Influence of TEM low energy electron irradiation on InP damage structure irradiated previously by 100 keV Au ions
The behavior of disordered isolated volumes (zones) in InP under electron action was characterized by TEM observations. The total areal fraction of the disordered zones in initial InP pre-irradiated by 100 keV heavy Au ions decreased as a function of irradiating electron fluence (time of TEM electron beam irradiation) within all the investigated electron energy range (100–300 keV), Disappearance of disordered zones shows that these zones are sensitive to electron beam irradiation and recover even under electron energies not sufficient to directly elastically displace lattice atoms In and P.
Finding environmentally gentle methods to graft Lewis acid on the surface of mesoporous materials is a topic of current interest. Herein we describe the optimization of a preparation procedure of a mesoporous silica-supported ErIII catalyst using the microwave-assisted post-calcination functionalization of Mobil Composition of Matter-41 silica as the key step. The required time for functionalization was reduced from several hours to 10 min using sealed-vessel microwave technology. Control experiments using conventional heating at the same temperature demonstrated that the rate increase is owing to a simple thermal/kinetic effect as a result of the higher reaction temperature. The resulting ErIII catalyst was tested for the first time as a catalyst in the continuous flow deprotection of benzaldehyde dimethylacetal and a complete leaching study was performed.