Chemistry and Physics of Alkali Metals on MoS2 Surfaces |
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Authors: | Park Ken T Kong Jie |
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Affiliation: | (1) Department of Physics, Baylor University, Waco, TX 76798-7316, USA |
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Abstract: | The interaction of alkali metal with surfaces has been of great interest to the community of catalysis since alkali metal can play an important role as a promoter. On alkali-doped MoS2, such a promotion effect of alkali metal has been exemplified in the direct synthesis of linear alcohols from CO and H2, where the alkali-doping switches the catalyst selectivity from methanation to alcohol synthesis. This paper reviews recent high-resolution X-ray photoelectron spectroscopy experiments that have provided direct
observation of electron transfer from alkali metals to a model single crystal MoS2 and the capture of the supra-valence electrons in the subsequent oxidation reactions. |
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Keywords: | molybdenum disulfide alkali metal promotion XPS charge transfer cesium lithium valence band destabilization oxidation reduction |
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