In; Mark W. Horn

doi:10.1016/j.tsf.2014.06.035

Plasmonic enhancement of CO₂ conversion to methane using sculptured copper thin films grown directly on TiO₂

Hyeonseok Lee
, Suil In
, Mark W. Horn

Department of Energy and Science and Engineering

Pennsylvania State University

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

15 Scopus citations

Abstract

Columnar Cu nanostructures with tunable lengths are formed directly on porous TiO₂ by oblique-angle electron beam evaporation and used as a cocatalyst for photocatalytic conversion of CO₂ to methane. A remarkable enhancement in methane production rate is measured using the sculptured copper films with a maximum of 124.3 ppm · cm^{- 2} · h^{- 1} for 160 nm long Cu columnar structures under AM 1.5 illumination. This high methane production rate is attributed to a plasmonic enhancement effect due to the columnar Cu nanostructures.

Original language	English
Pages (from-to)	105-110
Number of pages	6
Journal	Thin Solid Films
Volume	565
DOIs	https://doi.org/10.1016/j.tsf.2014.06.035
State	Published - 28 Aug 2014

Bibliographical note

Funding Information:
This research was supported by the U.S. Army Research Office and U.S. Army Research Laboratory under Cooperative Agreement No. W911NF-0-2-0026 and Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT and Future Planning (2013R1A1A1008678). This publication was also supported by the Pennsylvania State University Materials Research Institute Nanofabrication Lab and the National Science Foundation Cooperative Agreement No. ECS-0335765. The authors thank The authors thank Dr. Raymond Schaak and Joshua McEnaney for helpful discussions and for the use of laboratory space and equipment.

Keywords

CO2 conversion
Plasmonic effect
Sculptured thin films

Access to Document

10.1016/j.tsf.2014.06.035

Cite this

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title = "Plasmonic enhancement of CO2 conversion to methane using sculptured copper thin films grown directly on TiO2",

abstract = "Columnar Cu nanostructures with tunable lengths are formed directly on porous TiO2 by oblique-angle electron beam evaporation and used as a cocatalyst for photocatalytic conversion of CO2 to methane. A remarkable enhancement in methane production rate is measured using the sculptured copper films with a maximum of 124.3 ppm · cm- 2 · h- 1 for 160 nm long Cu columnar structures under AM 1.5 illumination. This high methane production rate is attributed to a plasmonic enhancement effect due to the columnar Cu nanostructures.",

keywords = "CO2 conversion, Plasmonic effect, Sculptured thin films",

author = "Hyeonseok Lee and Suil In and Horn, \{Mark W.\}",

note = "Funding Information: This research was supported by the U.S. Army Research Office and U.S. Army Research Laboratory under Cooperative Agreement No. W911NF-0-2-0026 and Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT and Future Planning (2013R1A1A1008678). This publication was also supported by the Pennsylvania State University Materials Research Institute Nanofabrication Lab and the National Science Foundation Cooperative Agreement No. ECS-0335765. The authors thank The authors thank Dr. Raymond Schaak and Joshua McEnaney for helpful discussions and for the use of laboratory space and equipment.",

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AU - Lee, Hyeonseok

AU - In, Suil

AU - Horn, Mark W.

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Y1 - 2014/8/28

N2 - Columnar Cu nanostructures with tunable lengths are formed directly on porous TiO2 by oblique-angle electron beam evaporation and used as a cocatalyst for photocatalytic conversion of CO2 to methane. A remarkable enhancement in methane production rate is measured using the sculptured copper films with a maximum of 124.3 ppm · cm- 2 · h- 1 for 160 nm long Cu columnar structures under AM 1.5 illumination. This high methane production rate is attributed to a plasmonic enhancement effect due to the columnar Cu nanostructures.

AB - Columnar Cu nanostructures with tunable lengths are formed directly on porous TiO2 by oblique-angle electron beam evaporation and used as a cocatalyst for photocatalytic conversion of CO2 to methane. A remarkable enhancement in methane production rate is measured using the sculptured copper films with a maximum of 124.3 ppm · cm- 2 · h- 1 for 160 nm long Cu columnar structures under AM 1.5 illumination. This high methane production rate is attributed to a plasmonic enhancement effect due to the columnar Cu nanostructures.

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KW - Plasmonic effect

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