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  • Title: Electrochemical study of nitrobenzene reduction using novel Pt nanoparticles/macroporous carbon hybrid nanocomposites.
    Author: Zhang Y, Zeng L, Bo X, Wang H, Guo L.
    Journal: Anal Chim Acta; 2012 Nov 08; 752():45-52. PubMed ID: 23101651.
    Abstract:
    Novel Pt nanoparticles (PN) ensemble on macroporous carbon (MPC) hybrid nanocomposites (PNMPC) were prepared through a rapidly and simple one-step microwave-assisted heating procedure. The obtained PNMPC was characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and electrochemical methods. The electrochemical reduction of nitrobenzene (NB) was thoroughly investigated at the PNMPC modified glassy carbon (GC) electrode, and the catalytic rate constant was calculated to be 3.14×10(4) M(-1) s(-1) for NB. A sensitive NB sensor was developed based on the PNMPC/GC electrode, which showed a wide linear range (1-200 μM), low detection limit (50 nM), high sensitivity (6.93 μA μM(-1)), excellent anti-interference ability and good stability. And moreover, the electrode was successfully applied to the determination of NB in real samples.
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