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Bulletin of Chemical Reaction Engineering and Catalysis, Volume 12, Issue 1, 2017, pp. 1-13

Electrosynthesized Ni-Al layered double hydroxide-Pt nanoparticles as an inorganic nanocomposite and potentate anodic material for methanol electrooxidation in alkaline media

Abstract :

In this study, Ni-Al layered double hydroxide (LDH)-Pt nanoparticles (PtNPs) as an inorganic nanocomposite was electrosynthesized on the glassy carbon electrode (GCE) by a facile and fast two-step electrochemical process. Structure and physicochemical properties of PtNPs/Ni-Al LDH/GCE were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectrometry and electrochemical methods. Then, electrocatalytic and stability characterizations of the PtNPs/Ni-Al LDH/GCE for methanol oxidation in alkaline media were investigated in detail by cyclic voltammetry, chronoamperometry, and chronopotentiometry measurements. PtNPs/Ni-Al LDH/GCE exhibited higher electrocatalytic activity than PtNPs/GCE and Ni-Al LDH/GCE. Also, the resulted chronoamperograms indicated that the PtNPs/Ni-Al LDH/GCE has a better stability. Copyright

Keywords : Electrodeposition,Electrooxidation,Fuel cell,Inorganic nanocomposite,Methanol,Ni-Al layered double hydroxide,Pt nanoparticles
Subject Area : Catalysis Process Chemistry and Technology

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