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Title
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Antimony-Modified Platinum Catalysts for the Selective and Stable Oxidation of Cinnamyl Alcohol with Hydrogen Peroxide
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Creator
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Langa Sandile
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Nyamunda Benias C
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Heveling Josef
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Abstract
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Platinum-antimony and platinum-bismuth deposited on activated carbon were prepared by various methods. The materials were characterized by nitrogen physisorption, X-ray diffraction and high-resolution transmission electron microscopy. The samples were tested as catalysts for the selective oxidation of cinnamyl alcohol to cinnamaldehyde, using H2O2 as the oxidant. 5%Pt–5%Sb/ C shows selectivities in excess of 98 % in both water and toluene as the reaction medium. In comparison, state-of-the art bismuth catalysts give selectivities of 73–95 % (in water) and 84 % (in toluene)
Keywords: Selective oxidation Hydrogen peroxide Platinum Antimony Sonication Cinnamyl alcohol Cinnamaldehyde
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Date
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2016
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Source
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Catalysis Letters
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identifier
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doi 10.1007/s10562-015-1689-y
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volume
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146
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pages
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755-762
