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- W4233188093 abstract "The direct hydroxylation of benzene with nitrous oxide was studied over two HZSM-5 zeolites and over ferrisilicalite. HZSM-5 zeolite was dealuminated with (NH4)2SiF6 as described previously, with steam treatment, with high-temperature calcination, and with steam treatment and subsequent acid wash. Furthermore one sample was exchanged with aqueous Fe(NO3)3, treated with Na2S2O4, and acid-washed. The samples were characterized with regard to their elemental composition and textural, structural, and acid–base properties, using a variety of methods such ICP-AES, XRD, BET, NMR, FTIR, and 1H and 27Al MAS NMR. The catalytic performance was correlated to acid–base and textural properties of all the materials. Samples treated with (NH4)2SiF6, according to a method developed in our laboratory, combined high activity with excellent resistance to deactivation compared to the other examined materials." @default.
- W4233188093 created "2022-05-12" @default.
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- W4233188093 date "2004-10-25" @default.
- W4233188093 modified "2023-10-16" @default.
- W4233188093 title "(NH4)2SiF6-modified ZSM-5 as catalysts for direct hydroxylation of benzene with N2O2. A comparative study with ferrisilicalite and dealuminated and iron-exchanged ZSM-5" @default.
- W4233188093 doi "https://doi.org/10.1016/s0021-9517(04)00339-2" @default.
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