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    Making nanocrystalline mesoporous spherical particles
    1.
    发明授权
    Making nanocrystalline mesoporous spherical particles 有权
    制备纳米晶介孔球形颗粒

    公开(公告)号：US08840816B2

    公开(公告)日：2014-09-23

    申请号：US13226733

    申请日：2011-09-07

    申请人： Qiangfeng Xiao ,  Mei Cai ,  Hiesang Sohn ,  Yunfeng Lu

    发明人： Qiangfeng Xiao ,  Mei Cai ,  Hiesang Sohn ,  Yunfeng Lu

    IPC分类号： B29B9/00 ,  B22F9/30 ,  B22F1/00 ,  C22C1/10

    CPC分类号： B22F9/30 ,  B22F1/0048 ,  B22F2302/10 ,  B22F2302/25 ,  B22F2304/00 ,  B22F2998/10 ,  B29B9/00 ,  C22C1/1026

    摘要： Spherical particles of one or more elemental metals and carbon are prepared from a precursor in the form of a metal oleate. The metal oleate precursor is dispersed in a liquid vehicle and aerosol droplets of the dispersed precursor are formed in a stream of an inert gas. The aerosol droplets are heated in the stream to decompose the oleate ligand portion of the precursor and form spherical particles that have a mesoporous nanocrystalline structure. The open mesopores of the spherical particles provide a high surface area for contact with fluids in many applications. For example, the mesopores can be infiltrated with a hydrogen absorbing material, such as magnesium hydride, in order to increase the hydrogen storage capacity of the particles.

    摘要翻译： 由金属油酸盐形式的前体制备一种或多种元素金属和碳的球形颗粒。 金属油酸酯前体分散在液体载体中，并且分散的前体的气溶胶小滴以惰性气体流形成。 气溶胶液滴在流中被加热以分解前体的油酸酯配体部分并形成具有介孔纳米晶体结构的球形颗粒。 在许多应用中，球形颗粒的开放的中孔提供了与流体接触的高表面积。 例如，为了增加颗粒的储氢能力，可以用吸氢材料如氢化镁渗透介孔。

    Homogeneous thermoelectric nanocomposite using core-shell nanoparticles
    3.
    发明授权
    Homogeneous thermoelectric nanocomposite using core-shell nanoparticles 有权
    使用核 - 壳纳米粒子的均匀热电纳米复合材料

    公开(公告)号：US08044292B2

    公开(公告)日：2011-10-25

    申请号：US11549203

    申请日：2006-10-13

    申请人： Qiangfeng Xiao ,  Yunfeng Lu ,  Junwei Wang ,  Minjuan Zhang

    发明人： Qiangfeng Xiao ,  Yunfeng Lu ,  Junwei Wang ,  Minjuan Zhang

    IPC分类号： H01L35/34 ,  H01L35/28

    CPC分类号： H01L35/26 ,  H01L35/16 ,  H01L35/34

    摘要： A thermoelectric material comprises core-shell particles having a core formed from a core material and a shell formed from a shell material. In representative examples, the shell material is a material showing an appreciable thermoelectric effect in bulk. The core material preferably has a lower thermal conductivity than the shell material. In representative examples, the core material is an inorganic oxide such as silica or alumina, and the shell material is a chalcogenide semiconductor such as a telluride, for example bismuth telluride. A thermoelectric material including such core-shell particles may have an improved thermoelectric figure of merit compared with a bulk sample of the shell material alone. Embodiments of the invention further include thermoelectric devices using such thermoelectric materials, and preparation techniques. The use of core-shell nanoparticles allows highly uniform nanocomposites to be formed, and embodiments of the invention also includes other materials and devices using core-shell particles.

    摘要翻译： 热电材料包括由芯材形成的芯和由壳材料形成的壳的核 - 壳颗粒。 在代表性实例中，外壳材料是显示出大量可观的热电效应的材料。 核心材料优选具有比壳材料低的热导率。 在代表性实例中，核心材料是无机氧化物如二氧化硅或氧化铝，外壳材料是硫属元素半导体，例如碲化物，例如碲化铋。 包含这种核 - 壳颗粒的热电材料与单独的壳材料的块状样品相比可以具有改进的热电品质因数。 本发明的实施例还包括使用这种热电材料的热电装置和制备技术。 使用核 - 壳纳米粒子允许形成高度均匀的纳米复合材料，本发明的实施方案还包括使用核 - 壳颗粒的其它材料和装置。

    Metal telluride nanocrystals and synthesis thereof
    4.
    发明授权
    Metal telluride nanocrystals and synthesis thereof 失效
    金属碲化物纳米晶体及其合成

    公开(公告)号：US07790137B2

    公开(公告)日：2010-09-07

    申请号：US11464265

    申请日：2006-08-14

    申请人： Qiangfeng Xiao ,  Yunfeng Lu ,  Minjuan Zhang

    发明人： Qiangfeng Xiao ,  Yunfeng Lu ,  Minjuan Zhang

    IPC分类号： C01B19/04

    CPC分类号： C01B19/007 ,  B82Y30/00 ,  C01B19/002 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  C04B35/547 ,  C04B35/6263 ,  C04B35/6325 ,  C04B35/636 ,  C04B35/6455 ,  C04B2235/3293 ,  C04B2235/3296 ,  C04B2235/3298 ,  C04B2235/449 ,  C04B2235/604 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/781

    摘要： A process for synthesizing a metal telluride is provided that includes the dissolution of a metal precursor in a solvent containing a ligand to form a metal-ligand complex soluble in the solvent. The metal-ligand complex is then reacted with a telluride-containing reagent to form metal telluride domains having a mean linear dimension of from 2 to 40 nanometers. NaHTe represents a well-suited telluride reagent. A composition is provided that includes a plurality of metal telluride crystalline domains (PbTe)1-x-y(SnTe)x(Bi2Te3)y  (I) having a mean linear dimension of from 2 to 40 nanometers inclusive where x is between 0 and 1 inclusive and y is between 0 and 1 inclusive with the proviso that x+y is less than or equal to 1. Each of the metal telluride crystalline domains has a surface passivated with a saccharide moiety or a polydentate carboxylate. A densified mass having a density of greater than 95% of the theoretical density includes a plurality of lead telluride, tin telluride, bismuth telluride, or a combination thereof of domains having a mean linear dimension of from 2 to 40 nanometers inclusive that have been subjected to hot isotactic pressing.

    摘要翻译： 提供了合成金属碲化物的方法，其包括将金属前体溶解在含有配体的溶剂中以形成可溶于溶剂的金属 - 配体络合物。 然后将金属 - 配体络合物与含碲化物的试剂反应以形成平均直线尺寸为2-40纳米的金属碲化物畴。 NaHTe代表一种非常适合的碲化物试剂。 提供一种组合物，其包含多个金属碲化物晶体结构域（PbTe）1-xy（SnTe）x（Bi 2 Te 3）y（I），其平均直线尺寸为2至40纳米，其中x在0和1之间 并且y在0和1之间，其中x + y小于或等于1.每个金属碲化物结晶域具有用糖部分或多齿羧酸酯钝化的表面。 具有大于理论密度的95％的密度的致密物质包括多个引线碲化物，碲化锡，碲化铋或其具有平均线性尺寸为2至40纳米的畴的组合，其已经经受 到热等压挤压。

    Making nanostructured porous hollow spheres with tunable structure
    5.
    发明授权
    Making nanostructured porous hollow spheres with tunable structure 有权
    制造具有可调结构的纳米结构多孔中空球体

    公开(公告)号：US08728361B2

    公开(公告)日：2014-05-20

    申请号：US12828353

    申请日：2010-07-01

    申请人： Mei Cai ,  Yunfeng Lu ,  Hiesang Sohn ,  Qiangfeng Xiao

    发明人： Mei Cai ,  Yunfeng Lu ,  Hiesang Sohn ,  Qiangfeng Xiao

    IPC分类号： B29B9/00

    CPC分类号： B01J13/02

    摘要： Hollow, porous, spherical metal-carbon composite particles, having nanostructures, are prepared from suitable precursor solutions containing metal-organic ligand coordination complexes with template. Such precursors may be made for each elemental metal to be in the spherical particles. The precursor solution is atomized as an aerosol in an inert gas stream and the aerosol stream heated to decompose the organic ligand portion of the precursor leaving the spherical metal-carbon composite or metal alloy-carbon composite particles. The organic ligand serves as a structure directing agent in the shaping of the spherical particles after the ligand has been removed. Other materials may also be used as permanent or removed templates. The morphology of the particles may be altered for an application by varying the preparation and composition of the metal precursor material, and the optional use of a template.

    摘要翻译： 具有纳米结构的空心多孔球状金属 - 碳复合材料颗粒由含有与模板的金属 - 有机配体配位配合物的合适的前体溶液制备。 这样的前体可以为每个元素金属制成球形颗粒。 前体溶液以惰性气流中的气溶胶雾化，加热气溶胶流分解前体的有机配体部分，离开球形金属 - 碳复合材料或金属合金 - 碳复合颗粒。 有机配体在去除配体后，用作球形颗粒成型中的结构导向剂。 其他材料也可用作永久或移除的模板。 可以通过改变金属前体材料的制备和组成以及任选使用模板来改变颗粒的形态以用于应用。

    MAKING NANOSTRUCTURED POROUS HOLLOW SPHERES WITH TUNABLE STRUCTURE
    6.
    发明申请
    MAKING NANOSTRUCTURED POROUS HOLLOW SPHERES WITH TUNABLE STRUCTURE 有权
    制造具有可调节结构的纳米多孔中空球

    公开(公告)号：US20120001354A1

    公开(公告)日：2012-01-05

    申请号：US12828353

    申请日：2010-07-01

    申请人： Mei CAI ,  Yungeng LU ,  Hiesang SOHN ,  Qiangfeng XIAO

    发明人： Mei CAI ,  Yungeng LU ,  Hiesang SOHN ,  Qiangfeng XIAO

    IPC分类号： B29B9/00

    CPC分类号： B01J13/02

    摘要： Hollow, porous, spherical metal-carbon composite particles, having nanostructures, are prepared from suitable precursor solutions containing metal-organic ligand coordination complexes with template. Such precursors may be made for each elemental metal to be in the spherical particles. The precursor solution is atomized as an aerosol in an inert gas stream and the aerosol stream heated to decompose the organic ligand portion of the precursor leaving the spherical metal-carbon composite or metal alloy-carbon composite particles. The organic ligand serves as a structure directing agent in the shaping of the spherical particles after the ligand has been removed. Other materials may also be used as permanent or removed templates. The morphology of the particles may be altered for an application by varying the preparation and composition of the metal precursor material, and the optional use of a template.

    摘要翻译： 具有纳米结构的空心多孔球状金属 - 碳复合材料颗粒由含有与模板的金属 - 有机配体配位配合物的合适的前体溶液制备。 这样的前体可以为每个元素金属制成球形颗粒。 前体溶液以惰性气流中的气溶胶雾化，加热气溶胶流分解前体的有机配体部分，离开球形金属 - 碳复合材料或金属合金 - 碳复合颗粒。 有机配体在去除配体后，用作球形颗粒成型中的结构导向剂。 其他材料也可用作永久或移除的模板。 可以通过改变金属前体材料的制备和组成以及任选使用模板来改变颗粒的形态以用于应用。

    METAL TELLURIDE NANOCRYSTALS AND SYNTHESIS THEREOF
    7.
    发明申请
    METAL TELLURIDE NANOCRYSTALS AND SYNTHESIS THEREOF 失效
    金属陶瓷纳米晶及其合成

    公开(公告)号：US20080036101A1

    公开(公告)日：2008-02-14

    申请号：US11464265

    申请日：2006-08-14

    申请人： Qiangfeng Xiao ,  Yunfeng Lu ,  Minjuan Zhang

    发明人： Qiangfeng Xiao ,  Yunfeng Lu ,  Minjuan Zhang

    IPC分类号： H01L21/00

    CPC分类号： C01B19/007 ,  B82Y30/00 ,  C01B19/002 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  C04B35/547 ,  C04B35/6263 ,  C04B35/6325 ,  C04B35/636 ,  C04B35/6455 ,  C04B2235/3293 ,  C04B2235/3296 ,  C04B2235/3298 ,  C04B2235/449 ,  C04B2235/604 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/781

    摘要： A process for synthesizing a metal telluride is provided that includes the dissolution of a metal precursor in a solvent containing a ligand to form a metal-ligand complex soluble in the solvent. The metal-ligand complex is then reacted with a telluride-containing reagent to form metal telluride domains having a mean linear dimension of from 2 to 40 nanometers. NaHTe represents a well-suited telluride reagent. A composition is provided that includes a plurality of metal telluride crystalline domains (PbTe)1-x-y(SnTe)x(Bi2Te3)y   (I) having a mean linear dimension of from 2 to 40 nanometers inclusive where x is between 0 and 1 inclusive and y is between 0 and 1 inclusive with the proviso that x+y is less than or equal to 1. Each of the metal telluride crystalline domains has a surface passivated with a saccharide moiety or a polydentate carboxylate. A densified mass having a density of greater than 95% of the theoretical density includes a plurality of lead telluride, tin telluride, bismuth telluride, or a combination thereof of domains having a mean linear dimension of from 2 to 40 nanometers inclusive that have been subjected to hot isotactic pressing.

    摘要翻译： 提供了合成金属碲化物的方法，其包括将金属前体溶解在含有配体的溶剂中以形成可溶于溶剂的金属 - 配体络合物。 然后将金属 - 配体络合物与含碲化物的试剂反应以形成平均直线尺寸为2-40纳米的金属碲化物畴。 NaHTe代表一种非常适合的碲化物试剂。 提供了一种组合物，其包括多个金属碲化物晶畴<？in-line-formula description =“In-line Formulas”end =“lead”→>（PbTe）1-xy ）（I）<βin-line-formula description =“（”1“）< 平均线性尺寸为2至40纳米，其中x在0和1之间，其中x在0和1之间，其中y在0和1之间，其中条件是x + y小于 或等于1.金属碲化物结晶域中的每一个具有用糖部分或多齿羧酸酯钝化的表面。 具有大于理论密度的95％的密度的致密物质包括多个引线碲化物，碲化锡，碲化铋或其具有平均线性尺寸为2至40纳米的畴的组合，其已经经受 到热等压挤压。

    MAKING NANOCRYSTALLINE MESOPOROUS SPHERICAL PARTICLES
    9.
    发明申请
    MAKING NANOCRYSTALLINE MESOPOROUS SPHERICAL PARTICLES 有权
    制造NANOCRYSTINE MESOPOROUS球形颗粒

    公开(公告)号：US20120001357A1

    公开(公告)日：2012-01-05

    申请号：US13226733

    申请日：2011-09-07

    申请人： Qiangfeng Xiao ,  Mei Cai ,  Hiesang Sohn ,  Yunfeng Lu

    发明人： Qiangfeng Xiao ,  Mei Cai ,  Hiesang Sohn ,  Yunfeng Lu

    IPC分类号： B29B9/12 ,  B29B9/16

    CPC分类号： B22F9/30 ,  B22F1/0048 ,  B22F2302/10 ,  B22F2302/25 ,  B22F2304/00 ,  B22F2998/10 ,  B29B9/00 ,  C22C1/1026

    摘要： Spherical particles of one or more elemental metals and carbon are prepared from a precursor in the form of a metal oleate. The metal oleate precursor is dispersed in a liquid vehicle and aerosol droplets of the dispersed precursor are formed in a stream of an inert gas. The aerosol droplets are heated in the stream to decompose the oleate ligand portion of the precursor and form spherical particles that have a mesoporous nanocrystalline structure. The open mesopores of the spherical particles provide a high surface area for contact with fluids in many applications. For example, the mesopores can be infiltrated with a hydrogen absorbing material, such as magnesium hydride, in order to increase the hydrogen storage capacity of the particles.

    摘要翻译： 由金属油酸盐形式的前体制备一种或多种元素金属和碳的球形颗粒。 金属油酸酯前体分散在液体载体中，并且分散的前体的气溶胶小滴以惰性气体流形成。 气溶胶液滴在流中被加热以分解前体的油酸酯配体部分并形成具有介孔纳米晶体结构的球形颗粒。 在许多应用中，球形颗粒的开放的中孔提供了与流体接触的高表面积。 例如，为了增加颗粒的储氢能力，可以用吸氢材料如氢化镁渗透介孔。

    METAL TELLURIDE NANOCRYSTALS AND SYNTHESIS THEREOF
    10.
    发明申请
    METAL TELLURIDE NANOCRYSTALS AND SYNTHESIS THEREOF 审中-公开
    金属陶瓷纳米晶及其合成

    公开(公告)号：US20080112877A1

    公开(公告)日：2008-05-15

    申请号：US11559485

    申请日：2006-11-14

    申请人： Qiangfeng Xiao ,  Yunfeng Lu ,  Minjuan Zhang

    发明人： Qiangfeng Xiao ,  Yunfeng Lu ,  Minjuan Zhang

    IPC分类号： C01B19/04 ,  C01B19/00

    CPC分类号： C01B19/007 ,  B82Y30/00 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  C04B35/547 ,  C04B35/6264 ,  C04B35/63416 ,  C04B35/63424 ,  C04B35/63488 ,  C04B35/636 ,  C04B35/64 ,  C04B35/6455 ,  C04B2235/3201 ,  C04B2235/3293 ,  C04B2235/3296 ,  C04B2235/3298 ,  C04B2235/44 ,  C04B2235/449 ,  C04B2235/6025 ,  C04B2235/6027 ,  C04B2235/604 ,  C04B2235/6581 ,  C04B2235/781

    摘要： A process for synthesizing a metal telluride is provided that includes the dissolution of a metal precursor in a solvent containing a ligand to form a metal-ligand complex soluble in the solvent. The metal-ligand complex is then reacted with a telluride-containing reagent to form metal telluride domains having a mean linear dimension of from 2 to 40 nanometers. NaHTe represents a well-suited telluride reagent. A composition is provided that includes a plurality of metal telluride crystalline domains (PbTe)1-x-y(SnTe)x(Bi2Te3)y   (I) having a mean linear dimension of from 2 to 40 nanometers inclusive where x is between 0 and 1 inclusive and y is between 0 and 1 inclusive with the proviso that x+y is less than or equal to 1. Each of the metal telluride crystalline domains has a surface passivated with a saccharide moiety or a polydentate carboxylate. A densified mass having a density of greater than 95% of the theoretical density includes a plurality of lead telluride, tin telluride, bismuth telluride, or a combination thereof of domains having a mean linear dimension of from 2 to 40 nanometers inclusive that have been subjected to hot isotactic pressing.

    摘要翻译： 提供了合成金属碲化物的方法，其包括将金属前体溶解在含有配体的溶剂中以形成可溶于溶剂的金属 - 配体络合物。 然后将金属 - 配体络合物与含碲化物的试剂反应以形成平均直线尺寸为2-40纳米的金属碲化物畴。 NaHTe代表一种非常适合的碲化物试剂。 提供了一种组合物，其包括多个金属碲化物晶畴<？in-line-formula description =“In-line Formulas”end =“lead”→>（PbTe）1-xy ）（I）<βin-line-formula description =“（”1“）< 平均线性尺寸为2至40纳米，其中x在0和1之间，其中x在0和1之间，其中y在0和1之间，其中条件是x + y小于 或等于1.金属碲化物结晶域中的每一个具有用糖部分或多齿羧酸酯钝化的表面。 具有大于理论密度的95％的密度的致密物质包括多个引线碲化物，碲化锡，碲化铋或其具有平均线性尺寸为2至40纳米的畴的组合，其已经经受 到热等压挤压。