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We use scanning tunneling microscopy to investigate the morphology and atomic-scale edge structure of MoS2 nanoclusters synthesized on a gold single crystal as a model system for hydrodesulfurization catalysts using three different sulfur sources for sulfiding. Crystalline and triangularly shaped MoS2 nanoclusters are predominantly produced from sulfiding with H2S, dimethyl disulfide (DMDS) and dimethyl...
The nucleation and growth of Au and Ag nanoparticles on rutile TiO2(110)–(1 × 1) surfaces in different oxidation states is studied by means of photoelectron spectroscopy (PES) and scanning tunneling microscopy (STM). Au and Ag nanoparticles were found to bind much more strongly to oxidized TiO2(110) model supports than to reduced TiO2(110) surfaces, as directly revealed by STM. Detailed PES studies...
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