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: 236发表: 1993年 In situ characterization of Cu-ZSM-5 by X-ray absorption spectr...
Enter just an element symbol to show the common and uncommon oxidation states of the element. 元素中的第一个字符使用大写字母,第二个字符使用小写字母。例子:Fe, Au, Co, Br, C, O, N, F。 你可以用小括号()或括号[ ]。 What is an oxidation state?
What is the oxidation state of V in [VO(tart)]*h2o? Oxidation Number: The sum of the oxidation numbers of each atom in a compound must be equal to the overall charge of the compound. By default, oxygen has oxidation state of -2. In this problem, you just need to know the charge ...
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 ...
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
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...
It was toward the end of the previous century that the commercial production techniques of aluminum were established, owing their success to the electrolytic reduction process. This development made it possible to use aluminum commercially and to exploit
On the one hand, crystal chemistry correlations indicate that the Pr ion is in trivalent state while on the other hand, the stabilizing cation, viz., Re, is in hexavalent state which accounts for the excess oxygen (>7.0) in the system. The highxcrvalue of the Sr series compared to the...
Flaming combustion is the most common type of combustion. It is the open-flame fire, such as the one seen in a gas burner. Chemically, it is a gas-to-gas reaction, meaning that the fuel has to be in the gaseous state in order to react with the oxidizer, which is already in the ...