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助剂ce
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  auxiliary ce
     The results show that the catalyst produced by co-precipitation mixed with auxiliary is of higher activity than that by impregnation. The catalyst prepared by speedily activated in air had higher activity, and the activity of catalytic mixed with auxiliary Ce is higher than that of mixed with auxiliary K, Mg and ZrO_2.
     结果表明,以共沉淀法掺杂助剂所得催化剂较浸渍法助剂修饰所得催化剂活性更高,以快速氧化活化所得催化剂活性较高,而助剂Ce掺杂的催化剂比助剂K,Mg,ZrO2掺杂的催化剂具有较高的催化活性.
短句来源
  adding ce
     The results show that the activity and selectivity for CO oxidation on nanosized oxides supported CuO catalysts by adding Ce are much higher than that by adding K,Mg,Zn and Zr.
     结果表明,助剂Ce掺杂的纳米A l2O3负载CuO对CO的氧化活性、选择性明显优于助剂K,M g,Zn,Zr掺杂的催化剂.
短句来源
  “助剂ce”译为未确定词的双语例句
     The result of this experiment indicate: when the controlled temperature is 800℃, the space velocity is 5×105h-1, catalyze property is good if you put 1% Ce and convention rate of methane reaches 94.8%, selectivity of H_2 and Co are 99.5% and 96.2% respectively.
     实验结果表明:在外控温度800℃,空速5×105h-1条件下,当助剂Ce 的添加量为1%时具有很好的催化性能,甲烷转化率达94.8%,H_2,CO 选择性分别为99.5%和96.2%。
短句来源
     The catalyst Ni Ce/Al 2O 3 have good activity and stability in reaction of CH 4,CO 2 and O 2 to synthesis gas,based on which others additives were studied.
     在甲烷、二氧化碳与氧气制合成气的反应中 ,使用添加助剂Ce的Ni/Al2 O3 催化剂对反应有较好的活性与稳定性。
短句来源
     BET and XPS measurements revealed that the change of pore distribution, the partial loss of Ni and Ce species over the surface of Ni-Ce/Al 2O 3 after using for a long time in this reaction system are responsible for the decrease of the catalyst activity.
     BET ,XPS表征显示 ,经过较长时间反应的Ni Ce/Al2 O3 催化剂 ,其孔径分布的变化以及活性物种Ni和助剂Ce向体相的迁移或流失 ,有可能是造成该类催化剂活性逐步下降的主要原因
短句来源
     On the other hand,the addition of Ce improved the reducibility and Mo5+/Mo6+ratio,furthermore,it caused a stronger adsorption of propane on the catalysts. The addition of Ce to the catalysts modified the properties by the formation of redox cycle "Ce3++Mo6+Ce4++Mo5+"in the catalysts. Such modification determined the catalytic performance of the catalysts in selective oxidation of propane to acrolein.
     结果表明,助剂Ce改善了催化剂的可还原性,并调变了催化剂中Mo5+/Mo6+比例,有利于催化剂上丙烷选择氧化生成丙烯醛,这可能归因于催化剂中形成Ce3++Mo6+Ce4++Mo5+氧化-还原循环的缘故.
短句来源
     REFORMING OF BIOMASS SYNGAS OVER NiO-MgO CATALYSTS WITH ADDITION OF CE
     添加助剂Ce的NiO-MgO催化剂重整生物质燃气的特性研究
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  相似匹配句对
     The coefficients of skewness(Cs) and kurtosis(Ce) have the feature of Cs<0, Ce?
     Ce。 3。
短句来源
     Windows CE.
     Windows CE.
短句来源
     Effects of Ce,Mo Promoters and Dispersion on the Properties of VPO Catalysts
     Ce、Mo助剂和分散剂对VPO催化剂物性的影响
短句来源
     Ce0.1 Ag0.3Mo0.5P0.3Oy catalyst exhibited the highest selectivity and yield of acrolein in this reaction.
     其中添加助剂Ce的Ag-Mo-P-O催化性能较好.
短句来源
     Evolution of detergent builders
     洗涤剂助剂的演变
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  promoter ce
The embryo uses Promoter C1 and a previously undescribed promoter, called Promoter Ce, to drive neuronal expression.
      
  adding ce
However, Ce microalloying can not still essentially decrease the stress concentration sensitivity of the alloy 2090 sheets because the ductility can not be improved to a greater degree only by adding Ce element.
      


The authors analyzed the distribution of compositions in the HG-1 ammonia catalyst promoted by RE oxide (developed successfully by the authors) with EPM. The authors adopted the results to explain the mechanism of additives effect on the activity of the catalyst and resistance to poisons, and to explain why the catalyst had a longer lifetime than the others.

本文着重探讨HG-1型稀土氨合成催化剂的表面结构和元素分布.发现在催化剂晶粒的基体中和边界上,主催化剂Fe和助剂Ce、K等的分布不均匀;在未经使用(未还原)催化剂中,Ce、K几乎都富集于边界上,使用过程中,助剂由边界向基体扩散,但Ce的扩散速度明显低于K;工业使用一年的HG-1型催化剂中未发现有元素硫的存在.上述结果很好地解释了稀土元素Ce对氨合成催化剂的活性的促进作用、抗衰老作用以及抗毒作用.

Bi - Mo complex oxide catalgsts have been prepared by sol - gel method at lower temper-ature. Structure and catalytic properties of Bi - Mo comples otide have been studied by using DTA - TGBET、XRD and oxidation of toluene reaction test. It is shawn that the Bi/Mo ratio of O~0 .7can produceMoO3, and Bi2Mo3, phases; The Bi/M030. 8 can pdsce Bi,MoOe and Bi`Mo0 phases. For hle se-lective okidation of toluene to benzaldhyde, the higher selechvity and yield 0f QHs CH0 is the Bi/Mo= 0. 67 0f Bi - Mo comPlex oxide catalyst....

Bi - Mo complex oxide catalgsts have been prepared by sol - gel method at lower temper-ature. Structure and catalytic properties of Bi - Mo comples otide have been studied by using DTA - TGBET、XRD and oxidation of toluene reaction test. It is shawn that the Bi/Mo ratio of O~0 .7can produceMoO3, and Bi2Mo3, phases; The Bi/M030. 8 can pdsce Bi,MoOe and Bi`Mo0 phases. For hle se-lective okidation of toluene to benzaldhyde, the higher selechvity and yield 0f QHs CH0 is the Bi/Mo= 0. 67 0f Bi - Mo comPlex oxide catalyst.

采用溶肽-凝胶法(sol-gel)制备出系列Bi-Mo复合氧化物催化剂.利用PTA-TG、XRD、BET等测试手段,考察了不同的Bi/Mo比,加助剂Ce等制备条件对Mi-Mo复合氧化物的结晶状态、晶相组成、比表面的影响,并研究了该催化剂用于甲苯选择氧化物的催化性能.

Efffect of promoters

用程序升温(TPR、TPO)和活性评价等方法研究助剂(MgO,CaO,La2O3和Ce2O3)对CO2/CH4重整制合成气Ni基催化剂性能的影响。结果表明MgO和Ce2O3能较多地提高CH4和CO2的转化率,助剂Ce2O3能最有效地抑制催化剂的积炭

 
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