The average oxidation state of the 2 Cu atoms in CuO(Cu) is +1. ElementOxidation Number (Avg)AtomsCountElectronegativity O -2 -2 (×1) 1 3.4 Cu +1 +1 (×2) 2 1.9 🛠️ Calculate Oxidation Numbers Instructions Enter the formula of a chemical compound to find the oxidation number...
The oxidation state of Cu in Cu-ZSM-5 has been investigated by the X-ray absorption near-edge structure (XANES) spectroscopic method during NO decompositio... DJ Liu,HJ Robota - 《Catalysis Letters》 被引量: 235发表: 1993年 In situ characterization of Cu-ZSM-5 by X-ray absorption spectr...
Valence State of Active Copper in CuOx/CeO2 Catalysts for CO Oxidation[J]. 曾尚红,白雪,王晓燕,于文国,刘源.Journal of Rare Earths. 2006(02)Shanghong Zeng,Xue Bai,Xiaoyan Wang,Wenguo Yu,Yuan Liu.  Valence State of Active Copper in CuO x /CeO 2 Catalysts for CO Oxidation[J]. ...
Variations in the oxidation state of copper during CO catalytic oxidation over powdered CuO and Cu 2 O in a gas mixture of 5% CO/He and air (O 2 ) were investigated by means of an appropriate combination of evolved gas analysis, thermogravimetry, XRD, and FT-IR in the temperature range ...
Using X-ray absorption spectroscopy (XAS) at the Cu L(2,3) and Co L(2,3) edges, we demonstrate that the valence state of copper in the thiospinel carrollite (CuCo(2)S(4)) is Cu(+) with a d count of Cu d(9.8). The Co has a d count of d(6.4), so that the highly cova...
This value is significantly lower than the one (~ 3.64) expected on the basis of the value determined for the Na to Co stoichiometry ratio, x. The "lower-than-expected" value for the Co oxidation state may be alternatively explained by presence of oxygen vacancies or excess protons. More...
To determine the changes in the chemical state of the CuNPs upon exposure to air, XPS core level Cu 2p3/2spectra and Cu LMM Auger spectra of MPA-capped CuNPs (9) were collected after 0, 16 h and 5 days of air exposure (Fig.5and Supplementary Fig.13). The narrow peak at 932.0...
Structural perturbations of substrate binding and oxidation state changes in a lytic polysaccharide monooxygenase Paul H. Walton Gideon J. Davies JBIC Journal of Biological Inorganic Chemistry(2022) Recent Computational Insights into the Oxygen Activation by Copper-Dependent Metalloenzymes ...
Given that the step edge is vulnerable to oxidation because surface steps act as the dominant source of Cu adatoms for oxide growth on surface terraces2,11, oxidation resistance requires that surface step edges are avoided6,12,13. In this regard, the close-packed Cu(111) surface is superior...
Corresponding author: Dan Dang, School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P.R. China, E-mail: dandang@haut.edu.cn Acknowledgments The authors would like to thank the State Key Laboratory of Coking Coal Exploitation and Comprehensive Utilization ...