Synthesis of One-Dimensional Ce1−xYxO2−x/2(0 ≤x≤ 1) Solid Solutions and Their Catalytic Properties: The Role of Oxygen Vacancies

2010 ◽  
Vol 114 (19) ◽  
pp. 8926-8932 ◽  
Author(s):  
Dan Yang ◽  
Lei Wang ◽  
Yangzhao Sun ◽  
Kebin Zhou
Keyword(s):  
Solid Solutions ◽  
Oxygen Vacancies ◽  
Catalytic Properties ◽  
One Dimensional

Microstructure and reactivity of small metal particles: The role of Ce additives

1992 ◽  
Vol 50 (1) ◽  
pp. 318-319
Author(s):  
L.D. Schmidt ◽  
K. R. Krause ◽  
J. M. Schwartz ◽  
X. Chu
Keyword(s):  
Atmospheric Pressure ◽  
Noble Metals ◽  
Mixed Oxides ◽  
Catalytic Properties ◽  
Chemical Shifts ◽  
Catalytic Converter ◽  
Structural Evolution ◽  
Single Particles ◽  
Small Metal Particles

The evolution of microstructures of 10- to 100-Å diameter particles of Rh and Pt on SiO2 and Al2O3 following treatment in reducing, oxidizing, and reacting conditions have been characterized by TEM. We are able to transfer particles repeatedly between microscope and a reactor furnace so that the structural evolution of single particles can be examined following treatments in gases at atmospheric pressure. We are especially interested in the role of Ce additives on noble metals such as Pt and Rh. These systems are crucial in the automotive catalytic converter, and rare earths can significantly modify catalytic properties in many reactions. In particular, we are concerned with the oxidation state of Ce and its role in formation of mixed oxides with metals or with the support. For this we employ EELS in TEM, a technique uniquely suited to detect chemical shifts with ∼30Å resolution.

Role of Mechanical Stresses at Ion Implantation of CdHgTe Solid Solutions

2013 ◽  
Vol 58 (9) ◽  
pp. 872-880 ◽  
Author(s):  
Smirnov A.B. Smirnov A.B. ◽  
◽  
Lytvyn O.S. Lytvyn O.S. ◽  
Morozhenko V.A. Morozhenko V.A. ◽  
Savkina R.K. Savkina R.K. ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Solid Solutions ◽  
Mechanical Stresses

Adiabatic large polarons in anisotropic molecular crystals

2011 ◽  
Vol 35 (1) ◽  
pp. 15-27
Author(s):  
Zoran Ivić ◽  
Željko Pržulj
Keyword(s):  
Energy Transfer ◽  
Effective Mass ◽  
Molecular Crystals ◽  
Single Chain ◽  
Proper Understanding ◽  
One Dimensional ◽  
Interchain Coupling ◽  
Large Polaron ◽  
The One

Adiabatic large polarons in anisotropic molecular crystals We study the large polaron whose motion is confined to a single chain in a system composed of the collection of parallel molecular chains embedded in threedimensional lattice. It is found that the interchain coupling has a significant impact on the large polaron characteristics. In particular, its radius is quite larger while its effective mass is considerably lighter than that estimated within the one-dimensional models. We believe that our findings should be taken into account for the proper understanding of the possible role of large polarons in the charge and energy transfer in quasi-one-dimensional substances.

Balanced performance for β-Ga2O3 solar blind photodetectors: The role of oxygen vacancies

2021 ◽  
Vol 112 ◽  
pp. 110808
Author(s):  
Jiang Wang ◽  
Yuanqiang Xiong ◽  
Lijuan Ye ◽  
Wanjun Li ◽  
Guoping Qin ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Solar Blind

Role of oxygen vacancies on ferromagnetism in Fe-doped TiO2 thin films

2007 ◽  
Vol 102 (7) ◽  
pp. 073905 ◽  
Author(s):  
H. J. Meng ◽  
D. L. Hou ◽  
L. Y. Jia ◽  
X. J. Ye ◽  
H. J. Zhou ◽  
...  
Keyword(s):  
Thin Films ◽  
Oxygen Vacancies ◽  
Tio2 Thin Films ◽  
Doped Tio2
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