scholarly journals Revisit of XPS Studies of Supersonic O2 Molecular Adsorption on Cu(111): Copper Oxides

ACS Omega ◽  
2021 ◽  
Author(s):  
Koki Hayashida ◽  
Yasutaka Tsuda ◽  
Takashi Yamada ◽  
Akitaka Yoshigoe ◽  
Michio Okada
Keyword(s):  
Copper Oxides ◽  
Molecular Adsorption

Crystal chemistry of high-Tc superconductors

1990 ◽  
Vol 48 (4) ◽  
pp. 1118-1119
Author(s):  
Maryvonne Hervieu
Keyword(s):  
Oxygen Deficiency ◽  
Large Family ◽  
Copper Oxides ◽  
High Tc Superconductors ◽  
High Tc ◽  
Single Mechanism ◽  
Square Planar ◽  
History Of ◽  
Bismuth Cuprates ◽  
New Compounds

Four years after the discovery of superconductivity at high temperature in the Ba-La-Cu-O system, more than thirty new compounds have been synthesized, which can be classified in six series of copper oxides: La2CuO4 - type oxides, bismuth cuprates, YBa2Cu3O7 family, thallium cuprates, lead cuprates and Nd2CuO4 - type oxides. Despite their quite different specific natures, close relationships allow their structures to be simply described through a single mechanism. The fifth first families can indeed be described as intergrowths of multiple oxygen deficient perovskite slabs with multiple rock salt-type slabs, according to the representation [ACuO3-x]m [AO]n.The n and m values are integer in the parent structures, n varying from 0 to 3 and m from 1 to 4; every member of this large family can thus be symbolized by [m,n]. The oxygen deficient character of the perovskite slabs involves the existence or the co-existence of several types of copper environment: octahedral, pyramidal and square planar.Both mechanisms, oxygen deficiency and intergrowth, are well known to give rise easily to nonstoichiometry phenomena. Numerous and various phenomena have actually been characterized in these cuprates, strongly depending on the thermal history of the samples.

Agglomeration and leaching behaviors of copper oxides with different chemical binders

2021 ◽  
Vol 28 (7) ◽  
pp. 1127-1134
Author(s):  
Sheng-hua Yin ◽  
Lei-ming Wang ◽  
Xun Chen ◽  
Ai-xiang Wu
Keyword(s):  
Copper Oxides

The surface restructuring of copper oxides with mixed oxidation-states and their efficient CO oxidation properties

2021 ◽  
Vol 289 ◽  
pp. 129378
Author(s):  
Wei Liu ◽  
Baoqin Wang ◽  
Chenchen Cui ◽  
Yiwen Zhang ◽  
Lixuan Wang ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Copper Oxides ◽  
Oxidation States ◽  
Surface Restructuring ◽  
Mixed Oxidation ◽  
Oxidation Properties

CuOX Films for NO2 Detection: Microstructural Characterization

2013 ◽  
Vol 481 ◽  
pp. 133-136 ◽  
Author(s):  
T.N. Myasoedova ◽  
G.E. Yalovega ◽  
N.K. Plugotarenko ◽  
M. Brzhezinskaya ◽  
V.V. Petrov ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Secondary Electron ◽  
Operating Temperature ◽  
Sol Gel ◽  
Microstructural Characterization ◽  
Temperature Treatment ◽  
Copper Oxides ◽  
Edge Structure ◽  
X Ray ◽  
X Ray Absorption

Copper oxides films as promising materials for gas sensors applications were studied. Copper oxide films were deposited onto Si/SiO2substrates using a citrate sol-gel method with the subsequent temperature treatment at 150-5000C. These films were characterized by means of secondary electron microscopy (SEM) and X-ray-absorption near-edge structure (XANES) spectroscopy. The prepared films were utilized in NO2sensors. The dependences of the NO2response on the operating temperature and NO2concentration (10-200 ppm) were investigated. The maximum NO2response was achieved for the film annealed at 2500C.

Charge transfer effects on the chemical shift and the line width of the CuKα X-ray flourescence spectra of copper oxides

1989 ◽  
Vol 70 (5) ◽  
pp. 567-571 ◽  
Author(s):  
Jun Kawai ◽  
Yoshimasa Nihei ◽  
Masanori Fujinami ◽  
Yasuhiro Higashi ◽  
Sei Fukushima ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Chemical Shift ◽  
Line Width ◽  
Copper Oxides ◽  
Transfer Effects ◽  
X Ray

THE ADSORPTION AND BONDING OF H2S ON THE α-FeOOH(110) SURFACE

2007 ◽  
Vol 14 (02) ◽  
pp. 209-217 ◽  
Author(s):  
S. SIMONETTI ◽  
D. DAMIANI ◽  
A. JUAN ◽  
G. BRIZUELA
Keyword(s):  
Electronic Structure ◽  
Density Of States ◽  
Minimum Energy ◽  
Stable Configuration ◽  
Molecular Adsorption ◽  
Cluster Calculations

The electronic structure of H 2 S adsorbed on the goethite (110) surface has been studied by ASED-MO cluster calculations. We have studied both the perpendicular and the parallel H 2 S molecular adsorption on the FeOOH (110) surface. We have analyzed the adsorption configuration energies including rotation. The parallel species does not rotate during adsorption and corresponds to the most stable configuration. We have also studied the bonding contributions for the minimum energy configuration and the density of states plots.

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