In order to make sure that the gas adsorption on any nanomaterial is just physical is there any chemical treatment which could help?
It would help in fabricating efficient gas sensors which can operate at room temperature with quick response and complete recovery to initial state.
V. N. Ravi Kishore V.
That depends on which nanoparticles and the gas you are interested in.
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V. N. Ravi Kishore V.
You adsorb certain gases at low temperature onto a surface and desorb the same from the surface at higher temperatures.
By careful selection of gas and the surface, molecules can be made to physisorb onto a surface and not chemisorb.
E.g. For noble gases the mechanism of adsorption on most surfaces is physisorption.
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