A scalable glass waveguide-based optofluidic photoreactor for converting CO2 to fuels (Conference Presentation)

Xiangkun Cao; Tao Hong; Tingwei Liu; Jessica Akemi; Tobias Hanrath; David Erickson

doi:10.1117/12.2546536

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10 March 2020 A scalable glass waveguide-based optofluidic photoreactor for converting CO₂ to fuels (Conference Presentation)

Xiangkun Cao, Tao Hong, Tingwei Liu, Jessica Akemi, Tobias Hanrath, David Erickson

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Proceedings Volume 11283, Integrated Optics: Devices, Materials, and Technologies XXIV; 112831N (2020) https://doi.org/10.1117/12.2546536
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Current research in CO2 catalytical conversion is usually conducted with single-pass lab-scale reactors. Operating conditions affecting catalyst performance optimized for these reactors were not necessarily transferrable for large scale applications. Herein we report a scalable optofluidic photoreactor based on glass waveguides coated with photocatalyst. Inside the “shell-and-tube” reactor design, tubes are replaced by internal light-guiding waveguides with specially designed scattering surfaces to enable deep and efficient penetration of the light irradiation. Using reverse water–gas shift (RWGS) as a pilot reaction, the effect of temperature, light irradiation and residence time on the photocatalytic activity of this photoreactor platform was examined.

Conference Presentation

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Xiangkun Cao, Tao Hong, Tingwei Liu, Jessica Akemi, Tobias Hanrath, and David Erickson "A scalable glass waveguide-based optofluidic photoreactor for converting CO₂ to fuels (Conference Presentation)", Proc. SPIE 11283, Integrated Optics: Devices, Materials, and Technologies XXIV, 112831N (10 March 2020); https://doi.org/10.1117/12.2546536

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