I have got 3 BET reports of minerals, the first one belongs to the raw ore and the t-Plot Micropore Area is much bigger than the BET area, therefore its t-Plot External Surface Area is negative, does that mean there is no micropore and the calculated t-Plot micropore volume is invalid?
After 1 h milling, the BET surface area is increased and each value in the report seems to be reasonable, I think some micropores occurred. However, after long time milling, the third report shows negative t-Plot micropore volume and no t-Plot Micropore Area, does that also means no micropore? What is the difference between the third one and the raw ore?
I think you have problems with equipment or preliminary sample treatment. In your file at moderate pressures, the adsorbed amount of N2 is negative. It is hard to understand what is the reason for that.
Check for the intercept of the line with y-axis. Is it positive or negative? I guess the the points selected for t-plot are wrong. Most likely there are no micropores, and very few pores at all. You have a really low SSA and had to use 700 mg sample to get any readings.
- Badges
- Science topic
- Similar topics
- Philosophy
- Philosophy Of Science
- Reasoning