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公开(公告)号：KR1020030071352A
公开(公告)日：2003-09-03
申请号：KR1020020011015
申请日：2002-02-28
Applicant: 재단법인서울대학교산학협력재단
Abstract: PURPOSE: A carbon nano particle having novel structure and properties is provided which is expected to take an active part in almost all industrial fields by showing noble magnetic characteristics and retaining electric field emission characteristics being equal to those of carbon nanotube. CONSTITUTION: The carbon nano particle comprises a plural layers in which plane(10) and curved surface(20) graphitization lamella structures are connected to each other with the center(30) inside the plural layers being empty, wherein the shape of the carbon nano particle is near to spherical shape, wherein an average particle diameter of the carbon nano particle is 100 nm or less, wherein the carbon nano particle shows magnetization pumping phenomena in which paramagnetism is gradually increased according to repetition of heating and cooling of the carbon nano particle in the temperature range of 50 to 150 deg.K, and wherein the carbon nano particle shows (002),(100) and(101) peaks in X ray diffraction analyzing data, and the (002) peak is formed in a horizontal asymmetric shape.
Abstract translation: 目的：提供具有新颖结构和性质的碳纳米颗粒，通过显示出与磁性碳纳米管相同的高磁性特性和保持电场发射特性，可望在几乎所有工业领域中积极参与。 构成：碳纳米颗粒包括多层，其中平面（10）和曲面（20）石墨化层结构彼此连接，多层中的中心（30）为空，其中碳纳米颗粒的形状 颗粒接近球形，其中碳纳米颗粒的平均粒径为100nm以下，其中，碳纳米颗粒显示出随着碳纳米颗粒的加热和冷却的重复而顺铂逐渐增加的磁化吸收现象 在50〜150℃的温度范围内，在X射线衍射分析数据中，碳纳米粒子显示（002），（100）和（101）峰，并且（002）峰形成为水平不对称 形状。
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Patent Agency Ranking
公开(公告)号：KR100855773B1
公开(公告)日：2008-09-01
申请号：KR1020070006939
申请日：2007-01-23
Applicant: 재단법인서울대학교산학협력재단
Abstract: 본 발명은 테라스 구조를 갖는 산화마그네슘 나노입자 및 이의 제조방법에 관한 것으로, 본 발명에 따른 산화마그네슘 나노입자는 테라스 구조를 가짐에 따라 음극발광시에 자외선 영역의 빛을 방출하는 특성이 있어 자외선이 필요한 나노 소자 등의 장치에 유용하게 사용될 수 있다.
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公开(公告)号：KR1020050021662A
公开(公告)日：2005-03-07
申请号：KR1020030058653
申请日：2003-08-25
Applicant: 재단법인서울대학교산학협력재단
IPC: H01J1/30
Abstract: PURPOSE: A method for inducing a field emission is provided to obtain field emission characteristics in an efficient and easy manner by using shell-shaped carbon nano particles. CONSTITUTION: A method comprises a step of attaching shell-shaped carbon nano particles to a metal coated substrate, and a step of using the metal coated substrate as a cathode for an electrode structure mounted in a high vacuum chamber. The cathode is produced by mixing shell-shaped carbon nano particles with an organic solvent, coating the metal coated substrate with the mixture, and drying the resultant structure.
Abstract translation: 目的：提供一种用于诱发场发射的方法，通过使用壳形碳纳米颗粒，以有效和容易的方式获得场致发射特性。 构成：一种方法包括将壳状碳纳米颗粒附着到金属涂覆的基底上的步骤，以及使用金属涂覆的基底作为安装在高真空室中的电极结构的阴极的步骤。 阴极通过将壳形碳纳米颗粒与有机溶剂混合制成，用混合物涂覆金属涂覆的基材，并干燥所得结构。
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公开(公告)号：KR1020080069342A
公开(公告)日：2008-07-28
申请号：KR1020070006939
申请日：2007-01-23
Applicant: 재단법인서울대학교산학협력재단
CPC classification number: C01F5/04 , B82B3/00 , C01P2004/64 , C01P2006/60
Abstract: Magnesium oxide nanoparticles having a terrace structure are provided to be easily and continuously prepared, and to show special cathodoluminescence characteristics of an ultraviolet region. Magnesium oxide nanoparticles have a terrace structure in which a particle crystal has terraced edges. A method for preparing the magnesium oxide nanoparticles includes a step of bringing magnesium powder into contact with hydrogen/oxygen diffusion flame, wherein the hydrogen/oxygen diffusion flame is formed by using hydrogen and oxygen in flow rates of 4-7 L/minute and 1-3 L/minute, respectively. The magnesium oxide nanoparticles have an average particle size ranging from 10 nm to 5 micron. Further, an average diameter of the magnesium powder is 45 mum or less.
Abstract translation: 提供具有平台结构的氧化镁纳米粒子，以容易且连续地制备，并且显示紫外线区域的特殊的阴极发光特性。 氧化镁纳米粒子具有其中颗粒晶体具有梯形边缘的平台结构。 制备氧化镁纳米颗粒的方法包括使镁粉与氢/氧扩散火焰接触的步骤，其中通过使用氢和氧以4-7L /分钟和1的流速形成氢/氧扩散火焰 -3 L /分钟。 氧化镁纳米颗粒的平均粒径为10nm至5微米。 此外，镁粉末的平均直径为45μm以下。
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公开(公告)号：KR100543959B1
公开(公告)日：2006-01-23
申请号：KR1020030058653
申请日：2003-08-25
Applicant: 재단법인서울대학교산학협력재단
IPC: H01J1/30
Abstract: 본 발명은 쉘 형상의 탄소 미세입자를 이용하여 전계 방출 특성을 유도하는 방법에 관한 것으로, 쉘 형상의 탄소 미세입자를 금속 코팅 기판에 부착시킨 후 이를 고진공 챔버내에 장착되는 전극 구조체의 음전극(cathode)으로 사용함으로써 전계 방출을 유도하는 방법을 제공한다.
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公开(公告)号：KR100519418B1
公开(公告)日：2005-10-07
申请号：KR1020020011015
申请日：2002-02-28
Applicant: 재단법인서울대학교산학협력재단
CPC classification number: B82Y30/00 , B82Y40/00 , C01B32/18 , Y10T428/2982
Abstract: 본 발명은 신규한 구조를 갖는 탄소 미세 입자에 관한 것으로서, 본 발명에 의한 탄소 미세 입자는 평면 및 곡면 흑연화 층상 구조(graphene sheet)가 연결된 복수개의 층으로 이루어져 있으며 구형에 가깝고 속이 비어 있는 것을 특징으로 한다. 이와 같은 신규한 구조를 갖는 본 발명에 의한 탄소 미세 입자는 탄소 나노튜브에 필적하는 전계 방출특성까지 보유하여 앞으로 항공우주, 생명공학, 환경에너지, 재료산업, 의약의료, 전자컴퓨터 등 거의 모든 분야에서의 활약이 기대된다.
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