|
Abstract
|
The reduction mechanisms of N2O on surfaces of P-doped carbon nanocone (CNC) and Si-doped boron nitride nanocone
(BNNC) were investigated by using of density functional theory. The adsorption energies of P and Si on surfaces of CNC
and BNNC were - 293.1 and - 325.7 kcal/mol, respectively. The decomposition of CNC-P–N2O and BNNC-Si–N2O and
reduction of CNC-P–O* and BNNC-Si–O* by using of the CO molecule were investigated. Results show that BNNC-Si–O*
has lower activation energy and higher DGad than CNC-P–O*. Results show that activation energy for BNNC-Si–O*-
? N2O ? BNNC-Si–O2 ? N2 and CNC-P–O* ? N2O ? CNC-P–O2 ? N2 reactions were 32.56 and 36.78 kcal/mol,
respectively. The results show that P-doped CNC and Si-doped BNNC can be potential catalysts to reduction of N2O.
|