Thomas Freese, Jelmer T. Meijer, Matteo Miola, Paolo P. Pescarmona and Ben L. Feringa
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引用次数: 0
Abstract
Hydrogen peroxide (H2O2) is a valuable green oxidant with a wide range of applications. Furthermore, it is recognized as a possible future energy carrier achieving safer operation, storage and transportation. The photochemical production of H2O2 serves as a promising alternative to the waste- and energy-intensive anthraquinone process. Following green and sustainable chemistry principles, we demonstrated a sustainable photocatalyst utilizing earth-abundant iron and biobased sources only. These iron oxide nanoparticles (FeOx NPs) facilitated effective H2O2 production under batch conditions. Here, through the design of a modular photo-flow reactor, we achieved continuous and enhanced production of H2O2 by minimizing Fenton degradation. After detailed investigation of Fenton chemistry, we designed a reactor tailored to optimize the performance of our catalyst system. Optimal reaction conditions balancing production and energy efficiencies allowed a remarkable increase in production of >14× and productivity by >3× when compared to batch conditions. The produced H2O2 was concentrated to 0.02 wt% via rotary evaporation, approaching commercially relevant concentrations. The reactor design also allowed other chemical transformations, such as photoclick chemistry, as well as the processing of biomass waste into valuable products.
期刊介绍:
Sustainable Energy & Fuels will publish research that contributes to the development of sustainable energy technologies with a particular emphasis on new and next-generation technologies.