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公开(公告)号：KR100826305B1
公开(公告)日：2008-04-30
申请号：KR1020060113648
申请日：2006-11-17
Applicant: 한국과학기술연구원
Abstract: A method for manufacturing a needle type single crystalline AlN nano-rod is provided to enhance efficiency and to extend a lifetime of the needle type single crystalline AlN nano-rod. An aluminum metal, a hydrochloric gas, and an ammonia gas react under nitrogen gas atmosphere during 10-30 minutes at temperature of 680-720 °C. Aluminum metal powders are positioned in the inside of the quartz tube. The hydrochloric gas/nitrogen is introduced into the inside of the quartz tube. The ammonia gas/nitrogen is introduced into the inside of the quartz tube. In the introduced gas, a volume ratio of HCl/NH3 is 0.02 to 0.05 and a volume ratio of (HCl/N2)/(NH3/N2) is 0.6 to 0.8. The total flow rate of the introduced gas corresponds to a range of 600 to 1000 sccm. A single crystalline nano-rod(110) is formed by introducing the gas in the flow rate.
Abstract translation: 提供一种制造针型单晶AlN纳米棒的方法，以提高针型单晶AlN纳米棒的效率并延长其寿命。 在氮气气氛下，在680-720℃的温度下，在10-30分钟内，将铝金属，盐酸气体和氨气反应。 铝金属粉末位于石英管的内部。 将盐酸气体/氮气引入石英管的内部。 将氨气/氮气引入石英管的内部。 在导入的气体中，HCl / NH 3的体积比为0.02〜0.05，（HCl / N 2）/（NH 3 / N 2）的体积比为0.6〜0.8。 引入气体的总流量对应于600〜1000sccm的范围。 通过以流量引入气体形成单晶纳米棒（110）。
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公开(公告)号：KR100623271B1
公开(公告)日：2006-09-12
申请号：KR1020050055256
申请日：2005-06-24
Applicant: 한국과학기술연구원
Abstract: 본 발명은 갈륨망간나이트라이드(GaMnN) 단결정 나노선의 제조방법에 관한 것으로서, 더욱 상세하게는 기판상에서 갈륨(Ga)금속과 망간(Mn)금속 등의 금속성분과, 질소(N
2 ) 기체, 염화수소(HCl) 기체 및 암모니아(NH
3 ) 기체 등의 기체 성분이 반응하는 할라이드 기상증착법(HVPE)을 수행하되, 상기 기체 성분의 사용량을 특정의 비로 조절하여 망간(Mn)금속의 도핑량을 제어함으로써, 내부결합이 없는 완벽한 단결정의 1차원 구조이고, 케리어인 홀농도와 자화값이 상기 도핑농도 제어에 의해 결정되고, 상온 강자성을 나타내어 특히, 스핀 전달체(Spin transport)로 스핀분극 레이저 발광 다이오드(Spin-Polarized LED), 스핀분극 전계 방출형 트랜지스터 (Spin-Polarized FET) 등과 같은 차세대 스핀트로닉스 분야에 유용하게 사용되는 갈륨망간나이트라이드(GaMnN) 단결정 나노선의 제조방법에 관한 것이다.
갈륨금속, 망간금속, 질소 기체, 염화수소 기체, 암모니아 기체, 갈륨망간나이트라이드 단결정 나노선Abstract translation: 本发明是镓和锰氮化物（GaMnN）涉及一种方法，用于生产单晶纳米线，更具体地，所述镓（Ga）的金属和锰（Mn）的金属，如基片，在氮上的金属成分（N
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公开(公告)号：KR100375000B1
公开(公告)日：2003-03-06
申请号：KR1020010008521
申请日：2001-02-20
Applicant: 한국과학기술연구원
IPC: B22F9/24
Abstract: PURPOSE: A method for manufacturing fine powder of core shell structure is provided to manufacture spherical nano powder of core shell structure that a functional metal element is located at the center thereof by virtue of a micro emulsion method using reverse micelle. CONSTITUTION: The method for manufacturing fine powder of core shell structure is comprised of steps; preparing a transition metal solution; attaining a transition metal organic solution by mixing the transition metal solution with surfactant and a certain organic solvent; adding a deoxidation agent to the organic solution; and causing a hydrosis reaction and a condensation reaction by adding TEOS(tetraethoxysilane) to the organic solution.
Abstract translation: 目的：提供一种制造核壳结构细粉末的方法，以通过使用反胶束的微乳液法制造功能性金属元素位于其中心的核壳结构球形纳米粉末。 构成：核壳结构细粉的制造方法由步骤组成， 制备过渡金属溶液; 通过将过渡金属溶液与表面活性剂和某种有机溶剂混合获得过渡金属有机溶液; 向有机溶液中加入脱氧剂; 并通过向有机溶液中加入TEOS（四乙氧基硅烷）引起水合反应和缩合反应。
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公开(公告)号：KR100316586B1
公开(公告)日：2002-02-28
申请号：KR1019960011994
申请日：1996-04-19
Applicant: 한국과학기술연구원
Abstract: PURPOSE: Provided are a method for modifying a polymer surface, which decrease a contact angle of the polymer surface, or increase adhesiveness of the polymer surface, and a material having surface modified by the method. CONSTITUTION: The method comprises directly blowing a reactive gas selected from oxygen, nitrogen, hydrogen, ammonia, carbon monooxide, and a mixture thereof on the polymer surface, and then irradiating an ion particle having energy of 0.5-2.5 KeV to the polymer surface to decrease a contact angle or increase an adhesion in the polymer surface. The amount of blown gas is 1-8 ml/min. The polymer is selected from polycarbonate, polymethylmethacrylate, polyimide, teflon, polyvinylidene fluoride, polyethylene terephthalate, polyethylene, and silicone rubber.
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Patent Agency Ranking
公开(公告)号：KR1020020082587A
公开(公告)日：2002-10-31
申请号：KR1020010022113
申请日：2001-04-24
Applicant: 한국과학기술연구원
IPC: B22F9/24
Abstract: PURPOSE: A method of synthesizing platelet-type asymmetric cadmium sulfide (CdS) fine particles by self assembly process is provided. CONSTITUTION: The synthesis method of platelet-type asymmetric cadmium sulfide comprises the steps of mixing an aqueous solution of cadmium compound with an aqueous solution of sulfur compound wherein the cadmium compound is selected from the group consisting of (Cd(NO3)2·4H2O), (Na2S·9H2O), cadmium acetate hydrate (CH3CO2)2Cd·xH2O, cadmium acetylacetonate hydrate (£(CH3)2(CO)2CH|2Cd·xH2O), cadmium carbonate (CdCO3), cadmium chloride hydrate (CdCl2·xH2O), cadmium sulfate hydrate (CdSO4·xH2O), and sulfur compound is selected from Na2S·9H2O and CaS and Li2S; adding one or more organic solvents selected from octylamine, amylamine, decylamine, undecylamine and dodecylamine to above aqueous solution; recovering obtained platelet-type asymmetric cadmium sulfide (CdS) fine particles by extraction and centrifugation; and washing the recovered platelet-type asymmetric cadmium sulfide (CdS) fine particles with solvents such as ethanol, acetone, isopropanol and methanol.
Abstract translation: 目的：提供一种通过自组装方法合成血小板型不对称硫化镉（CdS）微粒的方法。 构成：血小板型不对称硫化镉的合成方法包括以下步骤：将镉化合物的水溶液与硫化合物的水溶液混合，其中镉化合物选自（Cd（NO 3）2·4H 2 O） ，（Na2S·9H2O），乙酸镉水合物（CH3CO2）2Cd·xH2O，乙酰丙酮酸镉水合物（£（CH3）2（CO）2CH | 2Cd·xH2O），碳酸镉（CdCO3），氯化镉水合物（CdCl2·xH2O） ，硫酸镉水合物（CdSO4·xH2O）和硫化合物选自Na2S·9H2O和CaS和Li2S; 向上述水溶液中加入一种或多种选自辛胺，戊胺，癸胺，十一胺和十二烷胺的有机溶剂; 通过提取和离心回收获得的血小板型不对称硫化镉（CdS）微粒; 并用溶剂如乙醇，丙酮，异丙醇和甲醇洗涤回收的血小板型不对称硫化镉（CdS）微粒。
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公开(公告)号：KR1020020068223A
公开(公告)日：2002-08-27
申请号：KR1020010008521
申请日：2001-02-20
Applicant: 한국과학기술연구원
IPC: B22F9/24
Abstract: PURPOSE: A method for manufacturing fine powder of core shell structure is provided to manufacture spherical nano powder of core shell structure that a functional metal element is located at the center thereof by virtue of a micro emulsion method using reverse micelle. CONSTITUTION: The method for manufacturing fine powder of core shell structure is comprised of steps; preparing a transition metal solution; attaining a transition metal organic solution by mixing the transition metal solution with surfactant and a certain organic solvent; adding a deoxidation agent to the organic solution; and causing a hydrosis reaction and a condensation reaction by adding TEOS(tetraethoxysilane) to the organic solution.
Abstract translation: 目的：提供一种制造核心壳结构细粉的方法，通过使用反胶束的微乳液法制造核心壳结构的球形纳米粉末，功能性金属元素位于其中心。 构成：核壳结构细粉的制造方法包括： 制备过渡金属溶液; 通过将过渡金属溶液与表面活性剂和某些有机溶剂混合来获得过渡金属有机溶液; 向该有机溶液中加入脱氧剂; 并通过向有机溶液中加入TEOS（四乙氧基硅烷）引起水解反应和缩合反应。
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公开(公告)号：KR1020000026019A
公开(公告)日：2000-05-06
申请号：KR1019980043371
申请日：1998-10-16
Applicant: 한국과학기술연구원
IPC: C01G49/00
CPC classification number: C01G49/08 , C01P2002/72 , C01P2004/04 , C01P2004/32 , C01P2004/41 , C01P2004/61 , C01P2004/62
Abstract: PURPOSE: Provided are methods for synthesizing iron oxide powder in which the shapes and sizes of particles can be easily regulated. CONSTITUTION: Dried α-FeOOH precursor with final concentration of 0.1-0.5 mol per liter is added to reactor containing glycol solvent such as ethylene glycol, propylene glycol, or mixture of them, which regulators for shape and size of particles, while H2O, itaconic acid, or HNO3 are used as regulators; the mixture is blended by ultrasonic disperser at 150-300°C and with pressure of 3-30 kg per centimeter square for 1-48 hours; then, recrystallized particles are gained by centrifugation. The shape and size of particles are controlled by what kind and what concentration of a regulator is used. Produced iron oxide particles have spherical, octahedral, tetradecahedral, or intermediary polygonal shape and 0.05-5.0 micrometer particle size.
Abstract translation: 目的：提供合成氧化铁粉末的方法，其中可以容易地调节颗粒的形状和尺寸。 构成：将最终浓度为0.1-0.5mol / l的干燥的α-FeOOH前体加入到含有二醇溶剂如乙二醇，丙二醇或它们的混合物的反应器中，这些调节剂用于形成和尺寸的颗粒，而H 2 O，衣康酸 酸或HNO 3用作调节剂; 该混合物通过超声波分散机在150-300℃和3-30kg / cm 2的压力下共混1-48小时; 然后通过离心获得重结晶的颗粒。 颗粒的形状和尺寸由使用什么样的浓度的调节剂控制。 产生的氧化铁颗粒具有球形，八面体，十四面体或中间多边形，粒径为0.05-5.0微米。
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公开(公告)号：KR101413653B1
公开(公告)日：2014-07-01
申请号：KR1020120025947
申请日：2012-03-14
Applicant: 한국과학기술연구원 , 엘지이노텍 주식회사
CPC classification number: C01B31/36 , C01B32/956
Abstract: 본 발명은 고순도 탄화규소 분말의 제조방법에 관한 것으로서, 더욱 상세하게는 금속 규소와 이산화규소 분말로 이루어진 출발원료로부터 발생하는 기상 규소원과 고상의 탄소원을 원료로 사용하여 진공 분위기 또는 아르곤(Ar) 분위기 하에서 고온 열처리하는 공정으로 진행되며, 기상의 규소원과 고상의 탄소원의 조성변화, 열처리 온도 및 시간 조절을 통하여 탄화규소 분말의 크기 및 결정상을 제어하는 것이 용이한 고순도 탄화규소 분말의 제조방법에 관한 것이다.
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公开(公告)号：KR1020040093911A
公开(公告)日：2004-11-09
申请号：KR1020030027780
申请日：2003-04-30
Applicant: 한국과학기술연구원
CPC classification number: B22F9/24 , B22F1/0044 , B82Y40/00
Abstract: PURPOSE: Provided is a method for preparing silver nano-sized powder having controlled particle size distribution of up to 100 nm by using micro-emulsion process. CONSTITUTION: The method for preparing Ag nano-sized powders comprises the steps of: mixing an aqueous solution of silver with a surfactant in an organic solvent to obtain a reverse micelle micro-emulsion; reducing silver by adding a reducing agent to the emulsion and agglutinating to obtain silver powder; and washing the powder to isolate from the organic solvent. Particularly, the organic solvent is at least one selected from cyclohexane and isooctane, and the surfactant is at least one selected from polyoxyethylene nonylphenyl ether and sodium bis(2-ethylhexyl) sulfonate. Further, the reducing agent may be 0.1-2 wt% of N2H4.xH2O.
Abstract translation: 目的：提供一种通过使用微乳液法制备具有高达100nm的可控粒度分布的银纳米尺寸粉末的方法。 构成：制备Ag纳米尺寸粉末的方法包括以下步骤：将银水溶液与表面活性剂在有机溶剂中混合，得到反胶束微乳液; 通过向乳液中加入还原剂并凝集得到银粉来还原银; 并洗涤粉末与有机溶剂分离。 特别地，有机溶剂是选自环己烷和异辛烷中的至少一种，表面活性剂是选自聚氧乙烯壬基苯基醚和双（2-乙基己基）磺酸钠中的至少一种。 此外，还原剂可以为0.1〜2重量％的N 2 H 4·xH 2 O.
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