摘要:

Some bismuth-containing oxides, such as bismuth molybdates, are known to be effective catalysts for so-called allylic oxidation of C3-C4olefins including partial oxidation to unsaturated aldehyde, oxidative dehydrogenation to diolefin, and ammoxidation to corresponding nitrile. This type of catalyst is well studied and repeatedly reviewed [1–3]. Its high effectiveness can be interpreted within a dual-site concept according to which hydrocarbon adsorbs on an active site associated with one of the metal oxide components while oxygen adsorbs on an active site associated with another metal oxide component. For instance, the authors [4, 5] assume a bismuth center to be responsible for the hydrocarbon conversion to an allylic species which then reacts further at a molybdenum site to produce aldehyde.

ISSN:0161-4940    

DOI:10.1080/01614949408013919

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The main industrial methods for the production of styrene and α-methylstyrene are the dehydrogenation of ethylbenzene and isopropylbenzene using mixed oxide catalysts:

ISSN:0161-4940    

DOI:10.1080/01614949408013920

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

High aromatic content in diesel fuel has been recognized both to lower the fuel quality and to contribute significantly to the formation of undesired emissions in exhaust gases [1, 2]. Because of the health hazards associated with these emissions, environmental regulations governing the composition of diesel fuels are being tightened in both Europe and the United States, leading to limitations on aromatics [3, 4].

ISSN:0161-4940    

DOI:10.1080/01614949408013921

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Zeolites and molecular sieves have been extensively studied and applied in different fields. Their specific crystalline structure and composition make it possible to obtain high-activity stable catalyst systems for a wide range of chemical reactions. There are many investigations on the structural characteristics and adsorption and catalytic properties of zeolites and molecular sieves as well as on the relation between the different properties. The nature of active sites in zeolite catalysts and the mechanism of catalytic processes on their surface belong to the most important problems of the investigations.

ISSN:0161-4940    

DOI:10.1080/01614949408013922

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The preparation and characterization of supported bimetallic clusters has been an active area of research following the initial pioneering efforts of Sinfelt in the late 1960s and early 1970s [1–3]. Because of the importance of supported bimetallic and multimetallic catalysts in industrial applications such as petroleum reforming and the control of automotive exhaust emissions, research on better ways of synthesizing and characterizing these catalytic materials is continuing to advance, as evidenced by the very large number of research papers which have recently appeared in the literature. Of particular interest are the preparative variables which control the formation of bimetallic particles.

ISSN:0161-4940    

DOI:10.1080/01614949408013923

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0161-4940    

DOI:10.1080/01614949408013918

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor