Collective photothermal effect of Al2O3‐supported spheroidal plasmonic Ru nanoparticle catalysts in the sunlight‐powered Sabatier reaction

Roos Grote, Roberto Habets, Jelle Rohlfs, Francesc Sastre, Nicole Meulendijks, Man Xu, Marcel A. Verheijen, Ken Elen, An Hardy, Marlies K. van Bael, Tim den Hartog (Corresponding author), Pascal Buskens (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Plasmon catalysis is an interesting technology concept for powering chemical processes with light. Here, we report the use of various Al2O3‐supported Ru spheroidal nanoparticles as catalyst for the low‐temperature conversion of CO2 and H2 to CH4 (Sabatier reaction), using sunlight as energy source. At high loadings of Ru spheroidal nanoparticles (5.9% w/w), we observe a sharp increase in the rate of the sunlight powered reaction when compared to the reaction in dark at the same catalyst bed temperature. Based on our results we exclude plasmon coupling as cause, and attribute the rate enhancement to collective photothermal heating of the Al2O3‐ supported Ru nanoparticles.
Original languageEnglish
Pages (from-to)5618-5622
Number of pages5
JournalChemCatChem
Volume12
Issue number22
DOIs
Publication statusPublished - 19 Nov 2020

Keywords

  • Sabatier reaction
  • carbon dioxide
  • collective photothermal effect
  • plasmon catalysis
  • sunlight

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