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Kinetic study of the decomposition of hydrogen peroxide catalysed by Co(II) acetylacetonate supported on a silica-propylpiperazine matrix

被引：20
作者：
Oliveira, SF
Espinola, JGP
Lemus, WES
de Souza, AG
Airoldi, C
机构：
[1] Univ Fed Paraiba, CCEN, Dept Quim, BR-58059900 Joao Pessoa, Paraiba, Brazil
[2] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP, Brazil
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1998年 / 136卷 / 1-2期
关键词：
catalytic decomposition; hydrogen peroxide; propylpiperazine; silica gel;
D O I：
10.1016/S0927-7757(97)00318-X
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：
The catalytic decomposition of hydrogen peroxide by Co(II)acetylacetonate supported on a propylpiperazine-silica matrix (Co(II)(acac)-PPS) was studied in aqueous media. The results showed that the reaction was first order in H2O2. It was found that the reaction rate was pH dependent with a maximum at around pH = 8. Activation parameters were determined in the temperature range 30-45 degrees C. The low value obtained for the activation energy is in accordance with the proposed free-radical mechanism. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：151 / 154
页数：4
相关论文
共 18 条
[1]   CHEMISORPTION OF DIVALENT-CATIONS ON N-(2-PYRIDYL)ACETAMIDE IMMOBILIZED ON SILICA-GEL - A THERMODYNAMIC STUDY [J].
AIROLDI, C ;
ALCANTARA, EFC .
JOURNAL OF CHEMICAL THERMODYNAMICS, 1995, 27 (06) :623-632
[2]   THE CATALYTIC EFFECT OF TRANSITION METAL-ION AMMINE COMPLEXES ON THE DECOMPOSITION OF HYDROGEN-PEROXIDE IN THE PRESENCE OF DOWEX-50W RESIN IN AQUEOUS-MEDIUM [J].
ASHMAWY, FM ;
ELSHEIKH, MY ;
SALEM, IA ;
ZAKI, AB .
TRANSITION METAL CHEMISTRY, 1987, 12 (01) :51-55
[3]  
CHEMYAVSKII LI, 1969, KINET KATAL, V10, P1264
[4]  
CSANYI LJ, 1981, INORG CHIM A-BIOINOR, V55, P1
[5]   HOMOGENEOUS BASE-CATALYZED DECOMPOSITION OF HYDROGEN PEROXIDE [J].
DUKE, FR ;
HAAS, TW .
JOURNAL OF PHYSICAL CHEMISTRY, 1961, 65 (02) :304-&
[6]   FURTHER INVESTIGATION IN THE INTERACTION OF HYDROGEN-PEROXIDE WITH IRON (III) HYDROXIDE SUPPORTED ION-EXCHANGE RESIN [J].
ELSHEIKH, M .
JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1994, 91 (09) :1439-1459
[7]   CATALYTIC DECOMPOSITION OF HYDROGEN-PEROXIDE IN THE PRESENCE OF N, N'-BIS(SALICYLIDENE)-ORTHO-PHENYLENEDIAMINEIRON(III) SORBED ON TO DOWEX-50W RESIN [J].
ELSHEIKH, MY ;
ASHMAWY, FM ;
SALEM, IA ;
ZAKI, AB ;
NICKEL, U .
TRANSITION METAL CHEMISTRY, 1991, 16 (03) :319-323
[8]   MIXED RESIN BASE-CATALYZED DECOMPOSITION OF HYDROGEN-PEROXIDE [J].
ELSHEIKH, MY .
COLLOIDS AND SURFACES, 1991, 54 (1-2) :83-88
[9]  
ERDEY L, 1955, ACTA CHIM HUNG, V7, P93
[10]   IMMOBILIZED DITHIOCARBAMATE GROUPS ON SILICA - CHEMISORPTION OF SOME CATIONS FROM ETHANOLIC SOLUTION [J].
ESPINOLA, JGP ;
DEFREITAS, JMP ;
DEOLIVEIRA, SF ;
AIROLDI, C .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1994, 87 (01) :33-38
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