کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
42266 45918 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An FT-IR study of the adsorption and reactivity of tert-butyl hydroperoxide over oxide catalysts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
An FT-IR study of the adsorption and reactivity of tert-butyl hydroperoxide over oxide catalysts
چکیده انگلیسی

The adsorption of tert-butyl hydroperoxide over zirconia, alumina, vanadia–zirconia and vanadia–alumina catalysts from gas phase has been investigated by FT-IR spectroscopy. The formation of surface tert-butylperoxide species has been observed. These species give rise to different kinds of transformation, producing surface tert-butoxide, formate, acetate and acetone species, to which correspond gas-phase acetone, methanol, isobutene, water and (probably) oxygen. Surface vanadyl species are involved in this chemistry and enhance the rate of these reactions.

The adsorption of tert-butyl hydroperoxide over zirconia, alumina, vanadia–zirconia and vanadia–alumina catalysts from gas phase has been investigated by FT-IR spectroscopy. The formation of surface tert-butylperoxide species has been observed. These species give rise to different kinds of transformation, producing surface tert-butoxide, formate, acetate and acetone species, to which correspond gas-phase acetone, methanol, isobutene, water and (probably) oxygen. Surface vanadyl species are involved in this chemistry and enhance the rate of these reactions.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 369, Issues 1–2, 15 November 2009, Pages 27–35
نویسندگان
, , , ,