Manipulating Cu Nanoparticle Surface Oxidation States Tunes Catalytic Selectivity toward CH 4 or C 2+ Products in CO 2 Electroreduction

2021 ◽  
pp. 2101424
Author(s):  
Qikui Fan ◽  
Xue Zhang ◽  
Xiaohu Ge ◽  
Licheng Bai ◽  
Dongsheng He ◽  
...  
Keyword(s):  
Surface Oxidation ◽  
Oxidation States ◽  
Catalytic Selectivity ◽  
Nanoparticle Surface ◽  
Cu Nanoparticle

Surface oxidation states of germanium

1986 ◽  
Vol 172 (2) ◽  
pp. 455-465 ◽  
Author(s):  
D. Schmeisser ◽  
R.D. Schnell ◽  
A. Bogen ◽  
F.J. Himpsel ◽  
D. Rieger ◽  
...  
Keyword(s):  
Surface Oxidation ◽  
Oxidation States

A novel approach to the study of surface oxidation states and oxidation of transition metals by Auger electron spectroscopy

1980 ◽  
Vol 370 (1741) ◽  
pp. 269-280 ◽  
Keyword(s):  
Transition Metal Oxides ◽  
Electron Spectroscopy ◽  
Auger Electron ◽  
Surface Oxidation ◽  
Oxidation States ◽  
Nickel Iron ◽  
Unique Probe ◽  
Novel Approach ◽  
Valence Electrons ◽  
Intensity Ratios

L 23 M 45 M 45 /L 23 M 23 M 45 ,L 23 M 45 M 45 /L 23 M 23 M 23 and L 23 M 23 M 23 Auger intensity ratios in transition metal oxides and sulphides are shown to be directly related to the number of valence electrons in the metal as well as to its oxidation state. The metal Auger intensity ratios provide a unique probe, independent of O(KLL) intensity, to study surface oxidation states of metals. These intensity ratios have been effectively employed to investigate surface oxidation of nickel, iron and copper. The oxidation studies have unravelled some interesting aspects of surface oxidation.

Surface Oxidation States in Si/SiO2Nanostructures Prepared from Si/SiO2Mixtures

Langmuir ◽  
2004 ◽  
Vol 20 (1) ◽  
pp. 260-262 ◽  
Author(s):  
James L. Gole ◽  
Brian D. Shinall ◽  
Alexei V. Iretskii ◽  
Mark G. White ◽  
Ann S. Erickson
Keyword(s):  
Surface Oxidation ◽  
Oxidation States

Influence of Cationic Surfactants on the Formation and Surface Oxidation States of Gold Nanoparticles Produced via Laser Ablation

Langmuir ◽  
2013 ◽  
Vol 29 (40) ◽  
pp. 12452-12462 ◽  
Author(s):  
Yuen-Yan Fong ◽  
Jason R. Gascooke ◽  
Bradley R. Visser ◽  
Hugh H. Harris ◽  
Bruce C. C. Cowie ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Laser Ablation ◽  
Cationic Surfactants ◽  
Surface Oxidation ◽  
Oxidation States

Structural properties and surface oxidation states of sputter‐deposited TiO 2− x thin films

2021 ◽  
Author(s):  
Swapan Jana ◽  
Anil Krishna Debnath ◽  
Veerender Putta ◽  
Jitendra Bahadur ◽  
Anil Kumar Chauhan ◽  
...  
Keyword(s):  
Thin Films ◽  
Structural Properties ◽  
Surface Oxidation ◽  
Oxidation States ◽  
Sputter Deposited

Interfacial Reaction Between a Sputter Deposited MoSi2 Film and its Oxidation Product on Al2O3 at 1300°C in Air.

1993 ◽  
Vol 317 ◽  
Author(s):  
P.K. Wu ◽  
L.E. Kolaya ◽  
D.J. Duquette ◽  
J.B. Hudson
Keyword(s):  
Oxidation Behavior ◽  
Surface Oxidation ◽  
Oxidation Products ◽  
Oxidation States ◽  
Chemical Compatibility ◽  
Polycrystalline Alumina ◽  
High Silica ◽  
Sputter Deposited ◽  
Silica Phases ◽  
Deposited Films

ABSTRACTThe chemical compatibility between MoSi2 and Al2O3 at 1300° C was examined using sputter deposited MoSi2 films, 0.7 μm thick, on sapphire and on polycrystalline alumina. The oxidation behavior of the sputter deposited films was found to be identical to that of bulk MoSi2. The oxidation products of the MoSi2 are Si oxides and lower suicides of Mo. MoO3 is formed and sublimes at the free surface. Oxidation is found to occur at the SiO2/MoSi2 interface. Just beneath this interface, suicides of mo and two oxidation states of Si were identified. No reaction between MoSi2 and alumina was found. In the case of a sapphire substrate, after mo was completely eliminated from the interface, silica reacted with the substrate and eventually phase separated into high- and low-silica phases. Nucleation, growth and coalescence of high-silica precipitates were observed.

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