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An X‐ray diffractometer coupled with diffuse reflectance infrared Fourier transform spectroscopy and gas chromatography for in situ and in operando characterization: an innovative analytical laboratory instrument
Author(s) -
Braconnier Laure,
Clémençon Isabelle,
Legens Christèle,
Moizan Virginie,
Diehl Fabrice,
Pillière Henry,
Echegut P.,
De Sousa Meneses D.,
Schuurman Yves
Publication year - 2013
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889812042781
Subject(s) - diffractometer , diffuse reflectance infrared fourier transform , characterization (materials science) , fourier transform infrared spectroscopy , infrared , diffuse reflection , infrared spectroscopy , fourier transform , in situ , materials science , analytical chemistry (journal) , spectroscopy , thermal decomposition , decomposition , chemistry , optics , catalysis , nanotechnology , scanning electron microscope , chromatography , physics , composite material , organic chemistry , photocatalysis , quantum mechanics
In heterogeneous catalysis, chemical reactions take place at the surface of the material and can be influenced by its structure. To understand better the impact of the material surface and structure on catalytic properties, it is important to characterize them simultaneously. The association of X‐ray diffraction and diffuse reflectance infrared Fourier transform spectroscopy, combined in a single dedicated high‐temperature and high‐pressure reaction cell with an online gas chromatograph, could be the answer to this challenge. For the first time, such an analytical tool has been developed for laboratory applications. The use of this device is illustrated, and it is validated through the in situ study of the thermal decomposition of calcium oxalate.