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Spectral radiative analysis of bio-inspired H 2 production in a benchmark photoreactor: A first investigation using spatial photonic balance

Abstract : The iron–thiolate complex [Fe2(μ-bdt)CO6] (bdt = 1,2-benzenedithiolate) is a simplified model of the active site of diiron hydrogenase enzymes. Here, we describe the implementation of this noble-metal-free catalyst in aqueous solutions using eosin Y as photosensitizer and triethylamine as an electron donor in an experimental bench specially designed for the study of H2 photoproduction. The bench is composed of an adjustable visible light source, a fully equipped flat torus photoreactor and analytical devices. Rates of H2 production under varied experimental conditions were obtained from an accurate measurement of pressure increase. A spectral radiative analysis involving blue photons of the source primarily absorbed has been carried out. Results have proven the rate of H2 production is proportional to the mean volumetric rate of radiant light absorbed demonstrating a linear thermokinetic coupling. The bio-inspired catalyst has proven non-limiting and reveals interesting capabilities for future large scale H2 production.
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https://hal.univ-brest.fr/hal-01830881
Contributor : Nicolas Renard <>
Submitted on : Thursday, July 5, 2018 - 2:11:19 PM
Last modification on : Wednesday, September 11, 2019 - 2:14:07 PM

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Caroline Supplis, Fabrice Gros, Ghiles Dahi, Jérémi Dauchet, Matthieu Roudet, et al.. Spectral radiative analysis of bio-inspired H 2 production in a benchmark photoreactor: A first investigation using spatial photonic balance. International Journal of Hydrogen Energy, Elsevier, 2018, 43 (17), pp.8221 - 8231. ⟨10.1016/j.ijhydene.2018.03.097⟩. ⟨hal-01830881⟩

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