PRODUCTION OF NI-RU BIMETALLIC CATALYSTS AND MATERIALS BY THERMAL AND CHEMICAL DECOMPOSITION OF A TETRANUCLEAR BIMETALLIC CARBONYL CLUSTER

被引：10

作者：

ARMIGLIATO, A

BIGI, S

MOGGI, P

PAPADOPULOS, S

PREDIERI, G

SALVIATI, G

SAPPA, E

机构：

[1] UNIV PARMA,CNR,CTR STUDIO STRUTT DIFFRATTOMETR,I-43100 PARMA,ITALY

[2] CNR,IST LAMEL,I-40126 BOLOGNA,ITALY

[3] UNIV MODENA,IST MINERAL & PETROL,I-41100 MODENA,ITALY

[4] CNR,IST MASPEC,I-43100 PARMA,ITALY

[5] UNIV TURIN,DIPARTIMENTO CHIM INORGAN CHIM FIS & CHIM MAT,I-10125 TURIN,ITALY

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1991年 / 29卷 / 1-4期

关键词：

D O I：

10.1016/0254-0584(91)90021-L

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The tetrahedral heterobimetallic cluster (C5H5)NiRu3H3(CO)9, 1, when decomposed on KOH-modified gamma-alumina, produces an effective heterogeneous catalyst for ammonia synthesis. Bimetallic particles have been evidenced on the support surface by analytical electron microscopy; their main size is 4.0 nm and their Ni/Ru atomic ratio is practically the same as that of the starting cluster. The treatment of unsupported 1 with alcoholic KOH gives a black, conductive, amorphous alloy powder. In this case, the ultrafine and bimetallic nature of the individual particles was also revealed by analytical TEM investigations.

引用

页码：251 / 260

页数：10

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