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公开(公告)号：KR100487905B1
公开(公告)日：2005-05-06
申请号：KR1020020060309
申请日：2002-10-02
Applicant: 한국과학기술연구원
CPC classification number: B82Y30/00 , C01G49/06 , C01P2002/72 , C01P2004/04 , C01P2004/64 , C01P2006/42 , Y10S977/773 , Y10S977/775 , Y10S977/777 , Y10S977/811
Abstract: 본 발명은 나노크기의 금속산화물 분말 및 그 제조방법에 관한 것으로서, 특히 우수한 형상 이방성과 자기 특성을 가짐으로써, 초고밀도 자기기록재료로 이용될 수 있는 나노크기의 마그헤마이트(γ-Fe
2 O
3 ) 분말, 그 마그헤마이트의 전구체로 또는 촉매로 이용될 수 있는 헤마타이트(α-Fe
2 O
3 ) 분말 그리고 마그헤마이트와 헤마타이트가 혼재된 분말 및 그 제조방법에 관한 것이다. 본 발명에 따른 나노크기의 금속산화물 분말을 제조하는 방법은, 3가 이상의 금속염에 증류수, 계면활성제, 및 용매를 가하여 역미셀 용액을 형성한 후, 상기 역미셀 용액에 양성자 스캐빈저를 가하여 겔형태의 무정형 금속산화물 분말을 침전 및 분리하는 단계와; 상기 겔형태의 무정형 금속산화물 분말을 극성 용매로 세정하여 금속산화물 대 계면활성제의 몰비를 조절하는 단계와; 상기 겔형태의 무정형 금속산화물 분말을 고비등점의 비극성 용매에 분산시켜 가열 또는 환류반응을 통해 나노크기의 금속산화물 입자를 결정화하는 단계를 포함하여 구성된다.-
公开(公告)号：KR1020040034224A
公开(公告)日：2004-04-28
申请号：KR1020020064314
申请日：2002-10-21
Applicant: 한국과학기술연구원
CPC classification number: B22F9/24 , B22F1/0018 , B22F2301/35 , B82Y30/00 , B82Y40/00
Abstract: PURPOSE: Provided is an economical method for preparing spherical iron oxide nanopowder having uniformly controlled particle diameter and particle diameter distribution, superparamagnetic property and individualization of particles suitable for use in medical applications, from inexpensive starting materials by a simple process. CONSTITUTION: The method comprises the steps of: providing a solution containing a surfactant selected from the group consisting of ROOH, RNH2 and a mixture thereof, in which R is a C6 or higher alkyl or alkenyl, and an organic solvent selected from the group consisting of dibenzylether, diphenylether and dioctylether; introducing iron pentacarbonyl(Fe(CO)5) precursor into the solution, while purging with nitrogen gas, thereby performing thermal decomposition; and oxidizing the solution with residual oxygen left in the thermally decomposed iron pentacarbonyl solution to obtain iron oxide powder.
Abstract translation: 目的：提供一种经济的方法，通过简单的方法从廉价的起始原料制备具有均匀控制的粒径和粒径分布，超顺磁性能和适用于医疗应用的颗粒的个性化的球形氧化铁纳米粉末。 方案：该方法包括以下步骤：提供含有选自由ROOH，RNH 2及其混合物组成的组的表面活性剂的溶液，其中R为C6或更高级烷基或烯基，以及选自以下的有机溶剂： 的二苯醚，二苯醚和二辛醚; 将铁五羰基（Fe（CO）5）前体引入溶液中，同时用氮气吹扫，从而进行热分解; 并用热分解的铁五羰基溶液中残留的氧氧化溶液，得到氧化铁粉末。
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公开(公告)号：KR101195202B1
公开(公告)日：2012-10-29
申请号：KR1020110037226
申请日：2011-04-21
Applicant: 한국과학기술연구원
CPC classification number: G01Q70/12 , G01Q70/14 , G01Q70/18 , Y10S977/85
Abstract: PURPOSE: A probe using a nano wire and a manufacturing method therefor are provided to manufacture a probe using a single-crystal metal nano probe, thereby measuring electrical properties of the probe without damage on a surface of the probe. CONSTITUTION: Single-crystal metal nano wires(110) are formed on a substrate(100). A mother body(200) contacts the single-crystal metal nano wires. An electronic beam or an ion beam are irradiated onto a portion where the motor body contacts the single-crystal metal nano wires so that bonded mother body are bonded with the single-crystal metal nano wires. The mother body bonded with the single-crystal metal nano wires is separated from the substrate. [Reference numerals] (AA) Detaching from substrate
Abstract translation: 目的：提供使用纳米线的探针及其制造方法，以制造使用单晶金属纳米探针的探针，由此测量探针的电性能而不会在探针表面受损。 构成：在基板（100）上形成单晶金属纳米线（110）。 母体（200）接触单晶金属纳米线。 将电子束或离子束照射到电动机体与单晶金属纳米线接触的部分上，使得结合母体与单晶金属纳米线接合。 与单晶金属纳米线接合的母体与基板分离。 （附图标记）（AA）从基板脱离
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公开(公告)号：KR1020090124341A
公开(公告)日：2009-12-03
申请号：KR1020080050480
申请日：2008-05-29
Applicant: 한국과학기술연구원
CPC classification number: B01J3/006 , B01J19/088 , B01J2219/0809 , B01J2219/0879 , B01J2219/0894 , C01B32/20 , C01B32/25 , C01B32/28 , C30B29/04 , C30B33/02 , Y10T428/30 , B32B19/00 , B32B19/04
Abstract: PURPOSE: An AA stacked graphene-diamond hybrid material and a manufacturing method thereof are provided to form the AA stacked grapheme having good property on a diamond substrate with a simple process by changing the diamond surface to graphene. CONSTITUTION: An AA stacked graphene-diamond hybrid material is formed by including AA stacked graphene changed to the constant thickness by alternating disappearance of a partition surface and a diamond base material. A hydrogen atom is combined on a severed diamond lattice in which the graphene and diamond are not combined between the AA stacked grapheme and the changed diamond base material. The diamond base material is powder, a membrane or a sheet form.
Abstract translation: 目的：提供一种AA堆叠的石墨烯 - 金刚石混合材料及其制造方法，通过将金刚石表面改变为石墨烯，通过简单的工艺在金刚石基底上形成具有良好性能的AA堆叠图形。 构成：AA层叠的石墨烯 - 金刚石混合材料通过包括通过分隔表面和金刚石基底材料的交替消失将AA叠层石墨烯包括在恒定厚度上而形成。 氢原子组合在切割的金刚石晶格上，其中石墨烯和金刚石不在AA堆叠的图形和改变的金刚石基材之间组合。 金刚石基材是粉末，膜或片形式。
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公开(公告)号：KR100666477B1
公开(公告)日：2007-01-11
申请号：KR1020050052077
申请日：2005-06-16
Applicant: 한국과학기술연구원
CPC classification number: D01F9/08 , B82Y30/00 , C01G23/053 , C01P2002/72 , C01P2004/03 , C01P2004/16 , C04B35/62259 , C04B35/63416 , C04B35/63432 , C04B2235/441 , D01D5/0038 , H01G9/2031 , H01G9/2059 , Y02E10/542 , Y02P70/521
Abstract: 본 발명은 이방성을 가지는 산화티타늄 나노로드 및 그의 제조방법에 관한 것으로, 특히 고분자와 산화티타늄 전구체의 초극세 복합섬유 및 상분리 현상을 이용한 단결정 산화티타늄 나노로드를 제조한다. 구체적으로는 산화티타늄 전구체와, 상기 전구체와 상용성인 고분자, 및 용매를 포함하는 혼합 용액을 준비하고, 상기 혼합 용액을 방사하여 상기 산화티타늄 전구체와 고분자간의 상분리에 의하여 내부에 미세한 섬유소가 포함된 산화티타늄 고분자 복합섬유를 형성하고, 상기 복합섬유를 열압착하고, 상기 복합섬유에서 상기 고분자 물질을 제거하여 산화티타늄 나노로드를 얻는다. 본 발명에 따른 산화티타늄 나노로드는 염료 감응형 태양전지, 각종 센서, 광촉매 등으로 이용될 수 있다.
산화티타늄 나노로드, 무기 초극세섬유, 전기방사-
Patent Agency Ranking
公开(公告)号：KR1020060131552A
公开(公告)日：2006-12-20
申请号：KR1020050052077
申请日：2005-06-16
Applicant: 한국과학기술연구원
CPC classification number: D01F9/08 , B82Y30/00 , C01G23/053 , C01P2002/72 , C01P2004/03 , C01P2004/16 , C04B35/62259 , C04B35/63416 , C04B35/63432 , C04B2235/441 , D01D5/0038 , H01G9/2031 , H01G9/2059 , Y02E10/542 , Y02P70/521 , C09C1/36 , C01G23/047
Abstract: Provided are a method for conveniently preparing a quantity of titanium dioxide nanorod, a nanorod prepared by the method which has a uniform and large surface area and can be used for dye sensitized solar cell, sensor, photocatalyst, and so on. The method comprises the steps of (i) preparing a mixture solution comprising a precursor of titanium dioxide, a polymer compatible with the precursor, and a solvent, (ii) spinning the mixture solution, so as to form a titanium dioxide-polymer composite fiber containing fine fiber therein by phase separation of the precursor of titanium dioxide and the polymer, (iii) heat-pressing the composite fiber, (iv) removing the polymer from the composite fiber to obtain a titanium dioxide nanorod. The dye sensitized solar cell, sensor, and photocatalyst are manufactured by a metal plate having an aggregate of the titanium dioxide nanorod, a transparent and conductive glass substrate or plastic substrate coated with ITO(indium-doped tin oxide) or FTO(fluorine-doped tin oxide).
Abstract translation: 提供了一种方便地制备一定量的二氧化钛纳米棒的方法，该纳米棒是通过具有均匀且大的表面积的方法制备的，可用于染料敏化太阳能电池，传感器，光催化剂等。 该方法包括以下步骤：（i）制备包含二氧化钛前体，与前体相容的聚合物和溶剂的混合溶液，（ii）纺丝混合溶液，以形成二氧化钛 - 聚合物复合纤维 通过相分离二氧化钛和聚合物的前体，（iii）热压复合纤维，（iv）从复合纤维中除去聚合物以获得二氧化钛纳米棒，从而含有细纤维。 染料敏化太阳能电池，传感器和光催化剂由具有二氧化钛纳米棒聚集体，透明导电玻璃基板或涂有ITO（掺杂铟的氧化锡）或FTO（氟掺杂的）的塑料基板的金属板制造 氧化锡）。
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17.发明公开나노분말 연소반응기와, 그 나노분말 연소반응기를 이용한나노분말 합성장치와, 그 나노분말 합성장치의 제어방법 有权用于纳豆的燃烧反应器，具有燃烧反应器的纳米器的合成装置和控制合成装置的方法
公开(公告)号：KR1020060124479A
公开(公告)日：2006-12-05
申请号：KR1020050046430
申请日：2005-05-31
Applicant: 한국과학기술연구원
IPC: B22F9/16
CPC classification number: C22C1/08 , B22F3/114 , B22F2998/00 , C22C2001/081 , C22C2001/082 , F23D2900/21007 , B22F7/002
Abstract: A nanopowder combustion reactor of which structure is optimized to prevent oxides from being deposited on an inner wall of a reaction nozzle, secure uniformity of a flame and accurately control temperature of the flame, a nanopowder synthesizing system using the nanopowder combustion reactor, and a method of controlling the nanopowder synthesizing system are provided. A nanopowder combustion reactor(10) comprises: an oxidizing gas supply nozzle(12) to which an oxidizing gas pipe(11) is connected; a gas supply part(15) having a fuel gas pipe(13) and a precursor gas pipe(14); and a reaction nozzle(18) which forms a concentric circle together with the oxidizing gas supply nozzle within the oxidizing gas supply nozzle, is connected to the gas supply part, and has oxidizing gas inflow holes(17) disposed at positions thereof adjacent to an injection port(16) for injecting a flame. The nanopowder combustion reactor comprises a backflow prevention plate(19) which divides the interior of the reaction nozzle, to which the precursor gas pipe is penetratingly connected, and on which a plurality of pores are formed to pass a fuel gas and prevent backflow of a precursor gas.
Abstract translation: 优化其结构的纳米粉燃烧反应器，以防止氧化物沉积在反应喷嘴的内壁上，确保火焰的均匀性和精确控制火焰的温度，使用纳米粉末燃烧反应器的纳米粉末合成系统，以及方法 提供了控制纳米粉体合成系统的方法。 纳米粉燃烧反应器（10）包括：氧化气体供给喷嘴（12），氧化气体管道（11）连接到所述氧化气体供应喷嘴; 具有燃气管（13）和前体气管（14）的气体供给部（15）。 和在氧化剂气体供给喷嘴内与氧化剂气体供给喷嘴一起形成同心圆的反应喷嘴（18）与气体供给部连接，具有设置在与氧化气体供给喷嘴相邻的位置的氧化气体流入孔（17） 喷射口（16），用于喷射火焰。 该纳米粉燃烧反应器包括防反射板（19），其将反应喷嘴的内部分开，前体气体管道穿过其连接，其上形成有多个气孔以通过燃料气体并防止 前体气体。
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公开(公告)号：KR101273936B1
公开(公告)日：2013-06-11
申请号：KR1020110080650
申请日：2011-08-12
Applicant: 한국과학기술연구원
CPC classification number: C22C38/18 , C21D6/002 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D2201/05 , C21D2211/005 , C22C38/005 , C22C38/02 , C22C38/06 , C22C38/24 , C22C38/28 , H01M8/021 , H01M2008/1293 , Y02P70/56
Abstract: Cr을 함유한 페라이트계 스테인리스강으로서 상기 강의 표면에서 후방 산란 전자 회절법(EBSP)에 의해 측정된 {110} 결정방위의 분율이 5% 이상인 페라이트계 스테인리스강; 및 상기 페라이트계 스테인리스강의 표면에 형성된 크롬 산화물막을 포함하는 내산화성 페라이트계 스테인리스강이 제공된다.
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公开(公告)号：KR100482278B1
公开(公告)日：2005-04-14
申请号：KR1020020064314
申请日：2002-10-21
Applicant: 한국과학기술연구원
Abstract: 본 발명은 값이 싼 저급의 계면활성제와 용매 내에서 쉽고 간편한 방법으로 저급의 철 펜타카르보닐[Fe(CO)
5 ]을 열분해하고 잔류 산소에 의한 산화반응을 진행시켜 2가와 3가의 혼합 산화철 나노분말을 제조하거나, 이 분말 용액에 공기를 주입시켜 산화 반응이 더욱 진행된 마그헤마이트(γ-Fe
2 O
3 ) 나노분말을 제조함으로써, 산화상태에 관계없이 직경이 20 nm 이하로 균일하고 초상자성을 가지며, 입자 사이에 뭉침이 없어 의료용으로 활용이 적합한 구형 산화철 나노분말의 경제적인 합성법을 제공한다.-
公开(公告)号：KR1020040029871A
公开(公告)日：2004-04-08
申请号：KR1020020060309
申请日：2002-10-02
Applicant: 한국과학기술연구원
CPC classification number: B82Y30/00 , C01G49/06 , C01P2002/72 , C01P2004/04 , C01P2004/64 , C01P2006/42 , Y10S977/773 , Y10S977/775 , Y10S977/777 , Y10S977/811
Abstract: PURPOSE: Maghemite (γ-Fe2O3) nanopowder used as ultra high density magnetic recording materials by having superior shape anisotropy and magnetic characteristics, hematite (α-Fe2O3) nanopowder used as precursor or catalyst of the maghemite and nanopowder in which the maghemite and hematite are mixed, and a preparation method of shape anisotropic metal oxide nanopowder are provided. CONSTITUTION: In a method for preparing nano sized metal oxide powder having superior magnetic characteristics, the method comprises the steps of precipitating and separating gel shaped amorphous metal oxide powder by adding protonic scavenger to the reverse micelle solution after forming a reverse micelle solution by adding distilled water, surfactant and solvent to metal salts of trivalence or more; controlling a mole ratio of metal oxide to surfactant by cleaning the gel shaped amorphous metal oxide powder using polar solvent; and crystallizing nano sized metal oxide particles through heating or reflux reaction by dispersing the gel shaped amorphous metal oxide powder into a non-polar solvent having high boiling point.
Abstract translation: 目的：通过具有优异的形状各向异性和磁特性，用作赤铁矿（α-Fe2O3）纳米粉末作为磁赤铁矿和纳米粉末的磁赤铁矿和赤铁矿的前驱体或催化剂，用作超高密度磁记录材料的磁赤铁矿（γ-Fe2O3）纳米粉末 提供了形状各向异性金属氧化物纳米粉末的制备方法。 构成：在制备具有优异磁特性的纳米尺寸金属氧化物粉末的方法中，该方法包括以下步骤：通过加入蒸馏器形成反胶束溶液后，通过向反胶束溶液中加入质子清除剂来沉淀和分离凝胶状无定形金属氧化物粉末 水，表面活性剂和溶剂与三价或更多的金属盐; 通过使用极性溶剂清洗凝胶状无定形金属氧化物粉末来控制金属氧化物与表面活性剂的摩尔比; 并通过将凝胶状无定形金属氧化物粉末分散到具有高沸点的非极性溶剂中，通过加热或回流反应结晶纳米尺寸的金属氧化物颗粒。
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