The invention discloses a VOOH / VS4
micrometer composite
powder as well as a preparation method and application of the VOOH / VS4
micrometer composite
powder. The preparation method comprises the steps:simultaneously adding
sodium metavanadate and
thioacetamide into deionized water to obtain a solution A; then, dropwise adding an aqueous
ammonia solution into the solution A to obtain a solution B; pouring the solution B into a reaction liner, and then, carrying out sealing for a
hydrothermal reaction; next, taking out a product cooled after being reacted, alternately cleaning the product by using water and
alcohol, and then, collecting the product; and freezing the cleaned product, and then,
drying the product to obtain the VOOH / VS4
micrometer composite
powder. The VOOH / VS4 micrometer composite powder prepared according to the preparation method is composed of uniform spheroidal structures of which the diameters are about 10mu m, parts of spheroidal structures are gathered, the insides of microspheres are formed by self-stacking micrometer VS4 short rods of which the diameters are 0.5-1.0mu m and the length is 1.0-2.0mu m, and the outsides of the microspheres are randomly formed fromVOOH long rods having the diameters of 50-200nm and single-
crystal structures. The VOOH / VS4 micrometer composite powder is applied to the fields of
lithium /
sodium ion batteries and photo / electric
catalysis. The VOOH / VS4 micrometer composite powder shows excellent electrochemical properties and catalytic property when being applied as an
anode material of a
sodium /
lithium ion battery and a photo / electric catalyst.