The Raman spectra of as-deposited films show two strong peaks at 770 and 950 cm 1 due to vibrations of the W 6+ –O and W 6+ O bonds, respectively, and a weaker peak at 220 cm 1 that we attribute to the vibrations of the W 4+ –O bonds. When lithium or hydrogen ions are ...
举例:In order to obtain better confirmation on the presence of H4SiMo12O40, Raman spectroscopic investigation was also conducted, because Raman spectroscopy is a sensitive technique to study supported metal oxide and it is complementary to IR investigation. The Raman spectra of the Mo(VI)@mSiO2an...
UV Raman spectra of these samples indicate thatthe mixed phases ofanatase and rutilecoexistin the surface region.Namely, when the TiO2 sample is calcined at 700– 750 oC,the phase junctions betweenanatase and rutileare derived on the surface ofthe rutile TiO2,as characterized byUV Raman spectrosc...
First-order Raman spectra have been measured at room temperature in five materials of the D 4 h point group: Ti O 2 , Mg F 2 , Zn F 2 , Fe F 2 and Mn F 2 . The experiments utilized an argon laser light source and photo-electric detection. The four Raman-active phonon...
举例:In order to obtain better confirmation on the presence of H4SiMo12O40, Raman spectroscopic investigation was also conducted, because Raman spectroscopy is a sensitive technique to study supported metal oxide and it is complementary to IR investigation. The Raman spectra of the MoVI@mSiO2 and...
Gasochromic mechanism in a-WO3 thin films based on Raman spectroscopic studies The gasochromic mechanism in amorphous tungsten oxide films has been investigated using Raman scattering measurements. The Raman spectra of as-deposited fi... Lee, Se-Hee,HM Cheong,P Liu,... - 《Journal of Applied ...
Raman spectra of ferritungstite are interpreted on the basis of model calculations. The presence of two broad vibrational bands in the spectral range 600–1000 cm 1 is explained through the combination of two factors. Mainly, two principle bands in the spectral ranges 600–750 and 850–1000 cm...
Structure and ionic conduction in the Ag2O·WO3·TeO2 glass system The FT–IR and Raman spectra of these samples reveal that the glass network consists of TeO4, TeO3, WO4 and WO6 polyhedra... BVR Chowdari,PP Kumari - 《Journal of Materials Science》 被引量: 38发表: 1998年 ...
Extended x-ray-absorption fine-structure (EXAFS) spectra of α-MnS, CoS, α-NiS, β-NiS, NiS, wurtzite ZnS, and GaS have been recorded at the S K edge. The... DR Warburton,D Purdie,CA Muryn,... - 《Physical Review B Condensed Matter》 被引量: 39发表: 1992年 加载更多来源...
This is probably caused by competition between vanadium and molybdenum oxide (or vanadium and tungsten oxide) species for reaction with the alumina hydroxy groups, since the IR spectra showed that on addition of these metal oxides the same type of alumina hydroxy groups are consumed. The prese...