Empirical relation between the adsorption properties of elements on gold surfaces and their volatility
Summary
A correlation is established between thermodynamic data for hypothetical macroscopic amounts of elements and experimentally accessible data on gold surfaces. The correlation between the experimentally determined standard adsorption enthalpies of elements on gold surfaces and their standard sublimation enthalpies is shown to be valid over a broad data range for various elements from light noble gases (Kr) up to heavy metals (Pb, Bi). This type of correlation is indispensable to derive thermodynamic data for macroscopic amounts of elements from results of adsorption chromatographic experiments with single atom amounts. It is also necessary to predict the behavior of single atoms from given or estimated thermochemical data. The conditions under which this correlation is valid are elaborated. Finally, predicted data for the elements 112 and 114 are used to link them to the corresponding sublimation or adsorption data. The obtained prediction intervals are of exceptional importance for the design of sophisticated experimental setups for the chemical investigation of transactinide elements on a single atom scale.
© by Oldenbourg Wissenschaftsverlag, München
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Artikel in diesem Heft
- Neptunium(IV) complexation by humic substances studied by X-ray absorption fine structure spectroscopy
- Small-scale actinide(III) partitioning processes in miniature hollow fibre modules
- Detection and quantification of Pu(III, IV, V, and VI) using a 1.0-meter liquid core waveguide
- Effect of ammonium, carbonate and fluoride concentration on the uranium recovery by resins
- Release of contaminant U(VI) from soils
- Catechol functionalized aminopropyl silica gel: synthesis, characterization and preconcentrative separation of uranium(VI) from thorium(IV)
- Characterization of Sr2+ uptake on natural minerals of kaolinite and magnesite using XRPD, SEM/EDS, XPS, and DRIFT
- Influence of the nutritional mechanism of fungi (mycorrhize/saprophyte) on the uptake of radionuclides by mycelium
- Semi-remote production of [64Cu]CuCl2 and preparation of high specific activity [64Cu]Cu-ATSM for PET studies
- Empirical relation between the adsorption properties of elements on gold surfaces and their volatility
