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dispersion capacity
    DISPERSION STATE AND DISPERSION CAPACITY OF AlCl 3 AND FeCl 3 ON γ Al 2O 3 SURFACE
    易潮解化合物AlCl_3和FeCl_3在载体表面的分散状态及分散量
    Dispersion Capacity of α-Fe_2O_3 on Mesoporous Molecular sieve MCM-41
    α一Fe_2O_3在介孔分子筛MCM一41上的最大分散量
    The specific surface and pore volumes of MoO3/γ-Al2O3 systems determined also support the close-packed monolayer model, because the specific surfaces or pore volumes per gram r-Al2O3 keep on almost no change as the amounts of MoO3 in MoO3/γ-Al2O3 samples exceed the monolayer dispersion capacity (see Fig. 6-8).
    这样可以通过X光衍射测定MoO_3在每克γ-Al_2O_3上的最大分散量而得到γ-Al_2O_3的比表面。
    when the NaCl con- tent is higher than the monolayer dispersion capacity,NaCl crystals appear, and the dispersion and thermal stability of Pt decrease with increasing NaCl content.
    在 NaCl 含量未达到最大分散量之前 Pt 的分散度及热稳定性随 NaCl 含量的增加而增加,而当 NaCl 含量超过最大分散量之后,NaCl 晶相存在,Pt 的分散度和热稳定性反而降低.
    The results show that PtO_2 can disperse as a monolayer onto the surface of γ-Al_2O_3. A monolayer dispersion capacity (threshold) of 0.0246g PtO_2/100m~2 γ-Al_2O_3 surface is observed. When the PtO_2 content in a PtO_2/γ-Al_2O_3 sample exceeds the threshold, residual PrO_2 phase appears.
    结果表明,PtO_2可在载体上单层分散,其最大单层分散量(阈值)为0.0246g PtO_2/100m~2γ-Al_2O_3,当PtO_2量超过阈值时,出现剩余PtO_2物相。
    XRD,TPR and catalytic performance evaluation were used to study influence of promotors on the maximum dispersion capacity and catalytic performance of the supported nickel catalysts for CO 2-reforming of CH 4 to syngas.
    应用XRD、TPR和催化活性评价手段 ,考察了助剂对CH4 与CO2 重整制合成气的负载型Ni催化剂的最大分散量和其催化性能的影响。
    when Fe(NO3)3·9H2O was used as raw material,the dispersion capacity is 0.58g α-Fe2O3/g MCM-41;
    当以硝酸铁为铁源时 ,α -Fe2 O3 最大分散量为 0 .5 8gα -Fe2 O3 /gMCM - 41;
    XRD,TPR and catalytic performance evaluation were used to study influence of promotors on the maximum dispersion capacity and catalytic performance of supported nickel catalysts for CO 2-reforming of CH 4 to syngas.
    应用XRD、TPR和催化活性评价手段 ,考察了助剂对CH4 与CO2 重整制合成气的负载型Ni催化剂的最大分散量和其催化性能的影响 .
    iO dispersion on NaY surface has been investigated by using XRD and iR spectroscopy. The results show that the NiO dispersion capacity can be enhanced through Increasing the number of times of impregnation, but can not be changed by the calcination temperature. The utmost dispersion capacity is about 25%.
    用XRD和IR对NiO在NaY分子筛上的分散进行了研究.结果表明,采用多次侵渍能提高NiO的分散量,而焙烧温度的改变对此没有明显的影响.得到NiO的最大分散量为25%.同时发现,NiO分散相与NaY之间存在着较强的相互作用,使分子筛的热稳定性降低;
    The effect of various factors on the dispersion of ZnO on NaY surface has been studied by XRD and Raman spectroscopy. The utmost dispersion capacity of ZnO has been obtained through prolonged drying and by increasing the times of impregnation (0.46gZnO/gNaY),which is reasonably higher than the value of reference (0.22gZnO/gNaY).
    利用XRD、Raman光谱分析了影响ZnO在NaY表面分散的各种因素,发现延长干燥时间和多次浸渍能促进ZnO的分散,测得ZnO的最大分散量为0.46g/gNaY,已远大于文献结果。
    The experimental result shows that the maximum dispersion capacity of NiO on the γ-Al_2O_3 surface increases to some degree with the addition of promotors of MgO, La_2O_3, the promotors had influence on the catalytic performance of supported—Ni catalysts, MgO and La_2O_3 added into NiO/γ-Al_2O_3 catalyst could markedly improve its reforming activity as well as its resistance to carbon deposition, with some contribution from type and additional order of promotors.
    实验结果表明,NiO在Υ-Al_2O_3表面上最大分散量随MgO、La_2O_3助剂的添加不同程度地增大,助剂能影响负载型Ni催化剂的催化性能,MgO、La_2O_3的添加对改善Ni催化剂的重整活性和抗积炭性能有明显效果,并与助剂的种类、添加次序有关。
 

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