Journal of Synchrotron Radiation

Volume 21, Part 1 (January 2014)

research papers

J. Synchrotron Rad. (2014). 21, 165-169    [ doi:10.1107/S1600577513026921 ]

A facile heating cell for in situ transmittance and fluorescence X-ray absorption spectroscopy investigations

P. An, C. Hong, J. Zhang, W. Xu and T. Hu

Abstract: A facile heating cell has been designed for in situ transmittance and fluorescence X-ray absorption spectroscopy (XAS) measurements up to 1273 K under vacuum or an inert atmosphere. These high temperatures are achieved using a tantalum heating element by ohmic heating. Because of the small specific heat capacity, the temperature can be changed in a matter of minutes from room temperature to high temperature. Furthermore, a commercial power controller was adapted to provide stable temperature control. The construction of the heat shielding system provides a novel approach to reducing the beam's path length and the cell's size. The cell is inexpensive and easy to build. Its performance was evaluated by in situ XAS measurements of the temperature-dependent structure of ceria nanocrystals. Some preliminary results for the structural mechanism in ceria nanocrystal redox applications are given.

Keywords: heating cell; in situ; transmittance and fluorescence; X-ray absorption spectroscopy.

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[ doi:10.1107/S1600577513026921/hf5239sup1.pdf ]
Figures S1 and S2 and the detailed temperature calibration method


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