Chemistry Letters, Vol.31, No.11, 1152-1153, 2002
UV Raman spectroscopy for characterization of chromium species on Cr-MCM-41
UV Raman spectroscopy could distinguish the chromate species on Cr-MCM-41. Only one kind of monochromate species was observed on the Cr-MCM-41 synthesized by a direct hydrothermal synthesis method whereas several types of chromate species possibly including both monochromates and polychromates existed on that synthesized by a template-ion exchange method.