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A Spectroscopic Study of Group IV Transition-Metal-Incorporated Direct Templated Mesoporous Catalysts. Part 2. A Comparison of Ti-, Zr- and Hf-Containing Materials |
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| Authors: | Enrica Gianotti Maria E Raimondi Leonardo Marchese Gianmario Martra Thomas Maschmeyer John M Seddon Salvatore Coluccia |
| Affiliation: | (1) Dipartimento di Chimica IFM, Università di Torino, Via P. Giuria 7, I-10125 Torino, Italy;(2) Department of Chemistry, Imperial College, London, SW7 2AY, UK;(3) Dipartimento di Scienze e Tecnologie Avanzate, Università del Piemonte Orientale  A, Avogadro , c.so Borsalino, 54, 15100 Alessandria, Italy;(4) Waterman Institute, Laboratory for Applied Organic Chemistry and Catalysis, TU Delft, Julianalaan 136, 2628 BL Delft, The Netherlands |
| Abstract: | Ti, Zr and Hf ions have been incorporated into mesoporous silica using a novel one-pot procedure based on the true liquid crystal templating (TLCT) synthesis method. The nature of the metallic sites was assessed using diffuse reflectance UV-visible, photoluminescence and FT-IR spectroscopy. In situ adsorption of oxygen and ammonia probe molecules provided information on the accessibility of optically active species. |
| Keywords: | true liquid crystal templating Ti Zr and Hf incorporated into mesoporous silica FT-IR DR UV-vis photoluminescence |
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