May be this VI, IV or a mixed type? What means the bend of adsorption curve in 0.7 p/p0 area?
This is alumina. It has a monomodal pore size.
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Fernando Vallejos-Burgos
Why you think pore size is monomodal? I would guess that there are mesopores of two different sizes.
Do you have BJH or DFT pore size distribution plots?
See, for example, this article which shows how bimodal mesopores look in an adsorption isotherm:
"Bimodal mesoporous silica with bottleneck pores"
M. J. Reber and D. Brühwiler
Dalton Trans., 2015,44, 17960-17967
DOI: 10.1039/C5DT03082J
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Anna Matveyeva
Fernando Vallejos-Burgos and Christian Weinberger thank you very much for your useful answers!
Best wishes
Anna
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