Rational synthesis of Pd nanoparticle-embedded reduced graphene oxide frameworks with enhanced selective catalysis in water

Nanoscale
Jian LiuBaodui Wang

Abstract

A three-dimensional (3D) Pd-reduced graphene oxide framework (Pd-rGOF) with hierarchical macro- and mesoporous structures has been developed via covalence- and coordination-assisted self-assembly approach. In this facile fabrication process, GO was first cross-linked with triethylene tetramine (TETA) to form 3D GOF, in which well-dispersed and ultrasmall Pd nanoparticles (NPs) in situ grew and embedded the framework. The obtained nanopores, 3D Pd-rGOF, can act as nanoreactors to help the reaction substrates thoroughly contact with the surface of Pd NPs, thereby exhibiting high activity and selectivity toward the Tsuji-Trost reaction in water, with 99% conversion and selectivity for most substrates. Moreover, the 3D Pd-rGOF catalyst can be reused more than ten times without significant loss of activity, rendering this catalyst long-term stability. The abovementioned observations make the rGOF a universal platform to coordinate other noble metal ions (NM) to construct desired NM-rGOF nanocatalysts with improved activity, selectivity, and durability that can be used in a broad range of practical applications.

References

Jan 1, 2008·Nano Research·Xiaoming SunHongjie Dai
Oct 12, 2010·Angewandte Chemie·Jacob W BurressTaner Yildirim
May 28, 2011·Journal of the American Chemical Society·Vincent C TungJiaxing Huang
Aug 17, 2012·Nanoscale·Chun Li, Gaoquan Shi
Feb 19, 2013·Advanced Materials·Han HuJieshan Qiu

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Citations

Apr 26, 2017·Chemical Communications : Chem Comm·A LlevotM A R Meier
Dec 9, 2017·Chemical Reviews·Taku KitanosonoShu Kobayashi

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