Journal
JOURNAL OF CATALYSIS
Volume 309, Issue -, Pages 325-332Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2013.10.004
Keywords
Direct synthesis; Hydrogen peroxide; Wall-coated microchannel; Au-Pd nanoparticles; Two-phase nanoparticle synthesis
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Funding
- Dutch National Research School Combination Catalysis Controlled by Chemical Design (NRSC-Catalysis).
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Hydrogen peroxide production via direct hydrogenation of molecular oxygen offers many challenges for both catalyst and reactor development to have a high selectivity. An important advantage of using a capillary channel microreactor is the possibility to use H-2/O-2 concentrations that would be considered explosive in traditional reactors. Au-Pd bimetallic catalysts prepared by impregnation or two-phase synthesis procedure were deposited in a form of thin catalytic film in a capillary microchannel. This coated catalyst performed identical to a comparable slurry catalyst tested in a classical batch autoclave. Operating the microreactor within what would have been the explosive regime in a conventional reactor results in a higher selectivity and productivity. (C) 2013 Elsevier Inc. All rights reserved.
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