Kinetics of the interaction of water vapour with mineral dust and soot surfaces at T=298 K

作者: Sabine Seisel , Yu Lian , Thorsten Keil , Maxim E. Trukhin , Reinhard Zellner

DOI: 10.1039/B314568A

关键词: Saturation (chemistry)Water vaporReaction rate constantMineral dustAnalytical chemistryChemistryAdsorptionEnvironmental chemistryKineticsSootDesorption

摘要: The interaction of water vapour with mineral dust and soot surfaces has been studied at T=298 K using a Knudsen cell reactor. For the uptake on an adsorption constant kads=6.0±1.1 s−1, corresponding to coefficient γini=(4.2±0.7)×10−2 determined. found be reversible desorption rate kdes=(1.7±0.1)×10−3 s−1 γini=(3.6±2.0)×10−4 However, in this case was more complex rapid saturation surface sites simultaneously taking place. In order separate process, additional experiments D2O as gaseous reactant have performed.

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