Experimental study of the reaction of O- ions with CO2 molecules with different ternary gases at temperatures relevant to the martian ionosphere

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00551263" target="_blank" >RIV/61388955:_____/21:00551263 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10440819
Result on the web
<a href="http://hdl.handle.net/11104/0326701" target="_blank" >http://hdl.handle.net/11104/0326701</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.icarus.2020.114057" target="_blank" >10.1016/j.icarus.2020.114057</a>

Result language
angličtina
Original language name
Experimental study of the reaction of O- ions with CO2 molecules with different ternary gases at temperatures relevant to the martian ionosphere
Original language description
The reaction of oxygen anions with carbon dioxide molecules is considered to be the main channel of CO3- ion formation in the Martian ionosphere. Comprehensive theoretical ion-chemical models of the Martian ionosphere require experimental data on the reactivity of negative ions with neutral gases under relevant ambient temperature and pressure conditions. The temperature dependence of the rate of the ternary reaction of O- with CO2 has been measured at temperatures relevant to the ionosphere of Mars using a VT-SIFT instrument using both helium and nitrogen as the carrier (ternary) gases. The ternary rate coefficient of the reaction was measured equal to (1.24 +/- 0.06) x 10(-28) (300/T)(2.86 +/- 0.28) and (2.29 +/- 0.05) x 10(-28 )(300/T) (2.06 +/- 0.13) cm(6)s(-1) for He and N-2 carrier gas, respectively, in the temperature range of 230-340 K. The k(3) is over two times higher in nitrogen than in helium and has a less strong inverse temperature dependence.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - 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/GA17-14200S" target="_blank" >GA17-14200S: Experimental and theoretical study of the chemical processes in the planetary atmospheres</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)