In activated carbon samples synthesized by KOH and NaOH as activation agents, KOH activated samples have higher rate of micropore area than NaOH activated samples.
Although NaOH provides higher surface area than KOH, but the pore size distribution is wider.
My question is why KOH can produce smaller pores rather than NaOH?
Hello, I think that beyond to the largest ionic size of K compared with ionic size of Na, that will put off the generated of pore size....
Hi,
I suggest you to read this paper:
Article KOH and NaOH Activation Mechanism of Mutilwalled Carbon Nano...
BR,
Davide Bergna
Hello This thesis will help you, too.
https://mospace.umsystem.edu/xmlui/handle/10355/8078
Dear All,
Thank you so much for your helps. Your suggestions made a good case for my researches, but still there is no definite reason for this behavior of KOH and NaOH on activated carbons.
There is a wide range of possibilities. To find the final answer further researches and studies are required.
I believe it can be an interesting research subject, for pore size distribution is an important factor to produce effective adsorbent materials.
Wish you best of luck in your researches,
Sahand
What if You make a series of experiments and go further down in the periodic system, maybe even try with Li? With the results You might exclude or confirm the effects of ion size.
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