Thermally expanded graphite from graphite nitrate cointercalated with ethyl formate and acetic acid: morphology and physicochemical properties

Abstract

Abstract Triple graphite nitrate cointercalation compound with ethyl formate and acetic acid was synthesized and used as a source of the thermally expanded graphite. The effect of the drying regime of the cointercalation compound on its surface morphology as well as ability to the thermal expansion was investigated. Complex studies of the microstructure, morphology, and quality of the obtained thermally expanded graphite by XRD, TEM, and Raman spectroscopy showed that as compared to the initial graphite TEG is less ordered, has a multilayer and insufficiently ordered structure without visible surface defects.