In:
Radiochimica Acta, Walter de Gruyter GmbH, Vol. 106, No. 12 ( 2018-11-27), p. 949-962
Abstract:
Online gas-solid adsorption studies with single-atom quantities of Hg, Tl, and Pb, the lighter homologs of the superheavy elements (SHE) copernicium (Cn, Z =112), nihonium (Nh, Z =113), and flerovium (Fl, Z =114), were carried out using short-lived radioisotopes. The interaction with Au and SiO 2 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 2 (first array) and Au (second array). While Tl and Pb adsorbed on the SiO 2 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.
Type of Medium:
Online Resource
ISSN:
2193-3405
,
0033-8230
DOI:
10.1515/ract-2017-2914
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2018
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