Lack of Aggregation of Molecules on Ice Nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F15%3A00446583" target="_blank" >RIV/61388963:_____/15:00446583 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/15:00446583

Výsledek na webu

<a href="http://dx.doi.org/10.1021/acs.jpca.5b05368" target="_blank" >http://dx.doi.org/10.1021/acs.jpca.5b05368</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpca.5b05368" target="_blank" >10.1021/acs.jpca.5b05368</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Lack of Aggregation of Molecules on Ice Nanoparticles

Popis výsledku v původním jazyce

Multiple molecules adsorbed on the surface of nanosized ice particles can either remain isolated or form aggregates, depending on their mobility. Such (non)- aggregation may subsequently drive the outcome of chemical reactions that play an important rolein atmospheric chemistry or astrochemistry. We present a molecular beam experiment in which the controlled number of guest molecules is deposited on the water and argon nanoparticles in a pickup chamber and their aggregation is studied mass spectrometrically. The studied molecules (HCl, CH3Cl, CH3CH2CH2Cl, C6H5Cl, CH4, and C6H6) form large aggregates on argon nanoparticles. On the other hand, no aggregation is observed on ice nanoparticles. Molecular simulations confirm the experimental results; they reveal a high degree of aggregation on the argon nanoparticles and show that the molecules remain mostly isolated on the water ice surface. This finding will influence the efficiency of ice grain-mediated synthesis (e.g., in outer space) a

Název v anglickém jazyce

Lack of Aggregation of Molecules on Ice Nanoparticles

Popis výsledku anglicky

Multiple molecules adsorbed on the surface of nanosized ice particles can either remain isolated or form aggregates, depending on their mobility. Such (non)- aggregation may subsequently drive the outcome of chemical reactions that play an important rolein atmospheric chemistry or astrochemistry. We present a molecular beam experiment in which the controlled number of guest molecules is deposited on the water and argon nanoparticles in a pickup chamber and their aggregation is studied mass spectrometrically. The studied molecules (HCl, CH3Cl, CH3CH2CH2Cl, C6H5Cl, CH4, and C6H6) form large aggregates on argon nanoparticles. On the other hand, no aggregation is observed on ice nanoparticles. Molecular simulations confirm the experimental results; they reveal a high degree of aggregation on the argon nanoparticles and show that the molecules remain mostly isolated on the water ice surface. This finding will influence the efficiency of ice grain-mediated synthesis (e.g., in outer space) a

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry A

ISSN

1089-5639

e-ISSN

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Svazek periodika

119

Číslo periodika v rámci svazku

34

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

8991-8999

Kód UT WoS článku

000360415400004

EID výsledku v databázi Scopus

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