Reply to Comment on 'Multiwavelength Raman Spectroscopic Study of Silica-Supported Vanadium Oxide Catalysts'

摘要

In his comment, Stiegman criticized certain points of our paper titled "Multiwavelength Raman Spectroscopic Study of Silica-Supported Vanadium Oxide Catalysts". The essential point of his criticisms is our Raman band (associated with V=O and V-O-Si modes) assignment of the VOx/SiO2 system, where Stiegman made the assignment based on an 8-atom model study while our assignment was supported by a DFT study on cluster models, As shown below, we believe Stiegman's model does not sufficiently consider the profound effect of the surface structure and environment of silica on the vibrational spectra and normal modes of surface vanadia species. We will start by showing how our Raman results are well supported by the DFT cluster models compared with Stiegman's model. We will also address his other comments.