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- W2352687957 abstract "The reaction mechanism of furan formation during decarbonylation of furfural on the Pt(111) plane was investigated by density functional theory generalized gradient approximation calculations with the slab model.The adsorption energy of furfural was calculated to determine preferred adsorption sites on the Pt(111) plane.The revealed possible mechanisms for the decarbonylation of furfural on the Pt(111) plane were studied.The results showed that a furfural molecule loses 0.765 electrons after adsorption on the Pt(111) surface.The d orbitals of the metal surface interact strongly with the π bonds of the furfural ring.This reduced the aromaticity of the furfural ring and the C atoms showed characteristics consistent with sp~3hybridization.The molecular plane of the adsorbate was distorted,and corresponding changes of bond lengths were found.The C―H(O) bonds and ―CHO of furfural tilted away from the Pt surface.The calculations show that furan was a possible product of the decarbonylation reaction.We then searched the transition states(TSs) and reaction potential energy surfaces with the linear and quadratic synchronous transit(LST/QST) complete search.By comparing energy barriers,we obtained the optimal path,which involved furfural forming an acyl intermediate by loss of the H atom from the branched chain rather than direct decarburization.Furan was then formed by decarburization and hydrogenation of the acyl intermediate.The calculated barrier for the rate-determining step(C_4H_3O)CO*+*→C_4H_3O*+ CO*(* is adsorption site) is 127.65 kJ·mol~(-1)." @default.
- W2352687957 created "2016-06-24" @default.
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- W2352687957 date "2013-01-01" @default.
- W2352687957 modified "2023-09-23" @default.
- W2352687957 title "Adsorption and Decarbonylation Reaction of Furfural on Pt(111) Surface" @default.
- W2352687957 hasPublicationYear "2013" @default.
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