Abstract
Differential heats of cumene adsorption at 293 K on Ca-, Sr- and Ba-substituted metakaolinites at surface coverages up to 0.1 have been measured on a Calvet microcalorimeter. The presence of two energetically different adsorption centers are shown to be determined by the nature of the exchanged cation; the adsorption heats decrease in the sequence Ba, Sr, Ca, Mg.
Abstract
С помощью микрокалориметра Кальве изсмерены дифференциальные теплоты адсорбции кумола при 293 К на Ca-, Sr, Ba-формах метакаолинита при степенях заполнения поверхности до 0.1. Показано наличие звух знергетически различных типов адсорбционных центров. Начальные теплоты адсорбции обусловлены приподой обменного катиона, причём теплоты адсорбции уменьшаются в ряду Ba, Sr, Ca, Mg.
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Goncharuk, V.V., Pankratiev, Y.D. & Shcherbatyuk, N.E. Calorimetric studies of aluminosilicate catalysts heats and entropies of cumene adsorption on cation substituted metakaolinite. React Kinet Catal Lett 16, 69–72 (1981). https://doi.org/10.1007/BF02077031
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DOI: https://doi.org/10.1007/BF02077031