Use of commercial carbons as template for the preparation of high specific surface area perovskites

被引：1

作者：

de Lima, Rita K. C. ^{[1
]}

da Silva, Edilene D. ^{[1
]}

Urquieta-Gonzalez, Ernesto A. ^{[1
]}

机构：

[1] Univ Fed Ceara, Dept Chem Engn, Campus Pici,Bloco 709, BR-60455760 Fortaleza, Ceara, Brazil

来源：

SCIENTIFIC BASES FOR THE PREPARATION OF HETEROGENEOUS CATALYSTS: PROCEEDINGS OF THE 10TH INTERNATIONAL SYMPOSIUM | 2010年 / 175卷

关键词：

Perovskites; Nanocasting; Commercial Carbons; NO reduction; CO; OXIDES; ROUTE; NO; CO;

D O I：

10.1016/S0167-2991(10)75130-2

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

LaFe1-xCoxO3 (x = 0 or 0.4) perovskites were obtained by nanocasting using Fluka 05120 and Black Pearls 2000 commercial carbons, which act as hard template during the gel formation and subsequently limiting the particle growing during the perovskite formation. Perovskites with the same nominal composition were also conventionally prepared. The results clearly showed that both commercial carbons was efficient to prepare perovskites with nanosized nature and specific surface area substantially improved. In addition, catalytic tests in the reduction of NO with CO evidenced the better activity of the nanocast perovskites.

引用

页码：657 / 660

页数：4

共 6 条

[1] High specific surface area LaFeCo perovskites-Synthesis by nanocasting and catalytic behavior in the reduction of NO with CO [J].

de Lima, R. K. C. ;

Batista, M. S. ;

Wallau, M. ;

Sanches, E. A. ;

Mascarenhas, Y. P. ;

Urquieta-Gonzalez, E. A. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 90 (3-4) :441-450

[2] Characterization and catalytic investigation of NO plus CO reaction on perovskites of the general formula LaxM1-xFeO3 (M = Sr and/or Ce) prepared via a reverse micelles microemulsion route [J].

Giannakas, A. E. ;

Leontiou, A. A. ;

Ladavos, A. K. ;

Pomonis, P. J. .

APPLIED CATALYSIS A-GENERAL, 2006, 309 (02) :254-262

[3] EVALUATION OF SOME COBALT AND NICKEL-BASED PEROVSKITES PREPARED BY FREEZE-DRYING AS COMBUSTION CATALYSTS [J].

KIRCHNEROVA, J ;

KLVANA, D ;

VAILLANCOURT, J ;

CHAOUKI, J .

CATALYSIS LETTERS, 1993, 21 (1-2) :77-87

[4] High-surface-area oxides obtained by an activated carbon route [J].

Schwickardi, M ;

Johann, T ;

Schmidt, W ;

Schüth, F .

CHEMISTRY OF MATERIALS, 2002, 14 (09) :3913-3919

[5] PARTIAL OXIDATION OF METHANE TO SYNTHESIS GAS OVER (CA,SR)(TI,NI) OXIDES [J].

TAKEHIRA, K ;

HAYAKAWA, T ;

HARIHARA, H ;

ANDERSEN, AG ;

SUZUKI, K ;

SHIMIZU, M .

CATALYSIS TODAY, 1995, 24 (03) :237-242

[6] STRUCTURE AND REACTIVITY OF PEROVSKITE-TYPE OXIDES [J].

TEJUCA, LG ;

FIERRO, JLG ;

TASCON, JMD .

ADVANCES IN CATALYSIS, 1989, 36 :237-328

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