This study utilizes X-ray Absorption Near Edge Structure spectroscopy to investigate the Cu oxidation state in hydrous mafic silicate melts equilibrated under diverse fO2 ( 1.8 to 3.1 log units relative to the Fayalite–Magnetite–Quartz buffer), temperature (1150–1300 °C), and pressure (1.0–...
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...
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 ...
What is the Oxidation State of Copper inCu(CN)? The average oxidation state of the 1 Cu atom in Cu(CN) is +1. ElementOxidation Number (Avg)AtomsCountElectronegativity C+2+2 (×1)12.6 N-3-3 (×1)13.0 Cu+1+1 (×1)11.9 🛠️ ...
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...
determination of the oxidation and coordination state of copper on different cu-based catalysts by xanes spectroscopy in situ or in operando conditionsy C Lamberti,S Bordiga,F Bonino,... 被引量: 0发表: 0年 Redox Behavior of Copper Oxide/Zinc Oxide Catalysts in the Steam Reforming of Methanol...
The zeolite Cu(I)Y is promising for adsorptive removal of thiophenic sulfur compounds from transportation fuels. However, its application is seriously hindered by the instability of Cu(I), which is easily oxidized to Cu(II) even under atmospheric environ
To better understand the oxidation kinetics of Cu, the oxidation kinetics of Cu(111) in the low-temperature range of 313–453 K were studied
between Cu atoms in the film and O atoms in Al2O3is estimated to be 6.9%. However, considering the extended atomic distance mismatch (EADM)22,23, the large mechanical misfit strain can be relieved if the mismatch for a relatively long period of atomic distance is extremely small. The EADM...
Although metallic nanostructures have been attracting tremendous research interest in nanoscience and nanotechnologies, it is known that environmental attacks, such as surface oxidation, can easily initiate cracking on the surface of metals, thus deteriorating their overall functional/structural properties1,2...