THE EFFECT OF CERIUM ON IRON-OXIDE CATALYSTS FOR DEHYDROGENATION OF ETHYLBENZENE

被引：8

作者：

HU, B ^{[1
]}

ZENG, Z ^{[1
]}

YANG, X ^{[1
]}

MAO, L ^{[1
]}

EUANG, Y ^{[1
]}

机构：

[1] SHANGHAI RES INST PETROCHEM TECHNOL,SHANGHAI 200137,PEOPLES R CHINA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1993年 / 76卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(93)95171-Z

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In situ Mossbauer study of ethylbenzene dehydrogenation on potassium-promoted iron oxide containing different contents of cerium oxide has been investigated. The results show that the addition of cerium to the Fe--K systems decreased the hyperfine magnetic fields for Fe 3 + ions, due to the near neighbor and next near neighbor of Fe3+ ions to be partially occupied by cerium ions. In addition, the presence of cerium enhanced the stability of the Fe-K phase and reducibility of Fe oxide to Fe3O4 at the reaction condition.

引用

页码：178 / 179

页数：2

共 4 条

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HIRANO, T .

APPLIED CATALYSIS, 1986, 28 (1-2) :119-132

[2] STUDIES OF POTASSIUM FERRITES .4. MOSSBAUER-EFFECT AND CONDUCTIVITY STUDIES OF MIXED FE-GA AND FE-AL COMPOUNDS OF FORMULA K1+XM11O17 - ELECTRON HOPPING AND OXIDATION AT ROOM-TEMPERATURE [J].

HOWE, AT ;

DUDLEY, GJ .

JOURNAL OF SOLID STATE CHEMISTRY, 1979, 30 (02) :157-170

[3]

WEUN S, 1990, KEXUE TONGBAO, V1, P22

[4]

YANG X, 1992, HYPERFINE INTERACT, V69, P863

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