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Title: | Sunlight Powered Continuous Flow Reverse Water Gas Shift Process Using a Plasmonic Au/TiO2 Nanocatalyst | Authors: | Molina, Pau Martinez Bossers, Koen W. Wienk, Jelle D. Rohlfs, Jelle Meulendijks, Nicole Verheijen, Marcel A. BUSKENS, Pascal Sastre, Francesc |
Issue Date: | 2023 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | Chemistry-An Asian Journal, 18 (14) , p. e202300405 | Abstract: | The continuous flow reverse water gas shift (rWGS) process was efficiently catalyzed by a plasmonic Au/TiO2 nanocatalyst using sunlight as sole and sustainable energy source. The influence of the catalyst bed thickness on the CO production rate was studied, and three different catalytic regimes were identified as direct plasmon catalysis (DPC), shielded plasmon catalysis (SPC) and unused plasmon catalysis (UPC). The CO2:H-2 ratio was optimized to 4:1 and a maximum CO production rate of 7420 mmol.m(-2).h(-1) was achieved under mild reaction conditions (p=3.5 bar, no external heating, E-e=14.0 kW.m(-2)), corresponding to an aparent quantum efficiency of 4.15%. The stability of the Au/TiO2 catalyst was studied for 110 h continuous operation, maintaining more than 82% of the initial CO production rate. On/off experiments mimicking discontinuous sunlight powered processing furthermore showed that the Au/TiO2 catalyst was stable for 8 consecutive runs. | 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;photochemistry;reverse Water gas Shift flow;solar light;surface plasmon resonance | Document URI: | http://hdl.handle.net/1942/40532 | ISSN: | 1861-4728 | e-ISSN: | 1861-471X | DOI: | 10.1002/asia.202300405 | ISI #: | 001000534800001 | Rights: | 2023 The Authors. Chemistry - An Asian Journal published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial pur | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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Chemistry An Asian Journal - 2023 - Mart nez Molina.pdf | Published version | 831.67 kB | Adobe PDF | View/Open |
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