lanthanides


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lanthanides

Elements with an atomic number of 57 through 71. Also called rare-earth elements.
References in periodicals archive ?
In this work LIBS is employed for the quantitative determination of lanthanides (Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Sm, Tb, Tm and Yb) in vertebrate fossil samples comprising teeth, disarticulated complete or fragmented bones, eggshell fragments, and coprolites of dinosaurs, mammals and crocodiles.
Presenting findings from their research on lanthanide glasses and materials, physicists and material scientists cover tunable and white light generation in lanthanide doped novel fluorophosphate glasses, lanthanides co-doped phosphate glasses for broadband applications, lanthanum doped borophosphate glasses for nuclear waste immobilization, crystallization studies of cerium containing iron borophosphate glasses/glass-ceramics, spectroscopic properties and energy transfer parameters of Nd3+ and Sm3+ doped lithium borate glasses, the relationship between the structural modification and luminescence efficiencies of ZnF2-Mo-TeO2 glasses doped with Ho3+ and Er3+ ions, and luminescence and energy transfer phenomena in lanthanide ions doped phosphor and glassy materials.
Most work until now has focussed on lanthanides, but there has been an increasing realisation that organotransition metal derived SMMs may offer significant benefits in terms of their ability to stabilise different electronic environments as a result of being able to adopt unique coordination geometries.
New and Hybrid Materials Consisting of Transition Metals and Lanthanides for Optical and Electronic Applications" by the principal researcher Dr.
Rare earth elements (REEs) also known as lanthanides are a group of 15 metals with similar properties which are used for a broad spectrum of applications in industry agriculture and medicine.
We have seen some possibilities for solvent-free separation of important mineral mixtures, not only for the basic metals copper, zinc, lead but also for lanthanides and more noble metals.
There is an additional double row below the main table, the lanthanides and actinides, which are actually fifteen columns of Periods 6 and 7 which have been cut out of the main table to save horizontal space.
The rare earths metals or elements typically include scandium (Sc-21), yttrium (Y-39) and the lanthanides - lanthanum (La-57), cerium (Ce-58), praseodymium (Pr-59), neodymium (Nd-60), promethium (Pm-61), samarium (Sm-62), europium (Eu-63), gadolinium (Gd-64), terbium (Tb-65), dysprosium (Dy-66), holmium (Ho-67), erbium (Er-68), thulium (Tm-69), ytterbium (Yb-70), and lutetium (Lu-71).
A couple of features that could be improved were the elements of repetitiveness when considering the lanthanides and actinides.
As it can be seen from the Figure 1, it is impossible to explain the accumulation of neodymium, terbium, and holmium in hydrocarbon media manifested through the differentiated positive anomalies of the lanthanides in the REE composition merely by their trivalent state in geochemical processes.
These aspects include the identification of certain chemical components within the artefacts and the isotope analysis of Strontium and Lanthanides.