Method for producing nickel nanopowder
AssigneeSolueta
InventorsEui-Hong Min, Sang-Ho Cho, Buck-Keun Choi
Life of this patent
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Abstract
A method for producing nickel nanopowder is introduced. For this, the present invention relates to a method for producing nickel nanopowder, including: (a) a step of preparing nickel oxide configured in the form of an oxide; (b) a nickel oxide nanopowder production step of pulverizing the nickel oxide so as to produce nano-sized nickel oxide nanopowder; (c) a step of drying the nickel oxide nanopowder; (d) a step of heat-treating the nickel oxide nanopowder so as to produce natural metal nickel nanopowder; and (e) a step of crushing the heat-treated nickel oxide nanopowder.
Claims5
A method for producing a nickel nanopowder, the method comprising:
- (a) a step of preparing a nickel oxide;
- (b) a nickel oxide nanopowder production step of pulverizing the nickel oxide to produce a nano-sized nickel oxide nanopowder;
- (c) a step of drying the nickel oxide nanopowder;
- (d) a step of heat-treating the nickel oxide nanopowder to produce a nickel nanopowder;
- and
- (e) a step of crushing the nickel nanopowder,
- wherein the step (d) includes producing the nickel nanopowder from the nickel oxide nanopowder by a reduction process in a hydrogen atmosphere, and supplying heat at the same time, and
- wherein the reduction process is performed at a hydrogen injection flow rate of 2.5 to 7.0 L/min and a temperature of 250° C. and 400° C. for a process time of 0.5 to 5.0 hr.
Dependencies are inferred from the claim text.