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公开(公告)号：US12233464B2
公开(公告)日：2025-02-25
申请号：US18247735
申请日：2021-08-18
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Seung Min Yang , Geon Dae Moon , Young Kyu Jeong , Ohyung Kwon , Gun Hee Kim , Kyung Hoon Kim
Abstract: Provided is a method of producing a nickel nanopowder, the method capable of preventing coagulation between particles and, accordingly, providing a nickel nanopowder having a small average particle size and a low coagulation rate. According to an embodiment of the present invention, the method of producing a nickel nanopowder includes providing a nickel salt and a shell-forming material; nucleating and growing nickel core particles from the nickel salt; forming a shell layer on surfaces of the nickel core particles using the shell-forming material; and removing the shell layer to form the nickel nanopowder.
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公开(公告)号：US12042774B2
公开(公告)日：2024-07-23
申请号：US18469241
申请日：2023-09-18
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Seung Min Yang , Kyung Hoon Kim , Gun Hee Kim , Young Kyu Jeong , O Hyung Kwon , Chan Bin Mo , Yong Su Jo , Hye Min Park , Gwang Hwa Jin
CPC classification number: B01J12/02 , B01J12/005 , B01J19/24 , B22F9/16
Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.
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公开(公告)号：US11794160B2
公开(公告)日：2023-10-24
申请号：US17544515
申请日：2021-12-07
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Seung Min Yang , Kyung Hoon Kim , Gun Hee Kim , Young Kyu Jeong , O Hyung Kwon , Chan Bin Mo , Yong Su Jo , Hye Min Park , Gwang Hwa Jin
CPC classification number: B01J12/02 , B01J12/005 , B01J19/24 , B22F9/16
Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.
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