specific surface area

Its crystal structure, specific surface area, pore size distribution, oxygen storage capacity ( OSC) and redox behavior were investigated by X-ray diffraction, BET, oxygen pulse adsorption and H_ ( 2)-temperature programmed reduction ( H_ ( 2)-TPR).

采用X射线衍射、BET、氧脉冲吸附和H2程序升温还原（H2-TPR）等技术对材料的晶体结构、比表面积、孔结构、储氧性能和还原性能进行了研究。

Anthracite char has poor pore structure and small specific surface area.

无烟煤焦分支孔贫乏,比表面积很小.

With high specific surface area, ordered pore structure, facilely tailorable pore size ( 2-3nm) excellence, Mesoporous molecular sieve MCM-41 often use macromolecule compose field, and can used to the converge reactivity reactor.

介孔分子筛MCM-41具有比表面积高、孔道结构规则及孔径分布均匀（约为2～3nm）等优点，可用在高分子合成领域，特别是聚合反应的反应器。

In order to obtain high catalysis effect, dolomite with bigger specific surface area should be chosen.

要想得到好的焦油裂解效果, 须选择高比表面积的白云石.

The bigger the specific surface area of ash particles and thus the more mercury adsorbed.

飞灰颗粒比表面积增大,飞灰的汞吸附趋于增加.

Methods of modified coal tar pitch for preparing high specific surface area activated carbon were studied.

研究了用于制备高比表面积活性炭的改质煤沥青的调制方法.

Microfiber have most big specific surface-area and sufficient effect of capillary.

超细纤维具有比表面积大和丰富的毛细管效应.

The BET specific surface area reaches 477.7 m 2 ? g-1 for NiO calcined at 523 K.

结果表明,在523K下焙烧得到的氧化镍BET比表面达到 477.7m ~2·g~(-1).

The particles may be spherical or irregular, of varying porosity and specific surface area.

颗粒可以是球型的,也可以是不规则形状的, 多孔性和比表面积有所不同.

The simple determination of specific surface area for porous solids by ethanol-desiccator method is described.

简易干燥器乙醇法测定多孔物质比表面积.

High specific surface area activated carbon was prepared frombamboo by chemical activation with KOH.

以竹屑为原料,研究了KOH活化法高比表面积活性炭的制备工艺.

The presence of low amount of Yb3+ in TiO2 can inhibit the phase transformation from anatase to rutile, suppress the growth of TiO2 grains, raise the specific surface area, and improve the high temperature stabilization of pores in the composite nano-powders as well.

低量Yb3+掺杂可以抑制TiO2由锐钛矿相向金红石相的转变，阻碍TiO2晶粒的生长，改善粉体的表面织构特性，提高高温组织稳定性。

It is indicated that BET specific surface area is most significant influenced by reaction temperature, and the sequence of influence level are concentration of sodium silicate, cocurrent time and concentration of vitriol.

实验结果表明，反应温度对沉淀二氧化硅的BET比表面积的影响最大，其次是硅酸钠浓度、并流时间和硫酸浓度。

Fly ash has the potential chemical cementitious characteristics and high specific surface area.

粉煤灰具有巨大的比表面积和潜在的化学胶凝特性.

The main features of CNTs contain highly-perfect graphitization structure and high specific surface area.

兼具高石墨化程度以及高比表面积是奈米碳管的特性.

The diminishing process of Taylor bubble during physical absorption was recorded by the high-speed camera, and the temporal evolution process for the Taylor bubble was obtained, subsequently, the liquid mass transfer coefficient kL and specific surface area a for two-phase flow were calculated.

利用高速摄像仪记录了物理吸收过程中Taylor气泡的变小过程，得到气泡长度随时间的变化关系，并由此得出液相传质系数kL以及两相流的比表面积a。