Synthesis and characterization of CoAPO-11 Molecular sieve from a Non-aqueous System

摘要

CoAPO-11 molecularsieve with a high crystlallinity was prepared by hydrothermal synthesis from a non-aqueous system (EG) in the presence of Et_2NH or I-Pr_2NH as a structure-directing agent. The X-ay diffraction (XRD) patterns and scanning electron microraphs (SEM) revealed that the product powder was pure and homogenous in particle-size. The X-ray powder diffraction data, compositional analysis, thermal stability analysis and UV-Vis diffuse reflectance spectro- scopic analysis showed that Co(II) ions were incorporated in the aluminophosphate framework and tetrahedrally coordinated in the lattice of as-prepared samples.