High-temperature behavior of natural ferrierite: In-situ synchrotron X-ray powder diffraction study.

ABSTRACT: In this paper, we report the results of the first study focused on the thermal stability and dehydration dynamics of the natural zeolite mineral ferrierite. A sample from Monastir, Sardinia [(Na_0.56K_1.19Mg_2.02Ca_0.52Sr_0.14) (Al_6.89Si_29.04)O₇₂·17.86H₂O; a = 19.2241(3) Å; b = 14.1563(2) Å; c = 7.5106(1) Å, V = 2043.95(7) ų] was investigated by thermogravimetric analysis and in-situ synchrotron X-ray powder diffraction. Thermogravimetric data show that H₂O release begins already in the range 50-100 °C and is complete at ~600 °C. The results of the structure refinements performed in Immm space group by Rietveld analysis with data collected

SUBMITTER: Arletti R 

PROVIDER: S-EPMC6706080 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature