Synthesis and Characterization of CoAPO11 Molecular Sieve from a Nonaqueous System*

CoAPO11 molecular sieve with a high crystallinity was prepared by hydrothermal synthesis from a nonaqueous system(EG) in the presence of Et2NH or iPr2NH as a structuredirecting agent. The Xray diffraction(XRD) patterns and scanning electron micrographs(SEM) revealed that the product powder was pure and homogenous in particlesize. The Xray powder diffraction data, compositional analysis, thermal stability analysis and UVVis diffuse reflectance spectroscopic analysis showed that Co() ions were incorporated in the aluminophosphate framework and tetrahedrally coordinated in the lattice of asprepared samples.