Dissociative ionization dynamics of dielectric gas C3F7CN

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F19%3A00511868" target="_blank" >RIV/61388955:_____/19:00511868 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22340/19:43918181

Result on the web

<a href="http://hdl.handle.net/11104/0302115" target="_blank" >http://hdl.handle.net/11104/0302115</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c9cp02188d" target="_blank" >10.1039/c9cp02188d</a>

Result language

angličtina

Original language name

Dissociative ionization dynamics of dielectric gas C3F7CN

Original language description

Fluoronitrile C3F7CN is a promising candidate for the replacement of SF6 dielectric gas in high-voltage insulation. We present a combined experimental and theoretical study on its ionization dynamics probed in the 0-100 eV energy range. We exploited the total ion collection technique to determine the absolute ionization cross section, mass spectrometry to determine the fragment branching ratios and ab initio nonadiabatic molecular dynamics to simulate the ionization process. The latter two approaches showed the dominating presence of the CF3+ cation over the whole electron energy range. The Binary-Encounter-Bethe (BEB) approximation reproduces experimental cross sections very well and reveals that the ionization from a surprisingly large number of orbitals contributes almost equally to the processes. We show that the initially populated cation excited states undergo an ultrafast internal conversion to the ground state where the dissociation into a single decay channel takes place. Implications for the use of C3F7CN as an insulating material are discussed.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/TH03020063" target="_blank" >TH03020063: Substitute for SF6 gas in switchgears</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Name of the periodical

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

—

Volume of the periodical

21

Issue of the periodical within the volume

30

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

16451-16458

UT code for WoS article

000477987200004

EID of the result in the Scopus database

2-s2.0-85070786787