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205859 
Journal Article 
Synthesis, characterization, and immobilization of Prussian blue-modified Au nanoparticles: application to electrocatalytic reduction of H2O2 
Qiu, JD; Peng, HZ; Liang, RP; Li, J; Xia, XH 
2007 
1 
Langmuir
ISSN: 0743-7463
EISSN: 1520-5827 
23 
4 
2133-2137 
English 
Au nanoparticles modified with electroactive Prussian blue (PB) were for the first time synthesized by a simple chemical method. Transmission electronic microscopy showed that the average size of the Prussian blue shell/Au core hybrid composite (PB@Au) was about 50 nm, and Fourier transform IR, UV-vis spectra, and cyclic voltammetry confirmed the existence of PB on the surface of Au nanoparticles. Using the LbL technique, multilayer thin films of PB@Au nanoparticles were prepared by the alternate adsorption of oppositely charged linear polyelectrolyte poly(allylamine hydrochloride) (PAH) onto ITO glass for the construction of a hydrogen peroxide sensor. The novel multilayer films were characterized by SEM, cyclic voltammetry, and UV-visible absorption spectroscopy. The {PAH/PB@Au}n multilayer-modified electrode showed a well-defined pair of redox peaks and dramatic catalytic activity toward the reduction of hydrogen peroxide. 
Catalysis; Electrochemistry; Ferrocyanides/cs [Chemical Synthesis]; *Ferrocyanides/ch [Chemistry]; *Gold/ch [Chemistry]; *Hydrogen Peroxide/ch [Chemistry]; Microscopy, Electron, Scanning; Microscopy, Electron, Transmission; *Nanoparticles/ch [Chemistry]; *Nanoparticles/ul [Ultrastructure]; Oxidation-Reduction; Spectrum Analysis; 0 (Ferrocyanides); 14038-43-8 (ferric ferrocyanide); 7440-57-5 (Gold); 7722-84-1 (Hydrogen Peroxide)