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.
由BET方法发现,以异丁醇为润湿剂对催化剂表面积影响较小。
BET shows that isobutanol as the liquid medium causes less change to the surface area of catalysts.
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.
这些极小的小孔使分布稀薄的催化剂保持在原位上,并且能留出有效分解这种燃料所需的尽量大的表面积。
The minuscule pores keep the thinly spread catalyst in place and create the large surface area needed to break down the fuel effectively.
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.
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.
BET比表面表明,适宜的硅溶胶浓度可以使催化剂具有较大的比表面积,但制备方法对比表面积影响不大。
It was shown by BET surface area that the suitable concentration of silica sol could make the catalysts have bigger surface areas, but preparation method had little influence on surface area.
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.
研究结果表明,催化剂的比表面积和孔结构是在还原脱氧过程中产生的,还原前的催化剂可视为无孔隙的致密固体。
The results show that the catalyst specific area and its pore structure is generated during the reduction process and the catalyst before reduction can be regarded as a compact solid with little pore.
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.
实验结果表明,影响顺酐收率的主要因素是催化剂的相组成及钒的氧化态,而不是催化剂的比表面积。
The main factor influencing the yield of maleic anhydride is the phase composition or oxidation state of vanadium in the catalyst, and is not the BET surface area of the catalyst.
比表面积随催化剂制备温度和制备时间的增加而减小。
The specific surface area of catalyst decrease with preparing temperature increasing.
得到的催化剂具有高比表面积、孔容和高零价铁含量,铁均匀分散在炭的表面并具有良好的稳定性。
The obtained catalyst has high specific surface area, pore volume and content of the zero-valent iron; and the iron is uniformly distributed on the surface of carbon and has favorable stability.
通过XRD及BET表面积测定表征催化剂。
生物质气化粗燃气流态化重整,避免了燃气中颗粒物对重整器的堵塞,促进了催化剂的还原,并抑制了催化剂的表面积碳。
The fluidization of catalyst in the reformer had a role of avoiding the blockage of reformer, promoting the catalyst reduction and suppressing the carbon deposition on the surface of catalyst.
非金属矿蒙脱石因其大而规整的层架结构和高比表面积等特性使其作为催化材料及催化剂的载体已经受到研究者的高度重视。
Nonmetal mineral montmorillonite as the carrier of photocatalyst has been attached great importance by scholars because of its big regular channel structure as well as high specific surface area.
所述多层薄膜提供增大的表面积,并在催化活性与可用来支 承催化剂颗粒的表面面积相关联的装置中尤其有用。
The multilayer films provide increased surface area and are particularly useful in devices where catalyst activity is related to the surface area available to support catalyst particles.
因为纤维催化剂比粒状催化剂的外表面积大得多,而直径却小得多,因而予计对扩散控制的快速表面反应是有利的。
Because of its much larger external surface area and much smaller pore diameter than granular carriers, it is expected to benefit diffusion-controlled fast surface reactions.
预硫化催化剂的表征结果表明,催化剂硫化前后孔容和比表面积变化不大。
The characterization of pre-curing catalyst show that the pore volume and specific surface area had little change after vulcanization.
热力学研究表明,在573K到1273 K的温度范围内,催化剂的表面积碳是不可避免的。
Thermodynamics analysis indicated that the carbon deposition is inevitable within the temperature range from 573 K to 1273 K.
采用BET、XRD等测试手段,考察了由四种不同方法和条件下制备的VPO催化剂的比表面积和晶体结构。
VPO catalysts were prepared by Four methods. BET and XRD techniques were used to investigate the surface area and phase composition of VPO catalysts.
通过TEM,XRD,TGA及表面积与孔径测定仪等测试手段对该负载型催化剂的物相、粒子的形貌和粒度进行了表征。
The nanoparticle size, and phase were characterized by means of TEM, XRD, TGA, surface area and pore diameter measurements.
本工作考察了分子筛裂化催化剂水蒸汽减活与表面酸度、表面积,和相对结晶度的关系。
The relation between steam deactivation and surface properties of zeolite - containing cracking catalyst was investigated.
碳纳米管修饰电极不仅可以提高电子传递速度,而且由于其比表面积大能够作为一种优良的催化剂载体。
Carbon nanotubes not only have the ability to promote electron transfer reaction when used as electrode modification material, but also is promising as catalyst carrier due to their high surface area.
较长的纳米结构化支承元件提供了更大的支承催化剂材料的表面积,从而允许在所述层上填塞更多的催化剂。
Longer nanostructured support elements provide increased surface area for supporting catalyst material, thus allowing higher catalyst loading across the layer.
结果表明,适当高的焙烧温度降低了催化剂的比表面积和表面酸性,提高了催化剂的稳定性。
The results showed that the properly high temperature could reduce the specific surface area and surface activity, at the same time increased the stability of the catalysts.
结果表明,适当高的焙烧温度降低了催化剂的比表面积和表面酸性,提高了催化剂的稳定性。
The results showed that the properly high temperature could reduce the specific surface area and surface activity, at the same time increased the stability of the catalysts.
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