Abstract
Nanometer-sized particles of MoS2 were synthesized on mica and MoS2 surfaces and observed using an atomic force microscope. Molybdenum oxide was deposited on each substrate and sulfided with H2S gas to simulate catalysts used in petroleum refining. The height of the sulfided particles was regulated to be single or double layers of S–Mo–S suggesting basal-bonded, flat-lying MoS2. When Ni metal was simultaneously deposited with molybdenum oxide, the sulfided particles remained basal-bonded and the number of stacked layers increased by one or two.
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