Relating reactivity to structure in cokes and carbon materials: Temperature-programmed oxidation and microscopy techniques

Sara Andreoli, Semih Eser

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A series of carbon materials and composites has been characterized by temperature-programmed oxidation (TPO), polarized light microscopy (PLM), scanning electron microscopy with energy dispersive X-ray spectroscopy (EDS), and temperature-programmed desorption coupled with mass-spectrometry analysis. For materials containing anisotropic carbons, a consistent relationship was found between oxidation reactivity and optical texture. Polarized-light microscopy in combination with TPO can help assessing the relationships between oxidation reactivity and optical texture of anisotropic carbons. Deconvolution of TPO profiles and PLM observations can effectively identify the individual components of multi-component carbon materials with important implications in structure-property relationships and their applications. For amorphous carbons with isotropic optical textures, TPO profiles were found to be influenced by the surface chemistry of the materials. It appears that the TPO technique under controlled conditions provides a rapid analysis of solids carbons with respect to their structure and properties. This is particularly useful for the analysis of carbon composites with multiple phases in combination with microscopic examination and elemental analysis using EDS.

Original languageEnglish (US)
Pages (from-to)362-371
Number of pages10
JournalCarbon
Volume168
DOIs
StatePublished - Oct 30 2020

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Fingerprint

Dive into the research topics of 'Relating reactivity to structure in cokes and carbon materials: Temperature-programmed oxidation and microscopy techniques'. Together they form a unique fingerprint.

Cite this