Villaescusa Luis A, Li Jian, Gao Zihao, Sun Junliang, Camblor Miguel A
Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat de València-Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain.
CIBER de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Spain.
Angew Chem Int Ed Engl. 2020 Jul 6;59(28):11283-11286. doi: 10.1002/anie.202001740. Epub 2020 May 25.
IDM-1 is a new silica zeolite with an ordered and well-defined framework constructed by alternating pentasil layers and interrupted layers, giving rise to an intersecting system of straight medium pores and undulating extra-large lobed pores. This unique structure was solved by rotation electron diffraction and refined against synchrotron powder X-ray diffraction data. Despite the presence of both Si(OSi) (OH) and Si(OSi) (OH) sites, this new zeolite presents high thermal stability, withstanding calcination even to 1000 °C. The location of defects at specific sites of the structure results in alternating hydrophobic SiO and hydrophilic SiO (OH) intracrystalline regions. This peculiar combination of intersecting medium and extra-large pores and alternating regions of different chemical character may provide this zeolite with unique catalytic properties.
