Results 251 to 260 of about 493,260 (275)
Some of the next articles are maybe not open access.

Molecular Polyarsenides of the Rare‐Earth Elements

Angewandte Chemie International Edition, 2015
AbstractReduction of [Cp*Fe(η5‐As5)] with [Cp′′2Sm(thf)] (Cp′′=η5‐1,3‐(tBu)2C5H3) under various conditions led to [(Cp′′2Sm)(μ,η4:η4‐As4)(Cp*Fe)] and [(Cp′′2Sm)2As7(Cp*Fe)]. Both compounds are the first polyarsenides of the rare‐earth metals. [(Cp′′2Sm)(μ,η4:η4‐As4)(Cp*Fe)] is also the first d/f‐triple decker sandwich complex with a purely inorganic ...
Arleth, Nicholas   +6 more
openaire   +3 more sources

Biological leaching of rare earth elements

World Journal of Microbiology and Biotechnology, 2020
The distinctive physico-chemical features of rare earth elements (REEs) have led to an increase in demand by the global market due to their multiple uses in industrial, medical and agricultural implementations. However, the scarcity of REEs and the harsh eco-unfriendly leaching processes from primary sources beside obliviousness to their recycling from 
openaire   +2 more sources

Rare Earth Elements

1987
Intermetallic phases between tungsten and rare earth elements have only been found for the W-Ce system. Two phases exist in this system, which are formed by peritectic reactions; one of them is believed to be W2Ce, “Elliott” (1965), p. 314.
Wolfgang Kurtz, Hans Vanecek
openaire   +1 more source

The rare earth elements

1992
They fall into two well-defined groups, the first occurring naturally in reasonably large quantities, the second being radioactive and very largely man-made short life elements. A third group resemble the rare earths to such an extent that they are always classified together.
openaire   +1 more source

Nanopore discrimination of rare earth elements

Nature Nanotechnology
Rare earth elements (REEs), including scandium, yttrium and lanthanides, are strategic resources with unique electric, luminescent and magnetic properties. However, owing to their highly similar physiochemical properties, the identification and separation of all REEs are challenging.
Wen Sun   +8 more
openaire   +2 more sources

Rare Earth Elements

2005
Zhengyi Hu   +3 more
openaire   +1 more source

The Rare Earth Elements

Abstract The book ends with a review of how the rare earth elements were discovered and some of the many uses that they are being put to. The 17 elements that comprise the rare earths have become extremely important and sought after commercially because of their many high-tech applications, such as in cell phones, electric vehicles, and ...
openaire   +1 more source

Home - About - Disclaimer - Privacy