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    Zero-PGM TWC with High Redox Reversibility
    34.
    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。

    Cerium-Cobalt Spinel System as ZPGM Composition for DOC Applications
    36.
    发明申请
    Cerium-Cobalt Spinel System as ZPGM Composition for DOC Applications 审中-公开
    铈钴尖晶石系统作为DOC应用的ZPGM组合物

    公开(公告)号：US20160263561A1

    公开(公告)日：2016-09-15

    申请号：US14657833

    申请日：2015-03-13

    申请人： Clean Diesel Technologies, Inc.

    发明人： Zahra Nazarpoor ,  Stephen J. Golden

    IPC分类号： B01J23/83 ,  B01J35/02 ,  B01J23/00

    CPC分类号： B01J23/83 ,  B01D53/945 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/20746 ,  B01D2255/20761 ,  B01D2255/405 ,  B01D2255/9207 ,  B01J23/005 ,  B01J23/894 ,  B01J35/02 ,  Y02T10/22

    摘要： Variations of ZPGM catalyst material compositions including cerium-cobalt spinel oxide systems for ZPGM DOC applications are disclosed. The disclosed ZPGM catalyst compositions include CexCo3−xO4 spinel and effect of adding copper to Ce-Co as CuxCe1−xCo2O4 spinel systems supported on doped zirconia support oxide, which are produced by the incipient wetness (IW) methodology. ZPGM catalyst compositions are subjected to BET-surface area and XRD analyses to determine the thermal stability and spinel phase formation of supported spinal systems, respectively. DOC performance of ZPGM catalyst compositions is determined under steady state DOC light off test condition to verify/compare oxidation activity of disclosed spinel compositions, desirable and suitable for ZPGM catalyst materials in DOC applications.

    摘要翻译： 公开了ZPGM催化剂材料组合物的变化，包括用于ZPGM DOC应用的铈 - 钴尖晶石氧化物体系。 所公开的ZPGM催化剂组合物包括CexCo3-xO4尖晶石以及以Ce-Co作为CuxCe1-xCo2O4尖晶石系统添加铜的作用，其由掺杂的氧化锆载体氧化物负载，其由初始湿度（IW）方法制备。 对ZPGM催化剂组合物进行BET表面积和XRD分析，分别确定支撑脊柱系统的热稳定性和尖晶石相形成。 在稳态DOC光离去试验条件下测定ZPGM催化剂组合物的DOC性能，以验证/比较所公开的尖晶石组合物的氧化活性，在DOC应用中是合适的并适用于ZPGM催化剂材料。

    Methods for selecting and applying a layer of Cu—Mn spinel phase to ZPGM catalyst systems for TWC application
    37.
    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。