48.XPSによる石炭有機硫黄形態の定量分析

抄録

X-ray photoelectron spectro scopy (XPS), which can provide information on the chemical state of elememts, was applied to the direct determination of organic sulfur forms in coal. Analysis data from model compounds were used to interpret sulfur 2p signals from coal in terms of the amounts of alkyl sulfide and thiophenic sulfur. The relation of XPS results to the carbon structure, such as aromatic carbon fraction, were discussed. Temperature programmed reduction analysis was carried out in order to compare the data.