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- W2369715419 abstract "We prepared V2O5/CeO2 catalysts with different V2O5 loadings(5% and 15%) by incipient wetness impregnation.Raman spectroscopy(514 and 325 nm excitation laser lines),X-ray diffraction(XRD),UV-visible diffuse reflectance spectroscopy(UV-Vis DRS),and N2 adsorption were used to study the solid-state reaction between V2O5 and CeO2.We found that the vanadium oxidation species reacted with ceria and formed a CeVO4 phase on the surface of the sample that was calcined at 300℃,and the reaction was promoted at higher temperature.In addition,the absorption at 325 nm is stronger than that at 514 nm for the sample,therefore,325 nm Raman spectroscopy is more sensitive to surface information than 514 nm Raman spectroscopy.Calcination at low temperature leads to unreacted V2O5 in the pores of CeO2 but this is hindered by CeVO4 on the sample surface.Therefore,the Raman band of V2O5 is present when using the 514 nm excitation laser line and absent when using the 325 nm excitation laser line." @default.
- W2369715419 created "2016-06-24" @default.
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- W2369715419 date "2010-01-01" @default.
- W2369715419 modified "2023-09-25" @default.
- W2369715419 title "Raman Spectroscopic Study on the Solid-State Reaction of V_2O_5/CeO_2 Catalyst" @default.
- W2369715419 hasPublicationYear "2010" @default.
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