Low-temperature heterogeneous oxidation of sulfide ions on a higher Co oxide system in aqueous medium

被引：3

作者：

Christoskova, S ^{[1
]}

Stojanova, M ^{[1
]}

Georgieva, M ^{[1
]}

Argirov, O ^{[1
]}

机构：

[1] Paisij Hilendarski Univ Plovdiv, Dept Phys Chem, BG-4000 Plovdiv, Bulgaria

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1999年 / 66卷 / 01期

关键词：

oxidation of sulfides; kinetics; higher Co oxide IR; XPS; reaction mechanism;

D O I：

10.1007/BF02475741

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Low-temperature heterogeneous oxidation of sulfide ions on a higher Co oxide system in aqueous medium has been studied. The effects of pH, temperature and catalyst amount on the kinetic parameters as well as on the selectivity of the oxidation process were investigated. An oxidation mechanism has been proposed based on the results of kinetic investigations and on the data obtained by IR and XPS spectroscopic studies of Co oxide before and after sulfide ion oxidation.

引用

页码：55 / 62

页数：8

共 16 条

[1]

ALMGREN TS, 1974, WATER RES, V8, P95

[2] Catalytic oxidation of sulfide ions over nickel hydroxides [J].

Andreev, A ;

Khristov, P ;

Losev, A .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1996, 7 (3-4) :225-235

[3]

ANDREEV A, 1993, NATO ASI SER B, V305, P219

[4] Study on the thermal stability of a high Co-oxide used as low-temperature catalyst and oxidant for complete oxidation [J].

Christoskova, S ;

Stojanova, M ;

Georgieva, M ;

Mehandzhiev, D .

THERMOCHIMICA ACTA, 1997, 292 (1-2) :77-83

[5]

Elvers B., 1989, Ullmann's Encyclopedia of Industrial Chemistry

[6]

Farmer V.C., 1974, INFRARED SPECTRA MIN, P331, DOI [DOI 10.1180/MONO-4, 10.1180/mono-4, DOI 10.1180/MONO-4.15]

[7] DETERMINATION OF SULPHUR IN PLANT MATERIAL [J].

GARRIDO, ML .

ANALYST, 1964, 89 (105) :61-&

[8] KINETICS AND MECHANISM OF THE OXIDATION OF SULFIDE BY OXYGEN - CATALYSIS BY HOMOGENEOUS METAL-PHTHALOCYANINE COMPLEXES [J].

HOFFMANN, MR ;

LIM, BC .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1979, 13 (11) :1406-1414

[9]

IRIDENTA CD, 1986, IND USOARA, V33, P300

[10]

KELSALL GH, 1993, J APPL ELECTROCHEM, V23, P79

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