Understanding negative thermal expansion and ‘trap door’ cation relocations in zeolite rho

Barbara A. Reisner; Yongjae Lee; Jonathan C. Hanson; Glover A. Jones; John B. Parise; David R. Corbin; Brian H. Toby; Andrea Freitag; John Z. Larese; Volker Kahlenberg

doi:10.1039/B006929I

Understanding negative thermal expansion and ‘trap door’ cation relocations in zeolite rho

Barbara A. Reisner,†^a Yongjae Lee,^b Jonathan C. Hanson,^c Glover A. Jones,^d John B. Parise,*^b David R. Corbin,^d Brian H. Toby,^a Andrea Freitag,^c John Z. Larese^c and Volker Kahlenberg^b

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* Corresponding authors

^a NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, USA.
E-mail: John.Parise@sunysb.edu

^b Geosciences, State University of New York, Stony Brook, NY, USA

^c Chemistry Department, Brookhaven National Laboratory, Upton, NY, USA

^d Central Research and Development, Du Pont Company, Experimental Station, P.O.Box 80262, Wilmington, DE, USA

^e Chemistry Departments, State University of New York, Stony Brook, NY, USA

^f Fachbereich Geowissenschaften (Kristallographie), Universität Bremen, Klagenfurter Strasse, Bremen, Germany

Abstract

In situ time-resolved synchrotron X-ray and neutron powder diffraction studies indicate that the negative thermal expansion and ‘trap door’ cation relocations observed in zeolite rho result from water-mediated chemical changes that occur during dehydration.

Chemical Communications

Understanding negative thermal expansion and ‘trap door’ cation relocations in zeolite rho

Abstract

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Understanding negative thermal expansion and ‘trap door’ cation relocations in zeolite rho

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