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Thermochemistry of Surfactant-Templating of USY Zeolite |
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| Authors: | Dr. Noemi Linares Dr. Erika De Oliveira Jardim Dr. Geetu Sharma Dr. Elena Serrano Prof. Alexandra Navrotsky Prof. Dr. Javier García-Martínez |
| Affiliation: | 1. Laboratorio de Nanotecnología Molecular, Departamento de Química Inorgánica, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, E-03690 Alicante, Spain;2. Peter A. Rock Thermochemistry Laboratory and NEAT ORU Department, University of California Davis Institution, Davis, CA, 95616 USA |
| Abstract: | With the aim of understanding the thermochemistry of the introduction of mesoporosity in zeolites by using surfactants, high temperature oxide melt solution calorimetry was used to determine the change in the enthalpy of formation of USY zeolite before and after the introduction of mesoporosity. Our results confirm that this process only slightly destabilizes the zeolite by the additional surface area. However, this can be overcome by the stabilizing effect of the interactions between the surfactant and the zeolite framework. |
| Keywords: | calorimetry enthalpy of formation hierarchical zeolites surfactant-templating thermochemistry |