Abstract by Matthew Dickson

Personal Infomation

Presenter's Name

Matthew Dickson

Degree Level


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Chemistry and Biochemistry

Faculty Advisor

Brian Woodfield


Zeolites below 10 K: Exploring coordination chemistry through low-temperature heat capacity


Zeolites, a class of porous crystalline materials, are used widely for sorption and catalysis, but their thermodynamics are poorly understood. While working to fill this gap we found Schottky-like anomalies below 10 K in the heat capacity curves of some forms of zeolite A. We attribute these anomalies to Stark splitting of the magnetic moment of extra-framework cations, which reside in the zeolite structure and provide catalytic activity. We have developed a method to extract information about cation coordination environments from fits of the anomalies. With this method, a single heat capacity measurement not only reveals a zeolite’s thermodynamic stability, but also offers insight into cation coordination and therefore catalytic properties.