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    Nitrogen Oxide Oxidation Activity of Pseudo-Brookite Compositions as Zero-PGM Catalysts for Diesel Oxidation Applications
    1.
    发明申请
    Nitrogen Oxide Oxidation Activity of Pseudo-Brookite Compositions as Zero-PGM Catalysts for Diesel Oxidation Applications 审中-公开

    公开(公告)号：US20180290128A1

    公开(公告)日：2018-10-11

    申请号：US15765225

    申请日：2016-09-30

    申请人： CLEAN DIESEL TECHNOLOGIES, INC.

    发明人： Zahra Nazarpoor ,  Stephen J. Golden

    IPC分类号： B01J23/83 ,  B01J6/00

    摘要： Zero-PGM (ZPGM) catalyst materials including pseudo-brookite compositions for use in diesel oxidation catalyst (DOC) applications are disclosed. The disclosed doped pseudo-brookite compositions include A-site partially doped pseudo-brookite compositions, such as, Sr-doped and Ce-doped pseudo-brookite compositions, as well as B-site partially doped pseudo-brookite compositions, such as, Fe-doped, Co-doped Ni-doped, and Ti-doped pseudo-brookite compositions. The disclosed doped pseudo-brookite compositions, including calcination at various temperatures, are subjected to a DOC standard light-off (LO) test methodology to assess/verify catalyst activity as well as to determine the effect of the use of a dopant in an A-site cation or a B-site cation within a pseudo-brookite composition. The disclosed doped pseudo-brookite compositions exhibit higher NO oxidation catalyst activities when compared to bulk powder pseudo-brookite, thereby indicating improved thermal stability and catalyst activity when using a dopant in an A-site cation or in a B-site cation within a pseudo-brookite composition.

    Coating process of Zero-PGM catalysts and methods thereof
    6.
    发明授权
    Coating process of Zero-PGM catalysts and methods thereof 有权
    零P​​GM催化剂的涂布方法及其方法

    公开(公告)号：US09227177B2

    公开(公告)日：2016-01-05

    申请号：US14183056

    申请日：2014-02-18

    申请人： Zahra Nazarpoor

    发明人： Zahra Nazarpoor

    IPC分类号： B01J23/32 ,  B01J23/889 ,  B01J37/03 ,  B01J23/00 ,  B01D53/94

    CPC分类号： B01J23/8892 ,  B01D53/945 ,  B01D2255/207 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/65 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01J23/005 ,  B01J37/035 ,  B01J37/038 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/48 ,  B01J2523/56 ,  B01J2523/72

    摘要： Variations of coating processes of ZPGM catalyst materials for TWC applications are disclosed. The disclosed coating processes for ZPGM materials are enabled in the preparation of ZPGM catalyst samples according to a plurality of catalyst configurations, which may include washcoat and an overcoat layer with or without an impregnation layer, including Cu—Mn spinel and doped Zirconia support oxide, prepared according to variations of disclosed coating processes. Activity measurements under isothermal steady state sweep test condition are considered under lean condition and rich condition close to stoichiometric condition to analyze the influence of disclosed coating processes on TWC performance of ZPGM catalysts. Different coating processes may substantially increase TWC activity, providing improved levels of NO, CO, and HC conversions and cost effective manufacturing solutions.

    摘要翻译： 公开了用于TWC应用的ZPGM催化剂材料的涂覆方法的变化。 所公开的ZPGM材料的涂覆方法可用于根据多种催化剂构型制备ZPGM催化剂样品，其可以包括修补基面涂层和具有或不具有浸渍层（包括Cu-Mn尖晶石和掺杂的氧化锆载体氧化物）的外涂层， 根据公开的涂覆方法的变化制备。 在等温稳态扫描试验条件下的活性测量在稀薄条件和富含条件下接近化学计量条件下进行分析，以分析所公开涂层方法对ZPGM催化剂TWC性能的影响。 不同的涂布方法可以显着提高TWC活性，提供改进的NO，CO和HC转化水平以及具有成本效益的制造方案。

    Systems and Methods for Managing a Synergistic Relationship Between PGM and Copper-Manganese in a Three Way Catalyst Systems
    10.
    发明申请
    Systems and Methods for Managing a Synergistic Relationship Between PGM and Copper-Manganese in a Three Way Catalyst Systems 审中-公开
    用于管理三元催化剂体系中PGM和铜锰之间协同关系的系统和方法

    公开(公告)号：US20150148225A1

    公开(公告)日：2015-05-28

    申请号：US14090938

    申请日：2013-11-26

    申请人： Zahra Nazarpoor ,  Stephen J. Golden

    发明人： Zahra Nazarpoor ,  Stephen J. Golden

    IPC分类号： B01J23/89

    CPC分类号： B01J23/8986 ,  B01D53/945 ,  B01D2255/102 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/908 ,  B01J23/005 ,  B01J37/0244 ,  B01J37/038 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/31 ,  B01J2523/56 ,  B01J2523/72 ,  B01J2523/824

    摘要： Synergized Platinum Group Metals (SPGM) catalyst systems for TWC application are disclosed. Disclosed SPGM catalyst systems may include a washcoat with a Cu—Mn spinel structure, Cu1.0Mn2.0O4, supported on Nb2O5—ZrO2 and an overcoat that includes PGM supported on carrier material oxides, such as alumina. SPGM catalyst system that includes the spinel structure of Cu1.0Mn2.0O4 show significant improvement in nitrogen oxide reduction performance under stoichiometric operating conditions and especially under lean operating conditions, which allows a reduced consumption of fuel. Additionally, disclosed SPGM catalyst system with spinel structure of Cu1.0Mn2.0O4 also enhances the reduction of carbon monoxide and hydrocarbon within catalytic converters. Furthermore, disclosed SPGM catalyst systems are found to have enhanced catalyst activity compared to same catalyst system that do not include Cu—Mn spinel catalysts, showing that there is a synergistic effect among PGM catalyst and Cu—Mn stoichiometric spinel structure within the disclosed SPGM catalyst system.

    摘要翻译： 披露了用于TWC应用的协同作用的铂族金属（SPGM）催化剂体系。 公开的SPGM催化剂体系可以包括具有Cu-Mn尖晶石结构的修补基面涂层，负载在Nb 2 O 5 -ZrO 2上的Cu1.0Mn2.0O4和包含负载在载体材料氧化物如氧化铝上的PGM的外涂层。 包括Cu1.0Mn2.0O4的尖晶石结构的SPGM催化剂体系在化学计量操作条件下，特别是在稀薄的操作条件下显示出氮氧化物还原性能的显着改善，这允许减少燃料消耗。 另外，公开了具有尖晶石结构的Cu1.0Mn2.0O4的SPGM催化剂体系还增强了催化转化器中一氧化碳和碳氢化合物的还原。 此外，与不含Cu-Mn尖晶石催化剂的相同催化剂体系相比，发现所公开的SPGM催化剂体系具有增强的催化剂活性，表明在所公开的SPGM催化剂中PGM催化剂和Cu-Mn化学计量的尖晶石结构之间存在协同效应 系统。