2018 journal article

Graphitization Behavior of Loblolly Pine Wood Investigated by in Situ High Temperature X-ray Diffraction

ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 6(7), 9113–9119.

By: S. Yoo n, C. Chung n, S. Kelley n & S. Park n

co-author countries: United States of America 🇺🇸
author keywords: Biomass graphite; Graphitization behavior; In situ X-ray diffraction; Electron energy loss spectroscopy; High temperature differential scanning calorimetry
Source: Web Of Science
Added: October 16, 2018

Graphitization is a complex process involving chemical and morphological changes, although the detailed mechanism for different starting materials is not well understood. In this work, in situ high temperature X-ray diffraction (XRD) and differential scanning calorimetry (DSC) were used to examine the phase transition occurring between 1000 and 1500 °C in loblolly pine wood-derived carbon materials. Electron energy loss spectroscopy (EELS) was also used to study these wood-derived carbon materials. XRD data showed the disappearance of a disordered carbon phase between 1300 and 1400 °C, followed by the formation of a crystalline graphitic phase between 1400 and 1500 °C. Lattice parameters and the crystal structure of the loblolly pine wood-derived graphite were systematically calculated from the empirical data. The presence of a large endothermic peak at 1500 °C in the DSC thermogram supported this observation. Selected area electron diffraction patterns showed the growth of graphitic crystallites after heat treatment. EELS spectra also supported the presence of a well-developed graphite structure.