One-step electrochemical deposition of prussian blue-multiwalled carbon nanotube nanocomposite thin-film: preparation, characterization and evaluation for H2O2 sensing
Prussian blue-multiwalled carbon nanotube-modified gold (PB-MWCNT/Au) electrodes were successfully fabricated using the electrochemical co-deposition method in which the MWCNTs not only act as a carrier of PB, but also as a modifier for a catalytic function. Fourier transform infrared proved that PB assembled on the surface of MWCNTs through electrochemical co-deposition. Scanning electron microscopy images showed that a relatively porous PB-MWCNT film was formed. Cyclic voltammetry and electrochemical impedance spectroscopy revealed that a PB-coated MWCNTs composite film improved electron and ion transfer relative to pure PB films and also exhibited larger electrode-specific capacitance than PB alone. Compared with PB film, the PB-MWCNT composite film showed a larger response current to the reduction of H2O2 because of the synergistic effects between the MWCNTs and PB particles.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 974915
- Report Number(s):
- PNNL-SA-69508; JMACEP; TRN: US201007%%875
- Journal Information:
- Journal of Materials Chemistry, 20:1532 - 1537, Vol. 20; ISSN 0959-9428
- Country of Publication:
- United States
- Language:
- English
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