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- Porous TiC-Al2O3 was prepared via SHS technology. Composition,micro-structure,pore diameter distribution and element were analyzed by XRD,SEM,EDS etc. 利用自蔓延高温合成技术制备了多孔TiC-Al2O3导电陶瓷,并用XRD、SEM、EDS对样品的物相、微观结构、孔径分布及成分组成进行了分析。
- The results of N_2 adsorption/desorption showed that the samples prepared by CAC-OTD method possessed relatively large specific surface area and uniform pore diameter distribution (3.4-4.4 nm). N_2吸附和脱附结果表明;采用模板剂法制得的样品具有较大的比表面积(高达103.;5m~2·g~(-1))和较均匀的孔径分布(3
- Keywords catalyst;pore diameter distribution;physisorption;hysteresis; 催化剂;孔径分布;吸附;脱附;
- pore diameter distribution 孔径分布
- The variation of the mass loss, packing density, surface area, distribution of pore diameter, amount of ash with the cyclical numbers were researched. 考察了活性炭的失重率、堆密度、比表面、孔径分布及灰分含量随活化次数的增加而变化的情况。
- The fractal dimension of pore size distribution is determined according to the slope of the correlative line between pore volume and pore diameter in logarithmic graphics. 本文建立了土体孔隙分布的分形模型,导出用分维和进气值表示的水分特征曲线和渗透系数的理论表达式。
- With thermosetting PF resin particle size increasing,the pore size distribution of carbon membrane became broadly,the average pore diameter and gas permeation rates of carbon membrane increased. 对几种常见的粘结剂进行了筛选,当以甲基纤维素为粘结剂时,随着甲基纤维素用量的增加,微滤炭膜的孔径分布变窄,平均孔径及气体透量减小。
- The serial catalyst is characterized by large pore volume and pore diameter, high activity and stability. 该系列催化剂的主要特点是大孔容、孔径、性和稳定性高。
- The pore diameter was very tiny so that it could prevent hydrotropic solution entering into the pore. 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。
- The porosity,pore diameter and solubility of ceramsite filter made by these two methods were analyzed and compared. 研究添加成孔剂法制备的有球形宏观孔的多孔氮化硅陶瓷在不同孔隙率和孔径下的介电性能。
- BET specific surface area,pore diameter and pore volume of the synthesized molecular sieves were 197?m~2/g,about 4.80?nm and 0.23?cm~3/g,respectively. 合成的介孔氧化锆分子筛在450℃焙烧后;其BET比表面积达到197 m2/g;孔分布集中在4.;80 nm左右;孔体积为0
- Al_2O_3 nanoparticles with narrow diameter distribution were prepared by homogeneous method using urea as precipitator. 以尿素为沉淀剂,借助均相沉淀法成功地制得粒径小且分布窄的纳米氧化铝。
- The most probable pore diameter of an unsupported composite membrane was about 4.3nm as characterized by nitrogen isothermal absorption measurement. 用等温氮气吸附实验测定了非担载膜的孔径大小和分布;最可几孔径约为4.;3nm。
- Drop diameter distribution and mass transfer coefficient are briefly introduced. 对滴径分布和传质系数也作了简单介绍。
- The Oolong tea juice was ultra-filtrated by using the plate-frame module and choosing three kinds of CA membrane with three pore diameter . 结果表明,超滤可以有效澄清乌龙茶汁,在合适的工艺参数下菜汁有效风味成分保留率高,能截留大部分易发生沉淀的高分子物质,感官品质佳。
- In addition, several analytical methods frequently used for the calculation of surface area, pore diameter and microporosity have also been introduced. 本文针对气体吸脱附分析技术之原理与测量方式进行介绍，另外亦阐明几种常用以计算孔面积、孔径大小与微孔量等孔洞特性之数据分析方法。
- Protein-loaded microspheres showed good sphericity and narrow diameter distribution, the encapsulation efficiency reached 95%. 微球球形度优良，粒径分布窄，蛋白质包封率达到95%25。
- It is found that total pore volume and average pore diameter of the carbons increase with increase in the R/C ratio of the gel precursors. 已经发现，总孔隙度和碳的平均孔径随着凝胶前体的摩尔比的增加而增大。
- With the same content of templates, the pore diameter of the generated material with glycerol as template is bigger than the one with pentaerythrite. 结果证实，所得粉体具有较高的比表面积和孔体积，孔径与分子的链长及取代基有关，在相近的模板剂含量下，由季戊四醇制得的孔径大于以丙三醇为模板剂所得的粉体。
- The diameter distribution of the mirospheres was controlled by changing the mechanical rotation rate in the gelation process. 通过改变机械搅拌速率可以控制微球的粒径分布。
