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.
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.
许多催化剂的活性组分可在载体表面自发分散。
The active component(e. g. salts and oxides of transition metals)of many catalysts will disperse spontaneously onto the surface of the carrier.
介绍了对非晶态合金催化剂的非晶结构、表面形态、活性中心等进行表征和定性的XRD、EX AFS、DSC、SEM和XPS等方法。
The XRD, EXAFS, DSC, SEM and XPS methods for determining and characterizing amorphous structure, surface morphology and active center of the catalysts were introduced.
稀土对催化活性的促进作用证明是由于稀土可以提高催化剂的表面酸性。
The facilitation of rare earth for catalytic activity was proved to be the cause of that the rare earth could increase the surface acidity of catalysts.
纳米粒子表面活性中心多，为它作催化剂提供了必要条件。
Nano-particles on the surface active center, it provided a catalyst for the necessary conditions.
应用此法和TPD/MS实验技术同时测定了一些钒系催化剂的表面活性氧的活性和供氧数目。
Theactivity and the number of surface oxygen of a series of vanadium oxide catalysts were studied by TPD equilibrium and TPD/MS technique.
通过实验发现，加氢催化剂的活性和产物收率与催化剂中铜晶粒大小及表面积有着直接的关系。
Experiments find activity of hydrogenation catalysts and product yields have direct relation with the copper crystalline size and surface area.
考察了反应条件对酯化反应的影响，催化剂的表面总酸度与酯化活性的关系。
The effects of reaction conditions and catalysts surface acidity on esterification reaction were investigated.
通过对阳极扩散层和催化剂层的疏水处理，降低了阳极产生的CO2导致的催化活性比表面积损失，有效地提高了电池性能。
The decrease of active surface area in the anode caused by CO2 accumulation is reduced through treating the diffusion layer and catalyst layer with PTFE, resulting in increased DMFC performance.
具有高纯度、高比表面、大孔容及合理孔分布的活性炭载体有利于活性组分有效均匀的分散，制备出高活性的氨合成钌催化剂。
The high purity, high surface area, large pore volume and proper pore structure of active carbon as a support for ruthenium catalyst usually lead to high catalytic activity for ammonia synthesis.
由于纳米材料催化剂具有独特的晶体结构及表面特性，因而其催化活性和选择性大大高于传统催化剂。
Nanometer catalyst material had peculiar crystallographic structure and surface property, thus its catalytic activity and selectivity were too much greater than these of traditional catalyst.
考察了加氢精制催化剂的孔容和比表面对其活性的影响。
The effect of the pore volume and surface area of hydrotreating catalyst on its activity was studied.
自发单层分散原理认为，许多负载型催化剂的活性组分可在载体表面自发分散。
Principles of the spontaneous monolayer distribution holds that the active component of many supported catalysts will disperse spontaneously onto the surface of the carrier.
综述了碳纳米管的性质及其在催化剂、塑料、橡胶、陶瓷、涂料、表面活性剂等领域中的应用研究情况。
The properties of carbon nanotubes and its applications in the fine chemical field such as catalyst and additives for plastics, rubber, ceramics and coatings are mainly introduced.
活性炭是一种应用广泛的吸附催化剂，其性能取决于它的孔隙结构和表面化学性质。
Activated carbon (AC) is used widely catalyst and adsorption material, and its capabilities are related to the pore structure and the surface chemical properties.
催化剂的活性中心位于胶粒表面，催化剂颗粒是无定形的。
The active center lay on the surface of the colloidal particle. The particles were amorphous.
指出选择适用的表面活性剂、催化剂、助催化剂以及工艺开发是胶团催化技术的关键。
It was indicated that the selection of surfactants, catalysts and cocatalysts as well as the technological development are the key points.
催化剂的乙炔加氢稳定性测试结果表明，聚合物在非晶态合金表面沉积，导致催化剂活性下降。
The results of durability experiments of acetylene hydrogenation showed that the deposit of oligomer on the surface of catalysts leaded to catalysts deactivation.
摘要：活性成份中一般含有加快结晶形成的催化剂和向砼内部渗透的表面活性剂。
Abstract: Active ingredients in general contain accelerating crystallization formation catalyst and to the concrete internal penetration of surfactant.
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.
此外，本文结合催化剂的组成、结构和表面形貌的表征对催化剂的催化活性和失活行为进行了讨论。
In addition, on the basis of the information obtained by the characterization of catalyst composition, structure and morphology, activity and deactivation behavior of the catalyst were discussed.
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.
结果表明，催化剂失活的主要原因是糠醛加氢过程中生成的高聚物附着在催化剂的活性表面。
The results showed that adhesion of higher polymers formed during the hydrogenation process onto surface of the catalyst was the main cause for deactivation of the catalyst.
介绍了用CO作吸附质，在室温下脉冲吸附测定铜催化剂中活性铜表面积的方法。
A determination method of active surface areas of copper-containing catalysts by pulse adsorption at an ambient temperature with co as adsorbate is described in the present paper.
当紫外—可见光谱证明表面活性剂与金属催化剂有明显络合作用时，表面活性剂的加入便会显著改变振荡反应的t。
The addition of the surfactant can change considerably the oscillating lasting time when there is an obvious coordination between the surfactant and the metal catalyst.
用原子吸收、碘价分析、活性和BET比表面积测定及XRD、TG -DTA、IR等手段，对催化剂和产物进行了物理和化学表征。
Physical and chemical properties of the catalysts were studied using activity measurement, BET surface area measurement, XRD, TG DTA and IR spectra etc.
运用XPS分析方法研究一系列复合氧化物催化剂中毒前后硫在其表面的各种形态及催化剂活性组分中毒前后的组成、价态、化学机理及其变化。
By using XPS, before and after the intoxication of mixed oxide catalysts, the various appearance and the composition. valence and chemical mechanism of the active component of catalysts were studied.
运用XPS分析方法研究一系列复合氧化物催化剂中毒前后硫在其表面的各种形态及催化剂活性组分中毒前后的组成、价态、化学机理及其变化。
By using XPS, before and after the intoxication of mixed oxide catalysts, the various appearance and the composition. valence and chemical mechanism of the active component of catalysts were studied.
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