Kinetics and modeling of diffusion phenomena occurring during the complete oxidation of zinc powder: influence of granulometry, temperature and relative humidity of the oxidizing fluid

被引：15

作者：

Delalu, H ^{[1
]}

Vignalou, JR ^{[1
]}

Elkhatib, M ^{[1
]}

Metz, R ^{[1
]}

机构：

[1] Univ Lyon 1, URA CNRS 116, Lab Energet & Synthese Inorgan, F-69622 Villeurbanne, France

来源：

SOLID STATE SCIENCES | 2000年 / 2卷 / 02期

关键词：

zinc oxidation; zinc powder; Arrhenius law; kinetics;

D O I：

10.1016/S1293-2558(00)00130-8

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The kinetics of the complete oxidation of zinc powder by oxygen or air has been investigated from thermogravimetric studies under isothermal conditions in the range 772-1107 K. Particles size and hygrometry were chosen in the 65-375 mu m and 0-50% ranges, respectively. We have been able to carry out the powder oxidation above the zinc metal melting point without coalescence of the particles. A quantitative interpretation based on the diffusion of reactants through the oxide layer has been proposed. The activation energy calculated from the Arrhenius law is close to 130 kJ mol(-1). (C) 2000 Editions scientifiques et medicales Elsevier SAS. All rights reserved.

引用

页码：229 / 235

页数：7

共 13 条

[1]

Achard N, 1997, EUR J SOL STATE INOR, V34, P425

[2]

BERNARD J, 1962, OXYDATION METAUX PRO

[3]

BUCHER O, 1992, THESIS LYON I FRANCE

[4]

LINDER R, 1952, ACTA CHEM SCAND, P457

[5]

MARCHAND A, 1992, Patent No. 92420259

[6]

MARCHAND A, 1991, Patent No. 9103550

[7] KINETICS OF THE FORMATION OF OXIDE FILMS ON ZINC FOIL [J].

MOORE, WJ ;

LEE, JK .

TRANSACTIONS OF THE FARADAY SOCIETY, 1951, 47 (05) :501-508

[8]

MOORE WJ, 1956, J CHIM PHYS PCB, V53, P845

[9]

MOORE WJ, 1962, COMMUNICATION, P52

[10]

SECCO A, 1955, J CHEM PHYS, V23, P1170

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