Abstract:
본 발명은 상기와 같은 문제점을 포함하여 여러 문제점들을 해결하기 위한 것으로, 탄소나노튜브의 내부에 포함된 촉매금속입자를 산화열처리로 산화시킴으로써 탄소나노튜브를 화학적으로 안정화 시키는 방법의 제공을 목적으로 한다. 상기 목적을 달성하기 위한 본 발명의 일 관점에 따르면, 촉매금속을 포함하는 탄소나노튜브를 준비하는 단계; 및 상기 탄소나노튜브를 열처리하여 상기 촉매금속을 산화시키는 단계;를 포함한다.
Abstract:
본 발명은 투명전도성 박막 및 그 제조방법에 관한 것으로서, 보다 상세하게는 탄소나노튜브를 포함하는 투명전도성 박막에 탄소나노섬유를 성장시켜 전기전도도를 향상시킨 투명전도성 박막 및 그 제조방법에 관한 것으로서, 본 발명의 탄소나노튜브 투명전도성 박막은 탄소나노튜브들을 포함하는 시트, 상기 탄소나노튜브들에서 성장한 탄소나노섬유들 및 상기 탄소나노섬유의 일단에 위치하는 촉매를 포함하여 이루어질 수 있고, 본 발명의 탄소나노튜브 투명전도성 박막의 제조방법은 (1) 탄소나노튜브들을 포함하는 시트를 형성하는 단계, (2) 상기 시트 상에 촉매 입자 또는 촉매를 포함하는 박막을 형성하는 단계 및 (3) 고온에서 탄화수소를 포함하는 가스를 공급하여 상기 탄소나노튜브에 탄소나노섬유를 성장시키는 단계를 포함하거나, (a) 탄� �나노튜브들과 촉매 성분을 포함하는 혼합용액을 준비하는 단계, (b) 상기 혼합용액을 스프레이 코팅하여 시트를 형성하는 단계 및 (c) 고온에서 탄화수소를 포함하는 가스를 공급하여 상기 탄소나노튜브에 탄소나노섬유를 성장시키는 단계를 포한하여 이루어질 수 있다.
Abstract:
PURPOSE: A transparent conductive thin film is provided to improve the electric conductivity by reducing contact resistance between carbon nanotubes. CONSTITUTION: A transparent conductive thin film comprises a sheet containing carbon nanotubes(1), carbon nanofibers(5) grown from the carbon nanotubes, and a catalyst in one end of the carbon nanofibers. The manufacturing method of the transparent conductive thin film comprises: a step of forming the sheet containing carbon nanotubes; a step of forming catalyst particles(4) or a thin film containing the catalyst on the sheet; and a step of growing carbon nanofiber in the carbon nanotubes by supplying gas including hydrocarbon.
Abstract:
PURPOSE: An Sn or Ce ion-added electrolytes for soluble lead redox flow battery and batteries comprising the same are provided to control the discharge time by controlling the crystallinity and the micro structure of a Pb layer or PbO2 layer formed on an electrode in the charge of a soluble lead redox flow battery. CONSTITUTION: Sn or Ce ions are added to electrolytes for soluble lead redox flow battery, wherein the supply source of Sn ions is sulfonic acid tin and the supply source of Ce ions is carium carbonate. The concentration of Sn or Ce ions is 0.005~0.02M. A soluble lead redox flow battery comprises a cell including a positive electrode and a negative electrode, a tank storing the electrolyte for a soluble lead redox flow battery, and a pump circulating the electrolyte into the cell.
Abstract:
Environment contaminant cancellation technique using a nano structure oxide thin film is provided to improve convenience, safety, sustainable hydrogen production comparing to a conventional a method using high pressure hydrogen. A device for removing a perchlorate ion includes the followings: a first electrode(101) generating a proton electron when light is irradiated by forming a photoelectrochemical conversion oxide; a proton conduction film(105) moving a hydrogen, and formed between the first electrode and the second electrode; and a conducting wire in which an electrode is moved by connecting the first electrode and the second electrode. The first electrode and the second electrode are made of carbon fiber or carbon paper.
Abstract:
본 발명은 하전 입자의 선택적 바이어스에 의한 선택영역 코팅 기술로서, 금속/산화물/금속 나노 다층 선택영역 코팅 공정이 가능하다. 본 발명에 의한 나노박막은 박막을 형성하고자 하는 물질을 원자 또는 분자 단위의 하전 입자로 준비하고, 나노 크기의 패턴이 형성된 기판에 국부적인 바이어스를 형성시키고, 상기 하전 입자를 상기 나노 패턴에 선택적으로 코팅시키는 방법에 의하여 형성된다. 보텀업 공정, 나노소자, 선택 코팅, 금속/산화물 나노 다층 박막, 이온화 스퍼터링, 바이어스,
Abstract:
PURPOSE: To provide a corrosion resisting coating method for improving corrosion resistance of magnesium alloy more efficiently, environmentally friendly and economically by offering anodizing process of high voltage and low temperature using an economic efficiency improved electrolyte solution, and an electrolyte solution used in the method. CONSTITUTION: The electrolyte solution comprises 100 to 150 g of sodium silicate, 20 to 25 g of potassium acetate and 100 to 150 g of sodium hydroxide on the basis of 1 L of the total aqueous solution, wherein the electrolyte solution further comprises 8 to 12 g of borate, 4 to 8 g of phosphate or both thereof on the basis of 1 L of the total aqueous solution, and wherein the borate is sodium metaborate, and the phosphate is trisodium phosphate. The corrosion resisting coating method comprises a step (1) of alkaline washing the magnesium alloy sample by dipping a magnesium alloy sample (1) into a strong alkali solution of pH 11 or more; and a step (2) of anodizing the magnesium alloy sample in an electrolyte solution containing potassium acetate as hydroxide, silicate solution and carboxylate by connecting the anode (2) to the washed magnesium alloy sample, wherein the anodizing step is performed by connecting the anode to the magnesium alloy sample, using a stainless steel, copper, lead or magnesium substrate as the cathode (3) and flowing a certain current to both ends of the anode and the cathode.
Abstract:
PURPOSE: This patent application is a technique about a design and a control of multi-layer thin membrane formative equipment, the manufacturing cost is high and the expensive equipment is need. CONSTITUTION: After injection of mono-layer bismuth between strontium bismuth tantalum niobium (SBTN) layer, a formation of hetero structure DBTN/Bi2O3/SBTN, according to the treatment of a low temperature and after heating, the injected bismuth oxide layer diffuse to top and bottom SBTN layer. This is a control method of a surplus bismuth quantity to injection of another bismuth layer between SBTN layers.