THE STRUCTURE CHARACTERIZATION OF MOS2 AND WS2 CATALYSTS BY HREM

The microstructure of molybdenum disulphide and tungsten disulphide un supported catalysts has been characterized by high-resolution electron microscopy. Lattice resolution of edge planes shows the typical layer ed structure, however in this case, additional plane curvature and dis locations am seen. The material shows a micro-domain arrangement where planes like (101), (103) and (105) are identified based in the interp lanar spacings. In other cases the (002) basal plane was found to exhi bit plane shifts or kinks.