| abstract |
The present invention relates to lithium titanate nanoparticles in which oxygen deficiency is generated in lithium titanate by the reduction action of carbon and nitrogen is doped in the oxygen deficient portion, a composite of the lithium titanate nanoparticles and carbon, and a method for producing the same. provide. A mixed solvent is prepared by dissolving acetic acid and lithium acetate in a mixture of isopropanol and water. This mixed solvent, titanium alkoxide, and carbon nanofiber (CNF) are put into a swirl reactor, and the inner cylinder is swirled for 5 minutes with a centrifugal force of 66,000 N (kgms -2 ), and the reaction product is placed on the inner wall of the outer cylinder. In addition, a chemical reaction was promoted by applying shear stress and centrifugal force to the reaction product to obtain CNF carrying a highly dispersed lithium titanate nanoparticle precursor. The obtained composite powder was heated in a nitrogen atmosphere at 900 ° C. for 3 minutes to obtain a composite powder in which lithium titanate nanoparticles in which crystallization of lithium titanate was advanced were highly dispersed and supported on CNF-. It was. [Selection] Figure 1 |