Results 211 to 220 of about 85,969 (268)
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Rare-earth hydrides and rare-earth oxides in and from thin films of rare-earth metals
Journal of the Less Common Metals, 1974Abstract Thin films of rare-earth metals always getter hydrogen very easily under ordinary conditions of preparation. It is shown from X-ray and electron diffraction experiments that the f.c.c. hydrides appear as single-crystal inclusions especially in the case of the yttric series (except for ytterbium).
M. Gasgnier +6 more
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Rare Earth Compounds. I. Rare Earth Polysulfides
Inorganic Chemistry, 1964The polysulfides of Tb, Ho, and Er were prepared for the first time. New information was obtained for a number of rare earth polysulfides. A larger phase region with a more complex crystal structure was found to exist. Sulfur to metal atom ratios of 1.7 to 2.0 were found for the lightest rare earths and 1.7 to 1.8 for the heavier rare earths.
S. A. Ring, Melvin Tecotzky
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Accounts of Chemical Research, 2017
Longstanding and important applications make use of the chemical and physical properties of both rare earth metals and polyoxometalates of early transition metals. The catalytic, optical, and magnetic features of rare earth metal ions are well-known, as are the reversible multielectron redox and photoredox capabilities of polyoxomolybdates and ...
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Longstanding and important applications make use of the chemical and physical properties of both rare earth metals and polyoxometalates of early transition metals. The catalytic, optical, and magnetic features of rare earth metal ions are well-known, as are the reversible multielectron redox and photoredox capabilities of polyoxomolybdates and ...
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2017
This chapter mainly focuses on the fundamental principles of rare earth luminescence, which are important for the investigation of the photofunctional rare earth hybrid materials. It introduces the rare earth elements and their physiochemical properties, the atomic spectral term and energy level transition of rare earth ions associated with their ...
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This chapter mainly focuses on the fundamental principles of rare earth luminescence, which are important for the investigation of the photofunctional rare earth hybrid materials. It introduces the rare earth elements and their physiochemical properties, the atomic spectral term and energy level transition of rare earth ions associated with their ...
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Science, 2014
Soil scientists are tracking down rare and endangered soils in a quest to document—and preserve—“pedodiversity.”
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Soil scientists are tracking down rare and endangered soils in a quest to document—and preserve—“pedodiversity.”
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Thermal conversion in air of rare-earth fluorides to rare-earth oxyfluorides and rare-earth oxides
Journal of Nuclear Materials, 2022Saehwa Chong, Brian J. Riley
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Nature, 1927
IN searching for evidence that would enable a decision to be made as to the exact distribution of the electrons responsible for the series of fifteen rare earth elements from lanthanum to lutecium, the colour of their salts appears to be of prime importance, particularly as it is known that colour is intimately associated with movements of electrons in
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IN searching for evidence that would enable a decision to be made as to the exact distribution of the electrons responsible for the series of fifteen rare earth elements from lanthanum to lutecium, the colour of their salts appears to be of prime importance, particularly as it is known that colour is intimately associated with movements of electrons in
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Journal of the American Ceramic Society, 1942
ABSTRACT Cerium oxide in glasses is the strongest oxidizing agent with respect to iron. In combination with neodymium oxide, which compensates the remaining hue, it represents the ideal decolorizer. Cerium oxide absorbs in the ultraviolet without affecting visible transmission.
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ABSTRACT Cerium oxide in glasses is the strongest oxidizing agent with respect to iron. In combination with neodymium oxide, which compensates the remaining hue, it represents the ideal decolorizer. Cerium oxide absorbs in the ultraviolet without affecting visible transmission.
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Rare‐Earth Incorporated Alloy Catalysts: Synthesis, Properties, and Applications
Advanced Materials, 2021Sandra Elizabeth Saji +2 more
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