About: Rate Acceleration of the Heterogeneous Reaction of Ozone with a Model Alkene at the Air-Ice Interface at Low Temperatures

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About: Rate Acceleration of the Heterogeneous Reaction of Ozone with a Model Alkene at the Air-Ice Interface at Low Temperatures Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://pubs.acs.org/doi/abs/10.1021/es304812t
Description	The kinetics of the ozonation reaction of 1,1-diphenylethylene (DPE) on the surface of ice grains (also called %22artificial snow%22), produced by shock-freezing of DPE aqueous solutions or DPE vapor-deposition on pure ice grains, was studied in the temperature range of 268 to 188 K. A remarkable and unexpected increase in the apparent ozonation rates with decreasing temperature was evaluated using the Langmuir-Hinshelwood and Eley-Rideal kinetic models, and by estimating the apparent specific surface area of the ice grains. We suggest that an increase of the number of surface reactive sites, and possibly higher ozone uptake coefficients are responsible for the apparent rate acceleration of DPE zonation at the air ice interface at lower temperatures. The increasing number of reactive sites is probably related to the fact that organic molecules are displaced more to the top of a disordered interface (or quasi liquid) layer on the ice surface, which makes them more accessible to the gas phase reactants. The kinetics of the ozonation reaction of 1,1-diphenylethylene (DPE) on the surface of ice grains (also called %22artificial snow%22), produced by shock-freezing of DPE aqueous solutions or DPE vapor-deposition on pure ice grains, was studied in the temperature range of 268 to 188 K. A remarkable and unexpected increase in the apparent ozonation rates with decreasing temperature was evaluated using the Langmuir-Hinshelwood and Eley-Rideal kinetic models, and by estimating the apparent specific surface area of the ice grains. We suggest that an increase of the number of surface reactive sites, and possibly higher ozone uptake coefficients are responsible for the apparent rate acceleration of DPE zonation at the air ice interface at lower temperatures. The increasing number of reactive sites is probably related to the fact that organic molecules are displaced more to the top of a disordered interface (or quasi liquid) layer on the ice surface, which makes them more accessible to the gas phase reactants. (en)
Title	Rate Acceleration of the Heterogeneous Reaction of Ozone with a Model Alkene at the Air-Ice Interface at Low Temperatures Rate Acceleration of the Heterogeneous Reaction of Ozone with a Model Alkene at the Air-Ice Interface at Low Temperatures (en)
skos:prefLabel	Rate Acceleration of the Heterogeneous Reaction of Ozone with a Model Alkene at the Air-Ice Interface at Low Temperatures Rate Acceleration of the Heterogeneous Reaction of Ozone with a Model Alkene at the Air-Ice Interface at Low Temperatures (en)
skos:notation	RIV/00216224:14310/13:00066641!RIV14-MSM-14310___
http://linked.open...avai/predkladatel	Přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED0001/01/01), P(GAP503/10/0947), P(LM2011028), S
http://linked.open...iv/cisloPeriodika	13
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Ray, Debajyoti Klán, Petr Malongwe, Joseph K'ekuboni
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	101513
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/13:00066641
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Photochemistry; Ice; Snow; Ozone (en)
http://linked.open.../riv/klicoveSlovo	Ice Photochemistry Ozone Snow
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[9EEB95C274C4]
http://linked.open...i/riv/nazevZdroje	Environmental Science and Technology
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	RECETOX – National research infrastructure for toxic compounds in the environment CETOCOEN Implications of photochemical activity of organic pollutants in polar regions
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	47
http://linked.open...iv/tvurceVysledku	Klán, Petr Ray, Debajyoti Malongwe, Joseph K'ekuboni
http://linked.open...ain/vavai/riv/wos	000321521400009
issn	0013-936X
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1021/es304812t
http://localhost/t...ganizacniJednotka	14310

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