The quest for selective heterogeneous hydrogenation catalysts is state of the art research. We present a simple surface modification method for Pt/TiO 2 catalysts employing organic thiols for the liquid phase selective hydrogenation of 4-nitrostyrene. Our modified catalyst shows a 100% switch of selectivity to 4-aminostyrene at conversion levels close to 100%.
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Makosch et al. (2012) studied this question.
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