Fabrication phosphomolybdic acid-reduced graphene oxide nanocomposite by UV photo-reduction and its electrochemical properties.

Jie Chen, Suling Liu, Wei Feng, Guoquan Zhang, Fenglin Yang

Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, People's Republic of China.

Physical chemistry chemical physics : PCCP 2013 Apr 21

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Phosphomolybdic acid-reduced graphene oxide (PMoA-rGO) nanocomposites are fabricated by a photochemical reduction method. They are characterized by ultraviolet-visible spectra, scanning electron microscope images, Fourier transform infrared spectroscopy, Raman spectra and X-ray photoelectron spectroscopy in order to confirm that oxygen-containing functional groups on GO are replaced by PMoA and that GO is reduced to rGO in the photo-reduction process. The electrochemical properties of PMoA-rGO are investigated by cyclic voltammetry, which shows that the PMoA-rGO modified glassy carbon electrode has high electrocatalytic activity in acid solution via a fast, surface-controlled electron transfer process. The results indicate that the use of rGO not only increases the electroactive surface area, but also facilitates electron transfer due to its high electric conductivity.

Citation

Jie Chen, Suling Liu, Wei Feng, Guoquan Zhang, Fenglin Yang. Fabrication phosphomolybdic acid-reduced graphene oxide nanocomposite by UV photo-reduction and its electrochemical properties. Physical chemistry chemical physics : PCCP. 2013 Apr 21;15(15):5664-9