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We compare catalytic methanol oxidation reactions in the gas and liquid phases by focusing on the kinetic effects of platinum nanoparticle size and metal/support interactions. Under the reaction conditions at 60 °C, methanol can be oxidized to multiple products including carbon dioxide (full-oxidation product), formaldehyde (partial-oxidation product) and methyl formate (partial-oxidation and coupling...
The effect of pretreatment (O2 or H2) and catalyst history was investigated through room temperature ethylene hydrogenation reaction over several types of platinum based nanoparticle systems: 1.6 nm Pt/TTAB, 4.1 nm Pt/PVP (with and without UV treatment), 4.1 nm Pt with a silica shell, and e-beam evaporated Pt thin films were tested. The H2 pretreatment resulted in the absence of activity. However,...
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