Temperature- and atmosphere-controlled drift spectra of H3+nPMo12-nVnO40-type heteropolyacids with Keggin structure

Miroslaw Handke; K. Bruckman; Czeslawa Paluszkiewicz; W. Paw

doi:10.1117/12.56384

1 March 1992 Temperature- and atmosphere-controlled drift spectra of H3+nPMo12-nVnO40-type heteropolyacids with Keggin structure

Miroslaw Handke, K. Bruckman, Czeslawa Paluszkiewicz, W. Paw

Author Affiliations +

Proceedings Volume 1575, 8th Intl Conf on Fourier Transform Spectroscopy; (1992) https://doi.org/10.1117/12.56384
Event: Eighth International Conference on Fourier Transform Spectroscopy, 1991, Lubeck-Travemunde, Germany

Abstract

Heteropolyacids (HPAs) are compounds widely applied in different catalytic processes. They have been used as acid catalysts and also as oxidation catalysts at elevated temperatures. Therefore, from the catalytic point of view it is important to know the thermal behavior of these compounds under reduction and oxidation conditions as well. Although several studies on the thermal properties have been reported, also by means of in situ IR spectroscopy, little is known about decomposition of HPAs, in controlled atmosphere. In this study we examined in situ by DRIFT spectroscopy the solid state heteropolyacids at temperature range 295 K - 723 K in both dry nitrogen and oxygen atmospheres.

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Miroslaw Handke, K. Bruckman, Czeslawa Paluszkiewicz, and W. Paw "Temperature- and atmosphere-controlled drift spectra of H3+nPMo12-nVnO40-type heteropolyacids with Keggin structure", Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); https://doi.org/10.1117/12.56384

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