PREPARATION AND CHARACTERIZATION OF CATIO3-BASED PEROVSKITIC OXIDES AS CATALYSTS FOR PARTIAL OXIDATION OF LIGHT-HYDROCARBONS

被引：25

作者：

ANDERSEN, AG ^{[1
]}

HAYAKAWA, T ^{[1
]}

TSUNODA, T ^{[1
]}

ORITA, H ^{[1
]}

SHIMIZU, M ^{[1
]}

TAKEHIRA, K ^{[1
]}

机构：

[1] SENTER IND FORSKNING,POB 124,BLINDERN,N-0314 OSLO,NORWAY

来源：

CATALYSIS LETTERS | 1993年 / 18卷 / 1-2期

关键词：

PEROVSKITES; OXIDATIVE COUPLING OF METHANE; XRD; SEM; TGA; BET; CATIO3-BASED CATALYST; SOL GEL METHOD;

D O I：

10.1007/BF00769496

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 series of perovslcites of the formula Ca1-xSrxTi1-yMyO3-delta, M=Fe, Co, Cr or Ni, x = 0-1, y = 0-0.6, has been synthesized by a modified sol-gel method using citrate. Several of these materials were proved to be stable under operating conditions in reducing atmospheres of air and hydrocarbons. An outline of the synthesis procedure is given, together with the results of XRD, SEM, BET, TG, DTA and IR characterization before and after catalytic testing. The solubility of Ni and Cr in this perovskite was very limited, and the solubility of Co decreased abruptly above 1173 K. The solubility range of Ca and Sr on alkaline earth sites is 100%.

引用

页码：37 / 48

页数：12

共 23 条

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