Electrocatalytic Reduction of Hydrogen Peroxide by Nanostructured Bimetallic Films of Metalloporphyrins
- 29 September 2009
- journal article
- research article
- Published by Wiley in Electroanalysis
- Vol. 21 (19) , 2133-2138
Abstract
We report the sequential electrochemical deposition of bimetallic films of porphyrins onto gold nanoparticles, previously deposited by SAM on gold surface. SEM analysis of EAu/polyFeCuPP and EAu/cys/AuNp/polyFeCuPP showed a heterogeneous distribution of material aggregates in the former (ca. 0.1–1 μm), whereas the nanocomposite film exhibits a highly microporous structure in the micrometer diameter range. The sensitivity for H2O2 detection increased four times (609±6 mA M−1 cm−2 vs. 157±3 mA M−1 cm−2) with a linear relationship in the range of 1×10−5–2×10−3 M. The application of the particulate material to the first‐generation biosensor of glucose is described.Keywords
This publication has 15 references indexed in Scilit:
- Wired-Enzyme Core−Shell Au Nanoparticle BiosensorJournal of the American Chemical Society, 2008
- Supported bimetallic polymers of porphyrins as new heterogeneous catalystJournal of Molecular Catalysis A: Chemical, 2008
- Decolorization of synthetic dyes by hydrogen peroxide with heterogeneous catalysis by mixed iron oxidesApplied Catalysis B: Environment and Energy, 2006
- Chemistry and Properties of Nanocrystals of Different ShapesChemical Reviews, 2005
- A new silver-ion selective sensor based on a polythiacrown-ether entrapped by sol–gelElectrochimica Acta, 2002
- Porphyrins in analytical chemistry. A reviewTalanta, 2000
- Bimetallic catalysis by late transition metal complexesTetrahedron, 1998
- Polyhaloporphyrins: Unusual Ligands for Metals and Metal-Catalyzed OxidationsAccounts of Chemical Research, 1997
- Porphyrin electrode films prepared by electrooxidation of metalloprotoporphyrinsJournal of the American Chemical Society, 1983
- On the preparation of metalloporphyrinsJournal of Inorganic and Nuclear Chemistry, 1970