公开(公告)号：KR100832309B1

公开(公告)日：2008-05-26

申请号：KR1020070118906

申请日：2007-11-21

Applicant: 한국과학기술원

Inventor： 강정구 ,  최윤정 ,  이정우 ,  최정훈

IPC: C01B3/00 ,  C07F7/02 ,  C07F5/02

CPC classification number: C01B3/0015 ,  B01J20/226 ,  Y02E60/327 ,  Y02E60/328 ,  Y10S502/526

Abstract: A new hydrogen storage material that absorbs and releases a large amount of hydrogen at a room temperature condition by doping light metal cations on covalent organic frameworks is provided, a method of storing hydrogen by using the new hydrogen storage material is provided. A covalent organic framework derivative for hydrogen storage is characterized in that: the covalent organic framework derivative has a crystal structure consisting of a covalent bond of an organic molecule with a metal cation-doped triangular structure and an organic molecule with a rectangular tetrahedral structure; a ring in the center of the triangular structure is a B3O3 ring in which three boron(B) atoms and three oxygen(O) atoms are bonded in the form of a regular hexagonal ring, or a C2O2B ring in which two carbon(C) atoms and one boron(B) atom are bonded in the form of a pentagonal ring; the B3O3 ring or the C2O2B ring is formed in such a way that two of three covalent bonds coming from the boron(B) is covalently bonded to oxygen to form the center of the triangular structure, remaining one of the covalent bonds is bonded to an organic molecule consisting of a phenyl group to form a triangular structure with three apexes, each of the apexes of the triangular structure having at least one phenyl group; and a central atom of the rectangular tetrahedral structure is carbon(C) or silicon(Si), and four bonds of the central atom of the rectangular tetrahedral structure are covalently bonded to the organic molecule consisting of phenyl groups that form the apexes of the triangular structure.

Abstract translation: 提供了一种通过在共价有机骨架上掺杂轻金属阳离子在室温条件下吸收和释放大量氢的新的储氢材料，提供了一种通过使用新的储氢材料储存氢的方法。 用于储氢的共价有机骨架衍生物的特征在于：共价有机骨架衍生物具有由有机分子与金属阳离子掺杂三角结构的共价键和具有矩形四面体结构的有机分子组成的晶体结构; 三角形结构的中心环是B3O3环，其中三个硼（B）原子和三个氧（O）原子以正六方环结合，或C2O2B环，其中两个碳（C） 原子和一个硼（B）原子以五边形环的形式键合; 形成B3O3环或C2O2B环，使得来自硼（B）的三个共价键中的两个共价键与氧共价键形成三角结构的中心，其中一个共价键键合到 由苯基组成的有机分子形成具有三个顶点的三角形结构，三角形结构的每个顶点具有至少一个苯基; 并且矩形四面体结构的中心原子是碳（C）或硅（Si），矩形四面体结构的中心原子的四个键共价结合到由形成三角形顶点的苯基组成的有机分子 结构体。

公开(公告)号：KR100831069B1

公开(公告)日：2008-05-22

申请号：KR1020070102100

申请日：2007-10-10

Applicant: 한국과학기술원

Inventor： 강정구 ,  사지오거스틴 ,  이정우 ,  신원호 ,  한규성 ,  최정훈

IPC: B01J23/745 ,  B82B3/00 ,  B01J37/34 ,  B01J23/75

CPC classification number: B01J23/74 ,  B01J21/185 ,  B01J35/10 ,  B01J37/0238 ,  B01J37/349 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B32/18 ,  Y10S977/775 ,  Y10S977/777 ,  Y10T428/12014

Abstract: A nano-sized metal crater catalyst having a crater-shaped hole structure formed in the center thereof is provided to obtain characteristics and structure of the nano material, a method for preparing the nano-sized metal crater catalyst is provided to simplify the process and treat a large quantity of metal nanoparticles at a low cost, and a nano material controlled to a desired structure by preparing the nano material using the metal crater catalyst is provided. A nano-sized metal crater catalyst is characterized in that vacancy and dislocation are formed in one or two metal nanoparticle(s) selected from the group consisting of iron(Fe) and cobalt(Co), and a crater-shaped hole with a diameter of 1 to 20 nm is formed in the center of the metal nanoparticle(s) having a height of 3 to 16 nm. A method for preparing a nano-sized metal crater catalyst comprises the steps of: (a) performing plasma pre-treatment of a film of metal nanoparticles deposited onto a substrate at a plasma power of 500 to 800 W and a temperature of 600 to 1000 deg.C in a nitrogen gas atmosphere with a nitrogen gas flow rate of 80 to 120 sccm to form vacancy and dislocation in the metal nanoparticles; and (b) performing chemical etching of the plasma pre-treated metal nanoparticle film for 2 to 4 hours by using a mixed solution comprising ethanol as a solvent and 10 to 30 %(v/v) of nitric acid containing 1 to 10 wt.% of iodine(I) relative to the ethanol to form a hole in the center of the metal nanoparticles. The metal is at least one selected from metal elements of Groups 3 to 14. The metal is one or two selected from the group consisting of iron(Fe) and cobalt(Co).

Abstract translation: 为了获得纳米材料的特性和结构，提供了一种具有形成在其中心的凹坑形孔结构的纳米级金属火山口催化剂，提供了一种制备纳米尺寸金属火山口催化剂的方法，以简化工艺和处理 提供了低成本的大量金属纳米粒子，以及通过使用金属火山口催化剂制备纳米材料而将其控制到所需结构的纳米材料。 纳米尺寸金属火山口催化剂的特征在于，在选自铁（Fe）和钴（Co）的一种或两种金属纳米颗粒中形成空位和位错，并且具有直径 在高度为3〜16nm的金属纳米粒子的中心形成1〜20nm。 制备纳米尺寸金属火山口催化剂的方法包括以下步骤：（a）以500至800W的等离子体功率和600至1000的温度进行沉积在基板上的金属纳米颗粒膜的等离子体预处理 在氮气气氛中，氮气流速为80〜120sccm，在金属纳米粒子中形成空位和位错; 和（b）通过使用包含乙醇作为溶剂的混合溶液和10至30％（v / v）含有1-10重量％的（V / V）的硝酸进行等离子体预处理的金属纳米颗粒膜的化学蚀刻2至4小时。 相对于乙醇的碘（I）的百分比在金属纳米粒子的中心形成一个孔。 金属是选自第3〜14族的金属元素中的至少一种。金属是选自铁（Fe）和钴（Co）中的一种或两种。

公开(公告)号：KR101328592B1

公开(公告)日：2013-11-20

申请号：KR1020110085497

申请日：2011-08-26

Applicant: 한국과학기술원

Inventor： 강정구 ,  최경민 ,  전형준 ,  최정훈 ,  박정효 ,  야히,오마르엠.

IPC: C07F3/06 ,  C07F1/08 ,  B01J20/22 ,  B01J20/30

Abstract: 본 발명은 금속이온 전구체 및 유기 다리 리간드를 용매에 용해시키는 제1단계; (ii) 상기 유기 다리 리간드의 첨가량 대비 1배 초과 1.5배 이하의 분자량을 갖는 기공 유도체를 첨가하거나, 상기 유기 다리 리간드의 첨가량 대비 0.3배 이상 0.8배 이하의 분자량을 갖는 기공 유도체를 첨가하는 제2단계; 및 (iii) 상기 첨가 후 2시간 이상 4시간 이하 동안 가열하여 유기금속 리간드를 제조하는 제3단계; 를 포함하는 금속유기골격구조체의 제조방법에 관한 것으로 상기 금속유기골격구조체는 기공이 구조체의 모든 부분에 퍼져 있는 스폰지 형상 또는 기공이 구조체의 중심으로 부터 50% 이내의 중심부에만 존재하는 스폰지 형상인 것을 특징으로 한다.
본 발명의 기공 유도체는 성장하는 금속유기골격구조체 결정에 카르복실기를 활용하여 결합하고 카본 체인의 긴 꼬리를 사용하여 주변의 결정성장을 국부적으로 방해함으로서 이종 기공구조를 가지는 금속유기골격구조체를 형성한다. 또한 이종 기공구조를 가지는 금속유기골격구조체는 기체저장 활용에 있어 더욱 향상된 특성을 보여주었다.

公开(公告)号：KR1020120119102A

公开(公告)日：2012-10-30

申请号：KR1020110036863

申请日：2011-04-20

Applicant: 한국과학기술원

Inventor： 강정구 ,  이엽 ,  최정훈 ,  전형준 ,  최경민

IPC: B01J23/755 ,  B01J23/72 ,  B01J37/03 ,  B01J35/02

CPC classification number: B01J37/00 ,  B01J23/70 ,  B01J35/004

Abstract: PURPOSE: A manufacturing method of titanium embedded layered double hydroxide photo-catalysts is provided to simplify manufacturing processes using nickel or copper, and titanium as metals. CONSTITUTION: A manufacturing method of titanium embedded layered double hydroxide photo-catalysts for oxidizing water under a visible ray region includes the following: a metal precursor and a titanium metal precursor are added into an urea aqueous solution to be dissolved, and a solution is obtained; the solution is reacted to obtain a resultant product; the resultant product is centrifuged by a centrifuge, and a washing process and a drying process are further implemented.

Abstract translation: 目的：提供钛嵌层式双氢氧化物光催化剂的制造方法，以简化使用镍或铜和钛作为金属的制造工艺。 构成：用于在可见光区域氧化水的钛嵌入层状双氢氧化物光催化剂的制造方法包括：将金属前体和钛金属前体加入待溶解的尿素水溶液中，得到溶液 ; 使溶液反应得到所得产物; 将所得产物通过离心机离心，进一步实施洗涤过程和干燥过程。

公开(公告)号：KR100926794B1

公开(公告)日：2009-11-13

申请号：KR1020090049623

申请日：2009-06-04

Applicant: 한국과학기술원

Inventor： 강정구 ,  김세윤 ,  최정훈 ,  권준호

IPC: C08J3/12 ,  C08L61/28 ,  C08G12/32

CPC classification number: C08G12/32 ,  C01B32/05 ,  C01P2004/32 ,  C08J3/14 ,  C08J9/26 ,  C08J2201/0422 ,  C08J2361/28 ,  C08L61/28

Abstract: PURPOSE: A method for preparing melamine-formaldehyde spheres is provided to obtain a microporous melamine-formaldehyde sphere by only carbonization process and to reduce manufacturing cost and time. CONSTITUTION: A method for preparing melamine-formaldehyde spheres with nano-sized pores comprises the steps of: preparing a melamine-formaldehyde resin by mixing melamine and formaldehyde solutions and heating the mixture; obtaining solid powder by mixing and stirring the melamine-formaldehyde resin and a surfactant, followed by centrifuging the mixture; and obtaining the melamine-formaldehyde spheres by washing the solid powder with ethanol solution and drying the solid powder.

Abstract translation: 目的：提供三聚氰胺 - 甲醛球的制备方法，通过碳化过程获得微孔三聚氰胺 - 甲醛球，降低制造成本和时间。 构成：用纳米尺寸孔制备三聚氰胺 - 甲醛球的方法包括以下步骤：通过混合三聚氰胺和甲醛溶液并加热混合物来制备三聚氰胺 - 甲醛树脂; 通过混合和搅拌三聚氰胺甲醛树脂和表面活性剂获得固体粉末，然后离心混合物; 并用乙醇溶液洗涤固体粉末并干燥固体粉末，得到三聚氰胺 - 甲醛球。