Revised kinetics in the droplet-train apparatus due to a wall loss

David R. Hanson; Masakazu Sugiyama; Akihiro Morita

doi:10.1021/jp035710g

Revised kinetics in the droplet-train apparatus due to a wall loss

David R. Hanson, Masakazu Sugiyama, Akihiro Morita

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

An equation for analyzing the kinetic results for the droplet-train apparatus with a wall loss is derived. We show that the presence of a radial concentration gradient due to loss on the flow reactor wall significantly affects the measured uptake coefficient γ_meas on droplets in the center of the reactor. For an efficient wall loss, γ_meas can be ∼60% less than that calculated without consideration of the loss on the wall. This revision of the kinetics for species with a wall loss leads to an increase in the uncertainty of the extracted gas-surface reaction probability for high water vapor pressure experimental conditions.

Original language	English
Pages (from-to)	3739-3744
Number of pages	6
Journal	Journal of Physical Chemistry A
Volume	108
Issue number	17
DOIs	https://doi.org/10.1021/jp035710g
Publication status	Published - 2004 Apr 29
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry

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AU - Morita, Akihiro

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AB - An equation for analyzing the kinetic results for the droplet-train apparatus with a wall loss is derived. We show that the presence of a radial concentration gradient due to loss on the flow reactor wall significantly affects the measured uptake coefficient γmeas on droplets in the center of the reactor. For an efficient wall loss, γmeas can be ∼60% less than that calculated without consideration of the loss on the wall. This revision of the kinetics for species with a wall loss leads to an increase in the uncertainty of the extracted gas-surface reaction probability for high water vapor pressure experimental conditions.

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Revised kinetics in the droplet-train apparatus due to a wall loss

Abstract

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