A sensitive amperometric bromate sensor based on multi-walled carbon nanotubes/phosphomolybdic acid composite film

An amperometric sensor for bromate was developed based on multi-walled carbon nanotubes /phosphomolybdic acid composite film coated on a pyrolytic graphite electrode

Zhenfeng Li; Jinhua Chen; Dawei Pan; Wenyan Tao; Lihua Nie; Shouzhuo Yao

2006

Scholarcy highlights

  • An amperometric sensor for bromate was developed based on multi-walled carbon nanotubes/phosphomolybdic acid composite film coated on a pyrolytic graphite electrode
  • MWNTs are dispersed in PMo12 aqueous solution through spontaneous and strong chemisorption between carbon and polyoxometalate, which results in a homogeneous MWNTs/PMo12 composite
  • The bromate sensor based on the PG/MWNTs/PMo12 electrode has excellent characteristics, such as a detection limit of 0.5 μM, a sensitivity of 760.9 μA mM−1 cm−2, a response time less than 2 s and a linear range from 5 μM to 15 mM
  • The bromate sensor based on the pyrolytic graphite/multi-walled carbon nanotubes/PMo12 electrode has excellent characteristics, such as a detection limit of 0.5 μM, a sensitivity of 760.9 μA mM−1 cm−2, a response time less than 2 s and a linear range from 5 μM to 15 mM

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