Studies on synthesis and characterization of Co3O4 powders for CO oxidation

被引:0
作者
Berger, D.
Morfin, F.
Matei, C.
Volta, J. C.
机构
[1] Univ Politehn Bucuresti, Bucharest 011061, Romania
[2] Inst Rech Catalyse, CNRS, F-69626 Villeurbanne, France
来源
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2007年 / 9卷 / 05期
关键词
Co3O4; CO oxidation; precipitation method; nanopowders;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Co3O4 nanopowders were synthesised by thermal treatment of different precursors obtained by precipitation at constant pH value using cobalt nitrate or sulphate as cobalt salt and ammonia or potassium hydroxide as precipitating agent. The effect of different parameters as reaction and calcination temperature, type of precipitating agent and cobalt salt on Co3O4 crystallite size and specific surface area values is discussed. Co3O4 samples with the highest surface area values were tested in the CO oxidation.
引用
收藏
页码:1540 / 1545
页数:6
相关论文
共 18 条
[1]   THE POINT OF ZERO CHARGE OF CO3O4 PREPARED BY THERMAL-DECOMPOSITION OF BASIC COBALT CARBONATE [J].
ARDIZZONE, S ;
SPINOLO, G ;
TRASATTI, S .
ELECTROCHIMICA ACTA, 1995, 40 (16) :2683-2686
[2]   A DFT study on CO oxidation over Co3O4 [J].
Broqvist, P ;
Panas, I ;
Persson, H .
JOURNAL OF CATALYSIS, 2002, 210 (01) :198-206
[3]   PRECIPITATION OF SPHERICAL CO3O4 PARTICLES [J].
FURLANETTO, G ;
FORMARO, L .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1995, 170 (01) :169-175
[4]   On the catalytic activity of Co3O4 in low-temperature CO oxidation [J].
Jansson, J ;
Palmqvist, AEC ;
Fridell, E ;
Skoglundh, M ;
Österlund, L ;
Thormählen, P ;
Langer, V .
JOURNAL OF CATALYSIS, 2002, 211 (02) :387-397
[5]   A mechanistic study of low temperature CO oxidation over cobalt oxide [J].
Jansson, J ;
Skoglundh, M ;
Fridell, E ;
Thormählen, P .
TOPICS IN CATALYSIS, 2001, 16 (1-4) :385-389
[6]   Moderate temperature synthesis of nanocrystalline Co3O4 via gel hydrothermal oxidation [J].
Jiang, Y ;
Wu, Y ;
Xie, B ;
Xie, Y ;
Qian, YT .
MATERIALS CHEMISTRY AND PHYSICS, 2002, 74 (02) :234-237
[7]   Preparation of Co3O4 nanoparticles by a polymer combustion route [J].
Jiu, JT ;
Ge, Y ;
Li, XN ;
Nie, L .
MATERIALS LETTERS, 2002, 54 (04) :260-263
[8]   In situ FTIR study of cobalt oxides for the oxidation of carbon monoxide [J].
Lin, HK ;
Wang, CB ;
Chiu, HC ;
Chien, SH .
CATALYSIS LETTERS, 2003, 86 (1-3) :63-68
[9]   CoOx catalysts supported on alumina and alumina-baria:: influence of the support on the cobalt species and their activity in NO reduction by C3H6 in lean conditions [J].
Liotta, LF ;
Pantaleo, G ;
Macaluso, A ;
Di Carlo, G ;
Deganello, G .
APPLIED CATALYSIS A-GENERAL, 2003, 245 (01) :167-177
[10]   Fabrication of Co3O4 nanorods by calcination of precursor powders prepared in a novel inverse microemulsion [J].
Liu, YK ;
Wang, GH ;
Xu, CK ;
Wang, WZ .
CHEMICAL COMMUNICATIONS, 2002, (14) :1486-1487