Catalytic properties and surface states of La1-x Ce x CoO3

1987 ◽  
Vol 22 (11) ◽  
pp. 4031-4035 ◽  
Author(s):  
Kenji Tabata ◽  
Ikuo Matsumoto ◽  
Shigemi Kohiki ◽  
Makoto Misono
Keyword(s):  
Catalytic Properties ◽  
Surface States

Catalytic properties and surface states of cobalt-containing oxidation catalysts

1990 ◽  
Vol 64 ◽  
pp. 209-224 ◽  
Author(s):  
Edouard Garbowski ◽  
Michelle Guenin ◽  
Marie-Claire Marion ◽  
Michel Primet
Keyword(s):  
Catalytic Properties ◽  
Surface States ◽  
Oxidation Catalysts

Catalytic properties and surface states of La1?x (Th, Sr) x CoO3

1987 ◽  
Vol 22 (10) ◽  
pp. 3781-3783 ◽  
Author(s):  
Kenji Tabata ◽  
Shigemi Kohiki
Keyword(s):  
Catalytic Properties ◽  
Surface States

Synthesis of hierarchical Polystyrene/Polyaniline@Au nanostructures of different surface states and studies of their catalytic properties

2014 ◽  
Vol 57 (9) ◽  
pp. 1211-1217 ◽  
Author(s):  
Jie Yu ◽  
WanChun Guo ◽  
Mu Yang ◽  
Yi Luan ◽  
JinZhang Tao ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Surface States

scholarly journals Surface states and catalytic properties of La1-xSrxCoO3.

Hyomen Kagaku ◽  
1988 ◽  
Vol 9 (2) ◽  
pp. 153-158 ◽  
Author(s):  
Yasutake TERAOKA ◽  
Noburu YAMAZOE ◽  
Tetsuro SEIYAMA
Keyword(s):  
Catalytic Properties ◽  
Surface States

Effect of the reduction–preparation method on the surface states and catalytic properties of supported-nickel particles

2006 ◽  
Vol 258 (1-2) ◽  
pp. 221-230 ◽  
Author(s):  
M. Cerro-Alarcón ◽  
B. Bachiller-Baeza ◽  
A. Guerrero-Ruiz ◽  
I. Rodríguez-Ramos
Keyword(s):  
Preparation Method ◽  
Catalytic Properties ◽  
Surface States ◽  
Nickel Particles

Zero-loss omega-filtered REM and RHEED on the new Zeiss 912

1991 ◽  
Vol 49 ◽  
pp. 616-617
Author(s):  
J.C.H. Spence ◽  
J. Mayer
Keyword(s):  
Electron Microscopy ◽  
Materials Science ◽  
Surface States ◽  
Ccd Camera ◽  
Dark Field ◽  
Ion Pump ◽  
Magnetic Imaging ◽  
Reflection Electron Microscopy ◽  
Diffraction Patterns ◽  
Large Background

The Zeiss 912 is a new fully digital, side-entry, 120 Kv TEM/STEM instrument for materials science, fitted with an omega magnetic imaging energy filter. Pumping is by turbopump and ion pump. The magnetic imaging filter allows energy-filtered images or diffraction patterns to be recorded without scanning using efficient parallel (area) detection. The energy loss intensity distribution may also be displayed on the screen, and recorded by scanning it over the PMT supplied. If a CCD camera is fitted and suitable new software developed, “parallel ELS” recording results. For large fields of view, filtered images can be recorded much more efficiently than by Scanning Reflection Electron Microscopy, and the large background of inelastic scattering removed. We have therefore evaluated the 912 for REM and RHEED applications. Causes of streaking and resonance in RHEED patterns are being studied, and a more quantitative analysis of CBRED patterns may be possible. Dark field band-gap REM imaging of surface states may also be possible.

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.

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