title: A Simple Approach To Develop Tailored Mesoporosity in Nanostructured Heteropolysalts.
abstract: In this study, we describe a very simple approach to the development of tailored mesoporosity in any nanostructured heteropolysalt with control over both the mesoporous volume and the pore size. This approach, which consists in the treatment of a solid microporous precursor with a basic agent, has been tested on the ammonium salt of the Keggin-type [PMo12O40]3-heteropolyanion and constitutes a novel procedure for the preparation of mesoporous solids with no precedents. The results obtained in this study allow two main conclusions to be drawn: 1) the micro- and mesoporous structures in the heteropolysalt nanoparticles are independent from each other and 2) the development of mesoporosity in the solid material must be related to a process of alkaline degradation within the core of the nanocrystals that aggregate into the particles. These results afford valuable additional information to the present model of porosity that has been established for heteropolysalts.
authors.affiliation: Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Alicante, P.O. Box 99, 03080, Alicante, Spain.
authors.forename: Juan
authors.initials: J
authors.lastname: Alcañiz-Monge
authors.affiliation: Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Alicante, P.O. Box 99, 03080, Alicante, Spain.
authors.forename: Guido
authors.initials: G
authors.lastname: Trautwein
authors.affiliation: Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Alicante, P.O. Box 99, 03080, Alicante, Spain.
authors.forename: Bouchra
authors.initials: B
authors.lastname: El Bakkali
authors.affiliation: Institute for Advanced Materials (InaMat), Universidad Pública de Navarra, Edificio Jerónimo de Ayanz, Campus de Arrosadia, 31006, Pamplona, Spain.
authors.forename: Santiago
authors.initials: S
authors.lastname: Reinoso
keywords: adsorption; electron microscopy; mesoporous materials; microporous materials; polyoxometalates