Facile preparation and electrochemical characterization of self-assembled core-shell diamond-polypyrrole nanocomposites

Meng, Yuting; Zhang, Lexin; Xing, Ronge; Huang, Hao; Yuan, Quan; Jiao, Tifeng; Zhou, Jingxin; Peng, Qiuming

doi:10.1016/j.colsurfa.2018.08.007

Cited by 15 publications

(6 citation statements)

References 50 publications

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“…41 The spectrum of polypyrrole shows characteristic C-H in-plane and C-N stretching vibrations at 1376 cm À1 and 1213 cm À1 , respectively. 42 The peak observed at 3399 cm À1 is due the N-H functional group. The characteristic O-H stretching peak of chitosan is obtained at around 3439 cm À1 , and the peak at 2905 cm À1 is ascribed to axial stretching of the C-H bond, while the peak at 1663 cm À1 is ascribed to the amide group.…”

Section: Ftir Analysismentioning

confidence: 99%

Zinc oxide-decorated polypyrrole/chitosan bionanocomposites with enhanced photocatalytic, antibacterial and anticancer performance

et al. 2019

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Section: Ftir Analysismentioning

confidence: 99%

Zinc oxide-decorated polypyrrole/chitosan bionanocomposites with enhanced photocatalytic, antibacterial and anticancer performance

et al. 2019

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“…The two peaks at 1050 and 1078 cm − 1 belong to the in-plane deformation vibration of C-H, and the other two peaks at 1384 and 1330 cm − 1 belong to the stretching vibration of the ring. The ring deformation vibration of PPy at 927 cm − 1 , and the stretching vibration peak of C-N at 1434 cm − 1 [ 47 ].…”

Section: Resultsmentioning

confidence: 99%

“…The C=C stretching peak at 1598 cm − 1 is considered to be an overlap of the two oxidized structures, which should be attributed to the conversion of C=C from the neutral state component to the oxidized state component after the combination of PPy and CNC. The peak at 1381 and 1316 cm − 1 can be assigned to antisymmetric C-H in-plane bending, and the deformation vibration peak in C-H plane at 1243 cm − 1 [ 45 , 47 ]. The ring deformation vibration of PPy at 932 cm − 1 , and the stretching vibration peak of C-N at 1474 cm − 1 .…”

Section: Resultsmentioning

confidence: 99%

In-Situ Oxidative Polymerization of Pyrrole Composited with Cellulose Nanocrystal by Reactive Ink-Jet Printing on Fiber Substrates

Cao

et al. 2022

Polymers

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A simple and novel method for the deposition of polypyrrole (PPy) and cellulose nanocrystal (CNC) composites on different fiber substrates by reactive ink-jet printing was proposed. PPy/CNCs composites were successfully prepared, and the surface resistance of conductive layer deposited on different fiber substrates is the least when the monomer concentration is 0.6 M. PPy/CNCs were deposited on polyethylene terephthalate (PET) to form a conductive layer by adding polyvinyl alcohol (PVA), and the optimum sintering temperature is 100 °C (monomer/PVA ratio 4.0, conductivity 0.769 S cm−1). The PPy/CNCs conductive layer deposited on the paper has the lowest surface resistance and the best adhesion, and the surface resistance of PPy/CNCs conductive layer decreases first and then increases with the increase of sulfonate concentration. Moreover, the volume of anion in sulfonate will affect the arrangement and aggregation of PPy molecular chain in composite materials. Appropriate sulfonate doping can improve the conductivity and stability of conductive paper, and the maximum conductivity is 0.813 S cm−1. Three devices based on PPy/CNCs conductive paper were proposed and fabricated. Therefore, this ink-jet printing provides a new method for the preparation of conductive materials, sensors, energy storage and electromagnetic shielding, etc.

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“…Following polymerization of pyrrole on the surface-modified MWCNTs, prominent characteristic Raman bands emerged at 1421, 1164, 1051, 987, and 925 cm −1 , which were identical to those of pure polypyrrole. The first four bands are attributed to antisymmetrical C-N stretching, N-H in-plane deformation, N-H ring stretching, and symmetrical C-H in-plane bending of polypyrrole, respectively [ 18 , 19 , 20 ]. The peaks at 925 and 987 cm −1 are associated with dications (bipolarons) and radical cations (polarons), respectively [ 21 ].…”

Section: Resultsmentioning

confidence: 99%

Selective Nonenzymatic Amperometric Detection of Lactic Acid in Human Sweat Utilizing a Multi-Walled Carbon Nanotube (MWCNT)-Polypyrrole Core-Shell Nanowire

et al. 2020

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Lactic acid plays an important role as a biochemical indicator for sports medicine and clinical diagnosis. The detection of lactic acid in sweat is a promising technique without any intrusive inconvenience or risk of infection. In this study, we present a selective nonenzymatic amperometric detection method for lactic acid in human sweat utilizing a multi-wall carbon nanotube (MWCNT)-polypyrrole core-shell nanowire. Because polypyrrole is a p-type conducting polymer, onto which anions are exclusively doped, leading to charge transfer, it offers selective detection for lactate anions at a specific potential, while being inert to the neutral and cationic species contained in human sweat. A chronoamperometric study reveals good sensing performance for lactic acid with a high sensitivity of 2.9 μA mM−1 cm−2 and detection limit of 51 μM. Furthermore, the MWCNT-polypyrrole nanowire exhibits excellent selectivity for lactic acid over interfering species, such as sodium chloride, glucose, urea, and riboflavin, which coexist with lactic acid in sweat. Finally, a nonenzymatic amperometric sensor for the selective detection of lactic acid in human sweat is demonstrated on commercial flexible electrodes. The results demonstrate the potential applications of the MWCNT-polypyrrole core-shell nanowire as a nonenzymatic amperometric lactate sensor.

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Facile preparation and electrochemical characterization of self-assembled core-shell diamond-polypyrrole nanocomposites

Cited by 15 publications

References 50 publications

Zinc oxide-decorated polypyrrole/chitosan bionanocomposites with enhanced photocatalytic, antibacterial and anticancer performance

Zinc oxide-decorated polypyrrole/chitosan bionanocomposites with enhanced photocatalytic, antibacterial and anticancer performance

In-Situ Oxidative Polymerization of Pyrrole Composited with Cellulose Nanocrystal by Reactive Ink-Jet Printing on Fiber Substrates

Selective Nonenzymatic Amperometric Detection of Lactic Acid in Human Sweat Utilizing a Multi-Walled Carbon Nanotube (MWCNT)-Polypyrrole Core-Shell Nanowire

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