The effect of K and Al over NiCo2O4catalyst on its character and catalytic oxidation of VOCs

被引：30

作者：

Chen, M ^{[1
]}

Zheng, XM ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Chem, Hangzhou 310028, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 221卷 / 1-2期

关键词：

potassium; additive; catalytic combustion; VOCs;

D O I：

10.1016/j.molcata.2004.04.036

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：

NiCo2O4, K-NiCo2O4, and Al-NiCo2O4 spinel oxides were prepared by co-precipitated method. The properties of these three samples were investigated by X-ray powder diffraction (XRD), temperature-programmed reduction (TPR), Brunauer-Emmett-Teller (BET) measurement, and X-ray photoelectron spectroscopy (XPS) technologies. The catalytic activity of volatile organic compounds (VOCs) oxidation was found to be decreased after adding aluminum and increased after adding potassium in NiCo2O4 sample. The small particle size of NiCo2O4 was responsible for VOCs oxidation. The potassium was the most effective in promoting NiCo2O4 sample in reducibility and surface area. XPS analysis indicated that the electrophonic oxygen species on the catalyst surface is the main active oxygen and plays an important role in total oxidation of VOCs. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：77 / 80

页数：4

共 12 条

[1]

ARNOLDY P, 1989, J CATAL, V117, P311

[2] Catalytic combustion of methane on aluminate-supported copper oxide [J].

Artizzu, P ;

Garbowski, E ;

Primet, M ;

Brulle, Y ;

Saint-Just, J .

CATALYSIS TODAY, 1999, 47 (1-4) :83-93

[3]

Bielanski A., 1991, OXYGEN CATALYSIS, DOI DOI 10.1201/9781482293289

[4] Characterisation of Mg/Al hydrotalcite with interlayer palladium complex for catalytic oxidation of toluene [J].

Carpentier, J ;

Lemonier, JF ;

Siffert, S ;

Zhilinskaya, EA ;

Aboukaïis, A .

APPLIED CATALYSIS A-GENERAL, 2002, 234 (1-2) :91-101

[5]

Chen M, 2002, INDIAN J CHEM A, V41, P2277

[6]

Cho W., 2002, CATAL TODAY, V74, P207

[7]

Jin ZS, 2003, J MOL CATAL A-CHEM, V191, P61

[8] REGULARITIES IN CATALYTIC PROPERTIES OF METAL OXIDES IN PROPYLENE OXIDATION [J].

MOROOKA, Y ;

OZAKI, A .

JOURNAL OF CATALYSIS, 1966, 5 (01) :116-&

[9] REGULARITY IN CATALYTIC PROPERTIES OF METAL OXIDES IN HYDROCARBON OXIDATION [J].

MOROOKA, Y ;

MORIKAWA, Y ;

OZAKI, A .

JOURNAL OF CATALYSIS, 1967, 7 (01) :23-&

[10] Catalytic combustion of volatile organic compounds on gold/cerium oxide catalysts [J].

Scirè, S ;

Minicò, S ;

Crisafulli, C ;

Satriano, C ;

Pistone, A .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 40 (01) :43-49

← 1 2 →