Results 31 to 40 of about 25,259 (119)

Crystal structure of pentakis(ethylenediamine-κ2N,N′)lanthanum(III) trichloride–ethylenediamine–dichloromethane (1/1/1)

open access: yesActa Crystallographica Section E, 2014
We report here the crystal structure of a ten-coordinate lanthanum(III) metal coordinated by five bidentate ethylenediamine ligands, [La(C2H8N2)5]Cl3·C2H8N2·CH2Cl2. One free ethylenediamine molecule and three Cl− anions are also located in the asymmetric
Hope T. Sartain   +2 more
doaj   +1 more source

Electrophysical characteristics of germanium MIS structures with rare-earth element fluorides

open access: yesФизика волновых процессов и радиотехнические системы, 2021
The electrical properties of MIS structures with rare-earth element fluorides on germanium substrates were studied to analyze the possibility of using these materials as gate dielectrics of devices.
Natalia V. Sachuk   +1 more
doaj   +1 more source

Mining Situation and Geochemistry Characteristics of Three Ion Adsorption Rare-Earth Deposit in Guangdong Province

open access: yesYankuang ceshi, 2014
Guangdong has abundant kinds of rare earth element resources. The resource which could satisfy the industry exploitation is only the ion adsorption type of rare earth ores.
HUANG Hua-gu   +3 more
doaj   +2 more sources

Quantitative analysis of rare earth elements in Mg–Zn–RE(Ce, Y, Gd)–Zr alloy

open access: yesMaterials Research Express, 2022
The solid solution amount of rare earth elements and the mass fraction of compounds were measured by low-temperature phase separation technology, the existing forms of rare earth elements in ZK-RE(Ce, Y, Gd) alloy were quantitatively studied, and the ...
Yuguang Li   +4 more
doaj   +1 more source

Rare Earth Element Contents and Occurrence Forms in Weathering Crust Ion Adsorption Rare Earth Ore

open access: yesYankuang ceshi
The weathering crust ion adsorption type rare earth deposit has the characteristics of complete REE types, low radioactivity, high heavy rare earth contents, and easy mining, making it an extremely important type of rare earth deposit.
Xilian XIAO   +5 more
doaj   +1 more source

Coal ash resources and potential for rare earth element production in the United States

open access: yesInternational Journal of Coal Science & Technology
The renewable energy industry is heavily reliant on rare earth elements, underscoring the need to develop resources and production. The objective of this work was to estimate coal ash resources and potential for extraction of rare earth elements using ...
Robert C. Reedy   +6 more
doaj   +1 more source

Rare earth element dynamics in the deep subsurface of a high-energy beach

open access: yesFrontiers in Marine Science
Subterranean estuaries of high-energy beaches are considered as dynamic biogeochemical reactors. The advective porewater flow and associated transport of organic and inorganic constituents reach deep into the subsurface.
Magali Roberts   +11 more
doaj   +1 more source

Evaluation on Delineation Methods for Ion-adsorption Type Rare Earth Ore Body

open access: yesYankuang ceshi, 2013
Ion-adsorption type rare earth ore is unique and a valuable resource in China. Total rare earth oxides (SREO) and leaching quantities of rare earth oxides (SREO) are important indices of evaluation of the scope and value of rare earth resources.
DENG Mao-chun   +6 more
doaj  

Rare Earth Element Concentrations in Brazilian Benchmark Soils

open access: yesRevista Brasileira de Ciência do Solo
: Studies regarding background concentrations of rare earth elements (REEs) are scarce and have mainly focused on a limited number of soil types from the northern hemisphere.
Ygor Jacques Agra Bezerra da Silva   +4 more
doaj   +1 more source

Effect of Rare Earth Oxide on Electrochemical behaviors of Ni-MH Battery on New Energy Vehicle

open access: yesChemical Engineering Transactions, 2018
Ni-MH Battery used in New Energy Vehicle (NEV) often presents poor electrochemical behaviors under high temperature condition. In view of this gap, this paper explores electrochemical behaviors of such Ni-MH battery that contains rare-earth elements (Y ...
Mengxiong Lu
doaj   +1 more source

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