Oxidation Behaver of Fe3O4 Coaded with SiO2 by Fluidized CVD流态化CVD包硅的Fe3O4的氧化行为溶剂热St ber法核壳结构四氧化三铁/二氧化硅复合磁性微球以溶剂热法制备的高磁饱和强度Fe3O4纳米颗粒为核,正硅酸乙酯(TEOS)为前驱体,采用St?ber方法,在乙醇/水溶液中,通过氨水催化水解硅醇盐,制得核壳结构的...
Changes in the intrinsic magnetic properties (saturation magnetisation, saturation remanenc... Catherine,Goss - 《Physics & Chemistry of Minerals》 被引量: 69发表: 1988年 Saturation magnetisation, coercivity and lattice parameter changes in the system Fe3O4-γFe2O3, and their relationship to ...
Synthesis of Fe3O4 Nanoparticles Using the Co-Precipitation Method and its Development into Nanofluids as a Catalyst in Aquathermolysis Reactions Catalytic aquathermolysis is proposed as one of the potential methods which functions to reduce the viscosity of heavy oil for ease of extraction. In this...
Fe3O4磁流体 1. The water-based Fe_3O_4 magnetic fluid was prepared by hydrothermal method in the experiment. 采用水热法制备了水基Fe3O4磁流体,利用X衍射仪和透射电镜对磁粒子的组成、结构及粒径进行了分析,利用古埃磁天平研究了磁流体的饱和磁化强度和超顺磁性,研究了反应时间、温度、表面活性剂等主...
Simple Fe(NO3)2·9H2O was demonstrated to be able to catalyze the oxidation of monoterpenes by hydrogen peroxide in methyl alcohol solution. Compared with the previous iron-catalyzed methods, the present procedure avoids the use of stabilizing ligands, additives, and corrosive peroxide organic oxi...
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...
Qiu et al.[108]focused on the application of ozonation during the degradation of diclofenac in an aqueous system. The authors performed quantum chemical calculations of ozone initiative degradation of diclofenac, applying transition state theory. It was found that most products of diclofenac degradation...
The oxidation state of a transition metal in a crystal lattice is conventionally viewed as reflecting physical ionization: electrons have been transferred to or from the atom, leaving a point-like charged entity (ion). Such a picture is still sometimes i
The basic concepts and current state of the rapidly developing technique of ultraviolet inverse photoemission are discussed. This new technique allows one to determine unoccupied electronic states in solids and at surfaces. The informati... Dose,V - 《Journal of Physical Chemistry》 被引量: 77发表...
On Earth, iron mainly appears in the form of its oxides; furthermore, hydroxides, carbonates and sulfides are also common [1]. However, the two most important oxides are hematite (Fe2O3) and magnetite (Fe3O4) [2]. In the last decade, iron oxide reduction has been widely investigated ...