Three-dimensional graphene (3DG) prepared via chemical vapor deposition (CVD) has the advantages of higher specific surface area, lower defects, and more convenient to handle compared to its 2D counterpart. Graphene as the support has shown to enhance the catalytic efficiency of various types of catalysts. We developed a general method for the covalence conjugation of metal oxide nanoparticles to 3DG using perfluorophenyl azide (PFPA) as the coupling agent. The synthesis of the 3DG-metal oxide nanoparticle nanocomposites will be presented. The nanocomposite materials were characterized by infrared spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. In one example, 3DG-TiO2 nanocomposites were synthesized, and the photocatalytic activity of the nanocomposites was evaluated in the CO2 reduction reaction. The 3DG-TiO2 nanocomposite as the catalyst showed more than an order of magnitude more product formation than the 2DG-TiO2 catalyst.

Metal oxide nanoparticle covalently supported on three-dimensional graphene: Synthesis and catalytic performance

256th National Meeting (2018)

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