SURFACE CHARACTERIZATION AND CATALYTIC PROPERTIES OF LA(1-X)A(X)MO(3) PEROVSKITE-TYPE OXIDES .1. STUDIES ON LA(0.95)BA(0.05)MO(3) (M-NUMBER-MN, FE OR CO) OXIDES

被引：64

作者：

GUNASEKARAN, N ^{[1
]}

RAJADURAI, S ^{[1
]}

CARBERRY, JJ ^{[1
]}

BAKSHI, N ^{[1
]}

ALCOCK, CB ^{[1
]}

机构：

[1] UNIV NOTRE DAME, DEPT ELECT ENGN, CTR SENSOR MAT, NOTRE DAME, IN 46556 USA

来源：

SOLID STATE IONICS | 1994年 / 73卷 / 3-4期

关键词：

BA SUBSTITUTED PEROVSKITES; XPS STUDIES; O-2; PROPERTIES; CATALYSIS; METHANE OXIDATION;

D O I：

10.1016/0167-2738(94)90046-9

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：

Perovskite type La(0.95)Ba(0.05)MO(3) (M = Mn, Fe or Co) oxides were prepared by a liquid precursor method and characterized by X-ray diffraction, oxygen desorption, and X-ray photoelectron spectroscopic studies. XPS analysis revealed the characteristic changes of the O1s peak (similar to 530 eV) resulting from the substitution of Ba in LaMO(3). The methane deep oxidation reaction was carried out in a plug flow reactor with 2% CH4 in air in the temperature range of 200 to 700 degrees C. Among the three compounds, the Mn perovskite showed the lowest temperature for the methane conversion with a maximum at 700 degrees C. Temperature programmed desorption (TPD) experiments also indicated the maximum oxygen desorption for Mn perovskite in this temperature range. The results for oxygen chemisorption and surface area of these samples were found to be consistent with the observed variations in the catalytic oxidation of methane.

引用

页码：289 / 295

页数：7

共 23 条

[1] ALCOCK CB, 1993, J CATAL, V143, P553
[2] CATALYTIC COMBUSTION OF METHANE OVER VARIOUS PEROVSKITE-TYPE OXIDES
ARAI, H
YAMADA, T
EGUCHI, K
SEIYAMA, T
[J]. APPLIED CATALYSIS, 1986, 26 (1-2): : 265 - 276
[3] OXIDATIVE COUPLING OF METHANE OVER OXIDE-SUPPORTED BARIUM CATALYSTS
DISSANAYAKE, D
LUNSFORD, JH
ROSYNEK, MP
[J]. JOURNAL OF CATALYSIS, 1993, 143 (01) : 286 - 298
[4] CARBON-MONOXIDE AND METHANE OXIDATION PROPERTIES OF OXIDE SOLID-SOLUTION CATALYSTS
DOSHI, R
ALCOCK, CB
GUNASEKARAN, N
CARBERRY, JJ
[J]. JOURNAL OF CATALYSIS, 1993, 140 (02) : 557 - 563
[5] EVALUATION OF SOME COBALT AND NICKEL-BASED PEROVSKITES PREPARED BY FREEZE-DRYING AS COMBUSTION CATALYSTS
KIRCHNEROVA, J
KLVANA, D
VAILLANCOURT, J
CHAOUKI, J
[J]. CATALYSIS LETTERS, 1993, 21 (1-2) : 77 - 87
[6] ELECTRONIC-STRUCTURE OF LANTHANUM PEROVSKITES WITH 3D TRANSITION-ELEMENTS
LAM, DJ
VEAL, BW
ELLIS, DE
[J]. PHYSICAL REVIEW B, 1980, 22 (12): : 5730 - 5739
[7] CATALYTIC PROPERTIES OF LA1-XSRXBO3 (B = MN, FE, CO, NI) FOR TOLUENE OXIDATION
LIANG, JJ
WENG, HS
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1993, 32 (11) : 2563 - 2572
[8] XPS CHARACTERIZATION OF REDUCED LACOO3 PEROVSKITE
LOMBARDO, EA
TANAKA, K
TOYOSHIMA, I
[J]. JOURNAL OF CATALYSIS, 1983, 80 (02) : 340 - 349
[9] X-RAY PHOTOELECTRON SPECTROSCOPIC STUDIES OF IRON-OXIDES
MCINTYRE, NS
ZETARUK, DG
[J]. ANALYTICAL CHEMISTRY, 1977, 49 (11) : 1521 - 1529
[10] CATALYTIC PROPERTIES OF LA1-XSRXMNO3,LA1-XCEXMNO3,LA1-XHFXMNO3
NITADORI, T
KURIHARA, S
MISONO, M
[J]. JOURNAL OF CATALYSIS, 1986, 98 (01) : 221 - 228

← 1 2 3 →