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Materials 2018, 11(11), 2134;

Carbon Dioxide Hydrogenation by Means of Plasmonic Resonance Activation in Silica Aerogel Media

BioEcoUVa, Bioeconomy Research Institute, High Pressure Processes Group, Department of Chemical Engineering and Environmental Technology, University of Valladolid, C/Prado de la Magdalena s/n, 47011 Valladolid, Spain
Institute for Micro Process Engineering, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
Author to whom correspondence should be addressed.
Received: 29 September 2018 / Revised: 24 October 2018 / Accepted: 25 October 2018 / Published: 30 October 2018
(This article belongs to the Special Issue Aerogels: Synthesis, Characterization and Application)
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Surface Plasmon Resonance can be used to activate zinc oxide/copper catalysts in order to perform the carbon dioxide hydrogenation reaction by means of light energy, avoiding high-temperature processes. The synthesis and impregnation methods have been designed to fill glass microreactors with ZnO/Cu nanoparticles supported on transparent silica aerogels to maximize the light absorbed by the catalyst. A LED device surrounding the glass microreactors provided white light to activate the catalyst homogeneously throughout the reactor. Temperature, pressure, amount of catalyst and gases flow were studied as possible variables to enhance the process trying to maximize CO2 conversion rates, achieving the best results working at high pressures. The use of transparent SiO2 Aerogels as supports for photocatalytic gas phase reactions even under high-pressure conditions is demonstrated. View Full-Text
Keywords: CO2 hydrogenation; photocatalysis; surface plasmon resonance; solar fuels CO2 hydrogenation; photocatalysis; surface plasmon resonance; solar fuels

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Muñoz, S.; Navarrete, A.; Martín, Á.; Dittmeyer, R.; Cocero, M.J. Carbon Dioxide Hydrogenation by Means of Plasmonic Resonance Activation in Silica Aerogel Media. Materials 2018, 11, 2134.

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