Neodymium Catalysts for Polymerization of Dienes, Vinyl Monomers, and ε-Caprolactone

2021 ◽  
Author(s):  
Mihaela C. Stefan ◽  
Erika Calubaquib ◽  
Hanghang Wang ◽  
John Michael Orolaza Cue ◽  
Justin T Miller ◽  
...  
Keyword(s):  
Rare Earth ◽  
Complex Structure ◽  
Vinyl Monomers ◽  
Coordination Polymerization ◽  
The Rare Earth

Among the rare-earth catalysts, neodymium-based catalysts are systematically investigated due to their efficiency and versatility. Still, the correlation between the complex structure and the catalytic coordination polymerization is not yet...

Influence of Sintering Temperature on the Thermoluminescence Spectra of MgSO4 Doped with RE(Tm,Dy) and Mn

2014 ◽  
Vol 664 ◽  
pp. 57-61
Author(s):  
Jing Yuan Guo ◽  
Qiang Tang ◽  
Li Gao ◽  
Ting Ting Lan ◽  
Chun Xiang Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Low Temperature ◽  
Sintering Temperature ◽  
Complex Structure ◽  
Rare Earth Ions ◽  
3 Dimensional ◽  
Luminescence Process ◽  
Co Doped ◽  
The Rare Earth

In this paper, MgSO4:Dy,MgSO4:Tm and MgSO4:Mn phosphors are prepare by high temperature solid state reaction. The MgSO4:Dy or MgSO4:Tm powder are mixed and sintered with MgSO4:Mn respectively to obtain the co-doped MgSO4:Dy,Mn and MgSO4:Tm,Mn phosphors. The 3-dimensional thermoluminescence spectra of these two phosphors under different sintering temperature are measured.Results show that when the sintering temperature is below 800°C, Dy, Tm and Mn ions emissions are independent. However, when the sintering temperature was over 800°C, the emission peak of Mn becomes weaker, and so do the low temperature peaks of Dy and Tm, while the high temperature peaks of Dy and Tm become stronger. This indicated that the defect complex structure in the formation of the thermoluminescence material depends on the sintering temperature. As the sintering temperature rises, more and more Mn ions combine with the rare earth ions. Therefore, the luminescence process of the energy transfer of Mn ions to the rare earth ions can be observed and the suppression to low temperature peaks of Tm and Dy, and also shown in spectra.

Flame spectra of the rare-earth elements*

1962 ◽  
Vol 18 (4) ◽  
pp. 1127-1153
Author(s):  
V FASSEL ◽  
R CURRY ◽  
R KNISELEY
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The Rare Earth

Some comments on the reduced alpha width systematics in the rare-earth region

1981 ◽  
Vol 6 ◽  
pp. 421-429
Author(s):  
W. Kusch
Keyword(s):  
Rare Earth ◽  
The Rare Earth

Thermochemical properties and trends in the rare earth alloy systems

1997 ◽  
Vol 94 ◽  
pp. 905-918 ◽  
Author(s):  
R Ferro ◽  
G Borzone
Keyword(s):  
Rare Earth ◽  
Thermochemical Properties ◽  
Rare Earth Alloy ◽  
Alloy Systems ◽  
The Rare Earth

Peculiarities of the synthesis, structure and properties of ET radical cation salts prepared in the presence of the rare-earth metal complex anions

2004 ◽  
Vol 114 ◽  
pp. 527-528 ◽  
Author(s):  
N. D. Kushch ◽  
A. V. Kazakova ◽  
L. I. Buravov ◽  
A. N. Chekhlov ◽  
E. B. Yagubskii
Keyword(s):  
Rare Earth ◽  
Metal Complex ◽  
Radical Cation ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Structure And Properties ◽  
Rare Earth Metal Complex ◽  
Radical Cation Salts ◽  
Complex Anions ◽  
The Rare Earth

Physico-chemical properties of the rare-earth metals, scandium, and yttrium

1963 ◽  
Vol 79 (2) ◽  
pp. 263-293 ◽  
Author(s):  
E.M. Savitskii ◽  
V.F. Terekhova ◽  
O.P. Naumkin
Keyword(s):  
Rare Earth ◽  
Rare Earth Metals ◽  
Chemical Properties ◽  
Physico Chemical ◽  
The Rare Earth

DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION

2018 ◽  
Vol 17 (8) ◽  
pp. 2001-2009
Author(s):  
Tatjana Juzsakova ◽  
Akos Redey ◽  
Le Phuoc Cuong ◽  
Zsofia Kovacs ◽  
Tamas Frater ◽  
...  
Keyword(s):  
Rare Earth ◽  
Red Mud ◽  
Rare Earth Metals ◽  
The Rare Earth

The rare earth-carbon systems

1957 ◽  
Author(s):  
Karl Albert Gschneidner
Keyword(s):  
Rare Earth ◽  
The Rare Earth
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