Surface Sensitive Study To Determine the Reactivity of Soot with the Focus on the European Emission Standards IV and VI

摘要: Diesel soot (Euro IV and Euro VI) was investigated with spectroscopic methods such as near-edge X-ray absorption fine structure (NEXAFS) spectroscopy photoemission (XPS). C O K-edge NEXAFS show that structural disorder on the surface is accompanied by a higher amount of oxygen functional groups. O1s XPS results are discussed aim to elucidate nature species. The analysis data presented here allows postulation hypothetical for samples emitted diesel engines.