Structure and Morphology of Neodymium-doped Cerium Oxide Solid Solution Prepared by a Combined Simple Polymer Heating and D.C.-Magnetron Sputtering Method

2008 ◽  
Author(s):  
I. Nurhasanah ◽  
M. Abdullah ◽  
Khairurrijal ◽  
Abarrul Ikram ◽  
Agus Purwanto ◽  
...  
Keyword(s):  
Solid Solution ◽  
Magnetron Sputtering ◽  
Cerium Oxide ◽  
Structure And Morphology ◽  
Oxide Solid Solution

In-situ formed Co from Co-Mg-O solid solution synergizing with LiH for efficient ammonia synthesis

2021 ◽  
Author(s):  
Wenbo Gao ◽  
Sheng Feng ◽  
Hanxue Yan ◽  
Qianru Wang ◽  
Hua Xie ◽  
...  
Keyword(s):  
Solid Solution ◽  
Metal Nanoparticles ◽  
Magnesium Oxide ◽  
Ammonia Synthesis ◽  
Oxide Solid Solution ◽  
In Situ Formation

A cobalt magnesium oxide solid solution (Co-Mg-O) supported LiH catalyst has been synthesized, in which LiH functions both as a strong reductant for in-situ formation of Co metal nanoparticles and...

Investigation on infrared electroluminescence from Er3+-doped Tb2O3 light-emitting diodes

2021 ◽  
pp. 2050005
Author(s):  
Hao Li ◽  
Shenwei Wang ◽  
Liyuan Bai ◽  
Kai Ou ◽  
Yanwei Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Energy Transfer ◽  
Magnetron Sputtering ◽  
Radio Frequency ◽  
Doping Concentration ◽  
Light Emitting Diodes ◽  
Radio Frequency Magnetron Sputtering ◽  
Light Emitting ◽  
Structure And Morphology ◽  
Electroluminescence Intensity

Tb2O3:Er light-emitting diodes were prepared by radio-frequency magnetron sputtering method and the EL performance of the devices were studied. The crystal structure and morphology of the annealed films were investigated by XRD and SEM, respectively. The EL spectrum was achieved and the EL principle was discussed. Six emission peaks of Er[Formula: see text] located at 402, 517, 548, 649, 691, and 1,538[Formula: see text]nm were observed, achieving energy transfer from Tb[Formula: see text] to Er[Formula: see text]. In order to study the effect of Er+ doping concentration, the doping concentrations of Tb2O3:Er films were from 5[Formula: see text]at.% to 20[Formula: see text]at.%. The effect on electroluminescence intensity of doping concentration was investigated and the optimal doped concentration was 15[Formula: see text]at. %.

Catalytic Hydrogenation of Acetic Acid to Acetaldehyde: Synergistic Effect of Bifunctional Co/Ce‐Fe Oxide Solid Solution Catalysts

2019 ◽  
Vol 37 (7) ◽  
pp. 709-719 ◽  
Author(s):  
Naixu Li ◽  
Qi Zhang ◽  
Rehana Bibi ◽  
Quanhao Shen ◽  
Richard Ngulube ◽  
...  
Keyword(s):  
Solid Solution ◽  
Acetic Acid ◽  
Synergistic Effect ◽  
Catalytic Hydrogenation ◽  
Fe Oxide ◽  
Oxide Solid Solution

Synthesis and Properties of Cerium Oxide Nanoparticles

2011 ◽  
Vol 299-300 ◽  
pp. 118-121 ◽  
Author(s):  
Yong Li ◽  
Jin Gui He ◽  
Xiao Wei Huang
Keyword(s):  
Cerium Oxide ◽  
Raw Materials ◽  
Morphological Characteristics ◽  
Treatment Temperature ◽  
Precipitation Method ◽  
Thermal Treatment Temperature ◽  
X Ray ◽  
Structure And Morphology ◽  
Dispersing Agent ◽  
Scanning Electron

Cerium oxide(CeO2)nanoparticles were synthesized via a precipitation method using cerous sulfate, ammonia water and cetyl three methyl brominated ammoniu(CTAB) as raw materials. The effect of thermal treatment temperature and dispersing agent on the crystal structure and morphology were discussed. The structural evolutions and morphological characteristics of the nanoparticles were investigated using X-ray diffractometery, scanning electron microscopy, Fourier transform infrared spectroscopy. The results showed that the broadening of CeO2peaks decreases by the increasing in heat-treatment temperature and the dispersing agent playes key roles in microstructure of the CeO2.

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