초록 |
The pyrolytic behavior is distinct from those of polymeric materials consisting of linear main chains, which are almost decomposed and vaporized as flue gases by heating. A β-sheet-rich protein, which is a linear polymer composed of peptide main chains, is a promising carbon precursor for state-of-the-art technologies. These exceptional pyrolytic behaviors of linear peptide main chains are not completely understood, but the thermo-denaturalization of proteins has been suggested. This study reports the pyrolytic process and development of a sp2 conjugated hexagon structure from β-sheet-rich proteins by heating. The β-sheet secondary structure plays an important role in the development of a highly stable and large sp2 conjugated hexagonal structure at the very low temperature of 350 ºC. These carbon materials were advanced into ordered graphitic structures with increasing heat-treatment temperature to 2800 ºC. |