Layer-by-layer assembly of prussian blue and carbon nanotube composites with poly(diallyldimethylammonium chloride) for the sensitive detection of hydrogen peroxide

Jian Li, Yanli Yao, Kwok Keung SHIU*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Prussian blue (PB) was deposited on multi-walled carbon nanotubes (MWCNT) in an aqueous solution. Multi-layer composites of the MWCNT-PB hybride material were obtained by layer-by-layer assembly with poly(diallyldimethylammonium chloride) (PDDA). The resulting {PDDA/MWCNT-PB} n multilayer films immoblized on glassy carbon electrodes showed sensitive detection for the reduction of hydrogen peroxide. A sensor based on the {PDDA/MWCNT-PB} n multilayer structure was fabricated and showed excellent sensitivity to the electrochemical reduction of hydrogen peroxide. Its response sensitivity increased with the number of the multilayers. A high response sensitivity of 0.83 mA M -1 cm -2 was obtained for a seven-layer sensor. This redox active multilayer structure offers potential applications in the development of high performance biosensors and biofuel cells. 2010

Original languageEnglish
Pages (from-to)431-435
Number of pages5
JournalAnalytical Sciences
Volume26
Issue number4
DOIs
Publication statusPublished - Apr 2010

Scopus Subject Areas

  • Analytical Chemistry

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