APPEARANCE OF A COMPENSATION EFFECT IN THE THERMAL-DECOMPOSITION OF MANGANESE(II) CARBONATES, PREPARED IN THE PRESENCE OF OTHER METAL-IONS

被引：35

作者：

DOLLIMORE, D

RODGERS, PF

机构：

[1] Department of Chemistry and Applied Chemistry, University of Salford, Salford

来源：

THERMOCHIMICA ACTA | 1979年 / 30卷 / 1-2期

关键词：

D O I：

10.1016/0040-6031(79)85062-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study, a compensation effect is observed for the thermal decomposition of manganese(II) carbonates, prepared in the presence of Al3+ and Na+ ions. This compensation effect is described by the equation log A = aE + b, and the parameters are showm to be a = 0.1 and b = -2.9. The mechanism of decomposition was found to follow first order kinetics. Both A, the pre-exponential function, and E, the energy of activation, depended on the concentration and type of metal ion present in the carbonate preparation, and on the experimental method used to obtain Arrhenius parameters. In the rising temperature experiments, more than one Arrhenius plot was obtained over different temperature ranges. © 1979.

引用

页码：273 / 280

页数：8

共 43 条

[1] SO-CALLED THERMODYNAMIC COMPENSATION LAW AND THERMAL DEATH
BANKS, BEC
VERNON, CA
DAMJANOVIC, V
[J]. NATURE, 1972, 240 (5377) : 147 - +
[2] BLAZEK A, 1960, COLLECT CZECH CHEM C, V25, P2419
[3] BLAZEK A, 1959, SILIKATY, V3, P26
[4] BRILL O, 1907, Z PHYS CHEM, V51, P736
[5] KINETIC PARAMETERS FROM THERMOGRAVIMETRIC DATA
COATS, AW
REDFERN, JP
[J]. NATURE, 1964, 201 (491) : 68 - &
[6] The mechanism of catalytic decomposition
Constable, FH
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1925, 108 (746) : 355 - 378
[7] THE COMPENSATION EFFECT IN HETEROGENEOUS CATALYSIS
CREMER, E
[J]. ADVANCES IN CATALYSIS, 1955, 7 : 75 - 91
[8] CRIADO JM, 1968, 4TH P INT C CAT MOSC, P504
[9] DOLLIMORE D, 1974, 5TH INT S REACT SOL, P497
[10] Doyle C.D., 1961, J APPL POLYM SCI, V5, P285, DOI DOI 10.1002/APP.1961.070051506

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