CAYALYTIC AND PHYSICOCHEMICAL PROPERTIES OF LA1-XSRXCOO3 PEROVSKITES

被引：16
|
作者：
ISUPOVA, LA
SADYKOV, VA
IVANOV, VP
RAR, AA
TSYBULYA, SV
ANDRIANOVA, MP
KOLOMILCHUK, VN
PETROV, AN
KONONCHUK, OF
机构：
[1] BORESKOV INST CATALYSIS,NOVOSIBIRSK 630090,RUSSIA
[2] URAL STATE UNIV,SVERDLOVSK 620083,RUSSIA
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 1994年 / 53卷 / 01期
关键词：
D O I：
10.1007/BF02070135
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：
Catalytic properties of strontium-substituted lanthanum cobaltites La1-xSrxCoO3 in the reaction of CO oxidation were compared with the data about chemical composition of the surface and bulk defect structure. It was found that (1) the initial catalytic activity correlates with the cobalt concentration on the surface; (2) surface composition differs from the bulk one; (3) the steady-state activity is proportional to the density of bulk extended defects. Under our experimental conditions no role of point defects was noted.
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页码：223 / 229
页数：7
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