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Influence of Pt Particle Size on the Activity of Pt/AC Catalyst in Selective Oxidation of Glycerol to Lactic Acid

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Abstract

The size effect of Pt particles on selective oxidation of glycerol to lactic acid was investigated over 1.0 wt% Pt/activated carbon catalysts in base solutions. A series of Pt/activated carbon catalysts with Pt particle size ranging from 10.2 to 3.8 nm were prepared by simply verifying the deposition–precipitation temperature from 0 to 80 °C, which were characterized by XRD, CO pulse chemisorption, H2–O2 titration, TEM and zeta potential analyses. The Pt particle size showed evident impact on the pseudo turnover frequency of the catalyst, with the optimal activity achieved over medium-sized Pt particles. The lactic acid selectivity was less obviously affected by the Pt particle size. Meanwhile, the Pt particle size effect would be altered when factors including base type changed.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (21176236).

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Authors and Affiliations

  1. Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China

    Chen Zhang, Tao Wang & Yunjie Ding

  2. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China

    Yunjie Ding

  3. University of Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China

    Chen Zhang

Authors
  1. Chen Zhang
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  2. Tao Wang
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  3. Yunjie Ding
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Correspondence to Tao Wang or Yunjie Ding.

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Zhang, C., Wang, T. & Ding, Y. Influence of Pt Particle Size on the Activity of Pt/AC Catalyst in Selective Oxidation of Glycerol to Lactic Acid. Catal Lett 147, 1197–1203 (2017). https://doi.org/10.1007/s10562-017-2016-6

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  • DOI: https://doi.org/10.1007/s10562-017-2016-6

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