A novel CoOx/La-modified-CeO2 formulation for powdered and washcoated onto cordierite honeycomb catalysts with application in VOCs oxidation

被引：62

作者：

Gomez, Diana M. ^{[1
]}

Gatica, Jose M. ^{[1
]}

Hernandez-Garrido, Juan C. ^{[1
]}

Cifredo, Gustavo A. ^{[1
]}

Montes, Mario ^{[2
]}

Sanz, Oihane ^{[2
]}

Manuel Rebled, Jose ^{[3
,4
]}

Vidal, Hilario ^{[1
]}

机构：

[1] Univ Cadiz, Dept Ciencia Mat & Ingn Met & Quim Inorgan, Puerto Real 11510, Spain

[2] Univ Pais Vasco UPV EHU, UFI 11 56, Dept Quim Aplicada, San Sebastian 20080, Spain

[3] Univ Barcelona, LENS MIND Dept Elect IN2UB, E-08028 Barcelona, Spain

[4] CSIC, Inst Ciencia Mat Barcelona, Madrid 08193, Spain

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2014年 / 144卷

关键词：

Cobalt catalysts; La-modified-CeO2; Honeycomb monolith; VOCs oxidation; Washcoating; VOLATILE ORGANIC-COMPOUNDS; ALUMINA WASHCOATS; TRANSITION-METAL; MIXED OXIDES; COMBUSTION; TEMPERATURE; MONOLITHS; REMOVAL; TOLUENE; ABATEMENT;

D O I：

10.1016/j.apcatb.2013.07.045

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：

A novel Co (15 wt.%)/La-modified-CeO2 catalyst was prepared for the oxidation of toluene and ethyl acetate, showing lower light-off temperature (around 20-40 degrees C) than that of a Pt (3 wt.%)/La-CeO2 catalyst under the same experimental conditions. Upon washcoating onto cordierite it was still more active than the noble metal reference. The activity remained stable even after 80 h of reaction. Adherence tests indicated a 98% stability of the washcoat, while SEM-EDS study evidenced its homogeneous distribution on the cordierite. ICP analysis and X-ray diffraction demonstrated that the composition and cobalt phase (Co3O4) of the powdered catalyst were the same in the washcoat. Moreover textural properties improved according to N-2 physisorption studies due to inclusion of colloidal alumina in the slurry. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：425 / 434

页数：10

共 41 条

[21] Catalytic performance of Co3O4/CeO2 and Co3O4/CeO2-ZrO2 composite oxides for methane combustion:: Influence of catalyst pretreatment temperature and oxygen concentration in the reaction mixture [J].

Liotta, L. F. ;

Di Carlo, G. ;

Pantaleo, G. ;

Deganello, G. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 70 (1-4) :314-322

[22] Co3O4/CeO2 composite oxides for methane emissions abatement:: Relationship between Co3O4-CeO2 interaction and catalytic activity [J].

Liotta, L. F. ;

Di Carlo, G. ;

Pantaleo, G. ;

Venezia, A. M. ;

Deganello, G. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 66 (3-4) :217-227

[23] Catalytic Removal of Toluene over Co3O4-CeO2 Mixed Oxide Catalysts: Comparison with Pt/Al2O3 [J].

Liotta, L. F. ;

Ousmane, M. ;

Di Carlo, G. ;

Pantaleo, G. ;

Deganello, G. ;

Boreave, A. ;

Giroir-Fendler, A. .

CATALYSIS LETTERS, 2009, 127 (3-4) :270-276

[24] Cobalt catalysts promoted with cerium and lanthanum applied to partial oxidation of methane reactions [J].

Lucredio, Alessandra F. ;

Jerkiewicz, Gregory ;

Assaf, Elisabete M. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 84 (1-2) :106-111

[25] A mesoporous oxidation catalyst La-Co-Ce-O prepared by citric acid complexation and organic template decomposition method [J].

Luo, Jin-yong ;

Meng, Ming ;

Qian, Ying ;

Zou, Zhi-Qiang ;

Xie, Ya-ning ;

Hu, Tian-dou ;

Liu, Tao ;

Zhang, Jing .

CATALYSIS LETTERS, 2007, 116 (1-2) :50-56

[26] ENHANCED OXYGEN STORAGE CAPACITY OF CERIUM OXIDES IN CEO2/LA2O3/AL2O3 CONTAINING PRECIOUS METALS [J].

MIKI, T ;

OGAWA, T ;

HANEDA, M ;

KAKUTA, N ;

UENO, A ;

TATEISHI, S ;

MATSUURA, S ;

SATO, M .

JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (16) :6464-6467

[27] Catalysis in VOC Abatement [J].

Ojala, Satu ;

Pitkaaho, Satu ;

Laitinen, Tiina ;

Koivikko, Niina Niskala ;

Brahmi, Rachid ;

Gaalova, Jana ;

Matejova, Lenka ;

Kucherov, Alexei ;

Paivarinta, Sanna ;

Hirschmann, Christian ;

Nevanpera, Tuomas ;

Riihimaki, Markus ;

Pirila, Minna ;

Keiski, Riitta L. .

TOPICS IN CATALYSIS, 2011, 54 (16-18) :1224-1256

[28] Combustion of non-halogenated volatile organic compounds over group VIII metal catalysts [J].

Papaefthimiou, P ;

Ioannides, T ;

Verykios, XE .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1997, 13 (3-4) :175-184

[29] VOC removal: investigation of ethylacetate oxidation over supported Pt catalysts [J].

Papaefthimiou, P ;

Ioannides, T ;

Verykios, XE .

CATALYSIS TODAY, 1999, 54 (01) :81-92

[30] Influence of the surface adsorption-desorption processes on the ignition curves of volatile organic compounds (VOCs) complete oxidation over supported catalysts [J].

Paulis, M ;

Gandía, LM ;

Gil, A ;

Sambeth, J ;

Odriozola, JA ;

Montes, M .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2000, 26 (01) :37-46

← 1 2 3 4 5 →