Ammonothermal Synthesis of a Mesoporous Si−Ti−N Composite Material from a Single-Source Precursor

摘要: The preparation and structure of the novel compound bis(dimethylamino)silylamino-μ-bis[(dimethylamino)silylimino]titanium {Ti[NHSi(NMe2)3]2[μ-NSi(NMe2)3]}2, 1, are reported. Ammonolysis 1 in an autoclave at 160 °C gave a mesoporous silicon titanium imide powder, 2, with high surface area narrow pore size distribution. A Si−Ti−N composite material was obtained after pyrolysis powder 2 under NH3 flow 1000 °C. BET is 163 m2 g-1, average diameter 71 A. influence temperature on porosity product also discussed basis FTIR nitrogen physisorption analyses.