Lens, Lotte, Yakushev, Alexander, Duellmann, Christoph Emanuel, Asai, Masato, Ballof, Jochen, Block, Michael, David, Helena May, Despotopulos, John, Di Nitto, Antonio, Eberhardt, Klaus et al (show 43 more authors)
(2018)
Online chemical adsorption studies of Hg, Tl, and Pb on SiO2 and Au surfaces in preparation for chemical investigations on Cn, Nh, and Fl at TASCA.
RADIOCHIMICA ACTA, 106 (12).
pp. 949-962.
Text
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Abstract
<jats:title>Abstract</jats:title> <jats:p>Online gas-solid adsorption studies with single-atom quantities of Hg, Tl, and Pb, the lighter homologs of the superheavy elements (SHE) copernicium (Cn, <jats:italic>Z</jats:italic>=112), nihonium (Nh, <jats:italic>Z</jats:italic>=113), and flerovium (Fl, <jats:italic>Z</jats:italic>=114), were carried out using short-lived radioisotopes. The interaction with Au and SiO<jats:sub>2</jats:sub> surfaces was studied and the overall chemical yield was determined. Suitable radioisotopes were produced in fusion-evaporation reactions, isolated in the gas-filled recoil separator TASCA, and flushed rapidly to an adjacent setup of two gas chromatography detector arrays covered with SiO<jats:sub>2</jats:sub> (first array) and Au (second array). While Tl and Pb adsorbed on the SiO<jats:sub>2</jats:sub> surface, Hg interacts only weakly and reached the Au-covered array. Our results contribute to elucidating the influence of relativistic effects on chemical properties of the heaviest elements by providing experimental data on these lighter homologs.</jats:p>
Item Type: | Article |
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Uncontrolled Keywords: | Homologs of superheavy elements, adsorption studies, gas phase chromatography of single atoms, thermochromatography, isothermal chromatography, physical preseparation |
Depositing User: | Symplectic Admin |
Date Deposited: | 14 Mar 2019 09:01 |
Last Modified: | 19 Jan 2023 01:11 |
DOI: | 10.1515/ract-2017-2914 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3029207 |