beim Erhitzen;

beim Erhitzen;

hydrogenchloride in water Al(OC4H9)3 (0.0334 mol)+H2O (3.34 mol) stirred (60°C, 1 h); concd. HCl (0.0033 mol) added; heated (80°C, 2 h); dried (overnight, 120°C) or dried (80°C, 3 h) and with supercritical CO2; calcined (1200°C, 5 h) in air;

nitric acid; ethyl acetoacetate in water H2O at 80°C treated dropwise with Al complex, heated to 91°C, heated for 3 min, treated with ethylacetoacetate, stirred for 2 min,treated with HNO3 to pH=3, gel film dip-coated, dried at room temp. for 2 d, heated at 700°C for 4 h; XRD;