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- W2034959009 abstract "The catalytic properties of manganese oxide octahedral molecular sieve materials (OMS-2) with different metal cation dopants (M: Cu2+, Zn2+, Ni2+, Co2+, Al2+, or Mg2+) were investigated for the reaction of 2-propanol decomposition. Compared with other M–OMS-2 catalysts, Cu–OMS-2 catalyst has much higher conversion of 2-propanol and the highest selectivity to acetone at 300°C. As for the selectivity to propene, it is generally below 6% for M–OMS-2 materials. The reaction results are discussed in consideration of characterization results of M–OMS-2 catalysts, especially studies on their acidity and basicity, and suggest that dehydrogenation of 2-propanol is not simply catalyzed by basic or acidic and basic pair sites, but probably by active sites with redox and basic properties. In situ FTIR studies suggest that Cu–OMS-2 has more active sites for 2-propanol than Al–OMS-2 and K–OMS-2. The phase transitions from cryptomelane to hausmannite and finally to manganosite were observed with XRD studies of Cu–OMS-2 catalysts during reaction. All Cu–OMS-2 materials that either have the cryptomelane, amorphous MnOy, hausmannite, or manganosite structure show activity in the decomposition of 2-propanol to acetone. The Cu–OMS-2 materials with the hausmannite structure show the highest activity." @default.
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- W2034959009 date "2001-01-01" @default.
- W2034959009 modified "2023-09-27" @default.
- W2034959009 title "Catalytic Decomposition of 2-Propanol over Different Metal-Cation-Doped OMS-2 Materials" @default.
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- W2034959009 doi "https://doi.org/10.1006/jcat.2000.3063" @default.
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