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    Scintillator nanoparticles and method of making
    1.
    发明授权
    Scintillator nanoparticles and method of making 失效
    闪烁纳米颗粒及其制备方法

    公开(公告)号：US07449128B2

    公开(公告)日：2008-11-11

    申请号：US10872867

    申请日：2004-06-21

    Applicant: Kalaga Murali Krishna ,  Sergio Paulo Martins Loureiro ,  Mohan Manoharan ,  Geetha Karavoor

    Inventor： Kalaga Murali Krishna ,  Sergio Paulo Martins Loureiro ,  Mohan Manoharan ,  Geetha Karavoor

    IPC: C09K11/08

    CPC classification number: C09K11/7769 ,  C09K11/7787 ,  Y10S977/776 ,  Y10S977/811

    Abstract: A nanomaterial comprising a plurality of nanoparticles. The plurality of nanoparticles includes at least one dopant and at least one of a metal oxide, a metal phosphate, a metal silicate, a metal hafnate, a metal aluminate, and combinations thereof. The metal is one of an alkali earth metal, a lanthanide, and a transition metal. The plurality of nanoparticles is formed by forming a homogenized precursor solution of at least one metal precursor and at least one dopant precursor, adding a fuel and optionally at least one of a phosphate source, a silicate source, a hafnate source, and an aluminate source to the precursor solution, removing water from the precursor solution to leave a reaction concentrate, and igniting the reaction concentrate to form a powder comprising the nanomaterial. In one embodiment, the nanomaterial is a scintillator material.

    Abstract translation: 包含多个纳米颗粒的纳米材料。 多个纳米颗粒包括至少一种掺杂剂和金属氧化物，金属磷酸盐，金属硅酸盐，金属铪酸盐，金属铝酸盐及其组合中的至少一种。 金属是碱土金属，镧系元素和过渡金属之一。 多个纳米颗粒通过形成至少一种金属前体和至少一种掺杂剂前体的均质化前体溶液形成，添加燃料和任选的至少一种磷酸盐源，硅酸盐源，铪源和铝酸盐源 向前体溶液中除去前体溶液中的水以留下反应浓缩物，并点燃反应浓缩物以形成包含纳米材料的粉末。 在一个实施例中，纳米材料是闪烁体材料。

    GAS SENSOR AND METHOD OF MAKING
    5.
    发明申请
    GAS SENSOR AND METHOD OF MAKING 审中-公开
    气体传感器及其制作方法

    公开(公告)号：US20090159447A1

    公开(公告)日：2009-06-25

    申请号：US11960769

    申请日：2007-12-20

    Applicant: Jun Cui ,  John Patrick Lemmon ,  Kalaga Murali Krishna ,  Geetha Karavoor

    Inventor： Jun Cui ,  John Patrick Lemmon ,  Kalaga Murali Krishna ,  Geetha Karavoor

    IPC: G01N27/26 ,  B05D5/12

    CPC classification number: G01N27/125

    Abstract: A gas sensor is disclosed. The gas sensor includes a gas sensing layer including at least one chemical compound with the general chemical formula MαO62Nγ, wherein M is at least one chemical element selected from the group consisting of W, Ti, Ta, Sr, Mo, and combinations thereof, and α, β, γ are self-consistent, said gas sensing layer being capable of detecting at least one gas selected from the group consisting of NO, NO2, SO2, O2, H2O, CO, H2, and NH3, at least one electrode positioned within a adhesion layer composed of a material selected from the group consisting of Ti, Cr, and combinations thereof, and a response modification layer composed of a material selected from the group consisting of Mg, Ti, V, Cr, Mn, Co, Ni, Zn, Nb, Ru, Rh, Pd, Ta, W, Re, Pt, and combinations thereof. The at least one electrode is in communication with the sensing layer. A method of fabricating the gas sensor is also disclosed.

    Abstract translation: 公开了一种气体传感器。 气体传感器包括气体感测层，其包含至少一种具有通式化学式MalphaO62Ngamma的化合物，其中M是选自W，Ti，Ta，Sr，Mo及其组合中的至少一种化学元素，和 所述气体感测层能够检测至少一种选自NO，NO 2，SO 2，O 2，H 2 O，CO，H 2和NH 3的气体，至少一个电极定位 在由选自Ti，Cr及其组合的材料组成的粘合层内，以及由选自Mg，Ti，V，Cr，Mn，Co，Ni的材料构成的响应改性层 ，Zn，Nb，Ru，Rh，Pd，Ta，W，Re，Pt及其组合。 至少一个电极与传感层连通。 还公开了一种制造气体传感器的方法。

    SCINTILLATOR NANOPARTICLES AND METHOD OF MAKING
    7.
    发明申请
    SCINTILLATOR NANOPARTICLES AND METHOD OF MAKING 失效
    SCANTILATOR纳米粒子及其制备方法

    公开(公告)号：US20080246004A1

    公开(公告)日：2008-10-09

    申请号：US10872867

    申请日：2004-06-21

    Applicant: Kalaga Murali Krishna ,  Sergio Paulo Martins Loureiro ,  Mohan Manoharan ,  Geetha Karavoor

    Inventor： Kalaga Murali Krishna ,  Sergio Paulo Martins Loureiro ,  Mohan Manoharan ,  Geetha Karavoor

    IPC: C09K11/08 ,  C09K11/77 ,  C09K11/54 ,  C09K11/66

    CPC classification number: C09K11/7769 ,  C09K11/7787 ,  Y10S977/776 ,  Y10S977/811

    Abstract: A nanomaterial comprising a plurality of nanoparticles. The plurality of nanoparticles includes at least one dopant and at least one of a metal oxide, a metal phosphate, a metal silicate, a metal hafnate, a metal aluminate, and combinations thereof. The metal is one of an alkali earth metal, a lanthanide, and a transition metal. The plurality of nanoparticles is formed by forming a homogenized precursor solution of at least one metal precursor and at least one dopant precursor, adding a fuel and optionally at least one of a phosphate source, a silicate source, a hafnate source, and an aluminate source to the precursor solution, removing water from the precursor solution to leave a reaction concentrate, and igniting the reaction concentrate to form a powder comprising the nanomaterial. In one embodiment, the nanomaterial is a scintillator material.

    Abstract translation: 包含多个纳米颗粒的纳米材料。 多个纳米颗粒包括至少一种掺杂剂和金属氧化物，金属磷酸盐，金属硅酸盐，金属铪酸盐，金属铝酸盐及其组合中的至少一种。 金属是碱土金属，镧系元素和过渡金属之一。 多个纳米颗粒通过形成至少一种金属前体和至少一种掺杂剂前体的均质化前体溶液形成，添加燃料和任选的至少一种磷酸盐源，硅酸盐源，铪源和铝酸盐源 向前体溶液中除去前体溶液中的水以留下反应浓缩物，并点燃反应浓缩物以形成包含纳米材料的粉末。 在一个实施例中，纳米材料是闪烁体材料。

    Gas sensor and method of making
    9.
    发明授权
    Gas sensor and method of making 有权
    气体传感器及制作方法

    公开(公告)号：US07827852B2

    公开(公告)日：2010-11-09

    申请号：US11961092

    申请日：2007-12-20

    Applicant: Jun Cui ,  John Patrick Lemmon ,  Kalaga Murali Krishna ,  Geetha Karavoor ,  Vinayak Tilak ,  Mohandas Nayak ,  Ravikumar Hanumantha

    Inventor： Jun Cui ,  John Patrick Lemmon ,  Kalaga Murali Krishna ,  Geetha Karavoor ,  Vinayak Tilak ,  Mohandas Nayak ,  Ravikumar Hanumantha

    IPC: G01N7/10

    CPC classification number: G01N27/125 ,  F02D41/146 ,  F02D41/1476

    Abstract: A gas sensor is disclosed. The gas sensor includes a gas sensing layer including doped oxygen deficient tungsten oxide and a dopant selected from the group consisting of Re, Ni, Cr, V, W, and a combination thereof, at least one electrode positioned within a layer of titanium, and a response modification layer. The at least one electrode is in communication with the gas sensing layer and the gas sensing layer is capable of detecting at least one gas selected from the group consisting of NO, NO2, SOx O2, H2O, and NH3. A method of fabricating the gas sensor is also disclosed.

    Abstract translation: 公开了一种气体传感器。 气体传感器包括气体感测层，其包括掺杂的氧缺乏氧化钨和选自Re，Ni，Cr，V，W及其组合的掺杂剂，位于钛层内的至少一个电极，以及 响应修改层。 所述至少一个电极与所述气体感测层连通，并且所述气体感测层能够检测至少一种选自NO，NO 2，SO x O 2，H 2 O和NH 3的气体。 还公开了一种制造气体传感器的方法。

    Monodisperse nanoparticles and method of making
    10.
    发明授权
    Monodisperse nanoparticles and method of making 失效
    单分散纳米颗粒和制备方法

    公开(公告)号：US07820124B1

    公开(公告)日：2010-10-26

    申请号：US11543608

    申请日：2006-10-05

    Applicant: Kalaga Murali Krishna ,  Sergio Paulo Martins Loureiro ,  Mohan Manoharan ,  Geetha Karavoor ,  Shweta Saraswat

    Inventor： Kalaga Murali Krishna ,  Sergio Paulo Martins Loureiro ,  Mohan Manoharan ,  Geetha Karavoor ,  Shweta Saraswat

    IPC: C07C2/00

    CPC classification number: C01B25/26 ,  B82Y30/00 ,  C01B33/20 ,  C01B35/12 ,  C01P2004/32 ,  C01P2004/64

    Abstract: A material comprising a plurality of nanoparticles. Each of the plurality of nanoparticles includes at least one of a metal phosphate, a metal silicate, a metal oxide, a metal borate, a metal aluminate, and combinations thereof. The plurality of nanoparticles is substantially monodisperse. Also disclosed is a method of making a plurality of substantially monodisperse nanoparticles. The method includes providing a slurry of at least one metal precursor, maintaining the pH of the slurry at a predetermined value, mechanically milling the slurry, drying the slurry to form a powder; and calcining the powder at a predetermined temperature to form the plurality of nanoparticles.

    Abstract translation: 包含多个纳米颗粒的材料。 多个纳米颗粒中的每一个包括金属磷酸盐，金属硅酸盐，金属氧化物，金属硼酸盐，金属铝酸盐及其组合中的至少一种。 多个纳米颗粒基本上是单分散的。 还公开了制备多个基本上单分散纳米颗粒的方法。 该方法包括提供至少一种金属前体的浆料，将浆料的pH保持在预定值，机械研磨浆料，干燥浆料以形成粉末; 并在预定温度下煅烧粉末以形成多个纳米颗粒。

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