[특허]Injector apparatus and methods for production of nanostructures

[미국특허] Injector apparatus and methods for production of nanostructures 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	D01F-009/12 D01F-009/127 C01B-031/02 B01J-004/00 B01J-019/02 B01J-019/24 B82Y-030/00 B82Y-040/00
출원번호	US-0140263 (2008-06-16)
등록번호	US-9061913 (2015-06-23)
발명자 / 주소	Lashmore, David S. Chaffee, Jared Schauer, Mark
출원인 / 주소	Nanocomp Technologies, Inc.
대리인 / 주소	Greenberg Traurig, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 51

초록 ▼

An apparatus for use with a reactor for synthesis of nanostructures is provided. The apparatus includes a chamber having one end in fluid communication with the reactor and defining a pathway along which a fluid mixture for the synthesis of nanostructures can be injected into the reactor. The apparatus also has a tube in fluid communication with an opposite of the chamber to impart a venturi effect in order to generate from the fluid mixture small droplets prior to introducing the fluid mixture into the chamber. A heating zone is situated downstream from the tube to provide a temperature range sufficient to permit the formation, from components within the fluid mixture, of catalyst particles upon which nanostructures can be generated. A mechanism is further provided at a distal end of the chamber to minimize turbulent flow as the fluid mixture exits the chamber, and to impart a substantially laminar flow thereto. A method for synthesis of nanostructures is also provided.

대표청구항 ▼

1. A method for producing nanostructures, the method comprising: positioning an injector at an entry end of a reactor tube used in producing nanostructures, the injector having a first heater for generating a first temperature range at a first location within a pathway of the injector and a second heater, downstream of the first heater, for generating a second temperature range at a second location within the pathway of the injector different from the first temperature range, the first and second temperature ranges both serving to condition a mixture of a catalyst precursor, a conditioning compound, and a carbon source in order to control size distribution of the nanostructures subsequently produced in the reactor tube;nebulizing, within the pathway of an injector, the mixture into a plurality of small droplets;decomposing, within the first temperature range generated at the first location within the pathway of the injector, the catalyst precursor in the nebulized mixture to generate catalyst particles;decomposing, within the second temperature range generated at the second location within the pathway of the injector, the conditioning compound in the nebulized mixture;allowing, within the pathway of the injector, the decomposed conditioning compound to interact with the catalyst particles in order to control size distribution of the catalyst particles;directing the conditioned catalyst particles and the carbon source from within the injector into the reactor tube;decomposing, within the reactor tube, the carbon source into its constituent atoms upon exposure of the carbon source to a third temperature range within the reactor tube different from the first temperature range and the second temperature range within the injector; andpermitting the carbon atoms to interact with the conditioned catalyst particles having controlled size distribution, within the reactor tube, so that the produced nanostructures on the conditioned catalyst particles have controlled size distribution. 2. A method as set forth in claim 1, wherein the step of nebulizing includes maintaining the mixture at a temperature range so as to avoid condensation or boiling of the mixture. 3. A method as set forth in claim 1, wherein the first location within the pathway of the injector is downstream of where the step of nebulizing occurs. 4. A method as set forth in claim 1, wherein the step of decomposing the conditioning compound includes directing the nebulized mixture from the first location within the pathway of the injector to the downstream second location within the pathway of the injector at a rate sufficient to optimize decomposition of the conditioning compound for subsequent interaction with the catalyst particles. 5. A method as set forth in claim 1, wherein the step of decomposing the conditioning compound includes conditioning the catalyst particles at a location within the pathway of the injector down stream of the location where the step of decomposing the catalyst precursor occurs. 6. A method as set forth in claim 1, wherein the step of directing includes maintaining a laminar flow as the conditioned catalyst particles and the carbon source move from within the injector into the reactor tube. 7. A method as set forth in claim 1, further including maintaining a temperature gradient between the steps of decomposing the catalyst precursor, decomposing the conditioning compound, and decomposing the carbon source.

이 특허에 인용된 특허 (51) 인용/피인용 타임라인 분석

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[미국특허] Injector apparatus and methods for production of nanostructures 원문보기

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