1) nitrogen adsorption
氮吸附
1.
It was found by nitrogen adsorption that when the diameter of chars decreased, the total pore volume and pore specific surface area increased, but the average pore size decreased.
3mm的煤焦气化反应活性较高;氮吸附试验结果显示,随着煤焦粒径减小,煤焦表面总的孔体积和总表面积增大,煤焦表面孔结构的平均直径减小。
2.
The surface area and pore texture of ACF were characterized by nitrogen adsorption.
活性炭纤维比颗粒活性炭具有更高的吸附能力和更快的吸附动力且能有效去除挥发性有机化合物(volatile organic compounds,VOCs),活性炭纤维吸附剂其比表面积与孔结构通过氮吸附来表征。
2) N2 adsorption
氮吸附
1.
N2 adsorptions indi-cate that the modified high-silica STI zeolites treated with HCl solution possessed open and perfect chan-nels,.
低温氮吸附表明,经盐酸处理的高硅STI沸石孔道开放完美,但经氟硅酸铵处理的样品孔道被部分堵塞。
2.
The capacity of ion exchange and the adsorption of theH-STI zeolite samples modified with different procedures were investigated with silver ion exchange and N2 adsorption at low temperature.
用银离子交换、低温氮吸附等表征不同改性方法所得H-STI沸石的离子交换容量和吸附等性质。
3) N 2 adsorption
氮吸附
1.
The porous structure of modified HY zeolites is studied by N 2 adsorption.
本文利用X -射线衍射 ,低温氮吸附和核磁共振等物性表征手段 ,对改性Y型分子筛的结构性质进行了分析与比较。
4) nitrogen adsorption
氮气吸附
1.
Pore structure characterization of cotton fiber by nitrogen adsorption;
氮气吸附法表征棉纤维的孔结构
2.
Nitrogen adsorption (77.
本论文采用氮气吸附法测定棉纤维孔隙结构,得到了关于棉纤维内部孔体积及其分布的参数。
5) N_2 absorption apparatus
氮吸附仪
1.
A method for measuring the specific surface area and pore volume of ion-exchange resin by N_2 absorption apparatus is introduced.
介绍了用氮吸附仪测定离子交换树脂的比表面、孔容的方法。
补充资料:特性吸附与半胶束吸附
特性吸附与半胶束吸附
specifical adsorption and hemi-micelle adsorption
texing xifu yu banJ旧oshu xifu特性吸附与半胶束吸附(speeifieal adsorp-tion and hemi一mieelle adsorption)矿物一水界面的吸附的两种形式。特性吸附是因矿物表面与溶液中某种组分(离子或分子)有特殊的亲和力而产生的吸附,也称特殊吸附。特性吸附不仅可以改变电位的数量而且还可以改变电位的符号。例如,刚玉(A12O3)在NaZSO‘或RSO;Na(烷基硫酸钠)溶液中,电动电位随溶液浓度的增大由正值逐渐减小,直至变为负值,说明刚玉对50矛一或RSO不离子有特殊的吸引力。半胶束吸附是水溶液中的表面活性剂在矿物表面产生的吸附,当吸附量达到一定值以后,由于烃基的缔合作用,表面活性剂的离子或分子在矿物表面上形成紧密的吸附层,这类似于溶液中形成的胶束结构,但所形成的“胶束”与溶液中形成的胶束不同,只有二维空间,故称这类吸附为半胶束吸附。矿物表面对胺类捕收剂的吸附,当胺的浓度较大时,常可以产生半胶束吸附。 (龚焕高)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条