Research Article

Facile and Green Synthesis of Clean Porous Pd/2D-material Nanocomposites with Improved Catalytic Properties in 4-nitrophenol Reduction Reaction - The First Part

Author(s):

Kai Ke, Haiyang Liu, Xin Chen*, Lingling Wang, Jiali Fang, Yulian Wu, Chuanzhen Wang, Chang Li and Xiaoxiang Yang   Pages 252 - 259 ( 8 )

Abstract:

Background: The development of environment-friendly and cost-effective palladium( Pd) based nanocomposite is of high interest for catalytic applications.

Objective and Methods: In this paper, a porous Pd/two-dimensional-material (graphene oxide (GO) and reduced graphene oxide (rGO)) nanocomposite was synthesized with a green and facile method, without adding any additional reductant, surfactant and special solvent.

Results: The catalytic activity of the Pd/rGO composite was investigated using the 4-nitrophenol (4-NP) reduction reaction in the presence of sodium borohydride (NaBH4). The results showed that the Pd/rGO nanocomposite not only exhibited much higher catalytic activity than the pure porous Pd catalyst but also showed a very good catalytic stability due to the less Pd aggregation and increased local 4-NP concentration arose from rGO bonding attraction. Besides, the Pd-rGO nanocomposite showed a kapp value of 0.383 min-1, which was 13 times higher than the pure Pd (0.0292 min-1), as well as a reliable 4-NP conversion rate of over 97%.

Conclusion: This study may provide a route for green-design and synthesis of heterogeneous catalyst composites with lower cost and better performance.

Keywords:

Palladium, catalyst, porous structure, menthol oxidation, 4-nitrophenol reduction, compound material.

Affiliation:

Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237

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