Structural evolution of anthracite coals during reactive ball milling

FUEL 236

Apurba Sakti, Department of Energy & Geo-Environmental Engineering, The Pennsylvania State University, 120 Hosler, University Park, PA 16802, Caroline E. Burgess Clifford, ceb7@psu.edu, The EMS Energy Institute, The Pennsylvania State University, 209 Academic Projects Bldg, University Park, PA 16802, and Angela D. Lueking, lueking@psu.edu, Department of Energy & Mineral Engineering, The Pennsylvania State University, 120 Hosler, University Park, PA 16802.
Recently we reported that ball milling of an anthracite coal in the presence of cyclohexene led to an unusual low temperature hydrogen evolution profile. After subsequent processing, nano-crystalline diamond (NCD) and nanographene ribbons were observed, and significant structural transformations of the carbon were noted. Here, we explore the role of various synthesis parameters (coal precursor, mineral content, added metal, hydrogen donating solvent) on the structural evolution of the carbon during the ball milling process. Materials are characterized via temperature programmed oxidation (TPO), X-ray diffraction (XRD), ultra-violet Raman (UVR) spectroscopy, solvent swelling, and gas adsorption.
 

Chemistry of Carbon Materials and Nanomaterials
8:30 AM-11:45 AM, Thursday, April 10, 2008 Morial Convention Center -- Rm. 240/241, Oral

Division of Fuel Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008