Simultaneous non-invasive gas analysis in artificial photosynthesis reactions using rotational Raman spectroscopy. Issue 19 (1st September 2022)

• Record Type: Journal Article
• Authors: Schwarz, Jesper; Ilic, Aleksandra; Kaufhold, Simon; Ahokas, Jussi; Myllyperkiö, Pasi; Pettersson, Mika; Wärnmark, Kenneth
• Is Part Of: Sustainable energy & fuels. Volume 6:Issue 19(2022)
• Page Start: 4388
• Page End: 4392
• Publication Date: 2022-09-01
• Subjects: Renewable energy sources -- Periodicals; Fuel cells -- Periodicals; Electric batteries -- Periodicals; Electrochemistry -- Periodicals; 660.297
• DOI: 10.1039/d2se01119k
• Languages: English
• ISSNs: 2398-4902

Abstract

Abstract : A new instrument for gas analysis in artificial photosynthesis reactions is presented. The device uses rotational Raman spectroscopy to analyse multiple gases (H2, O2, N2, CO, CO2 ) simultaneously, non-invasively and with short analysis times (15 s). Abstract : Optimising reactions in artificial photosynthesis research requires screening of many reaction and operation parameters, which is often resource-intense and time-consuming. In this paper, we demonstrate the use of a rotational Raman-based spectrometer for non-invasive quantification of several gases (H2, O2, N2, CO, CO2 ) with short analysis times (15 s), enabling high throughput screening. Furthermore, with this device, reaction progress can be monitored in situ, by real-time simultaneous quantification of multiple gases. We have applied this instrument and developed a method to study the O2 dependency of a prototypic light-driven hydrogen evolution reaction, showcasing the value of this approach for the artificial photosynthesis community in general.