PERFORMANCE IMPROVEMENT OF COPPER AND MANGANESE CONTAINING TERNARY SPINEL AS NOBLE METAL FREE THREE WAY CATALYSTS
    7.
    发明申请
    PERFORMANCE IMPROVEMENT OF COPPER AND MANGANESE CONTAINING TERNARY SPINEL AS NOBLE METAL FREE THREE WAY CATALYSTS 审中-公开
    铜和锰的性能改进,含有三次金属,无金属三次催化剂

    公开(公告)号:WO2016203371A1

    公开(公告)日:2016-12-22

    申请号:PCT/IB2016/053506

    申请日:2016-06-14

    摘要: Methods for improving the stoichiometric catalytic conversion of zero-platinum group metals (ZPGM; platinum group metal free) catalyst materials including ternary spinel oxides are disclosed. The ZPGM catalyst materials comprise Cu-Mn-X ternary spinel oxides. The Cu-Mn-X ternary spinel oxides are produced by implementing a partial substitution within the B-site cation of a CuMn 2 04 spinel employing a general formulation CuMn 2-y X y 04, in which y is a variable representing different molar ratios and X is a cation that is not easily reducible. yis a number from 0.01 to 1.99. X is selected from the group consisting of nickel, titanium, aluminum, magnesium, cobalt, barium, lanthanum, cadmium, tin, yttrium, zirconium, and combinations thereof. The stoichiometry conversion of the ZPGM catalyst materials are improved by cation (X) doping, by calcining the ternary spinels at suitable temperatures, by varying the spinel loadings on support oxide, and by improving the oxygen storage capacity. Test results indicate that the ZPGM catalyst materials with improved stoichiometric conversion performance are obtained by improving concentration of Cu +1 , the purity of spinel phase, the loading and dispersion of the spinel, and improving the OSC of the spinel.

    摘要翻译: 公开了提高包括三元尖晶石氧化物的零铂族金属(ZPGM;不含铂族金属)催化剂材料的化学计量催化转化的方法。 ZPGM催化剂材料包括Cu-Mn-X三元尖晶石氧化物。 Cu-Mn-X三元尖晶石氧化物是通过使用一般配方CuMn2-yXy04在CuMn204尖晶石的B位阳离子内进行部分取代制备的,其中y是表示不同摩尔比的变量,X是阳离子 不容易缩减。 是从0.01到1.99的数字。 X选自镍,钛,铝,镁,钴,钡,镧,镉,锡,钇,锆及其组合。 通过阳离子(X)掺杂,通过在合适的温度下煅烧三元尖晶石,通过改变载体氧化物上的尖晶石负载以及提高储氧能力,改善了ZPGM催化剂材料的化学计量转换。 试验结果表明,提高化学计量转换性能的ZPGM催化剂材料是通过改善Cu + 1的浓度,尖晶石相的纯度,尖晶石的负载和分散以及改善尖晶石的OSC来获得的。