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its high specific surface area
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  具有较高的比表面积
     Electron beam coirradiation induced graft polymerization has been carried out in air between methyl methacrylate (MMA) and anataseand rutileTiO2 nanoparticles, respectively. The results show that the grafting yield of ATiO2 (10.5%) is larger than that of RTiO2 (6.1%), owing to its high specific surface area.
     锐钛矿和金红石型纳米TiO2(A-TiO2和R-TiO2)分别与甲基丙烯酸甲酯(MMA)在空气中进行电子束共辐射接枝聚合,结果表明A-TiO2接枝率(10.5%)高于R-TiO2(6.1%),被认为是由于A-TiO2具有较高的比表面积造成的。
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  “its high specific surface area”译为未确定词的双语例句
     The results show that the adsorption capacity and adsorption speed of PACF are higher than that of AC because of its high specific surface area and extensively micropore structure.
     结果表明。 由于PACF具有高的比表面积和极为发达的微孔结构,因而比AC具有更高的吸附量与吸附速度。
短句来源
     The fact comes from its high specific surface area, which can adsorbs more SDS than "multi-chain" microgels.
     通过稀溶液粘度实验 ,发现单链微凝胶巨大的比表面积使其在SDS水溶液中具有异常高的相转变温度 .
短句来源
     Zeolite, for its high specific surface area, powerful absorption capacity and good exchange prosperities has been widely applied to environmental protection industry and feed industry.
     沸石由于比表面积大、吸附性能高、离子交换性良好,还可做为理想的生物载体,已在环保和饲料工业领域中得到了广泛的应用。
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  相似匹配句对
     high salience.
     (3)“高显著度”。
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     Its accuracy is high.
     使用模型参数进行孔隙度、含水饱和度计算 ,计算结果精度高。
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     It is of high toxicity.
     该菌具有较强的毒力。
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     Its Accuracy is high.
     估计的准确度较高;
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     The sensitivity and specificity were high.
     灵敏度及特异性较高。
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  its high specific surface area
Experimental results showed bonechar as the best support material with high biomass-retaining capacity because of its high specific surface area (53.35?m2?g-1 of bedding material) and pore specific volume (0.244?cm3?g-1 of bedding material).
      
The use of nickel foam as an electrode material is of interest for these electrocatalytic reactions due to its high specific surface area (4000 to 11000 m-1) and its high porosity (over 0.97).
      


The author's previous work indicated that the activity of granular fused iron catalysts decreased seriously with time due to the gradual plugging up of the pore volume of catalysts by the high boiling point products. In this paper, the activity data were treated with Wheeler's internal diffusion law mathematically. And the results suggest that the rate is a chemical controlling one in the initial period of the synthesis, and the coefficient of the catalysts surface is of 0.98 (with space velocity 1000 hr~(-1),...

The author's previous work indicated that the activity of granular fused iron catalysts decreased seriously with time due to the gradual plugging up of the pore volume of catalysts by the high boiling point products. In this paper, the activity data were treated with Wheeler's internal diffusion law mathematically. And the results suggest that the rate is a chemical controlling one in the initial period of the synthesis, and the coefficient of the catalysts surface is of 0.98 (with space velocity 1000 hr~(-1), CO conversion 90% or so). When the catalysts pore volume are plugged up by the high boiling point products (whether the pore to be micro or macro), the rate becomes an internal diffusion controlling one, and the effectiveness of the catalytic surface changed into 0.082. The calculated coefficient of diffusion is of 2.4 10~(-5) cm~2/sec, which is in agreement with the magnitude of liquid-phase diffusion. Under the diffusional controlling conditions, the activity level of catalysts depends upon Deff, ks and Sg, by the rate law k∝2~(1/Deff·ks·Sg.) Where change of effective diffusivity. Deff, under the liquid phase conditions is not essential. But both the specific reaction rate, ks, and the effective surface, Sg are the major factors to the catalytic activity improvements. Therefore the precipited iron catalysts, owing to its high specific surface area and high specific activity, may be the promising one of the granular catalysts suitable for the high space velocity synthesis.

已往的工作指出,顆粒熔鉄催化剂在合成过程中活性有随时間下降的現象,认为主要是由于腊液堵塞孔隙的关系,应用成型方法构成大孔,能够有利于腊液的流出,延緩了活性下降的时間,但当腊液堵滿孔隙时,活性下降的水平仍与未成型的顆粒催化剂相近。本文根据活性方面的数据,进行了宏观动力学的分析,由动力学計算再次指明:当腊液未堵塞孔隙吋,合成反应是化学反应控制,此时表面有效利用系数达0.98(空速1000,CO轉化90%以上)。而当腊液堵塞孔隙后,轉为液相扩散控制,对362-1大顆粒催化剂言,此时表面有效利用系数为0.082,并求得气体通过液柱的扩散系数为2.4×10~(-5)厘米~2/秒。在扩散控制的情况下,由动力学分析指明,能影响活性水平的主要是Deff、Ks、Sg。有效扩散系数Deff在液相扩散情况下的改变是不大的,增大孔径并不能提高扩散控制时的活性水平。因此,孔径的增大在合成烃情况下仅起延緩腊液的积聚作用,而不能提高終活性的水平。由动力学分析指出,沉淀剂由于有大的表面积(較熔鉄剂大数倍以至数十倍),因此,可能适用于高速固定床操作而不須进行再生。实驗也驗証了这个看法。

In the present paper, the comparative investigation of the adsorption behaviour of trivalent gold ion on the surface of pitch-based activated carbon fiber (PACF) and activated carbon particle (AC) has been carried out. Kinetic adsorption model is also established. The results show that the adsorption capacity and adsorption speed of PACF are higher than that of AC because of its high specific surface area and extensively micropore structure. Moreover, the difference of adsorption behaviour of PACF which...

In the present paper, the comparative investigation of the adsorption behaviour of trivalent gold ion on the surface of pitch-based activated carbon fiber (PACF) and activated carbon particle (AC) has been carried out. Kinetic adsorption model is also established. The results show that the adsorption capacity and adsorption speed of PACF are higher than that of AC because of its high specific surface area and extensively micropore structure. Moreover, the difference of adsorption behaviour of PACF which is made by different activating reagents are also preliminary discussed.

本文比较研究了沥青基活性炭纤维(PACF)和普通粒状活性炭(AC)在酸性水溶液中(pH=1)对三价金离子的吸附行为,并建立了近似的吸附动力学模型。结果表明。由于PACF具有高的比表面积和极为发达的微孔结构,因而比AC具有更高的吸附量与吸附速度。此外,也初步探讨了用不同活化剂制得的PACF在吸附三价金离子时吸附性质的差异。

The "single-chain" microgels were synthesized successfully from the crosslinkable Poly(N-isopropylacryamide) copolymers. The type of microgels has the sane chemical constitution and average molecular weight as those of their precursors. It was confirmed that the "single-chain" microgels were prepared successfully from the data of viscosity and size-exclusion chromatogram. If mixing the microgels with SDS, the LCST of the "single-chain" microgels will be much higher than that of the "multi-chain" microgels. The...

The "single-chain" microgels were synthesized successfully from the crosslinkable Poly(N-isopropylacryamide) copolymers. The type of microgels has the sane chemical constitution and average molecular weight as those of their precursors. It was confirmed that the "single-chain" microgels were prepared successfully from the data of viscosity and size-exclusion chromatogram. If mixing the microgels with SDS, the LCST of the "single-chain" microgels will be much higher than that of the "multi-chain" microgels. The fact comes from its high specific surface area, which can adsorbs more SDS than "multi-chain" microgels. The "single-chain" microgels have also higher crosslinking density than the "multi-chain" microgels.

在制备带有可交联基团的聚N -异丙基丙烯酰胺共聚物的基础上 ,成功地合成了所谓高分子单链微凝胶 .该类微凝胶与其线型高分子前体具有相同的化学结构和平均分子量 .通过溶液粘度 ,气相分配为色谱法等实验手段初步研究了它的溶液性质 ;并与其线型共聚物前体和多链微凝胶进行了比较 .通过稀溶液粘度实验 ,发现单链微凝胶巨大的比表面积使其在SDS水溶液中具有异常高的相转变温度 .另外 ,单链微凝胶比多链微凝胶还具有更高的交联密度

 
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