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

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• 作者：Manfred E. Schuster ; Michael Ha虉vecker ; Rosa Arrigo ; Raoul Blume ; Markus Knauer ; Natalia P. Ivleva ; Dang Sheng Su ; Reinhard Niessner ; Robert Schlo虉gl
• 刊名：Journal of Physical Chemistry A
• 出版年：2011
• 出版时间：March 31, 2011
• 年：2011
• 卷：115
• 期：12
• 页码：2568-2580
• 全文大小：1278K
• 年卷期：v.115,no.12(March 31, 2011)
• ISSN：1520-5215

文摘

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