Catalytic activity and BET surface area of methanol synthetic catalyst containing zirconium 氢化锆慢化反应堆系统含锆甲醇催化剂的比表面与催化活性
Characterization of the BET Surface Area, Pore Size Distribution and Intraparticle Diffusivity of Porous Materials; The pore diameter was very tiny so that it could prevent hydrotropic solution entering into the pore. 多孔粉体比表面积、孔分布和内扩散系数的表征研究二是孔隙的尺寸很小,水溶液不能渗入到孔隙,不能到达基体。
Physical and chemical characterization of the catalysts as well as some import catalysts also was carried out by means of atomic spectra, activity and BET surface area measurement, XRD and IR etc. 用原子吸收、碘价分析、BET比表面测定、XRD和IR等手段对上述催化剂以及进口催化剂进行了物理和化学表征。
The coatings surface was analyzed with BET method on Mylar substrate. It is found that coatings with higher BET surface area presents smaller ink dot size. 用聚酯薄膜作涂层基材,用BET方法对涂料进行表面积分析,结果表明:BET表面积增大时,打印墨点减小。
The grafting reaction did not destroy the framework of HY zeolite but made the BET surface area and microporous volume of the raw HY decreased. 接枝反应不破坏HY的骨架结构,修饰后HY沸石的BET比表面积和微孔体积大约降低一半。
Furthermore, the surface area and pore size distribution of the activated carbon has also been analyzed. The BET surface area is 1308.13 m~ 2/ g and total pore volume is 0.76 mL/ g. 并对活性炭进行了比表面积的测定和孔结构的分析,活性炭的比表面积为1308.13m2/g,总孔容为0.76mL/g。
Characterization of Ni/ SiO_2 catalysts prepared with the method of chemical mixing procedure was carried out by means of BET surface area measurement, XRD and TG_DTA etc. 利用BET比表面积测定、XRD、TGDTA等对化学混合法制备的Ni/SiO2单元催化剂进行了表征。
The palladium catalysts supported by honeycomb porcelain and its deactivation state have been studied by means of XRD, SEM and BET surface area measurement. 应用XRD、SEM与BET测比表面等手段对蜂窝形多孔陶瓷钯催化剂及其失活状态进行了测试。
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. 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。
The BET surface area and pore volume of the carbon activated at 800 ℃ were 1401 m2/ g and 0.79 ml/ g respectively. 800℃下所得活性炭的BET比表面积以及孔体积可分别达到1401m2/g和0.79ml/g。
The Ti-PILC catalyst with large pore volume, high interlayer spacing, high BET surface area and stable structure was obtained under the optimized preparation conditions. 在优化的条件下制得了层间距、比表面积和BJH累积脱附孔容较大且结构稳定性好的Ti-PILC催化剂。
Physical and chemical properties of the catalysts were studied using activity measurement, BET surface area measurement, XRD, TG DTA and IR spectra etc. 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。
Results showed that the binary carbonaceous titania powders with particle sizes below 10 nm are homogeneously distributed, and have higher BET surface area as well as a loose appearance structure. 研究结果表明,二元炭质/氧化钛粉末具有小于10nm的颗粒尺寸,炭和氧化钛混合均匀且具有较高的比表面和疏松的表观结构。
With the increasing of BET surface area and mesopore volume, the saturated adsorption amount increases greatly. 竹炭的BET比表面积和中孔容积越大,饱和吸附量也越大;
BET surface area, specific pore volume, pore structure and pore distribution of the catalyst were also studied, which disclosed the reason for different activity of the catalyst prepared in different conditions. 用ASAP-2000型物理吸附仪测定了催化剂的比表面积、比孔容积、孔结构和孔径分布,揭示了在不同焙烧温度下制备的Cu-Zn-Zr催化剂活性存在差异的原因。
The results indicated that adding a proper amount of the nickel promoter could decrease the carburizing temperature, increase the BET surface area, and markedly promote the DBT hydrodesulfurization activity of the molybdenum carbide catalysts. 结果表明,Ni助剂的加入降低了碳化钼催化剂所需的还原碳化温度,提高了催化剂的比表面积,并对其二苯并噻吩加氢脱硫反应活性有明显的促进作用。
It was characterized by magnetization measurements, Fe content, BET surface area and XRD diffraction analyses. 进行了磁力、Fe含量、BET表面积测量以及XRD衍射分析。
It has been found that the synthesized MCM-41 has a pore diameter of 3.2 nm, BET surface area of 904 m2/ g and pore wall thickness of 1.46 nm. 通过优化合成条件,合成出孔径3.2nm、比表面904m2/g和孔壁厚约1.46nm的MCM-41分子筛。
The BET surface area of the catalyst were measured. 通过BET实验测定了反应前后催化剂的比表面积。
The results show that the photocatalytic properties of TiO2-pillared clays mainly depend on the BET surface area and the crystallization of TiO2-pillars. 结果表明,TiO2柱撑粘土的光催化性主要受比表面积和TiO2柱体的结晶程度影响。
The method has no harm for the surface properties and pore size distribution of GAC. 78% of BET surface area and total pore volume were recovered. 方法对活性炭表面性质无损害,再生炭的BET比表面积和总孔容积可恢复到新炭的78%,孔径分布基本无变化。
A combination of technigues such as ESEM, BET surface area and X-ray diffraction were used to characterize the catalysts. 同时联合运用ESEM、BET和XRD等方法对催化剂进行了表征。
The BET surface area of the samples is another important factor which can influence photocatalytic reactivity. 另外,样品的比表面积也是影响钛酸盐光催化活性的一个重要因素。
The crystal structure, morphology and particle size of the products were characterized by XRD and SEM. The BET surface area and pore size were obtained by N2 adsorption-desorption experiment. 利用XRD、SEM等仪器表征合成产物的晶型、结构、形貌及颗粒大小并且通过N2吸附-脱附实验测试了其比表面积和孔径。
XRD, FT-IR, TG, and BET surface area were used to characterize these materials. 使用X射线衍射、红外光谱、热重和比表面积等方法对样品进行表征。
A study on the microstructure of zeolite materials of the three metal zeolite antibacterial agent has been finished under the methods of X-ray diffraction, scanning electron microscopy, BET surface area analysis, particle size analysis. 对三金属抗菌沸石和沸石原料进行气体吸附法、扫描电镜、X射线衍射仪、粒径分析仪等结构分析。
Those BN nano-carpets structures have a larger BET surface area and more structure defects. To improve the reaction temperature on the yield and crystallization quality have a promote role, but too high temperature will lead to solvent carbonization. 合成的BN纳米地毯的比表面积较大,同时有较多的结构缺陷,提高反应温度对产率和结晶质量有促进作用,但过高的温度会导致溶剂的碳化。