MOSSBAUER EMISSION STUDY ON (57)Co DOPED CARBON-SUPPORTED Ni AND Ni-Mo SULFIDE HYDROTREATING CATALYSTS. THE INFLUENCE OF PHOSPHORUS ON THE STRUCTURE

被引：15

作者：

Craje, M. W. J. ^{[1
]}

de Beer, V. H. J. ^{[2
]}

van der Kraan, A. M. ^{[1
]}

机构：

[1] Delft Univ Technol, Interfac Reactor Inst, NL-2629 JB Delft, Netherlands

[2] Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands

来源：

CATALYSIS TODAY | 1991年 / 10卷 / 03期

关键词：

D O I：

10.1016/0920-5861(91)80014-Z

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In the present study it is demonstrated that Mossbauer emission spectroscopy (MES) can generate information on the various Ni phases present in sulfided Ni containing catalysts when a small amount of (57)Co is used as a probe for Ni. Application of MES to (57)Co:Ni(4.5)Mo(8.0)/C and (57)Co:Ni(5.6)/C revealed the formation of a so-called "Ni-MO-S" phase in the former and a bulk sulfide in the latter catalyst. After addition of phosphorus a "Ni-(thio)phosphate" phase is found to be formed in both catalysts. The relation between the structure of these catalysts and their activity for thiophene HDS and quinoline HDN is discussed.

引用

页码：337 / 344

页数：8

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