Method for manufacturing nickel nanoparticles

Abstract

The present invention relates to a method for manufacturing nickel nanoparticles and more particularly to a method including preparing a mixture solution by adding a reducing agent, a dispersing agent and a nickel salt to a polyol; stirring and heating the mixture solution; and producing nickel nanoparticles by reacting the mixture solution, so that it allows mass production of nickel nanoparticles having uniformity of size 30 to 50 nm and high dispersibility.

1 . A method for manufacturing nickel nanoparticles, comprising:
 preparing a mixture solution by adding a reducing agent, a dispersing agent and a nickel salt to a polyol;   stirring and heating the mixture solution; and   producing nickel nanoparticles by reacting the mixture solution.   
     
     
         2 . The method of  claim 1 , wherein the reducing agent is at least one selected from the group consisting of sodium hypophosphite (NaH 2 PO 2 ), hydrazine (N 2 H 4 ), hydrochloride, sodium borohydride (NaBH 4 ), and sodium hydroxymethylsulfoxylate (NaHSO 2 ◯CH 2 O◯H 2 O). 
     
     
         3 . The method of  claim 1 , wherein the dispersing agent is at least one selected from the group consisting of a cationic surfactant, an anionic surfactant, an analogue of cellulose, a polymer, a copolymer and a terpolymer. 
     
     
         4 . The method of  claim 1 , wherein the dispersing agent is at least one selected from the group consisting of cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), sodium carboxymethyl cellulose (Na-CMC), polyvinylpyrrolidone (PVP), vinylpyrrolidone/vinylacetate (PVP/VA), and vinylcaprolactam/vinylpyrrolidone/propylmethacylamide. 
     
     
         5 . The method of  claim 1 , wherein the nickel salt is added in a concentration of 0.001 to 1M with respect to the mixture solution. 
     
     
         6 . The method of  claim 1 , wherein the reducing agent is added in a mole ratio of 2 to 10 with respect to the nickel salt. 
     
     
         7 . The method of  claim 1 , wherein the dispersing agent is added in a mole ratio of 1 to 20 with respect to the nickel salt. 
     
     
         8 . The method of  claim 1 , wherein the nickel salt is at least one selected from the group consisting of NiCl 2 , Ni(NO 3 ) 2 , NiSO 4  and (CH 3 COO) 2 Ni. 
     
     
         9 . The method of  claim 1 , wherein the polyol is at least one selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, and polyethylene glycol. 
     
     
         10 . The method of  claim 1 , wherein the mixture solution is heated to 80 to 160° C. 
     
     
         11 . The method of  claim 1 , further comprising washing, isolating, and drying the produced nickel nanoparticles.