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Title: | Low Temperature Sunlight‐Powered Reduction of CO2 to CO Using a Plasmonic Au/TiO2 Nanocatalyst | Authors: | Molina, Pau Martinez Meulendijks, Nicole Xu, Man Verheijen, Marcel A. den Hartog, Tim BUSKENS, Pascal Sastre, Francesc |
Issue Date: | 2021 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | CHEMCATCHEM, 13 (21) , p. 4507-4513 | Abstract: | Sunlight-powered reduction of CO2 to fuels and chemicals is a promising strategy to close the carbon loop and facilitate the energy transition. In this research, we demonstrate that Au nanoparticles supported on TiO2 are an efficient plasmonic catalyst for the sunlight-powered reverse water-gas shift (rWGS) reaction. A maximum CO production rate of 429 mmol g(Au)(-1) h(-1) with a selectivity of 98 % and an apparent quantum efficiency of 4.7 % were achieved using mildly concentrated sunlight (1.44 W cm(-2) equals 14.4 sun). The CO production rate showed an exponential increase with increasing light intensity, suggesting that the process is mainly promoted by a photothermal effect. Thermal reference experiments with the same catalysts promoted CH4 formation, dropping the CO selectivity to 70 %. Thus, mildly concentrated sunlight can efficiently and selectively enhance the promotion of the rWGS reaction without using external heating. | Notes: | Buskens, P; Sastre, F (corresponding author), Netherlands Org Appl Sci Res TNO, High Tech Campus 25, NL-5656 AE Eindhoven, Netherlands.; Buskens, P (corresponding author), Hasselt Univ, Inst Mat Res Design & Synth Inorgan Mat DESINe, Agoralaan Bldg D, B-3590 Diepenbeek, Belgium. pascal.buskens@tno.nl; francesc.sastrecalabuig@tno.nl |
Keywords: | Carbon Dioxide;Reverse Water-Gas Shift;CO;solar light;Surface plasmon resonance;Photochemistry | Document URI: | http://hdl.handle.net/1942/35760 | ISSN: | 1867-3880 | e-ISSN: | 1867-3899 | DOI: | 10.1002/cctc.202100699 | ISI #: | 000697229200001 | Rights: | 2021 The Authors. ChemCatChem published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2022 |
Appears in Collections: | Research publications |
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ChemCatChem - 2021 - Mart nez Molina - Low Temperature Sunlight‐Powered Reduction of CO2 to CO Using a Plasmonic Au TiO2.pdf | Published version | 5.81 MB | Adobe PDF | View/Open |
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