how the particle shape can changes influence the surface area calculation from nano to bulk ?
in my sample the particle are plate shape.
what we have to consider if the particle are in homogenous shape ?
There is a dichotomy in your statements:
- "in my sample the particle are plate shape"
- "How do we calculate the therotical surface area calculation for 200 nm ,1micron meter and 10 micron meter?"
You can only describe the sphere with a single parameter (and calculate the surface area as pi.d2). All other (irregular) shapes (e.g. your plates) require at least 2 parameters to describe. The maximum dimension of a unit cube is 1.732 units... For a cube, 6 surface faces are exposed and I think that this is the hidden agenda to your question. Start with a unit cube and create new surface by division making zillions of new particles and increasing the SSA. As SSA = 6/D[3,2], then for unit density then 1 nm = 6000 m2/g, 100 nm = 60 m2/g, and 1 um = 6 m2/g
See also the attached.
There is a dichotomy in your statements:
- "in my sample the particle are plate shape"
- "How do we calculate the therotical surface area calculation for 200 nm ,1micron meter and 10 micron meter?"
You can only describe the sphere with a single parameter (and calculate the surface area as pi.d2). All other (irregular) shapes (e.g. your plates) require at least 2 parameters to describe. The maximum dimension of a unit cube is 1.732 units... For a cube, 6 surface faces are exposed and I think that this is the hidden agenda to your question. Start with a unit cube and create new surface by division making zillions of new particles and increasing the SSA. As SSA = 6/D[3,2], then for unit density then 1 nm = 6000 m2/g, 100 nm = 60 m2/g, and 1 um = 6 m2/g
See also the attached.
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