TY - JOUR
T1 - Multi-wavelength Raman spectroscopy study of supported vanadia catalysts
T2 - Structure identification and quantification
AU - Wu, Zili
N1 - Publisher Copyright:
© 2014, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
PY - 2014/10/20
Y1 - 2014/10/20
N2 - Revealing the structure of supported metal oxide catalysts is a prerequisite for establishing the structure-catalysis relationship. Among a variety of characterization techniques, multi-wavelength Raman spectroscopy, combining resonance Raman and non-resonance Raman with different excitation wavelengths, has recently emerged as a particularly powerful tool in not only identifying but also quantifying the structure of supported metal oxide clusters. In this review, we make use of two supported vanadia systems, VOx/SiO2 and VOx/CeO2, as examples to showcase how one can employ this technique to investigate the heterogeneous structure of active oxide clusters and to understand the complex interaction between the oxide clusters and the support. The qualitative and quantitative structural information gained from the multi-wavelength Raman spectroscopy can be utilized to provide fundamental insights for designing more efficient supported metal oxide catalysts.
AB - Revealing the structure of supported metal oxide catalysts is a prerequisite for establishing the structure-catalysis relationship. Among a variety of characterization techniques, multi-wavelength Raman spectroscopy, combining resonance Raman and non-resonance Raman with different excitation wavelengths, has recently emerged as a particularly powerful tool in not only identifying but also quantifying the structure of supported metal oxide clusters. In this review, we make use of two supported vanadia systems, VOx/SiO2 and VOx/CeO2, as examples to showcase how one can employ this technique to investigate the heterogeneous structure of active oxide clusters and to understand the complex interaction between the oxide clusters and the support. The qualitative and quantitative structural information gained from the multi-wavelength Raman spectroscopy can be utilized to provide fundamental insights for designing more efficient supported metal oxide catalysts.
KW - Ceria
KW - Multi-wavelength
KW - Raman spectroscopy
KW - Resonance Raman
KW - Silica
KW - Vanadia
UR - http://www.scopus.com/inward/record.url?scp=84911090282&partnerID=8YFLogxK
U2 - 10.1016/S1872-2067(14)60082-6
DO - 10.1016/S1872-2067(14)60082-6
M3 - Review article
AN - SCOPUS:84911090282
SN - 0253-9837
VL - 35
SP - 1591
EP - 1608
JO - Chinese Journal of Catalysis
JF - Chinese Journal of Catalysis
IS - 10
ER -