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luoxiaguwu

银虫 (小有名气)

应助: 0 (幼儿园)
金币: 326.2
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在线: 108.3小时
虫号: 1934035
注册: 2012-08-11
专业: 无机非金属类光电信息与功

[求助] 黑炭BET，孔容孔径分析已有1人参与

我做的两种黑炭材料的BET分析，材料1的氮气吸附解吸图线为过原点的线性
材料2的氮气吸附解吸图线为不闭合型
结果分析如下：
材料1：
multipoint BET--------------------9.384e+01 m?g
BJH method cumulative adsorption surface area--------1.893e+02 m?g
BJH method cumulative desorption surface area--------1.862e+02 m?g
DH method cumulative adsorption surface area--------1.957e+02 m?g
DH method cumulative desorption surface area--------1.908e+02 m?g
t-method external surface area---------9.834e+02 m?g

Total pore volum-----------1.434e-01 cc/g
BJH method cumulative adsorption pore volum--------1.888e-01 cc/g
BJH method cumulative desorption pore volum--------1.868 e-01 cc/g
DH method cumulative adsorption pore volum--------1.891e-01 cc/g
DH method cumulative desorption pore volum--------1.864e-01 cc/g
HK method cumulative pore volum--------2.284e-02 cc/g

Average pore readius----------3.055e+00 nm
BJH method cumulative adsorption pore readius--------1.157e-00 nm
BJH method cumulative desorption pore readius--------1.169e-01 nm
DH method cumulative adsorption pore readius--------1.157e-00 nm
DH method cumulative desorption pore readius--------1.169e-00 nm
HK method pore readius--------9.287e-01 nm

材料2：
multipoint BET--------------------2.560e+02 m?g
BJH method cumulative adsorption surface area--------3.733e+02 m?g
BJH method cumulative desorption surface area--------1.846e+02 m?g
DH method cumulative adsorption surface area--------3.859e+02 m?g
DH method cumulative desorption surface area--------1.920e+02 m?g
t-method external surface area---------1.859e+02 m?g
t-method micropore surface area---------1.859e+02 m?g

Total pore volum-----------2.267e-01 cc/g
BJH method cumulative adsorption pore volum--------2.425e-01 cc/g
BJH method cumulative desorption pore volum--------1.648 e-01 cc/g
DH method cumulative adsorption pore volum--------2.426e-01 cc/g
DH method cumulative desorption pore volum--------1.656e-01 cc/g
t-method micropore pore volum---------3.730e-02 cc/g
HK method cumulative pore volum--------1.083e-01 cc/g

Average pore readius----------1.771e+00 nm
BJH method cumulative adsorption pore readius--------5.222e-01 nm
BJH method cumulative desorption pore readius--------9.604 e-01 nm
DH method cumulative adsorption pore readius--------5.522e-01 nm
DH method cumulative desorption pore readius--------1.152e-00 nm
HK method pore readius--------1.838e-01 nm

基于以上数据，材料1没有t-method 的微孔面积和微孔体积，是说明材料1都是大孔吗？怎么解释呢。外表面积又是什么意思呢？但其的吸附等温线很怪异，对于这两种材料我该选择什么模型的数据合适呢？这些数据中能得出微孔率吗？
跪求各位大神帮帮忙

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