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Nanocrystalline and stacking-disordered β-cristobalite AlPO4 chemically stabilized at room temperature: synthesis, physical characterization, and X-ray powder diffraction data

Published online by Cambridge University Press:  07 June 2017

B. Peplinski ,
B. Adamczyk ,
P. Formanek ,
C. Meyer ,
O. Krüger ,
H. Scharf ,
S. Reinsch ,
M. Ostermann ,
M. Nofz  and
C. Jäger
...Show all authors
B. Peplinski*
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
B. Adamczyk
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
P. Formanek
Affiliation:
Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany
C. Meyer
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
O. Krüger
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
H. Scharf
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
S. Reinsch
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
M. Ostermann
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
M. Nofz
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
C. Jäger
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
C. Adam
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
F. Emmerling
Affiliation:
BAM Federal Institute for Materials Research and Testing, Berlin, Germany
*
a)Author to whom correspondence should be addressed. Electronic mail: burkhard_peplinski@web.de
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Abstract

This paper reports the first successful synthesis and the structural characterization of nanocrystalline and stacking-disordered β-cristobalite AlPO4 that is chemically stabilized down to room temperature and free of crystalline impurity phases. Several batches of the title compound were synthesized and thoroughly characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy, selected area electron diffraction, energy dispersive X-ray spectroscopy mapping in SEM, solid-state 31P nuclear magnetic resonance (31P-NMR) spectroscopy including the TRAPDOR method, differential thermal analysis (DTA), gas-sorption methods, optical emission spectroscopy, X-ray fluorescence spectroscopy, and ion chromatography. Parameters that are critical for the synthesis were identified and optimized. The synthesis procedure yields reproducible results and is well documented. A high-quality XRD pattern of the title compound is presented, which was collected with monochromatic copper radiation at room temperature in a wide 2θ range of 5°–100°.

Keywords

stabilization of high-temperature phase at RTnanocrystalline AlPO4β-cristobalite structure typehigh-cristobalite formcristobalite formaluminum phosphate
Type
Technical Articles
Information
Powder Diffraction , Volume 32 , Supplement S1 , September 2017 , pp. S193 - S200
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Copyright
Copyright © International Centre for Diffraction Data 2017 

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