红外光谱测试结果表明,催化剂表面主要存在L酸中心。
IR pattern indicated that Lewis acid centers mainly exist on the catalyst surface.
同时分析了孔隙率和催化剂表面积对催化剂层性能的影响。
The influence of porosity and active catalyst surface area on the performance of cathode is analyzed as well.
不同的浸酸方式影响催化剂表面态,进而导致催化性能不同。
The manner of dipping acid effects on catalysts surface then cause different catalyst performance.
而在表面钝化过程中引入的氧则在催化剂表面形成氧化薄层。
The introduced oxygen in the passivated procedure reacts with the catalyst surface to form the thin oxide layer.
XPS结果表明,催化剂表面不同的硫物种对反应有不同的影响。
XPS results also indicated that different kind of metal sulfide species shows different effect on the reaction.
而过渡金属元素固溶进入催化剂可以极大的改变催化剂表面和体相的性质。
The transition metal elements with various oxidation states could be introduced into the catalysts and mortify the performance of catalysts.
结合催化剂表面天然硫酸盐的生成,对更换催化剂和高比值浸润问题进行论述。
The issues of catalyst replacement and high ratio soaks are discussed within the context of natural catalyst sulphate.
认为二氧化碳的存在能保持催化剂表面的活性状态,促进甲醇分解与合成的速率。
It corroborates that carbon dioxide can remain the active state of catalyst surface and speed the rates of methanol decomposition and methanol synthesis reactions.
乙醛和丙二醇的缩醛化反应表明丙二醇的转化率主要受催化剂表面弱酸度的影响。
The conversion of propylene glycol was mainly affected by the surface acidity of the catalyst.
运用红外表征手段对活性抑制后的催化剂表面进行研究,发现有微量的硫酸盐生成。
IR characterization showed that there was traced sulfate formed on surface of the catalyst after its activity was inhibited.
在自制的脉冲色谱吸附反应装置上建立了一种新的测定固体催化剂表面酸量的方法。
A new method for quantitatively measuring the surface acid amount of solid catalyst was set up on a self-made pulse chromatographic adsorbent reactor.
本文讨论了催化剂表面SEM图象关于多重分形生长过程的分形和多重分形特性分析。
The multifractal growth process of the SEM images of catalyst surface is studied using fractal and multifractal theory.
只有当催化剂表面的活性相浓度控制在适当的范围,催化剂才表现出最佳的催化行为。
The optimal catalytic performance could be obtained by adjusting the surface concentration of active phase within a proper range.
含噻吩原料加氢裂化生成的积炭,存在于不同孔径的孔中,在催化剂表面形成少量机械孔。
The coke deposited due to thiophene impenetrated into all the pores and some of them could form mechanical pore on catalyst surface.
利用催化燃烧技术,可使燃料和有害尾气在催化剂表面进行转化,燃烧效率达99.9%。
The catalytic combustion technology enables fuels and harmful tail gas to react with each other on the surface of the catalyst with a combustion efficiency as high as 99.9%.
尽可能提高催化剂表面强酸的 酸量是C4烯烃催化裂解制丙烯反应催化剂的研制方向。
Enhancement of the quantity of strong acid sites is the trend in development of C4-olefins cracking catalysts.
晶粒尺寸变小,氧缺陷的增加以及催化剂表面的亲水性的增强是提高光电催化降解苯酚性能的原因。
The enhanced PEC performance was attributed to the decease of the crystalline size, the increased amount of the oxygen vacancy and the enhancement of the hydrophilic performance.
利用程序升温氧化、差热分析、热重等方法考察了两种长链烷烃脱氢工业铂锡催化剂表面的积炭特征。
Carbon deposits on two Pt-Sn commercial catalysts for the dehydrogenation of paraffins have been studied by temperature programmed oxidation (TPO).
实验采用TPSR、TPD、XPS和脉冲反应等方法系统研究了镍基催化剂表面积碳的形态和特点。
The varieties and features of surface carbon depositions on nickel catalyst were extensively investigated by TPSR, TPD, XPS and pulse reaction methods.
糠醛脱羰催化剂失活的主要原因是大量积碳附着于催化剂表面使活性中心被包埋从而使催化剂失去活性。
The deactivation of the catalyst of furfural decarbonylation is mainly due to carbon deposition attached to the catalyst surface, it leads to the active site embedded, so the catalyst losed activity.
在动态过程中,催化剂表面上的吸附物种浓度随时间而变化,从而可以获得稳态流动法所不能提供的信息。
Useful information provided by steady state flow method can also be obtained from dynamic experiment as the concentration of the absorbed species on the catalyst surface changes with time.
FTIR表征表明反应后的催化剂表面有乙酸物种生成,尤其是在含水进料方式反应后的催化剂表面尤为明显。
The characterization of FTIR demonstrates that the acetic acid species is adsorbed in the catalyst surface after reaction, especially the reaction with water.
TPD和TPSR结果表明,CO占据催化剂表面部分活性位并抑制CO2的逆水煤气转换,促进了甲醇的生成。
The results of TPD and TPSR indicated that CO occupied the active sites, thus suppressed the reverse water-gas reaction of CO2 and enhanced the formation of methanol.
本文介绍了催化分解臭氧过程中,臭氧在催化剂表面的吸附形态,及各种条件下的反应下臭氧催化分解的动力学和机理。
This review provides many kinds of adsorbed ozone forms on the catalyst surface and the kinetics and mechanism of ozone decomposition reaction.
微波技术可以有效缩短制备催化剂的时间,改善催化剂表面的晶体类型,提高催化剂的活性,在催化领域具有广阔的应用前景。
The microwave technology can shorten the time of preparation of catalyst, optimize the crystallographic texture and improve the catalytic activity. It has a wide application prospect in preparation...
通过对比催化剂表面的温度振荡和产物中CO_2的浓度振荡观察到各种复杂的非稳态过程,加深了对产生化学振荡的机理认识。
Various complex unsteady states were observed by the comparison of the catalyst surface temperature oscillations with the CO_2 concentration oscillations in products.
吡啶-TPD和XRD 表征结果证明,硫化温度和硫化还原工序,会改变催化剂表面酸性和硫化态活性物种在催化剂表面的聚集状态。
Pyridine-TPD and XRD results indicated that sulfiding temperature, sulfiding and reducing processes affected acidity and agglomerate state of activity species.
TPD-MS和TPSR-MS结果表明,CO能抑制催化剂表面起逆水汽变换作用的活性位对CO2的吸附,从而提高了CO2加氢合成甲醇的选抒性。
TPD MSand TPSR MS results indicate that COcan suppress the adsorption of CO2 on the sites, which bring about the reverse water gas shift reaction and hence promote the selectivity of methanol.
多相催化剂先将盐吸附在它的表面并使它固定在那里。
The heterogeneous catalyst first attracts the salt to its surface and holds it there.
多相催化剂先将盐吸附在它的表面并使它固定在那里。
The heterogeneous catalyst first attracts the salt to its surface and holds it there.
应用推荐