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- W4308326733 abstract "Abstract Nanocomposites comprised of MoO 3 nanobelts with Cu 6 Mo 5 O 18 derived surface layers are very active for propylene oxidation to acrolein with selectivity approaching 60% between 350–400 °C. They offer high surface areas (∼18 m 2 g −1 ) and yield acrolein formation rates exceeding those of unpromoted bismuth molybdates which are the basis of industrial catalysts. Their acrolein selectivity is also markedly higher than that of the Cu 2+ molybdates α‐CuMoO 4 and Cu 3 Mo 2 O 9 . XPS and TPR analyses point to the formation of a Cu + containing molybdate on the MoO 3 nanobelt surfaces which is identified as Cu 6 Mo 5 O 18 by its unique Raman bands. Kinetic analyses suggest that this surface layer facilitates catalyst re‐oxidation which remains the rate‐determining step of acrolein formation over the nanocomposites up to 400 °C. Thus, the nanocomposites present a very efficient copper molybdate catalyst design for propylene oxidation to acrolein which is also less susceptible to carbon induced deactivation than bulk Cu 2+ molybdates." @default.
- W4308326733 created "2022-11-11" @default.
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- W4308326733 date "2022-11-24" @default.
- W4308326733 modified "2023-10-12" @default.
- W4308326733 title "Propylene Oxidation to Acrolein over Cu/MoO<sub>3</sub> Nanobelt Composites" @default.
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- W4308326733 doi "https://doi.org/10.1002/cnma.202200415" @default.
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