Journal ArticleDOI
Construction of a heteropolyanion-containing polypyrrole/carbon nanotube modified electrode and its electrocatalytic property
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TLDR
In this article, a heteropolyanion-containing polypyrrole/carbon nanotubes modified electrode has been fabricated through entrapment of phosphomolybdic acid (H3PMo12O40) in poly pyrrole (PPy) film on multi-walled carbon Nanotubes (MWNTs) modified gold electrode.Abstract:
A heteropolyanion‐containing polypyrrole/carbon nanotube modified electrode has been fabricated through entrapment of phosphomolybdic acid (H3PMo12O40) in polypyrrole (PPy) film on multi‐walled carbon nanotubes (MWNTs) modified gold electrode. The electrochemical behavior and the electrocatalytic property of the modified electrode were investigated in acidic solution. Compared with the H3PMo12O40/PPy/gold electrode, the H3PMo12O40/PPy/MWNTs/gold electrode has s hown enhanced electrocatalytic property to the reduction of nitrite. Steady‐state amperometry has been applied to characterize the modified electrode as an amperometric sensor for the determination of nitrite. Effects of PPy film thickness and MWNTs concentration on the current response of the modified electrode for the detection of nitrite have been investigated and discussed. Under the optimized conditions, a linear range from 5.0×10−6 to 3.4×10−2 M has been observed for the H3PMo12O40/PPy/MWNTs/gold electrode with a sensitivity of 1214....read more
Citations
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Composites of Intrinsically Conducting Polymers as Sensing Nanomaterials
David W. Hatchett,Mira Josowicz +1 more
TL;DR: The resonance-stabilized structure of ICPs allows for the incorporation of ions, nanoparticles, or nanowires of metals, metal oxides, carbon, or molecular species such as metallophthalocyanines or biologically active components such as enzymes, antibodies, and antigens.
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Role of carbon nanotubes in electroanalytical chemistry: A review
TL;DR: This review covers recent advances in the development of new designs of electrochemical sensors and biosensors that make use of electrode surfaces modification with carbon nanotubes.
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Polyoxometalates: formation, structures, principal properties, main deposition methods and application in sensing
TL;DR: In this article, the potential applications of POMs on solid substrates as sensors for the detection and determination of analytes both in liquid and in the gas phase are addressed and compared.
Journal ArticleDOI
Self-assembled monolayers (SAMs) for electrochemical sensing
TL;DR: The past, present, and future of the application of self-assembled monolayers (SAMs) in electroanalytical chemistry is reviewed in this paper, where the prospective and perspectives of this topic are discussed.
Journal ArticleDOI
Layer-by-layer construction of multi-walled carbon nanotubes, zinc oxide, and gold nanoparticles integrated composite electrode for nitrite detection
TL;DR: In this paper, a composite electrode of Au/ZnO/MWCNTs/GC has been constructed for the electrochemical detection of nitrite, where ZnO thin film and Au nanoparticles are electrodeposited through layer-by-layer onto MWCNT/GC substrate.
References
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Helical microtubules of graphitic carbon
TL;DR: Iijima et al. as mentioned in this paper reported the preparation of a new type of finite carbon structure consisting of needle-like tubes, which were produced using an arc-discharge evaporation method similar to that used for fullerene synthesis.
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Solubilization of carbon nanotubes by Nafion toward the preparation of amperometric biosensors.
TL;DR: The ability to solubilize single-wall and multiwall carbon nanotubes (CNT) in the presence of the perfluorinated polymer Nafion is described, and the resulting CNT/Nafion modified glassy-carbon electrodes exhibit a strong and stable electrocatalytic response toward hydrogen peroxide.
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Low-potential stable NADH detection at carbon-nanotube-modified glassy carbon electrodes
TL;DR: Carbon-nanotube (CNT)-modified glassy carbon electrodes exhibiting strong and stable electrocatalytic response toward NADH are described in this article, where a substantial (490 mV) decrease in the overvoltage of the NADH oxidation reaction (compared to ordinary carbon electrodes) is observed using single-wall and multi-wall carbon nanotube coatings, with oxidation starting at ca. − 0.05 V (vs. Ag/AgCl; pH 7.4).
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Carbon nanotube/teflon composite electrochemical sensors and biosensors.
Joseph Wang,Mustafa Musameh +1 more
TL;DR: The fabrication and attractive performance of carbon nanotube (CNT)/Teflon composite electrodes, based on the dispersion of CNT within a Teflon binder, are described and new capabilities for electrochemical devices are brought by combining the advantages of C NT and "bulk" composite electrodes.
Journal ArticleDOI
Direct electrochemistry of cytochrome c at a glassy carbon electrode modified with single-wall carbon nanotubes.
TL;DR: The electrochemistry of horse heart cytochrome c was studied by cyclic voltammetry at a glassy carbon electrode modified with single-wall carbon nanotubes (SWNTs) to determine the optimal conditions for activating the SWNT film-modified electrode.