MOSSBAUER-SPECTROSCOPY STUDY ON THE HYDROTHERMAL TRANSFORMATION ALPHA-FEOOH-]ALPHA-FE2O3

被引：7

作者：

BARB, D

DIAMANDESCU, L

MIHAILATARABASANU, D

RUSI, A

MORARIU, M

机构：

[1] Central Institute of Physics, Bucharest

来源：

HYPERFINE INTERACTIONS | 1990年 / 53卷 / 1-4期

关键词：

D O I：

10.1007/BF02101054

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The reaction kinetics of the hydrothermal transformation α-FeOOH→α-Fe2O3 was studied by means of Mössbauer spectroscopy. From the reaction isotherms, a monomolecular, first order reaction was found to characterise the hydrothermal transformation of alpha oxihydroxide to the alpha iron oxide. The rate constant as well as the activation energy of this process were determined. No intermediate phases were identified in the hydrothermal samples. The thermodynamic properties of the hydrothermal system α-FeOOH→α-Fe2O3 in correlation with Mössbauer spectroscopy data are discussed. © 1990 J.C. Baltzer AG, Scientific Publishing Company.

引用

页码：285 / 289

页数：5

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