Biopolymer-stabilized Pt nanoparticles colloid: a highly active and recyclable catalyst for biphasic catalysis

  • Yujia Wang
  • Yueyue Shen
  • Yunfei Qiu
  • Ting Zhang
  • Yang Liao
  • Shilin Zhao
  • Jun Ma
  • Hui Mao
Research Paper


Noble metal nanoparticles are promising candidates to replace conventional bulk counterparts owing to their high activity and selectivity. To enable catalyst recovery, noble metal nanoparticles are often supported onto solid matrices to prepare heterogeneous catalyst. Although recycle of noble metal nanoparticles is realized by heterogenization, a loss of activity is usually encountered. In the present investigation, Pt nanoparticles with tunable particle size (1.85–2.80 nm) were facilely prepared by using polyphenols as amphiphilic stabilizers. The as-prepared Pt nanoparticles colloid solution could be used as highly active catalyst in aqueous–organic biphasic catalysis. The phenolic hydroxyls of polyphenols could constrain Pt nanoparticles in aqueous phase, and simultaneously, the aromatic scaffold of polyphenols ensured effective interactions between substrates and Pt nanoparticles. As a consequence, the obtained polyphenols-stabilized Pt nanoparticles exhibited high activity and cycling stability in biphasic hydrogenation of a series of unsaturated compounds. Compared with conventional heterogeneous Pt-C and Pt-Al2O3 catalysts, polyphenols-stabilized Pt nanoparticles showed obvious advantage both in activity and cycling stability.


Biphasic catalysis Polyphenols Pt nanoparticles colloid Activity Cycling stability 



This work was financially supported by National Natural Science Foundation of China (21506134, 21406247) and Foundation of Sichuan Educational Committee (16ZA0051). We also thank the support of the Engineering Research Center for the Development of Farmland Ecosystem Service Functions, Sichuan Province Institutions of Higher Education.


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Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  1. 1.College of Chemistry and Materials ScienceSichuan Normal UniversityChengduChina
  2. 2.Key Laboratory of land Resources Evaluation and Monitoring in Southwest, Sichuan Normal University, Ministry of EducationSichuan Normal UniversityChengduChina

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