Cubic crystal alkali metal manganate nanoparticle production method and cubic crystal LiMnO2 nanoparticles produced using same
A LiMnO 2 production method includes generating cubic crystal LiMnO 2 nanoparticles by adding an organic solvent, manganese oxide nanoparticles, and lithium amide in a reaction vessel and heating in an inert atmosphere. and a washing and recovering the generated particles. Wurtzite type MnO nanoparticles are preferably used as the manganese oxide. As a result, LiMnO 2 nanoparticles that have a substantially similar particle size to wurtzite type MnO nanoparticles can be obtained from an Mn raw material. Nanoparticles having a hollow structure can be obtained by controlling the reaction temperature.
1 . A method for producing alkali metal manganate nanoparticles comprising:
a process of generating cubic crystal alkali metal manganate (MMnO 2 ) nanoparticles by adding an organic solvent, manganese oxide nanoparticles, and an alkali metal (M) complex in a reaction vessel and heating in an inert atmosphere; and
a process of washing and recovering the generated particles,
wherein the manganese oxide nanoparticles are hexagonal manganese oxide (II) nanoparticles.
2 . The method for producing alkali metal manganate nanoparticles according to claim 1 , wherein the alkali metal (M) complex is lithium amide and the cubic crystal alkali metal manganate nanoparticles are cubic crystal LiMnO 2 nanoparticles.
3 . The method for producing alkali metal manganate nanoparticles according to claim 1 , wherein the manganese oxide nanoparticles have a particle size of 30 nm or less.
4 . The method for producing alkali metal manganate nanoparticles according to claim 1 , wherein the heating temperature under the inert atmosphere is 150 to 350° C.
5 . The method for producing alkali metal manganate nanoparticles according to claim 4 , wherein the heating temperature in the inert atmosphere is lower than 250° C., producing hollow cubic crystal alkali metal manganate nanoparticles.