公开(公告)号：US07718710B2

公开(公告)日：2010-05-18

申请号：US11378057

申请日：2006-03-17

申请人： Cheng Zhang ,  Sukesh Parasher ,  Michael A. Rueter ,  Bing Zhou

发明人： Cheng Zhang ,  Sukesh Parasher ,  Michael A. Rueter ,  Bing Zhou

IPC分类号： C09K3/00 ,  B01J31/00 ,  B01J23/00

CPC分类号： B01J23/40 ,  B01J13/0034 ,  B01J13/0039 ,  B01J13/0043 ,  B01J35/0013 ,  B22F1/0022 ,  B22F9/26 ,  B22F2999/00 ,  B82Y30/00 ,  B22F2201/013

摘要： A method for manufacturing stable concentrated colloids containing metal nanoparticles in which the colloid is stabilized by adding a base. This allows the metal particles to be formed in higher concentration without forming larger agglomerates and/or precipitating. The method of manufacturing the stable colloidal metal nanoparticles of the present invention generally includes (i) providing a solution comprising a plurality of metal atoms, (ii) providing a solution comprising a plurality of organic agent molecules, each organic agent molecule comprising at least one functional group capable of bonding to the metal atoms, (iii) reacting the metal atoms in solution with the organic agent molecules in solution to form a mixture comprising a plurality of complexed metal atoms, (iv) reducing the complexed metal atoms in the mixture using a reducing agent to form a plurality of nanoparticles, and (v) adding an amount of a base to the mixture, thereby improving the stability of the nanoparticles in the mixture. The base may be added before or after forming the nanoparticles.

摘要翻译： 一种制备含有金属纳米粒子的稳定浓缩胶体的方法，其中胶体通过加入碱稳定。 这允许金属颗粒以更高的浓度形成而不形成较大的附聚物和/或沉淀。 制备本发明的稳定胶体金属纳米粒子的方法通常包括（i）提供包含多个金属原子的溶液，（ii）提供包含多个有机试剂分子的溶液，每个有机试剂分子包含至少一个 能够与金属原子键合的官能团，（iii）使溶液中的金属原子与溶液中的有机试剂分子反应，形成包含多个络合的金属原子的混合物，（iv）使用 还原剂形成多个纳米颗粒，和（v）向混合物中加入一定量的碱，从而提高混合物中纳米颗粒的稳定性。 可以在形成纳米颗粒之前或之后加入碱。

公开(公告)号：US07514476B2

公开(公告)日：2009-04-07

申请号：US11378877

申请日：2006-03-17

申请人： Sukesh Parasher ,  Cheng Zhang ,  Michael A. Rueter ,  Bing Zhou

发明人： Sukesh Parasher ,  Cheng Zhang ,  Michael A. Rueter ,  Bing Zhou

IPC分类号： C09K3/00 ,  C01B15/029

CPC分类号： B01J35/0013 ,  B01J13/0043 ,  B01J23/40 ,  B01J37/18 ,  B82Y30/00

摘要： Metal-containing colloids are manufactured by reacting a plurality of metal ions and a plurality of organic agent molecules to form metal complexes in a mixture having a pH greater than about 4.25. The metal complexes are reduced for at least 0.5 hour to form stable colloidal nanoparticles. The extended reduction time improves the stability of the colloidal particles as compared to shorter reduction times. The stability of the colloidal particles allows for colloids with higher concentrations of metal to be formed. The concentration of metal in the colloid is preferably at least about 150 ppm by weight.

摘要翻译： 含金属胶体通过使多种金属离子和多种有机试剂分子反应，在pH大于约4.25的混合物中形成金属络合物来制造。 将金属络合物还原至少0.5小时以形成稳定的胶体纳米颗粒。 与较短的还原时间相比，延长的还原时间提高了胶体颗粒的稳定性。 胶体颗粒的稳定性允许形成具有较高浓度金属的胶体。 胶体中金属的浓度优选为至少约150ppm重量。

公开(公告)号：US07632774B2

公开(公告)日：2009-12-15

申请号：US11393334

申请日：2006-03-30

申请人： Michael A. Rueter ,  Sukesh Parasher ,  Cheng Zhang ,  Bing Zhou

发明人： Michael A. Rueter ,  Sukesh Parasher ,  Cheng Zhang ,  Bing Zhou

IPC分类号： B01J31/16 ,  B01J21/00 ,  B01J23/00 ,  B01J27/053 ,  C01B15/01

CPC分类号： C01B15/029 ,  B01J21/08 ,  B01J23/44 ,  B01J35/0013 ,  B01J37/0207 ,  B01J37/0211 ,  B01J37/06 ,  B01J37/18

摘要： Supported catalysts include an inorganic solid support such as silica that is functionalized to have inorganic acid functional groups attached thereto. The functionalization of the support material is optimized by (i) limiting the amount of water present during the functionalization reaction, (ii) using a concentrated mineral acid or derivative thereof, and/or (iii) increasing the reaction temperature and/or reaction pressure. The acid-functionalized support material serves as a support for a metal nanoparticle catalyst. The nanocatalyst particles are preferably bonded to the support material through an organic molecule, oligomer, or polymer having functional groups that can bind to both the nanocatalyst particles and to the support material. The supported catalysts can advantageously be used for the direct synthesis of hydrogen peroxide from hydrogen and oxygen feed streams.

摘要翻译： 负载型催化剂包括无机固体载体如二氧化硅，其被官能化以具有连接到其上的无机酸官能团。 通过（i）限制官能化反应期间存在的水的量，（ii）使用浓缩的无机酸或其衍生物，和/或（iii）提高反应温度和/或反应压力来优化载体材料的功能化 。 酸官能化的载体材料用作金属纳米颗粒催化剂的载体。 纳米催化剂颗粒优选通过具有可结合纳米催化剂颗粒和载体材料的官能团的有机分子，低聚物或聚合物结合到载体材料上。 负载型催化剂可有利地用于从氢气和氧气进料流直接合成过氧化氢。

公开(公告)号：US20120020872A1

公开(公告)日：2012-01-26

申请号：US12840723

申请日：2010-07-21

申请人： Sukesh Parasher ,  Michael A. Rueter ,  Bing Zhou

发明人： Sukesh Parasher ,  Michael A. Rueter ,  Bing Zhou

IPC分类号： B01J23/44 ,  C01B15/01

CPC分类号： B01J35/0013 ,  B01J21/08 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J35/002 ,  B01J35/006 ,  B01J35/08 ,  B01J37/0203 ,  B01J37/16 ,  B01J37/18 ,  C01B15/029

摘要： Method for making a direct synthesis hydrogen peroxide catalyst includes (i) mixing together a solvent, a plurality of noble metal catalyst atoms, and a plurality of organic dispersing agent molecules, the organic dispersing agent molecules each including at least one functional group capable of bonding with the noble metal catalyst atoms; (ii) reacting the organic dispersing agent with the catalyst atoms to form complexed catalyst atoms and forming a plurality of catalytic nanoparticles from the complexed catalyst atoms; (iii) supporting the catalytic nanoparticles on a support material; and (iv) reducing the catalyst atoms at a temperature of at least 351° C. to yield a supported and activated direct synthesis hydrogen peroxide catalyst.

摘要翻译： 制备直接合成过氧化氢催化剂的方法包括（i）将溶剂，多种贵金属催化剂原子和多种有机分散剂分子混合在一起，所述有机分散剂分子各自包含至少一个能够键合的官能团 与贵金属催化剂原子; （ii）使有机分散剂与催化剂原子反应以形成络合的催化剂原子并从络合的催化剂原子形成多个催化纳米颗粒; （iii）将催化纳米颗粒负载在载体材料上; 和（iv）在至少351℃的温度下还原催化剂原子，得到负载和活化的直接合成过氧化氢催化剂。

公开(公告)号：US20070219083A1

公开(公告)日：2007-09-20

申请号：US11378057

申请日：2006-03-17

申请人： Cheng Zhang ,  Sukesh Parasher ,  Michael Rueter ,  Bing Zhou

发明人： Cheng Zhang ,  Sukesh Parasher ,  Michael Rueter ,  Bing Zhou

IPC分类号： B01J31/00 ,  B01F3/12 ,  B01F17/00

CPC分类号： B01J23/40 ,  B01J13/0034 ,  B01J13/0039 ,  B01J13/0043 ,  B01J35/0013 ,  B22F1/0022 ,  B22F9/26 ,  B22F2999/00 ,  B82Y30/00 ,  B22F2201/013

摘要： A method for manufacturing stable concentrated colloids containing metal nanoparticles in which the colloid is stabilized by adding a base. This allows the metal particles to be formed in higher concentration without forming larger agglomerates and/or precipitating. The method of manufacturing the stable colloidal metal nanoparticles of the present invention generally includes (i) providing a solution comprising a plurality of metal atoms, (ii) providing a solution comprising a plurality of organic agent molecules, each organic agent molecule comprising at least one functional group capable of bonding to the metal atoms, (iii) reacting the metal atoms in solution with the organic agent molecules in solution to form a mixture comprising a plurality of complexed metal atoms, (iv) reducing the complexed metal atoms in the mixture using a reducing agent to form a plurality of nanoparticles, and (v) adding an amount of a base to the mixture, thereby improving the stability of the nanoparticles in the mixture. The base may be added before or after forming the nanoparticles.

摘要翻译： 一种制备含有金属纳米粒子的稳定浓缩胶体的方法，其中胶体通过加入碱稳定。 这允许金属颗粒以更高的浓度形成而不形成较大的附聚物和/或沉淀。 制备本发明的稳定胶体金属纳米粒子的方法通常包括（i）提供包含多个金属原子的溶液，（ii）提供包含多个有机试剂分子的溶液，每个有机试剂分子包含至少一个 能够与金属原子键合的官能团，（iii）使溶液中的金属原子与溶液中的有机试剂分子反应，形成包含多个络合金属原子的混合物，（iv）使用 还原剂形成多个纳米颗粒，和（v）向混合物中加入一定量的碱，从而提高混合物中纳米颗粒的稳定性。 可以在形成纳米颗粒之前或之后加入碱。

公开(公告)号：US20070231248A1

公开(公告)日：2007-10-04

申请号：US11393334

申请日：2006-03-30

申请人： Michael Rueter ,  Sukesh Parasher ,  Cheng Zhang ,  Bing Zhou

发明人： Michael Rueter ,  Sukesh Parasher ,  Cheng Zhang ,  Bing Zhou

IPC分类号： C01B15/01 ,  B01J21/16

CPC分类号： C01B15/029 ,  B01J21/08 ,  B01J23/44 ,  B01J35/0013 ,  B01J37/0207 ,  B01J37/0211 ,  B01J37/06 ,  B01J37/18

摘要： Supported catalysts include an inorganic solid support such as silica that is functionalized to have inorganic acid functional groups attached thereto. The functionalization of the support material is optimized by (i) limiting the amount of water present during the functionalization reaction, (ii) using a concentrated mineral acid or derivative thereof, and/or (iii) increasing the reaction temperature and/or reaction pressure. The acid-functionalized support material serves as a support for a metal nanoparticle catalyst. The nanocatalyst particles are preferably bonded to the support material through an organic molecule, oligomer, or polymer having functional groups that can bind to both the nanocatalyst particles and to the support material. The supported catalysts can advantageously be used for the direct synthesis of hydrogen peroxide from hydrogen and oxygen feed streams.

摘要翻译： 负载型催化剂包括无机固体载体如二氧化硅，其被官能化以具有连接到其上的无机酸官能团。 通过（i）限制官能化反应期间存在的水的量，（ii）使用浓缩的无机酸或其衍生物，和/或（iii）增加反应温度和/或反应压力来优化载体材料的官能化 。 酸官能化的载体材料用作金属纳米颗粒催化剂的载体。 纳米催化剂颗粒优选通过具有可结合纳米催化剂颗粒和载体材料的官能团的有机分子，低聚物或聚合物结合到载体材料上。 负载型催化剂可有利地用于从氢气和氧气进料流直接合成过氧化氢。

公开(公告)号：US20070219084A1

公开(公告)日：2007-09-20

申请号：US11378877

申请日：2006-03-17

申请人： Sukesh Parasher ,  Cheng Zhang ,  Michael Rueter ,  Bing Zhou

发明人： Sukesh Parasher ,  Cheng Zhang ,  Michael Rueter ,  Bing Zhou

IPC分类号： B01J31/00 ,  B01F3/12 ,  B01F17/00

CPC分类号： B01J35/0013 ,  B01J13/0043 ,  B01J23/40 ,  B01J37/18 ,  B82Y30/00

摘要： Metal-containing colloids are manufactured by reacting a plurality of metal ions and a plurality of organic agent molecules to form metal complexes in a mixture having a pH greater than about 4.25. The metal complexes are reduced for at least 0.5 hour to form stable colloidal nanoparticles. The extended reduction time improves the stability of the colloidal particles as compared to shorter reduction times. The stability of the colloidal particles allows for colloids with higher concentrations of metal to be formed. The concentration of metal in the colloid is preferably at least about 150 ppm by weight.

摘要翻译： 含金属胶体通过使多种金属离子和多种有机试剂分子反应，在pH大于约4.25的混合物中形成金属络合物来制造。 将金属络合物还原至少0.5小时以形成稳定的胶体纳米颗粒。 与较短的还原时间相比，延长的还原时间提高了胶体颗粒的稳定性。 胶体颗粒的稳定性允许形成具有较高浓度金属的胶体。 胶体中金属的浓度优选为至少约150ppm重量。

公开(公告)号：US07709411B2

公开(公告)日：2010-05-04

申请号：US12421208

申请日：2009-04-09

申请人： Bing Zhou ,  Sukesh Parasher ,  Michael Rueter

发明人： Bing Zhou ,  Sukesh Parasher ,  Michael Rueter

IPC分类号： B01J25/00 ,  B01J23/40 ,  B01J23/42 ,  B01J31/00 ,  C22C38/00 ,  C22C5/04

CPC分类号： B01J35/0013 ,  B01J21/18 ,  B01J23/8906 ,  B01J37/0211 ,  B01J37/0219 ,  Y10S977/81

摘要： Multicomponent nanoparticles include two or more dissimilar components selected from different members of the group of noble metals, base transition metals, alkali earth metals, and rare earth metals and/or different groups of the periodic table of elements. The two or more dissimilar components are dispersed using a polyfunctional dispersing agent such that the multicomponent nanoparticles have a substantially uniform distribution of the two or more dissimilar components. The polyfunctional dispersing agent may include organic molecules, polymers, oligomers, or salts of these. The molecules of the dispersing agent bind to the dissimilar components to overcome same-component attraction, thereby allowing the dissimilar components to form multicomponent nanoparticles. Dissimilar components such as iron and platinum can be alloyed together using the dispersing agent to form substantially uniform multicomponent nanoparticles, which can be used alone or with a support. At least a portion of the dispersing agent is removed by reduction and/or oxidation.

摘要翻译： 多组分纳米颗粒包括选自贵金属，碱金属过渡金属，碱土金属和稀土金属和/或元素周期表的不同组中的不同成员的两种或更多种不同成分。 使用多官能分散剂分散两种或更多种不同的组分，使得多组分纳米颗粒具有两个或多个不同成分的基本上均匀的分布。 多官能分散剂可以包括这些的有机分子，聚合物，低聚物或盐。 分散剂的分子与不同的组分结合以克服相同成分的吸引，从而允许不同组分形成多组分纳米颗粒。 可以使用分散剂将诸如铁和铂的不同组分合金化以形成基本均匀的多组分纳米颗粒，其可以单独使用或与支持体一起使用。 通过还原和/或氧化除去至少一部分分散剂。

公开(公告)号：US07344591B2

公开(公告)日：2008-03-18

申请号：US11743528

申请日：2007-05-02

申请人： Bing Zhou ,  Sukesh Parasher ,  Zhihua Wu ,  Zhenhua Zhou

发明人： Bing Zhou ,  Sukesh Parasher ,  Zhihua Wu ,  Zhenhua Zhou

IPC分类号： C09C1/36

CPC分类号： C01G23/053 ,  B82Y30/00 ,  C01G23/0536 ,  C01P2004/04 ,  C01P2004/64 ,  C09C1/3607

摘要： Titanium dioxide nanoparticles are formed using a dispersing agent to form nanoparticles with desired size, shape, and uniformity. The titanium dioxide nanoparticles are formed by reacting an inorganic titanium compound with water or ice to form an aqueous titanium compound. The aqueous titanium compound is reacted or combined with a dispersing agent. Titanium dioxide nanoparticles are precipitated to form a suspension. The formation of the titanium dioxide nanoparticles is influenced by the presence of bonding of the dispersing agent. The size of the nanoparticles can be advantageously controlled by selecting the ratio of titanium to dispersing agent. In addition, the titanium dioxide nanoparticles can be used in suspension form or filtered and dried to form a powder.

摘要翻译： 使用分散剂形成二氧化钛纳米颗粒以形成具有所需尺寸，形状和均匀性的纳米颗粒。 通过使无机钛化合物与水或冰反应以形成钛化合物水溶液形成二氧化钛纳米颗粒。 水性钛化合物与分散剂反应或组合。 沉淀二氧化钛纳米颗粒以形成悬浮液。 二氧化钛纳米颗粒的形成受到分散剂结合的存在的影响。 可以通过选择钛与分散剂的比例来有利地控制纳米颗粒的尺寸。 此外，二氧化钛纳米颗粒可以悬浮形式使用或过滤并干燥以形成粉末。

公开(公告)号：US20060175230A1

公开(公告)日：2006-08-10

申请号：US11104324

申请日：2005-04-12

申请人： Bing Zhou ,  Sukesh Parasher ,  Michael Rueter ,  Zhihua Wu

发明人： Bing Zhou ,  Sukesh Parasher ,  Michael Rueter ,  Zhihua Wu

IPC分类号： C10G11/00

CPC分类号： A24B15/28 ,  A24B15/282 ,  A24B15/286 ,  A24B15/287 ,  A24B15/288 ,  A24D3/16 ,  C10L1/02

摘要： Organically complexed nanocatalyst compositions are applied to or mixed with a carbon-containing fuel (e.g., tobacco, coal, briquetted charcoal, biomass, or a liquid hydrocarbon like fuel oils or gasoline) in order to enhance combustion properties of the fuel. Nanocatalyst compositions can be applied to or mixed with a solid fuel substrate in order to reduce the amount of CO, hydrocarbons and soot produced by the fuel during combustion. In addition, coal can be treated with inventive nanocatalyst compositions to reduce the amount of NOx produced during combustion (e.g., by removing coal nitrogen in a low oxygen pre-combustion zone of a low NOx burner). The nanocatalyst compositions include nanocatalyst particles made using a dispersing agent. They can be formed as a stable suspension to facilitate storage, transportation and application of the catalyst nanoparticles to a fuel substrate.

摘要翻译： 将有机络合的纳米催化剂组合物施用于含碳燃料（例如烟草，煤，压块炭，生物质或液体烃如燃料油或汽油）或与其混合，以增强燃料的燃烧性能。 纳米催化剂组合物可以施加到固体燃料基质上或与固体燃料基质混合，以便减少在燃烧过程中由燃料产生的CO，烃和烟炱的量。 此外，煤可以用本发明的纳米催化剂组合物处理以减少在燃烧期间产生的NO x的量（例如，通过在低NOx燃烧器的低氧预燃烧区中除去煤氮）。 纳米催化剂组合物包括使用分散剂制备的纳米催化剂颗粒。 它们可以形成为稳定的悬浮液，以便于将催化剂纳米颗粒储存，运输和应用于燃料基质。