公开(公告)号：US20070281087A1

公开(公告)日：2007-12-06

申请号：US11669128

申请日：2007-01-30

申请人： Avetik Harutyunyan ,  Toshio Tokune ,  Elena Mora

发明人： Avetik Harutyunyan ,  Toshio Tokune ,  Elena Mora

IPC分类号： C23C16/26

CPC分类号： B01J35/0013 ,  B01J21/185 ,  B01J23/28 ,  B01J23/44 ,  B01J23/74 ,  B01J37/0211 ,  B01J37/343 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  Y10S977/843

摘要： Methods and processes for synthesizing single-wall carbon nanotubes are provided. A carbon precursor gas is contacted with metal catalysts deposited on a support material. The metal catalysts are preferably nanoparticles having diameters less than about 3 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon. Further, the rate at which hydrocarbons are fed into the reactor is equivalent to the rate at which the hydrocarbons react for given synthesis temperature. The methods produce carbon single-walled nanotubes having longer lengths.

摘要翻译： 提供了合成单壁碳纳米管的方法和方法。 碳前体气体与沉积在载体材料上的金属催化剂接触。 金属催化剂优选直径小于约3nm的纳米颗粒。 选择反应温度使其接近金属催化剂颗粒和碳的混合物的共晶点。 此外，烃进料到反应器中的速率等于烃在给定合成温度下反应的速率。 该方法产生长度较长的碳单壁碳纳米管。

公开(公告)号：US08026100B2

公开(公告)日：2011-09-27

申请号：US12108566

申请日：2008-04-24

申请人： Elena Mora ,  Avetik Harutyunyan

发明人： Elena Mora ,  Avetik Harutyunyan

IPC分类号： G01N23/00

CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/162 ,  C01B2202/02

摘要： The present teachings are directed toward methods of determining the lifetime of a catalyst for producing carbon nanotubes. The methods include providing different isotopically-labeled reaction components, primarily hydrocarbon sources containing different carbon isotopes, to the catalyst and measuring the Raman spectra of the carbon nanotubes produced with the different hydrocarbon sources.

摘要翻译： 本教导涉及确定用于生产碳纳米管的催化剂的寿命的方法。 这些方法包括向催化剂提供不同的同位素标记的反应组分，主要是含有不同碳同位素的烃源，并测量用不同烃源生产的碳纳米管的拉曼光谱。

公开(公告)号：US20080292532A1

公开(公告)日：2008-11-27

申请号：US12108566

申请日：2008-04-24

申请人： Elena Mora ,  Avetik Harutyunyan

发明人： Elena Mora ,  Avetik Harutyunyan

IPC分类号： G01N31/10 ,  D01F9/127

CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/162 ,  C01B2202/02

摘要： The present teachings are directed toward methods of determining the lifetime of a catalyst for producing carbon nanotubes. The methods include providing different isotopically-labeled reaction components, primarily hydrocarbon sources containing different carbon isotopes, to the catalyst and measuring the Raman spectra of the carbon nanotubes produced with the different hydrocarbon sources.

摘要翻译： 本教导涉及确定用于生产碳纳米管的催化剂的寿命的方法。 这些方法包括向催化剂提供不同的同位素标记的反应组分，主要是含有不同碳同位素的烃源，并测量用不同烃源生产的碳纳米管的拉曼光谱。

公开(公告)号：US08124043B2

公开(公告)日：2012-02-28

申请号：US11723185

申请日：2007-03-16

申请人： Avetik Harutyunyan ,  Elena Mora

发明人： Avetik Harutyunyan ,  Elena Mora

IPC分类号： D01F9/12 ,  B01J23/00 ,  H01B1/06

CPC分类号： H01M8/0234 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  H01M4/90 ,  H01M4/9083 ,  H01M4/92 ,  H01M4/926 ,  Y10S977/742

摘要： The present teachings are directed toward a matrix containing nanosized metal components and carbon nanotubes, with the carbon nanotubes being produced in situ by the nanosized metal components upon the contacting of the nanosized metal components with a carbon source under conditions sufficient to produce the carbon nanotubes. Also disclosed are methods of producing the matrix containing the nanosized metal components and carbon nanotubes.

摘要翻译： 本教导涉及含有纳米尺寸金属组分和碳纳米管的基质，其中在纳米金属组分与碳源在足以产生碳纳米管的条件下接触时，纳米金属组分原位产生碳纳米管。 还公开了制备含有纳米尺寸金属组分和碳纳米管的基质的方法。

公开(公告)号：US20080280751A1

公开(公告)日：2008-11-13

申请号：US11723185

申请日：2007-03-16

申请人： Avetik Harutyunyan ,  Elena Mora

发明人： Avetik Harutyunyan ,  Elena Mora

IPC分类号： B01J21/18 ,  D01F9/12 ,  B01J23/06 ,  B01J23/26 ,  B01J23/42 ,  B01J23/44 ,  B01J23/28 ,  B01J23/50 ,  B01J23/52 ,  B01J29/04 ,  H01B1/04

CPC分类号： H01M8/0234 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  H01M4/90 ,  H01M4/9083 ,  H01M4/92 ,  H01M4/926 ,  Y10S977/742

摘要： The present teachings are directed toward a matrix containing nanosized metal components and carbon nanotubes, with the carbon nanotubes being produced in situ by the nanosized metal components upon the contacting of the nanosized metal components with a carbon source under conditions sufficient to produce the carbon nanotubes. Also disclosed are methods of producing the matrix containing the nanosized metal components and carbon nanotubes.

摘要翻译： 本教导涉及含有纳米尺寸金属组分和碳纳米管的基质，其中在纳米金属组分与碳源在足以产生碳纳米管的条件下接触时，纳米金属组分原位产生碳纳米管。 还公开了制备含有纳米尺寸金属组分和碳纳米管的基质的方法。

公开(公告)号：US07871591B2

公开(公告)日：2011-01-18

申请号：US11329499

申请日：2006-01-10

申请人： Avetik Harutyunyan ,  Elena Mora ,  Toshio Tokune

发明人： Avetik Harutyunyan ,  Elena Mora ,  Toshio Tokune

IPC分类号： D01F9/12

CPC分类号： D01F9/1272 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02

摘要： Methods and processes for synthesizing single-wall carbon nanotubes are provided. A carbon precursor gas is contacted with metal catalysts deposited on a support material. The metal catalysts are preferably nanoparticles having diameters less than about 3 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon. Further, the rate at which hydrocarbons are fed into the reactor is equivalent to the rate of formation of carbon SWNTs for given synthesis temperature. The methods produce carbon single-walled nanotubes having longer lengths.

摘要翻译： 提供了合成单壁碳纳米管的方法和方法。 碳前体气体与沉积在载体材料上的金属催化剂接触。 金属催化剂优选直径小于约3nm的纳米颗粒。 选择反应温度使其接近金属催化剂颗粒和碳的混合物的共晶点。 此外，烃类进料到反应器中的速率等于给定合成温度下碳SWNTs的形成速率。 该方法产生长度较长的碳单壁碳纳米管。

公开(公告)号：US20060228289A1

公开(公告)日：2006-10-12

申请号：US11329499

申请日：2006-01-10

申请人： Avetik Harutyunyan ,  Elena Mora ,  Toshio Tokune

发明人： Avetik Harutyunyan ,  Elena Mora ,  Toshio Tokune

IPC分类号： D01F9/12

CPC分类号： D01F9/1272 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02

摘要： Methods and processes for synthesizing single-wall carbon nanotubes are provided. A carbon precursor gas is contacted with metal catalysts deposited on a support material. The metal catalysts are preferably nanoparticles having diameters less than about 3 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon. Further, the rate at which hydrocarbons are fed into the reactor is equivalent to the rate of formation of carbon SWNTs for given synthesis temperature. The methods produce carbon single-walled nanotubes having longer lengths.

摘要翻译： 提供了合成单壁碳纳米管的方法和方法。 碳前体气体与沉积在载体材料上的金属催化剂接触。 金属催化剂优选直径小于约3nm的纳米颗粒。 选择反应温度使其接近金属催化剂颗粒和碳的混合物的共晶点。 此外，烃类进料到反应器中的速率等于给定合成温度下碳SWNTs的形成速率。 该方法产生长度较长的碳单壁碳纳米管。

公开(公告)号：US20120237436A1

公开(公告)日：2012-09-20

申请号：US13429309

申请日：2012-03-23

申请人： Avetik R. Harutyunyan ,  Toshio Tokune ,  Elena Mora

发明人： Avetik R. Harutyunyan ,  Toshio Tokune ,  Elena Mora

IPC分类号： D01F9/127 ,  B82Y40/00 ,  B82Y30/00

CPC分类号： B01J35/0013 ,  B01J21/185 ,  B01J23/28 ,  B01J23/44 ,  B01J23/74 ,  B01J37/0211 ,  B01J37/343 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  Y10S977/843

摘要： Methods and processes for synthesizing single-wall carbon nanotubes are provided. A carbon precursor gas is contacted with metal catalysts deposited on a support material. The metal catalysts are preferably nanoparticles having diameters less than about 3 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon. Further, the rate at which hydrocarbons are fed into the reactor is equivalent to the rate at which the hydrocarbons react for given synthesis temperature. The methods produce carbon single-walled nanotubes having longer lengths.

摘要翻译： 提供了合成单壁碳纳米管的方法和方法。 碳前体气体与沉积在载体材料上的金属催化剂接触。 金属催化剂优选直径小于约3nm的纳米颗粒。 选择反应温度使其接近金属催化剂颗粒和碳的混合物的共晶点。 此外，烃进料到反应器中的速率等于烃在给定合成温度下反应的速率。 该方法产生长度较长的碳单壁碳纳米管。

公开(公告)号：US08163263B2

公开(公告)日：2012-04-24

申请号：US11669128

申请日：2007-01-30

申请人： Avetik R. Harutyunyan ,  Toshio Tokune ,  Elena Mora

发明人： Avetik R. Harutyunyan ,  Toshio Tokune ,  Elena Mora

IPC分类号： D01F9/12

CPC分类号： B01J35/0013 ,  B01J21/185 ,  B01J23/28 ,  B01J23/44 ,  B01J23/74 ,  B01J37/0211 ,  B01J37/343 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  Y10S977/843

摘要： Methods and processes for synthesizing single-wall carbon nanotubes are provided. A carbon precursor gas is contacted with metal catalysts deposited on a support material. The metal catalysts are preferably nanoparticles having diameters less than about 3 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon. Further, the rate at which hydrocarbons are fed into the reactor is equivalent to the rate at which the hydrocarbons react for given synthesis temperature. The methods produce carbon single-walled nanotubes having longer lengths.

摘要翻译： 提供了合成单壁碳纳米管的方法和方法。 碳前体气体与沉积在载体材料上的金属催化剂接触。 金属催化剂优选直径小于约3nm的纳米颗粒。 选择反应温度使其接近金属催化剂颗粒和碳的混合物的共晶点。 此外，烃进料到反应器中的速率等于烃在给定合成温度下反应的速率。 该方法产生长度较长的碳单壁碳纳米管。

公开(公告)号：US20090324484A1

公开(公告)日：2009-12-31

申请号：US12113814

申请日：2008-05-01

申请人： Avetik R. Harutyunyan ,  Elena Mora

发明人： Avetik R. Harutyunyan ,  Elena Mora

IPC分类号： D01F9/12

CPC分类号： D01F9/127 ,  B82Y30/00 ,  D01F9/1272 ,  D01F9/133

摘要： Methods and processes for synthesizing high quality carbon single-walled nanotubes (SWNTs) are provided. The method provides the means for optimization of amount of carbon precursor and transport gas per unit weight of catalyst. Efficiencies of about 20% can be achieved when contacting the catalyst deposited on a support with a carbon precursor gas with a flow rates of about 4.2×10−3 mol CH4/sec·g (Fe) at 780 ° C. Hydrocarbon flow rates of about 1.7 10−2 mol CH4/sec·g (Fe) and higher result in faster carbon SWNTs growth with improved quality. Slower rates of carbon atoms supply (˜4.5×1020 C atoms/s·g Fe or 6.4×10−4 mol CH4/sec·g (Fe)) result in the formation of more defective nanotubes.

摘要翻译： 提供了合成高品质碳单壁纳米管（SWNT）的方法和工艺。 该方法提供了用于优化碳前体和每单位重量催化剂的运输气体的量的方法。 当沉积在载体上的催化剂与碳前体气体接触时，在780℃下流速约为4.2×10-3 mol CH4 / sec.g（Fe），可以实现约20％的效率。 1.7 10-2 mol CH4 / sec.g（Fe）和更高的速度导致更快的碳SWNTs生长，质量提高。 碳原子供应速度越来越慢（约4.5x1020 C原子/秒，Fe或6.4×10-4摩尔CH4 / sec.g（Fe））导致形成更多的有缺陷的纳米管。