DiaCat - Diamond materials for the photocatalytic conversion of carbon dioxide

Schematic representation of the conversion of carbon dioxide to fine chemicals / fuels by the dissolved electrons released by diamond materials under irradiation.
© Fraunhofer IAF
Schematic representation of the conversion of carbon dioxide to fine chemicals / fuels by the dissolved electrons released by diamond materials under irradiation.

The multinational collaborative project DiaCat aims to develop a completely new technology for the direct photocatalytic conversion of CO2 into fine chemicals and fuels using visible light. The innovative approach utilizes the unique property of man-made diamond, now widely available at low economic cost, to generate solvated electrons in aqueous solutions and ionic liquids upon light irradiation. These solvated electrons induce the photocatalytic conversion of CO2.

Project title DiaCat – Diamond materials for the photocatalytic conversion of CO2 to fine chemicals and fuels using visible light  
Project duration 2015 – 2019  
Funding source European Union  
Project partners
  • University of Würzburg
  • French Alternative Energies and Atomic Energy Commission
  • Fraunhofer-Gesellschaft
  • University of Oxford
  • Uppsala University
  • Helmholtz-Zentrum Berlin
  • Ionic Liquids Technologies
  • GABO:mi
 
Project manager Dr. Peter Knittel  
Goals
  • Optimum diamond material and liquid media for photocatalytic reduction
  •  Definition of electrolyte for maximum CO2 incorporation
  • Definition of optimum surface termination and light source for emission of solvated electrons into aqueous solutions.
  • Demonstrator of reactor for CO2 conversion using visible light.
 
Publication Dye-Sensitization of Boron-Doped Diamond Foam: Champion Photoelectrochemical Performance of Diamond Electrodes under Solar Light Illumination
Hana Krysova, Ladislav Kavan, Zuzana Vlckova Zivcova, Weng Siang Yeap, Pieter Verstappen, Wouter Maes, Ken Haenen, Fang Gao, Christoph E. Nebel
RSC Advances, 2015(5), 81069-81077
 

This project has received funding from the European Union.