The kinetics were dependent on the gas pressure, which allowed increased oxidation at the higher pressures by enhancing the transfer of O2 through the α-Fe2O3 layer and permitting better contact to be made at the metal—oxide interface by plastic deformation of the oxide scale.R.J....
摘要: X-ray diffraction and kinetic measurements show that the rate of oxidation of magnetite crystals smaller than about 0.2 to γ-Fe 2 O 3 is controlled by the diffusion of iron cations. A model of the mechanism is successful in describing the kinetics of the process....
Total oxidation of lean propane over α-Fe2O3 using microwaves as an energy sourcedoi:10.1007/s11144-014-0776-1Hydrothermal J Dobosz,M Zawadzki - 《Reaction Kinetics Mechanisms & Catalysis》 被引量: 0发表: 2015年 Kinetic modeling of the total oxidation of propane over CuO-CeO2/γ-Al2O3 ...
ZnO*Fe2O3 II-IIIII-II 元素Oxidation Number (Avg)Count电负性 Zn+211.7 O-243.4 Fe+321.8 🛠️ Calculate Oxidation Numbers 指令 Enter the formula of a chemical compound to find the oxidation number of each element. A net ionic charge can be specified at the end of the compound between {...
Mechanism of oxidation of magnetite to γ-Fe 2 O 3 . Nature, 1968, 217: 1118–1119K. J. Gallagher, et al. : Nature , 1968, vol. 217, pp. 1118–21.Gallagher, KJ, Feitknecht, W, Mannweiler, U (1968) Mechanism of oxidation of magnetite to γ-Fe2O3. Nature 217: pp. 1118-...
High-temperature static oxidation, the material is mainly formed on the surface of the oxide Fe2O3 and a small amount of Fe3O4, the internal structure of porous oxide layer, the interface with the substrate with relatively straight, evenly distributed in the material's surface ...
A series of Fe2O3–CeO2 composite catalysts were synthesized by coprecipitation and characterized by X-ray diffraction (XRD), BET surface area measurement, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Their catalytic activities in CO oxidation were also tested. The Fe2O3–CeO...
In2S3/F-Fe2O3 type-II heterojunction bonded by interfacial S-O for enhanced charge separation and transport in photoelectrochemical water oxidation ? 2021 Elsevier B.V.The application of hematite(α-Fe2O3)-based photoanodes in photoelectrochemical (PEC) water oxidation has been hampered by disgus...
FeII–FeIII hydroxysalt green rusts (GR), {FeII2/3FeIII1/3(OH)2}(1/3)+⋅{[(1/3)/n]An−⋅∼(m/n)H2O}(1/3)−, are prepared by oxidising a Fe(OH)2 precipitate in presence of anions An−(Cl−,SO42−,CO32−). Electrode potential Eh and pH recorded during ...
A 98% CO selectivity with a CH4 conversion of approximately 90% with a space velocity of 6000 h−1 g−1 in 5% methane was achieved. Their results also indicate that the amount of Fe3+ in the garnet structure is positively correlated with CO yield. The α-Fe2O3(001) and Y3Fe2Al...