Charging of atoms, clusters, and molecules on metal-supported oxides: A general and long-ranged phenomenon

2008 ◽  
Vol 78 (8) ◽  
Author(s):  
Pentti Frondelius ◽  
Anders Hellman ◽  
Karoliina Honkala ◽  
Hannu Häkkinen ◽  
Henrik Grönbeck
Keyword(s):  
Supported Oxides

Structure and reactivity of titania-supported oxides

1989 ◽  
Vol 46 (1) ◽  
pp. 89-102 ◽  
Author(s):  
Geoffrey C. Bond ◽  
Saad Flamerz
Keyword(s):  
Supported Oxides

Electron donation mechanism of superior Cs-supported oxides for catalytic soot combustion

2018 ◽  
Vol 337 ◽  
pp. 654-660 ◽  
Author(s):  
Qian Li ◽  
Ying Xin ◽  
Zhaoliang Zhang ◽  
Xiaoming Cao
Keyword(s):  
Soot Combustion ◽  
Supported Oxides ◽  
Electron Donation

Oxidative coupling of methane over supported oxides promoted with alkali metals

1989 ◽  
Vol 39 (1) ◽  
pp. 175-179 ◽  
Author(s):  
G. T. Baronetti ◽  
E. Lazzari ◽  
E. Y. García ◽  
A. A. Castro ◽  
J. L. García Fierro ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Alkali Metals ◽  
Oxidative Coupling Of Methane ◽  
Supported Oxides

An X-Ray Photoelectron Study of Doped and Supported Nickel Oxide

1985 ◽  
Vol 38 (9) ◽  
pp. 1293 ◽  
Author(s):  
SJ Cochran ◽  
FP Larkins
Keyword(s):  
Activation Energy ◽  
Electron Transport ◽  
Nickel Oxide ◽  
Photoelectron Spectroscopy ◽  
Oxide Surface ◽  
X Ray ◽  
Peak Intensity ◽  
Photoelectron Study ◽  
Supported Oxides ◽  
Doped Oxide

The surfaces of lithium-and chromium-doped nickel oxide and of nickel oxide supported on alumina have been examined by X-ray photoelectron spectroscopy. The concentration of the nickel(III) species increased for the lithium-doped oxide and decreased for the chromium-doped oxide relative to the undoped oxide. The effects of doping were manifested most clearly however by the amount of oxygen-containing species adsorbed on the oxide surface rather than by variations in the nickel(III) peak intensity. Lithium-doped oxides were also shown to reduce more readily than undoped or chromium-doped oxides in the presence of carbon-containing impurities. The rate of reduction is influenced by the activation energy for electron transport which is related to the availability of the nickel(III) species. Supported oxides showed significant surface enhancement of nickel(II) as well as an absence of the nickel(III) species. The nickel(II) species in the supported oxide was not easily reduced to nickel(0).

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