My colleague performed BET surface area measurements for my samples Li4Ti5o12.
They gave me this plot, but I am not sure how to interpret, I saw some rudimentary materials and they were able to get surface area (m2/g)
Can I also perform those same calculations? Any materials or links to resolve this will be appreciated!
Get a copies of Gregg and Sing (Adsorption, Surface Area and Porosity) and Structure of Metallic Catalysts by J R Anderson from your library. This will answer your question. Perhaps your colleagues can help too?
Dear Ralph Nicolai Nsara,
The monolayer capacity Vm (The whole surface is covered with N2)
Vm= 1/ (slope+intercept) ....... in cc/g
surface area (m2/g) = Vm * 4.3532
where the value (4.3532) is the conversion of the volume of nitrogen gas into area occupied by Nitrogen where (1 molecule occupies 16 Angstrom^2)
A 9-point BET will give you a decent result for your surface area but you should ideally perform full isotherm measurements if you want to interpret a plot for more detail, e.g. micro / meso / macropore characteristics, pore volumes, pore size distributions, etc.
Thank you very much everyone! I have obtained and learned how to obtain the BET with all of your help. Cheers!
- Badges
- Science topic
- Similar topics
- Phytochemistry
- Extracts