scholarly journals In situ X-ray absorption fine structure study on the polymerization of isoprene assisted by Nd-based ternary catalysts

RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14413-14421 ◽  
Author(s):  
H. L. Guo ◽  
J. F. Bi ◽  
Q. Y. Wu ◽  
J. Y. Wang ◽  
W. Q. Shi ◽  
...  
Keyword(s):  
Fine Structure ◽  
Catalytic Mechanism ◽  
Structure Study ◽  
X Ray ◽  
Structure Information ◽  
Absorption Fine ◽  
Ternary Catalysts ◽  
X Ray Absorption ◽  
Ternary Catalyst

Polymerization processes of isoprene catalyzed by four catalysts with different alkylaluminums were detected by in situ XAFS technique. The catalytic mechanism of the neodymium-based ternary catalyst was discussed based on the structure information.

Fluorescence Extended X-Ray Absorption Fine Structure Study on Local Structures of Rare-Earth-Doped InGaGdN

2016 ◽  
Vol 1133 ◽  
pp. 429-433
Author(s):  
Siti Nooraya Mohd Tawil ◽  
Shuichi Emura ◽  
Daivasigamani Krishnamurthy ◽  
Hajime Asahi
Keyword(s):  
Fine Structure ◽  
Rare Earth ◽  
Nearest Neighbor ◽  
Structure Study ◽  
Edge Structure ◽  
X Ray ◽  
Local Structures ◽  
Absorption Fine ◽  
X Ray Absorption

Local structures around gadolinium atoms in rare-earth (RE)-doped InGaGdN thin films were studied by means of fluorescence extended X-ray absorption fine structure (EXAFS) measured at the Gd LIII-edges. The samples were doped with Gd in-situ during growth by plasma-assisted molecular beam epitaxy (PAMBE). Gd LIII-edge EXAFS signal from the GaGdN, GdN and Gd foil were also measured as reference. The X-ray absorption near edge structure (XANES) spectra around Gd LIII absorption edge of InGaGdN samples observed at room temperature indicated the enhancement of intensities with the increase of Gd composition. Further EXAFS analysis inferred that the Gd atoms in InGaN were surrounded by similar atomic shells as in the case of GaGdN with the evidence indicating majority of Gd atoms substituted into Ga sites of InGaGdN. A slight elongation of bond length for the 2nd nearest-neighbor (Gd–Ga) of sample with higher Gd concentration was also observed.

In Situ Grazing-Incidence Extended X-ray Absorption Fine Structure Study of Pb(II) Chemisorption on Hematite (0001) and (1-102) Surfaces

Langmuir ◽  
2004 ◽  
Vol 20 (5) ◽  
pp. 1667-1673 ◽  
Author(s):  
John R. Bargar ◽  
Thomas P. Trainor ◽  
Jeffery P. Fitts ◽  
Scott A. Chambers ◽  
Gordon E. Brown
Keyword(s):  
Fine Structure ◽  
Grazing Incidence ◽  
Structure Study ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

In Situ Time-Resolved Energy-Dispersive X-ray Absorption Fine Structure Study on the Decarbonylation Processes of Mo(CO)6Entrapped in NaY and HY Zeolites

2002 ◽  
Vol 106 (9) ◽  
pp. 2415-2422 ◽  
Author(s):  
Aritomo Yamaguchi ◽  
Akane Suzuki ◽  
Takafumi Shido ◽  
Yasuhiro Inada ◽  
Kiyotaka Asakura ◽  
...  
Keyword(s):  
Fine Structure ◽  
Structure Study ◽  
Energy Dispersive ◽  
Time Resolved ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption ◽  
Hy Zeolites

In Situ La, Ce, and Nd L‐Edge X‐Ray Absorption Fine Structure Study of an Intermetallic Metal Hydride Electrode in an Operating Alkaline Battery

1995 ◽  
Vol 142 (5) ◽  
pp. L76-L78 ◽  
Author(s):  
Donald A. Tryk ◽  
In Tae Bae ◽  
Daniel Scherson ◽  
Mark R. Antonio ◽  
Gerald W. Jordan ◽  
...  
Keyword(s):  
Fine Structure ◽  
Metal Hydride ◽  
Structure Study ◽  
X Ray ◽  
Metal Hydride Electrode ◽  
Alkaline Battery ◽  
Absorption Fine ◽  
X Ray Absorption

scholarly journals In-situ extended X-ray absorption fine structure study of electrostriction in Gd doped ceria

2015 ◽  
Vol 106 (4) ◽  
pp. 042904 ◽  
Author(s):  
Roman Korobko ◽  
Alyssa Lerner ◽  
Yuanyuan Li ◽  
Ellen Wachtel ◽  
Anatoly I. Frenkel ◽  
...  
Keyword(s):  
Fine Structure ◽  
Structure Study ◽  
Doped Ceria ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

In situ extended x-ray absorption fine structure study of initial processes in CdSe nanocrystals formation using a microreactor

2009 ◽  
Vol 94 (6) ◽  
pp. 063104 ◽  
Author(s):  
M. Uehara ◽  
Z. H. Sun ◽  
H. Oyanagi ◽  
K. Yamashita ◽  
A. Fukano ◽  
...  
Keyword(s):  
Fine Structure ◽  
Structure Study ◽  
Cdse Nanocrystals ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption
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