NATURE OF FINE PARTICLES OF ALPHA-FEOOH

被引：20

作者：

VANDERKRAAN, AM

MEDEMA, J

机构：

[1] Reactor Instituut, Delft

来源：

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY | 1969年 / 31卷 / 07期

关键词：

D O I：

10.1016/0022-1902(69)90018-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Iron hydroxide samples of particle sizes between 50 and 220Å were prepared by the hydrolysis of Fe(NO3)3 solutions followed by ageing in KOH. The samples were investigated by means of X-ray diffraction, electronmicroscopy, differential thermal weight analysis and surface area measurements. Products with particle sizes greater than 100Å were found to consist of chemically and crystallographically pure α-FeOOH with some extra water which is both chemically and physically adsorbed. Products with particle sizes below 100Å can be described as a relatively labile arrangement of iron, oxygen and water poorly ordered in the form of an iron oxide-hydrate. © 1969.

引用

页码：2039 / +

页数：1

共 11 条

[1]

BRAUER G, 1962, HANDBOOK PREPARATIVE, V2, P1307

[2] STUDY OF THE NATURE OF SURFACES WITH POLAR MOLECULES .2. THE ADSORPTION OF WATER ON ALUMINAS [J].