A co-ti-mof derived bimetallic oxide catalyst, and a preparation method and application thereof

Abstract

This invention belongs to the field of hydrogen storage material technology, specifically relating to a method for preparing a CoTi-MOF-derived bimetallic oxide catalyst, comprising the following steps: (1) mixing and stirring cobalt acetate, titanium tetrafluoride, trisodium citrate dihydrate, and water, and allowing it to stand to obtain a mixed solution; (2) mixing and stirring potassium cobalt cyanide and water, and allowing it to stand to obtain a potassium cobalt cyanide solution; (3) mixing and stirring 2-methylimidazole and water, and allowing it to stand to obtain a 2-methylimidazole solution; (4) stirring the mixed solution, the potassium cobalt cyanide solution, and the 2-methylimidazole solution, and allowing them to stand. After standing, the resulting product is centrifuged, washed, and dried to obtain a CoTi-PBA precursor; (5) calcining the obtained CoTi-PBA precursor to obtain a CoTi-MOF-derived bimetallic oxide catalyst. This invention also relates to oxide catalysts and their application in the preparation of lithium aluminum hydride hydrogen storage materials. The catalyst prepared by the method of this invention can significantly reduce the dehydrogenation temperature of lithium aluminum hydride materials and improve their hydrogen release efficiency.

Images