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Effect of Template Removal Methods on Physical Properties and Catalytic Performance of Co-HMS

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With Co(OAc)2 as Co source and hexadecylamine (HDA) as template, cobalt-containing hexagonal mesoporous silicas (Co-HMS) was successfully synthesized by a one-step co-condensation route at ambient temperature. Two different methods (calcination and solvent extraction) were separately utilized to remove the template molecules, and the effects on physical properties and application performance were studied in detail using the characterization of XRD, N2 adsorption–desorption, TEM, FT-IR, UV-vis diffuse reflectance techniques and catalytic activity measurement, respectively. The results showed that solvent extraction was more favorable for mesoporous structure maintaining. And in the liquid-phase oxidation of hydrocarbons, higher activities were obtained with Co-HMS-E being used.
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Keywords: CO-HMS; EFFECT; TEMPLATE REMOVAL

Document Type: Research Article

Publication date: 2009-02-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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