Effects of Tb and Ba introduction on the reaction mechanism of direct NO decomposition over C-type cubic rare earth oxides based on Y2O3

2013 ◽  
Vol 3 (8) ◽  
pp. 1928 ◽  
Author(s):  
Soichiro Tsujimoto ◽  
Keisuke Yasuda ◽  
Toshiyuki Masui ◽  
Nobuhito Imanaka
Keyword(s):  
Rare Earth ◽  
Reaction Mechanism ◽  
Rare Earth Oxides ◽  
No Decomposition

Surface reactivity of prereduced rare earth oxides with nitric oxide: New approach for NO decomposition

2002 ◽  
Vol 4 (13) ◽  
pp. 3146-3151 ◽  
Author(s):  
Masaaki Haneda ◽  
Yoshiaki Kintaichi ◽  
Hideaki Hamada
Keyword(s):  
Nitric Oxide ◽  
Rare Earth ◽  
Rare Earth Oxides ◽  
Surface Reactivity ◽  
No Decomposition ◽  
New Approach

Reaction Mechanism of NO Reduction by CH4over Rare Earth Oxides in Oxidizing Atmosphere

1996 ◽  
Vol 69 (11) ◽  
pp. 3367-3373 ◽  
Author(s):  
Kiyoshi Otsuka ◽  
Qinghong Zhang ◽  
Ichiro Yamanaka ◽  
Hiromi Tono ◽  
Masaharu Hatano ◽  
...  
Keyword(s):  
Rare Earth ◽  
Reaction Mechanism ◽  
No Reduction ◽  
Rare Earth Oxides ◽  
Oxidizing Atmosphere

Fundamental Aspects of Rare Earth Oxides Affecting Direct NO Decomposition Catalysis

2015 ◽  
Vol 2015 (9) ◽  
pp. 1524-1528 ◽  
Author(s):  
Soichiro Tsujimoto ◽  
Toshiyuki Masui ◽  
Nobuhito Imanaka
Keyword(s):  
Rare Earth ◽  
Rare Earth Oxides ◽  
No Decomposition

LASER SPECTROSCOPY OF RARE EARTH OXIDES

1987 ◽  
Vol 48 (C7) ◽  
pp. C7-611-C7-615
Author(s):  
C. LINTON
Keyword(s):  
Rare Earth ◽  
Laser Spectroscopy ◽  
Rare Earth Oxides

Effect of Rare Earth Oxides on Electrical Properties of Spark Plasma Sintered AlN Ceramics

2015 ◽  
Vol 30 (3) ◽  
pp. 267
Author(s):  
HUANG Lin-Yun ◽  
LI Chen-Hui ◽  
KE Wen-Ming ◽  
SHI Yu-Sheng ◽  
HE Zhi-Yong ◽  
...  
Keyword(s):  
Rare Earth ◽  
Electrical Properties ◽  
Rare Earth Oxides ◽  
Spark Plasma

A glance on rare earth oxides: importance, reserves, demand, applications, critical uncertainties, global economy, and zeta potential characterization

2020 ◽  
Vol 05 ◽  
Author(s):  
Silas Santos ◽  
Orlando Rodrigues ◽  
Letícia Campos
Keyword(s):  
Rare Earth ◽  
Zeta Potential ◽  
Sample Preparation ◽  
Rare Earths ◽  
Smart Materials ◽  
Global Economy ◽  
Materials Science ◽  
Functional Materials ◽  
Rare Earth Oxides ◽  
Interparticle Forces

Background: Innovation mission in materials science requires new approaches to form functional materials, wherein the concept of its formation begins in nano/micro scale. Rare earth oxides with general form (RE2O3; RE from La to Lu, including Sc and Y) exhibit particular proprieties, being used in a vast field of applications with high technological content since agriculture to astronomy. Despite of their applicability, there is a lack of studies on surface chemistry of rare earth oxides. Zeta potential determination provides key parameters to form smart materials by controlling interparticle forces, as well as their evolution during processing. This paper reports a study on zeta potential with emphasis for rare earth oxide nanoparticles. A brief overview on rare earths, as well as zeta potential, including sample preparation, measurement parameters, and the most common mistakes during this evaluation are reported. Methods: A brief overview on rare earths, including zeta potential, and interparticle forces are presented. A practical study on zeta potential of rare earth oxides - RE2O3 (RE as Y, Dy, Tm, Eu, and Ce) in aqueous media is reported. Moreover, sample preparation, measurement parameters, and common mistakes during this evaluation are discussed. Results: Potential zeta values depend on particle characteristics such as size, shape, density, and surface area. Besides, preparation of samples which involves electrolyte concentration and time for homogenization of suspensions are extremely valuable to get suitable results. Conclusion: Zeta potential evaluation provides key parameters to produce smart materials seeing that interparticle forces can be controlled. Even though zeta potential characterization is mature, investigations on rare earth oxides are very scarce. Therefore, this innovative paper is a valuable contribution on this field.

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