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

Hyeonseok Lee, Suil In, Mark W. Horn

Research output: Contribution to journalArticlepeer-review

11 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 languageEnglish (US)
Pages (from-to)105-110
Number of pages6
JournalThin Solid Films
Volume565
DOIs
StatePublished - Aug 28 2014

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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