external surface area

The fractal dimension of surface roughness and external surface area of pores obtained from adsorption isotherms were used to modify d_BET calculation formula.

可以使用吸附等温线来获得表面粗糙度的分数维维数D和微孔的表面积S t，且用D和S t来修正d（BET）的计算公式。

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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.

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。

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The removal of free iron oxides causes a considerable reduction in specific surface area, especially the external surface area.

红壤胶体的比表面较小，当去除游离氧化铁后，表面积特别是外表面积显著减小。

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The results showed that the novel fibrous materials contain carboxylic functional group with appropriate hydrazide cross-link structure. Owing to high external surface area and short transfer route, FFC-1 ion exchange fiber is provided with excellent reaction kinetic property.

结果表明：FFC-1离子交换纤维为含适量酰肼类交联键的聚羧酸（钠）型离子交换材料，外比表面积大和传质距离短是其反应动力学性能优异的主要原因。

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DR plot, which can be deduced theoretically without standard adsorption isotherm, can get the characteristic adsorption energy related to the micropore surface, while t plot and α s plot can get the total, internal and external surface area.

DR图法有一定的理论基础，不需要标准吸附等温线，能获得与微孔表面能相关的特征吸附能；t图和αs图法能得到总表面积、内表面积和外表面积。

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Because CNTs possess fibrous shape with high aspect ratio, large accessible external surface area, well developed mesopores, and chemical and thermodynamic stability, CNTs hold superior removal capacities of environmental pollutants.

由于CNTs特殊的纤维性结构、巨大的可接触外表面积、发达的间隙孔结构以及较高的化学和热力学稳定性，CNTs拥有了较高的环境污染物吸附能力。

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As compared to montmorillonite, the total surface area, micro-pore surface area and micro-pore volume of copper-loaded montmorillonite are reduced, while the cation exchange capacity, external surface area, pore volume and pore diameter are increased.

与蒙脱石相比，载铜后的蒙脱石总比表面积、微孔比表面积、微孔体积减少，而离子交换容量、外比表面积、孔体积和孔径增大。

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An Experimental Investigation on External Surface Area of Surfactant-modified Zeolite

表面活化沸石外比表面积的试验研究

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