Patent ID: 11912580
Assignee: ZHEJIANG UNIVERSITY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 4:
5. An in-situ preparation method of nano magnesium hydride, comprising steps of:
step (1) disposing and stirring magnesium dichloride, lithium hydride, and a transition metal chloride in a first organic solvent under protection of an inert atmosphere to obtain an organic suspension of a mixture;
step (2) performing an ultrasonic treatment to the organic suspension under the protection of the inert atmosphere, so as to promote a chemical reaction of the mixture, after the chemical reaction is completed, the organic suspension is filtered to obtain a solid reaction product; and
step (3) washing, centrifuging and drying the solid reaction product by using a second organic solvent under the protection of the inert atmosphere, so as to remove residual organic material and obtain nano-magnesium hydride;
wherein the transition metal chloride is an anhydrous chloride, including titanium tetrachloride, titanium trichloride, zirconium tetrachloride, vanadium trichloride, niobium pentachloride, nickel dichloride or cobalt dichloride; and
wherein the first organic solvent is ultra-dry tetrahydrofuran, ultra-dry cyclohexane, or ultra-dry ether; and
wherein the second organic solvent is ultra-dry tetrahydrofuran, or ultra-dry acetone, a washing time is 1-2 h, and a drying treatment is achieved by heating under a protection of vacuum or inert atmosphere.