Low-coordinated surface atoms of CuPt alloy cocatalysts on TiO2 for enhanced photocatalytic conversion of CO2

Sooho Lee, Sunil Jeong, Whi Dong Kim, Seokwon Lee, Kangha Lee, Wan Ki Bae, Jun Hyuk Moon, Sangheon Lee, Doh C. Lee

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

We report the photocatalytic conversion of CO2 to CH4 using CuPt alloy nanoclusters anchored on TiO2. As the size of CuPt alloy nanoclusters decreases, the photocatalytic activity improves significantly. Small CuPt nanoclusters strongly bind CO2 intermediates and have a stronger interaction with the TiO2 support, which also contributes to an increased CH4 generation rate. The alloying and size effects prove to be the key to efficient CO2 reduction, highlighting a strategic platform for the design of photocatalysts for CO2 conversion.

Original languageEnglish
Pages (from-to)10043-10048
Number of pages6
JournalNanoscale
Volume8
Issue number19
DOIs
StatePublished - 21 May 2016

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