Prussian Blue‐Modified Titanate Nanotubes: A Novel Nanostructured Catalyst for Electrochemical Reduction of Hydrogen Peroxide | Zendy

Iveković Damir | Zendy; Gajović Andreja | Zendy; Čeh Miran | Zendy; Pihlar Boris | Zendy

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Prussian Blue‐Modified Titanate Nanotubes: A Novel Nanostructured Catalyst for Electrochemical Reduction of Hydrogen Peroxide

Author(s) -

Iveković Damir,

Gajović Andreja,

Čeh Miran,

Pihlar Boris

Publication year - 2010

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.200900622

Subject(s) - prussian blue , catalysis , hydrogen peroxide , electrochemistry , inorganic chemistry , materials science , nuclear chemistry , reaction rate constant , electrode , chemistry , kinetics , organic chemistry , physics , quantum mechanics

Prussian blue (PB) modified titanate nanotubes (PB‐TiNT) have been synthesized by the reaction of Fe 2+ ‐modified TiNT with hexacyanoferrate(III) ions. The rate constant for heterogeneous catalytic reaction between PB‐TiNT and H 2 O 2 was found to be k =2×10 4 dm 3 mol −1 s −1 , which is an order of magnitude higher than the values of k reported for conventionally prepared, electrochemically deposited PB films. On the PB‐TiNT modified electrode with subnanomolar surface concentration of PB ( Γ (PB)=2.8×10 −11 mol/cm 2 ), a stable, reproducible and linear response towards H 2 O 2 was obtained in the concentration range 0.02–4 mM, with the sensitivity of 0.10 AM −1 cm −2 at −150 mV.

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