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The effect of temperature on the magnetic susceptibility of vanadium pentoxide systems

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Summary

The magnetic susceptibilities of certain vanadium pentoxide systems supported by kieselgur have been determined in the temperature interval 30° to 400° C. The plot of reciprocal susceptibility against temperature for all the systems studied indicates sudden deflections at temperatures which are about 150° lower than those of optimum catalytic activity. It has been suggested that these points may mark the temperatures of commencement of structural changes which may be responsible for the activity of these catalysts.

Zusammenfassung

Die magnetische Susceptibilität gewisser Vanadium-Pentoxyd-Systeme mit Kieselgur als Träger wurden im Temperaturintervall zwischen 30 und 400° C bestimmt. Die Auftragung der reziproken Susceptibilität gegen die Temperatur zeigt für alle untersuchten Systeme plötzliche Knicke bei Temperaturen, die etwa 150° niedriger liegen als die optimale katalytische Aktivität. Es wird vermutet, daß diese Knickpunkte die Temperaturen des Beginns von Strukturänderungen zeigen, die für die Aktivität dieser Katalysatoren verantwortlich sind.

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Author notes

  1. V. Ramakrishna

    Present address: Metallurgy Dept., M.I.T., Cambridge, Mass., USA

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  1. General Chemistry Dept., Indian Institute of Science, Bangalore, India

    V. Ramakrishna

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  1. V. Ramakrishna
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Ramakrishna, V. The effect of temperature on the magnetic susceptibility of vanadium pentoxide systems. Kolloid-Zeitschrift 173, 35–38 (1960). https://doi.org/10.1007/BF01513624

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  • DOI: https://doi.org/10.1007/BF01513624

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