Mn and Fe ions and oxo clusters in ZSM-5: pushing the limits of X-ray spectroscopy
Publication date
2007
Authors
Radu, D. C.
Glatzel, P.
Heijboer, W.M.
Bitter, J.H.
Weckhuysen, Bert
de Groot, F. M. F.
Editors
Xu, R
Gao, Z
Chen, J
Yan, W
Advisors
Supervisors
Document Type
Part of book
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Abstract
X-ray spectroscopic techniques are important tools for the characterization of metal ions, clusters and nanoparticles in zeolites. A major limitation in X-ray absorption spectra is the intrinsic broadening due to core hole lifetime effects. Using high-energy resolution fluorescence detection (HERFD), this intrinsic broadening is removed, revealing new fine structure. In addition, we will show that the use of circular polarized X-rays can be a useful tool to determine the aggregation of metal ions. We present results obtained using these novel X-ray spectroscopic techniques, using Fe-ZSM-5 and Mn-ZSM-5 systems as showcases. The prospects for these techniques to become "standard" tools for catalysis's research will be discussed.
Keywords
COORDINATION, RESOLUTION, XANES, Taverne
Citation
Radu, D C, Glatzel, P, Heijboer, W M, Bitter, J H, Weckhuysen, B M & de Groot, F M F 2007, Mn and Fe ions and oxo clusters in ZSM-5 : pushing the limits of X-ray spectroscopy. in R Xu, Z Gao, J Chen & W Yan (eds), FROM ZEOLITES TO POROUS MOF MATERIALS: THE 40TH ANNIVERSARY OF INTERNATIONAL ZEOLITE CONFERENCE, PROCEEDINGS OF THE 15TH INTERNATIONAL ZEOLITE CONFERENCE. Studies in Surface Science and Catalysis, vol. 170, Elsevier Science, AMSTERDAM, pp. 796-799, 15th International Zeolite Conference, United Kingdom, 12/08/07. https://doi.org/10.1016/S0167-2991(07)80923-2, conference