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    Zero-PGM TWC with High Redox Reversibility
    2.
    发明申请
    Zero-PGM TWC with High Redox Reversibility 审中-公开
    零P​​GM TWC具有高氧化还原反转性

    公开(公告)号：US20160361711A1

    公开(公告)日：2016-12-15

    申请号：US15182330

    申请日：2016-06-14

    申请人： Clean Diesel Technologies, Inc.

    发明人： Zahra Nazarpoor ,  Stephen J. Golden

    IPC分类号： B01J23/889 ,  B01D53/94 ,  B01J35/02 ,  C01G45/12 ,  B01J23/00

    CPC分类号： B01J23/8892 ,  B01D53/945 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/65 ,  B01D2255/908 ,  B01J23/005 ,  C01G3/02 ,  C01G45/02 ,  C01G45/1221 ,  C01G45/1235 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/04 ,  Y02C20/10 ,  Y02T10/22

    摘要： The present disclosure describes zero-platinum group metals (ZPGM) material compositions including binary Cu—Mn spinel oxide powders having stable reduction/oxidation (redox) reversibility useful for TWC and oxygen storage material applications. The behavior of Cu—Mn spinel oxide powder is analyzed under oxidation-reduction environments to determine redox reversibility, catalytic activity, and spinel structure stability. Characterization of spinel powder is performed employing X-ray diffraction analysis, hydrogen temperature-programmed reduction technique, transmission electron microscopy analysis, and X-ray photoelectron spectroscopy analysis. Test results confirm the phase and structural stability of the Cu—Mn spinel oxide during redox reaction, thereby indicating that the Cu—Mn spinel oxide can be employed in a plurality of TWC applications.

    摘要翻译： 本公开描述了包含用于TWC和储氧材料应用的具有稳定的还原/氧化（氧化还原）可逆性的二元Cu-Mn尖晶石氧化物粉末的零铂族金属（ZPGM）材料组合物。 在氧化还原环境下分析Cu-Mn尖晶石氧化物粉末的行为，以确定氧化还原可逆性，催化活性和尖晶石结构稳定性。 使用X射线衍射分析，氢气温度程序化还原技术，透射电子显微镜分析和X射线光电子能谱分析进行尖晶石粉末的表征。 测试结果证实氧化还原反应期间Cu-Mn尖晶石氧化物的相和结构稳定性，从而表明Cu-Mn尖晶石氧化物可用于多个TWC应用中。

    Methods for selecting and applying a layer of Cu—Mn spinel phase to ZPGM catalyst systems for TWC application
    5.
    发明授权
    Methods for selecting and applying a layer of Cu—Mn spinel phase to ZPGM catalyst systems for TWC application 有权
    选择和应用一层Cu-Mn尖晶石相到ZPGM催化剂体系用于TWC应用的方法

    公开(公告)号：US09433930B2

    公开(公告)日：2016-09-06

    申请号：US14090809

    申请日：2013-11-26

    申请人： Clean Diesel Technologies, Inc.

    发明人： Zahra Nazarpoor

    IPC分类号： B01J21/04 ,  B01J23/24 ,  B01J23/72 ,  B01J23/889 ,  B01J37/02 ,  B01J23/00 ,  B01D53/94 ,  B01J37/03

    CPC分类号： B01J23/8892 ,  B01D53/945 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/209 ,  B01D2255/40 ,  B01D2255/65 ,  B01J23/005 ,  B01J37/0244 ,  B01J37/035 ,  B01J37/038 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/48 ,  B01J2523/56 ,  B01J2523/72 ,  B01J2523/31

    摘要： The present disclosure relates to selecting the layer of applying ZPGM active phase in washcoat, or applying ZPGM active phase in overcoat, for achieving optimized performance and enhanced thermal stability. Applying ZPGM active phase catalyst in overcoat shows improvements compare to applying ZPGM active phase in washcoat. The selected active phase material may include a chemical composition that is substantially free from PGM, including a formulation of stoichiometric Cu—Mn spinel structure active phase deposited on Niobium-Zirconium support oxide. The selected active phase layer applied in overcoat may include a washcoat of alumina coated on a suitable ceramic substrate. The disclosed active phase may be applied in overcoat to maximize efficiency of catalyst systems, which may exhibit enhanced catalytic activity properties, which may stable after aging and under steady state and oscillating condition, showing optimized performance purifying gases in TWC condition.

    摘要翻译： 本公开涉及选择在修补基面涂层中施加ZPGM活性相的层，或在外涂层中施加ZPGM活性相，以实现优化的性能和增强的热稳定性。 与在涂层中应用ZPGM活性相相比，在外涂层中使用ZPGM活性相催化剂显示出改进。 选择的活性相材料可以包括基本上不含PGM的化学组合物，包括沉积在铌 - 锆担载氧化物上的化学计量的Cu-Mn尖晶石结构活性相的配方。 施加在外涂层中的所选活性相层可以包括涂覆在合适的陶瓷基底上的氧化铝的修补基面涂层。 所公开的活性相可以施加在外涂层中以使催化剂体系的效率最大化，其可以表现出增强的催化活性性质，其在老化和稳定状态和振荡条件之后可以稳定，在TWC条件下显示优化的性能净化气体。

    Systems and Methods for Zero-PGM Binary Catalyst Having Cu, Mn, and Fe For TWC Applications
    8.
    发明申请
    Systems and Methods for Zero-PGM Binary Catalyst Having Cu, Mn, and Fe For TWC Applications 审中-公开
    用于TWC应用的具有Cu，Mn和Fe的零PGM二元催化剂的系统和方法

    公开(公告)号：US20160082422A1

    公开(公告)日：2016-03-24

    申请号：US14960837

    申请日：2015-12-07

    申请人： Zahra Nazarpoor ,  Stephen J. Golden

    发明人： Zahra Nazarpoor ,  Stephen J. Golden

    IPC分类号： B01J23/889 ,  B01J23/745

    CPC分类号： B01J23/8892 ,  B01D53/945 ,  B01D2255/2066 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/65 ,  B01J23/005 ,  B01J23/745 ,  Y02T10/22 ,  Y10S502/52712

    摘要： Variations of bulk powder catalyst material including Cu—Mn, Cu—Fe, and Fe—Mn spinel systems for ZPGM TWC applications are disclosed. The disclosed bulk powder catalyst samples include stoichiometric and non-stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinels on Pr6O11—ZrO2 support oxide, prepared using incipient wetness method. Activity measurements under isothermal steady state sweep test condition may be performed under rich to lean condition. Catalytic activity of samples may be compared to analyze the influence that different binary spinel system bulk powders may have on TWC performance of ZPGM materials for a plurality of TWC applications. Stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinel systems exhibit higher catalytic activity than non-stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinel systems. The influence of prepared Cu—Mn, Cu—Fe, and Fe—Mn spinel systems may lead into cost effective manufacturing solutions for ZPGM TWC systems.

    摘要翻译： 公开了用于ZPGM TWC应用的包括Cu-Mn，Cu-Fe和Fe-Mn尖晶石体系的散装粉末催化剂材料的变化。 公开的本体粉末催化剂样品包括使用初始湿度法制备的Pr6O11-ZrO2载体氧化物上的化学计量和非化学计量的Cu-Mn，Cu-Fe和Fe-Mn尖晶石。 在等温稳态扫描试验条件下的活性测定可以在浓缩条件下进行。 可以比较样品的催化活性，分析不同二元尖晶石体系粉末对多种TWC应用的ZPGM材料对TWC性能的影响。 化学计量Cu-Mn，Cu-Fe和Fe-Mn尖晶石体系表现出比非化学计量的Cu-Mn，Cu-Fe和Fe-Mn尖晶石体系更高的催化活性。 制备的Cu-Mn，Cu-Fe和Fe-Mn尖晶石系统的影响可能导致ZPGM TWC系统的成本有效的制造解决方案。

    Effect of Support Oxides on Optimal Performance and Stability of ZPGM Catalyst Systems
    10.
    发明申请
    Effect of Support Oxides on Optimal Performance and Stability of ZPGM Catalyst Systems 审中-公开
    支持氧化物对ZPGM催化剂体系的最佳性能和稳定性的影响

    公开(公告)号：US20150148222A1

    公开(公告)日：2015-05-28

    申请号：US14090835

    申请日：2013-11-26

    申请人： Zahra Nazarpoor

    发明人： Zahra Nazarpoor

    IPC分类号： B01J23/889

    CPC分类号： B01J23/8892 ,  B01D53/945 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/40 ,  B01D2255/405 ,  B01D2255/65 ,  B01D2258/014 ,  B01J23/005 ,  B01J37/0244 ,  B01J37/035 ,  B01J37/038 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/17 ,  B01J2523/31 ,  B01J2523/48 ,  B01J2523/56 ,  B01J2523/72

    摘要： The present disclosure relates to selecting support oxide for ZPGM catalyst for optimal performance under TWC condition, for achieving enhanced catalyst activity, and improved thermal stability during aging. The selected active phase material may include a chemical composition that is substantially free from PGM, including a formulation of stoichiometric Cu—Mn spinel structure active phase with Niobium-Zirconium support oxide, which may include a washcoat of pure alumina coated on a suitable ceramic substrate. The disclosed Cu—Mn spinel structure active phase with Niobium-Zirconium support oxide may be applied in overcoat to maximize efficiency of ZPGM catalyst systems, which may exhibit enhanced catalytic activity properties that may increase with temperature, showing optimized performance purifying gases in TWC condition, and enhanced stability during aging.

    摘要翻译： 本公开涉及在TWC条件下选择ZPGM催化剂的支撑氧化物以获得最佳性能，以实现增强的催化剂活性和改善老化期间的热稳定性。 选择的活性相材料可以包括基本上不含PGM的化学组合物，包括具有铌 - 锆担载氧化物的化学计量的Cu-Mn尖晶石结构活性相的配方，其可以包括涂覆在合适的陶瓷衬底上的纯氧化铝的修补基面涂层 。 所公开的具有铌 - 锆担载氧化物的Cu-Mn尖晶石结构活性相可以涂覆在外涂层中以使ZPGM催化剂体系的效率最大化，这可以表现出随温度升高的催化活性性能，显示在TWC条件下优化的性能净化气体， 并增强老化过程中的稳定性。