Multi-wavelength Raman spectroscopy study of supported vanadia catalysts: Structure identification and quantification

Wu, Zili

doi:10.1016/S1872-2067(14)60082-6

Title: Multi-wavelength Raman spectroscopy study of supported vanadia catalysts: Structure identification and quantification

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Abstract

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 our review, we make use of two supported vanadia systems, VO_x/SiO₂ and VO_x/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. Moreover, 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.

Authors:

Wu, Zili ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Mon Oct 20 00:00:00 EDT 2014

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1185437

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Chinese Journal of Catalysis

Additional Journal Information:: Journal Volume: 35; Journal Issue: 10; Journal ID: ISSN 1872-2067

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; multi-wavelength; raman spectroscopy; resonance raman; vanadia; silica; ceria

Citation Formats


                    Wu, Zili. Multi-wavelength Raman spectroscopy study of supported vanadia catalysts: Structure identification and quantification.  United States: N. p., 2014. 
Web.  doi:10.1016/S1872-2067(14)60082-6.

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                    Wu, Zili. Multi-wavelength Raman spectroscopy study of supported vanadia catalysts: Structure identification and quantification.  United States.  https://doi.org/10.1016/S1872-2067(14)60082-6

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                    Wu, Zili. Mon .  
"Multi-wavelength Raman spectroscopy study of supported vanadia catalysts: Structure identification and quantification".  United States.  https://doi.org/10.1016/S1872-2067(14)60082-6.  https://www.osti.gov/servlets/purl/1185437.

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@article{osti_1185437,

  title        = {Multi-wavelength Raman spectroscopy study of supported vanadia catalysts: Structure identification and quantification},

  author       = {Wu, Zili},

  abstractNote = {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 our 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. Moreover, 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.},

  doi          = {10.1016/S1872-2067(14)60082-6},

  journal      = {Chinese Journal of Catalysis},

  number       = 10,

  volume       = 35,

  place        = {United States},

  year         = {Mon Oct 20 00:00:00 EDT 2014},

  month        = {Mon Oct 20 00:00:00 EDT 2014}

}

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