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公开(公告)号：KR101054354B1
公开(公告)日：2011-08-05
申请号：KR1020080131413
申请日：2008-12-22
Applicant: 한국과학기술원
CPC classification number: B81C1/00031 , B82Y30/00 , B82Y40/00 , C01B32/174
Abstract: 본 발명은 용액 증발법을 이용한 나노물질의 배열방법에 관한 것으로 보다 상세하게는 나노물질을 고분자 물질로 코팅한 후 용매에 고르게 분산시켜 나노물질 함유 용액을 제조하는 단계; 상기의 나노물질 함유 용액을 기판에 부어 용매의 증발에 따라 나노물질을 배열하는 것을 특징으로 하는 용액 증발법을 이용한 나노물질의 배열방법에 관한 것이다.
용액 증발법, 나노물질, 배열-
公开(公告)号：KR1020100033263A
公开(公告)日：2010-03-29
申请号：KR1020080092351
申请日：2008-09-19
Applicant: 한국과학기술원
CPC classification number: C01B32/168 , B01J19/12 , B82B3/0009 , B82Y40/00 , C01B2202/36
Abstract: PURPOSE: A diameter control method of a carbon nanotube using a template is provided to insure convenience of a process by selectively removing a metal on the outer surface of the template before growing the carbon nanotube. CONSTITUTION: A diameter control method of a carbon nanotube comprises the following steps: doping a metal precursor on a template; reducing the precursor by heat-treating under the hydrogen atmosphere; removing a metal on the outer surface of the template by processing with nitrogen plasma; and growing the carbon nanotube by providing methane gas. The template is an organic silica mesoporous template. The metal precursor is transition metal salt.
Abstract translation: 目的：提供使用模板的碳纳米管的直径控制方法，以便在生长碳纳米管之前通过选择性去除模板外表面上的金属来确保方法的便利。 构成：碳纳米管的直径控制方法包括以下步骤：在模板上掺杂金属前体; 在氢气氛下热处理减少前体; 通过用氮等离子体处理去除模板外表面上的金属; 并通过提供甲烷气体生长碳纳米管。 该模板是有机二氧化硅介孔模板。 金属前体是过渡金属盐。
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公开(公告)号：KR1020100030916A
公开(公告)日：2010-03-19
申请号：KR1020080089887
申请日：2008-09-11
Applicant: 한국과학기술원
Abstract: PURPOSE: A method for generating hydrogen using a core / shell nano particle is provided to prevent a core portion from becoming oxidized by making the shell protect a pure metal nano particle of the core and to easily generate hydrogen through a reaction with water. CONSTITUTION: A method for generating hydrogen using a core / shell nano particle includes a step of eliminating a shell by contacting the core / shell nano particle with water and using an oxidation reaction. The shell is eliminated through etching or by heating the shell with a temperature over the melting point of the nano particle. Hydrogen is created through the oxidation reaction with water. The metal is titanium(Ti), iron(Fe), nickel(Ni), cobalt(Co), or aluminum(Al). The oxidation of the pure metal of the core is prevented when the shell does not react with the water. An etchant for removing the shell is hydrochloric acid, nitric acid, hydrofluoric acid, sulfuric acid, or NaOH.
Abstract translation: 目的：提供使用核/壳纳米颗粒产生氢的方法，以通过使壳保护芯的纯金属纳米颗粒并通过与水的反应容易地产生氢来防止芯部氧化。 构成：使用核/壳纳米颗粒产生氢的方法包括通过使核/壳纳米颗粒与水接触并使用氧化反应来消除壳的步骤。 通过蚀刻或通过在超过纳米颗粒的熔点的温度加热壳体来消除壳体。 通过与水的氧化反应产生氢。 金属是钛（Ti），铁（Fe），镍（Ni），钴（Co）或铝（Al）。 当外壳不与水反应时，防止芯的纯金属的氧化。 用于除去壳的蚀刻剂是盐酸，硝酸，氢氟酸，硫酸或NaOH。
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公开(公告)号：KR101437557B1
公开(公告)日：2014-09-15
申请号：KR1020120078747
申请日：2012-07-19
Applicant: 한국과학기술원
IPC: B01J37/02 , C01G23/047 , B82B1/00 , B82B3/00
CPC classification number: H01L21/0228 , H01L29/0603 , H01L51/0045 , Y10S977/811 , Y10S977/823 , Y10S977/90
Abstract: 본 발명은 흑연 구조의 탄소막을 반도체 광촉매 표면에 균일하게 코팅한 물질 및 이의 제조방법에 관한 것이다. 본 발명은 글루코스를 수열합성법과 열분해법(pyrolysis) 방법을 이용하여 반도체 표면에 두께 1 나노미터 이하의 흑연구조의 탄소막을 균일하게 형성시키면서, 탄소막의 지지체가 되는 반도체 광촉매 본연의 구조와 결정성을 그대로 유지하는 것을 특징으로 한다. 본 발명에 의해 개발된 탄소막-반도체 복합체 광촉매의 경우 반도체 광촉매에 발생되는 광전자들을 외부 계의 양성자에게 잘 전달할 수 있게 되므로 전자 정공 재결합을 효과적으로 억제할 수 있으며, 물을 분해하여 수소를 발생시키는 광촉매로서 매우 높을 활성을 가지고 있다.
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Patent Agency Ranking
公开(公告)号：KR1020130022701A
公开(公告)日：2013-03-07
申请号：KR1020110085497
申请日：2011-08-26
Applicant: 한국과학기술원
CPC classification number: C07F3/06 , B01D53/04 , B01D2253/204 , B01J20/226 , B01J31/1691 , C01B3/0084
Abstract: PURPOSE: A porous metal organic framework crystal with a heterogeneous pore structure is provided to improve gas storage performance and catalytic activity. CONSTITUTION: A method for preparing a porous metal organic framework crystal with a heterogeneous pore structure comprises: a step of dissolving metal ions and an organic bridge ligand precursor in a solvent; and a step of adding a porous derivative and heating the same for 2-4 hours to prepare an organic metal ligand. The metal organic framework has a sponge form.
Abstract translation: 目的：提供具有不均匀孔结构的多孔金属有机骨架结构，以改善气体储存性能和催化活性。 构成：制备具有不均匀孔结构的多孔金属有机骨架晶体的方法包括：将金属离子和有机桥配体前体溶解在溶剂中的步骤; 和加入多孔衍生物并加热2-4小时以制备有机金属配体的步骤。 金属有机骨架具有海绵形式。
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公开(公告)号：KR100995388B1
公开(公告)日：2010-11-19
申请号：KR1020080092351
申请日：2008-09-19
Applicant: 한국과학기술원
Abstract: 본원발명은 탄소나노튜브의 직경제어방법에 관한 것이다. 상세하게는, 탄소나노튜브의 직경제어방법은 템플릿에 금속 프리커서(metal precursor)를 도핑시키는 단계; 수소 분위기에서의 열처리에 의하여 환원시키는 단계; 질소플라즈마를 처리하여 템플릿 외벽에 존재하는 금속을 제거하는 단계; 메탄가스를 공급하여 탄소나노튜브를 성장시키는 단계를 포함한다.
상기의 탄소나노튜브는 템플릿의 기공 속에 존재하는 금속촉매로부터 성장하는 것이므로, 성장된 탄소나노튜브의 직경은 템플릿의 기공 크기와 일치하게 된다. 즉, 본원발명은 템플릿을 이용하여 탄소나노튜브의 직경을 제어할 수 있게 되는 것이다.
또한, 본원발명은 상기의 방법으로 제조된 직경이 제어된 탄소나노튜브에 관한 것이다.
템플릿, 탄소나노튜브, 금속, 플라즈마-
公开(公告)号：KR1020100072874A
公开(公告)日：2010-07-01
申请号：KR1020080131413
申请日：2008-12-22
Applicant: 한국과학기술원
CPC classification number: B81C1/00031 , B82Y30/00 , B82Y40/00 , C01B32/174
Abstract: PURPOSE: An arraying method of a nanosubstance using a solution evaporation method is provided to rapidly and easily array the nanosubstance to the desired shape and size by synthesizing a nano-material containing solution and evaporating it. CONSTITUTION: An arraying method of a nanosubstance using a solution evaporation method comprises the following steps: forming a nano-material containing solution by coating a nano-material with a polymer and dispersing the nano-material into a solvent; and arraying the nanosubstance by pouring the nano-material containing solution to a substrate and drying. The coating method of the nano-material with the polymer comprises the following steps: dispersing the nano-material into 1,5-pentanediol; adding a polymer selected from PVP, polystyrene, poly(vinyl acetate), and polyisobutylene; firstly heating at 150~230 deg C for 1~3 hours; and secondly heating at 250~300 deg C for 30 minutes~1 hour.
Abstract translation: 目的：提供使用溶液蒸发法的纳米级的排列方法，通过合成含有纳米材料的溶液并将其蒸发而将纳米级快速和容易地排列成所需的形状和尺寸。 构成：使用溶液蒸发法的纳米级的排列方法包括以下步骤：通过用聚合物涂覆纳米材料并将纳米材料分散在溶剂中来形成含纳米材料的溶液; 并通过将含纳米材料的溶液倒入衬底并干燥来排列纳米级。 纳米材料与聚合物的涂覆方法包括以下步骤：将纳米材料分散到1,5-戊二醇中; 加入选自PVP，聚苯乙烯，聚（乙酸乙烯酯）和聚异丁烯的聚合物; 首先在150〜230℃加热1〜3小时; 然后在250〜300℃下加热30分钟〜1小时。
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公开(公告)号：KR1020100011221A
公开(公告)日：2010-02-03
申请号：KR1020080072347
申请日：2008-07-24
Applicant: 한국과학기술원
IPC: B01J23/745 , B01J37/34 , B82B3/00 , B82Y30/00
CPC classification number: B01J27/24 , B01J23/745 , B01J35/0013 , B01J37/08 , B01J37/349 , B82Y30/00 , B82Y40/00 , C01B32/162 , C01B2202/04 , C01B2202/36
Abstract: PURPOSE: Metal catalysts with locally controlled chemical activities and a manufacturing method thereof are provided to manufacture carbon nano-tube having the constant walls can be controlled by controlling the size and structure of the metal catalyst. CONSTITUTION: A manufacturing method of metal catalysts with locally controlled chemical activities includes the following steps: patterning micelle containing iron nano-particles on a silicon substrate; forming an iron particle by processing a copper substrate with plasma; extracting iron nitrides inside the iron particles by processing the iron particle with nitrogen plasma; and etching the iron nitrides after removing iron in the ethanol and a nitric acid mixture. In a plasma process, the plasma power is 500-800W and the plasma is formed at the temperatures of 600-900°C.
Abstract translation: 目的：提供具有局部控制的化学活性的金属催化剂及其制造方法，用于制造具有恒定壁的碳纳米管可以通过控制金属催化剂的尺寸和结构来控制。 构成：具有局部控制化学活性的金属催化剂的制造方法包括以下步骤：在硅衬底上形成含有铁纳米颗粒的胶束; 通过用等离子体处理铜基板形成铁颗粒; 通过用氮等离子体处理铁颗粒来提取铁颗粒内的铁氮化物; 并且在除去乙醇中的铁和硝酸混合物之后蚀刻铁氮化物。 在等离子体工艺中，等离子体功率为500-800W，等离子体在600-900℃的温度下形成。
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公开(公告)号：KR100842810B1
公开(公告)日：2008-07-01
申请号：KR1020080001145
申请日：2008-01-04
Applicant: 한국과학기술원
Abstract: A noble method is provided to produce hydrogen while controlling the generation of hydrogen by preventing oxidation of pure metal nanoparticles using a block copolymer and performing an oxidation reaction of the metals only when the metal nanoparticles are exposed to water, thereby decomposing hydrogen from water, a hydrogen produced by the method is provided. In a hydrogen producing method comprising the steps of: (a) forming metal nanoparticles from a metal salt using a block copolymer; and (b) exposing the metal nanoparticles to water to generate hydrogen by an oxidation reaction of the metal nanoparticles with water, the hydrogen producing method is characterized in that a block copolymer micelle process is used, the block copolymer micelle process comprising a process of forming metal nanoparticles by allowing the block copolymer to form a micelle by self-assembly and adding a metal salt selected from the group consisting of iron(Fe), nickel(Ni), and cobalt(Co) into the micelle in the step(a). The method comprises forming the micelle by self-assembly when dissolving the block copolymer into a solvent. The block copolymer is at least one selected from the group consisting of poly(styrene-block-4-vinylpyridine), poly(styrene-block-2-vinylpyridine), poly(styrene-block-ethylene oxide), poly(styrene-block-methacrylic acid), and poly(styrene-block-acrylic acid). The solvent is at least one selected from the group consisting of water, toluene, N,N-dimethylformamide, ethylacetate, methylene chloride, chloroform, acetone, dimethylsulfoxide, N-methylpyrrolidone, dioxane, tetrahydrofuran, methyl ethyl ketone, acetonitrile, methanol, and ethanol. Further, the metal salt is acetate salt or chloride salt.
Abstract translation: 通过使用嵌段共聚物防止纯金属纳米粒子的氧化，仅在金属纳米粒子暴露在水中时进行金属的氧化反应，从而分解氢，从而提供氢来制造氢气，同时控制氢的产生。 提供了通过该方法产生的氢。 在制氢方法中，包括以下步骤：（a）使用嵌段共聚物从金属盐形成金属纳米粒子; 和（b）通过金属纳米颗粒与水的氧化反应将金属纳米颗粒暴露于水以产生氢，其制氢方法的特征在于使用嵌段共聚物胶束法，该嵌段共聚物胶束法包括形成 通过使嵌段共聚物通过自组装形成胶束并在步骤（a）中将选自铁（Fe），镍（Ni）和钴（Co）的金属盐添加到胶束中， 。 该方法包括在将嵌段共聚物溶解在溶剂中时通过自组装形成胶束。 嵌段共聚物是选自聚（苯乙烯 - 嵌段-4-乙烯基吡啶），聚（苯乙烯 - 嵌段-2-乙烯基吡啶），聚（苯乙烯 - 嵌段 - 环氧乙烷），聚（苯乙烯嵌段） - 甲基丙烯酸）和聚（苯乙烯 - 嵌段 - 丙烯酸）。 溶剂是选自水，甲苯，N，N-二甲基甲酰胺，乙酸乙酯，二氯甲烷，氯仿，丙酮，二甲基亚砜，N-甲基吡咯烷酮，二恶烷，四氢呋喃，甲基乙基酮，乙腈，甲醇和 乙醇。 此外，金属盐是乙酸盐或氯化物盐。
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