The significant higher catalytic activity of the fine Fe3O4NPs mainly originated from the higher specific surface area, due to the increase in exposed active site number and adsorption capacity. The reusability of 30 nm Fe3O4NPs was also investigated after three successive runs, in which the ...
Synthesis and characterization of different metal oxide nanostructures by simple electrolysis based oxidation of metals. We report the Synthesis of different metal oxide (Cu2O, SnO2, Fe3O4 and PbO2) nanostructures by simple electrolysis based oxidation of metals (Cu, Sn, Fe a... DP Singh,ON Sr...
A number of possible explanations for the appearance of the cathodic peak, and a mechanism for the oxidation of PbO to PbO2 through Pb3O4 corresponding to the two anodic peaks, are proposed... N Munichandraiah - 《Journal of Electroanalytical Chemistry & Interfacial Electrochemistry》 被引量: ...
As a result, the energy barrier decreased by 92.4 kJ/mol, 81.3 kJ/mol, and 78.1 kJ/mol in comparison to the undoped Fe2O3, Fe3O4, and FeO, respectively. Sign in to download hi-res image Fig. 4. (a) Schematic illustration of the Y doped Fe2O3/Al2O3 OC in chemical looping ...
当化合物中两种元素的电负性相近时,如对于 NCl3、S4N4等,按上述规定难于确定这些元素的氧化数。 氧化数概念可这样定义:在单质或化合物中,假设把每个化学键中的电子指定给 所连接的两原子中电负性较大的一个原子,这样所得的某元素一个原子的电荷数就是 该元素的氧化数。可见,氧化数是一个有一定人为性的,经验...
翻译结果4复制译文编辑译文朗读译文返回顶部 High-temperature static sulfur dioxide, oxides of material surface formed mainly Fe O 2 3 3 and a small number of Fe O oxide layer 4, internal structure, with osteoporosis based integration interface more straight, evenly distributed over the surface in ...
实例:K2MnO4 157.8/1 Fe FeO 56/2 KMnO4MnO2 157.8/3 Fe Fe2O3 56/3 KMnO4Mn2+ 157.8/5 Fe Fe3O4 3(56/8 FeOFe ,Fe2O3Fe ,Fe3O4Fe 3.在不同的氧化还原反应中,同一化合物的氧化当量(或还原当量)也可以不同,这是由于它们在不同的氧化还原反应中,氧化数的变化不同所致4.若氧化剂(或还原剂)...
Pollution of waters by azo dyes is a major global issue because some azo dyes have carcinogenic and mutagenic effects. Therefore, advanced methods are required to remove those pollutants from wastewater. For instance, electrochemical oxidation processes have been developed using various approaches to rem...
Formation of more porous outward grown Fe3O4 layers at lower temperatures was also observed by Young et al. [27]. At 550 and 600 ºC, below the magnetite layer, the inward grown part consists of an IOZ while at temperatures above 600 °C the IOZ layer was replaced with the (Fe...
Scientific Reports11, Article number:5279(2021)Cite this article 4149Accesses 45Citations 2Altmetric Metrics Abstract Herein, a new magnetic metal–organic frameworks based on Fe3O4(NMMOFs) with porous and high surface area materials were synthesized. Then, NMMOFs were characterized by FT-IR, XRD...