Surface Analysis of MF–Aluminas and Related Supported Reagents by Scanning Electron Microscopy

Abstract
SEM of MF–aluminas (M=Na, K, and Cs, loaded at 2 mmol g−1 and dried at 90 °C/2.7 kPa), showed similar salt dispersions and surface morphologies, with salt clusters of ca. 1 μm diameter evident on the external surfaces. Less reactive, highly dried or highly loaded, reagents showed extensive surface crystallization. KCl–and KOH–aluminas showed the effect of anion basicity, giving greater clustering and surface destruction respectively.