Abstract

Adsorption of NH3 molecule on a carbon nanocone (CNC) was investigated using density functional theory in terms of energetic, structural, and electronic properties. It is mainly demonstrated that (i) the NH3 molecule preferentially tends to attach to the apex of the CNC through its N atom, releasing energy of 54.28 kcal/mol, (ii) the CNC may be a promising candidate in gas sensor devices in order to detect the NH3 molecule, and (iii) the field electron emission current may be enhanced from CNC surface upon the adsorption process.

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