Characterization of Supported Metal Catalysts by Imaging, Microdiffraction and Microanalysis Techniques

摘要

It is the purpose of this paper to highlight and illustrate the techniques in analytical electron microscopy which can be used to study the structural and morphological features of the catalysts. The use of such techniques is increasing rapidly because of the great potential for characterizing the size, morphology, and structural defects in the metallic particles and also because of the contributions microanalysis can make to understanding interactions between the metal particles and the support materials. Certain limitations of these techniques are also discussed in reference to analysis of catalytic systems. The catalyst samples discussed in this paper are 11.9 % Ni/SiO sub 2 , 14.2 % Ni/MgSiO sub 3 , phosphorous-reduced colloidal gold, sodium-citrate-reduced colloidal gold, and C-150-1-01 catalyst supplied by United Catalyst containing approximately 52% nickel on a silica support. 12 references, 6 figures, 1 table. (ERA citation 10:011439)