Synthesis and characterization of porous carbon-MoS2 nanohybrid materials for charge-enhanced electrocatalysis

Journal article (2016)

Authors

L. Rassaei OLD ChemE/Organic Materials and Interfaces
Ernst J. R. Sudhölter OLD ChemE/Organic Materials and Interfaces
Research Group
OLD ChemE/Organic Materials and Interfaces
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Published Date

25-01-2016

Language

English

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Research Group

OLD ChemE/Organic Materials and Interfaces

Abstract

Porous carbon nanohybrids are promising materials as high-performance electrodes for both sensing and energy conversion applications. This is mainly due to their high specific surface area and specific physicochemical properties. Here, new porous nanohybrid materials are developed based on exfoliated MoS2 nanopetals and either negatively charged phenylsulfonated carbon nanoparticles or positively charged sulfonamide functionalized carbon nanoparticles. MoS2 nanopetals not only act as a scaffold for carbon nanoparticles to form 3D porous hierarchical architectures but also result in well-separated electrochemical signals for different compounds. The characteristics of the new carbon nanohybrid materials are studied by dynamic light scattering, zeta potential analysis, high resolution X-ray photoelectron spectroscopy, transmission electron microscopy, scanning electron microscopy, infrared spectroscopy and electrochemistry. The new hybrid materials show superior charge transport capability and electrocatalytic activity toward selected biologically relevant compounds compared to earlier reports on porous carbon electrodes.