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To determine the correlation between strong electrostatic interaction during impregnation and the high dispersion of reduced metals, a series of silica-supported noble and base metal catalysts prepared by strong electrostatic adsorption (SEA) was compared with the traditional incipient wetness impregnation (IWI) method. Metal ammine complexes ([Pd(NH 3 ) 4 ] +2 , [Cu(NH ...
The catalyst synthesis method of strong electrostatic adsorption (SEA) was applied to mesoporous silica SBA-15. pH shift control experiments were performed to determine the point of zero charge (PZC) of SBA-15. Adsorption–pH surveys of various noble and base metal ammines (Pt, Pd, Cu, Co, Ru ammines) on SBA-15 were carried out to determine the pH of maximum uptake. Adsorption kinetics also were examined...
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