Preparation of Nano‐Structured Polyaniline Composite Film via “Carbon Nanotubes Seeding” Approach and its Gas‐Response Studies

Ma, Xingfa; Zhang, Xiaobin; Yu, Lihua; Li, Guang; Wang, Mang; Chen, Hongzheng; Mi, Yuhong

doi:10.1002/mame.200500296

Cited by 42 publications

(23 citation statements)

References 32 publications

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“…These materials find potential applications as sensors, UV detectors, catalysts, biosensors, and piezoelectronic materials [1–4]. As with conventional composites, the properties of nanocomposites can display synergistic improvements over those of the component phases individually.…”

Section: Introductionmentioning

confidence: 99%

Single Step In Situ Synthesis and Optical Properties of Polyaniline/ZnO Nanocomposites

Sharma

Kaith

Rajput

2014

The Scientific World Journal

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Polyaniline/ZnO nanocomposites were prepared by in situ oxidative polymerization of aniline monomer in the presence of different weight percentages of ZnO nanostructures. The steric stabilizer added to prevent the agglomeration of nanostructures in the polymer matrix was found to affect the final properties of the nanocomposite. ZnO nanostructures of various morphologies and sizes were prepared in the absence and presence of sodium lauryl sulphate (SLS) surfactant under different reaction conditions like in the presence of microwave radiation (microwave oven), under pressure (autoclave), under vacuum (vacuum oven), and at room temperature (ambient condition). The conductivity of these synthesized nanocomposites was evaluated using two-probe method and the effect of concentration of ZnO nanostructures on conductivity was observed. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and UV-visible (UV-VIS) spectroscopy techniques were used to characterize nanocomposites. The optical energy band gap of the nanocomposites was calculated from absorption spectra and ranged between 1.5 and 3.21 eV. The reported values depicted the blue shift in nanocomposites as compared to the band gap energies of synthesized ZnO nanostructures. The present work focuses on the one-step synthesis and potential use of PANI/ZnO nanocomposite in molecular electronics as well as in optical devices.

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Section: Introductionmentioning

confidence: 99%

Single Step In Situ Synthesis and Optical Properties of Polyaniline/ZnO Nanocomposites

Sharma

Kaith

Rajput

2014

The Scientific World Journal

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“…In terms of fabrication, the focus is on the embedding or incorporation of the CNTs into the bulk polymer, with polymerization of the bulk polymer by conventional means, including chemical [63][64][65][66][67][68], electrochemical [69][70][71], photopolymerisation [72,73]and vapor deposition [74]. So, clearly, the main focus of the evaluation of the nanocompsites is the enhancement brought by the incorporation of CNTs into traditional bulk materials.…”

Section: Carbon Nanotube Nanocompositesmentioning

confidence: 99%

“…So, clearly, the main focus of the evaluation of the nanocompsites is the enhancement brought by the incorporation of CNTs into traditional bulk materials. As well as more obvious enhancements in the conductivity of the composite films over conducting polymer alone, it has also been suggested that polymerization in the presence of the CNTs alters the polymerization process, leading to templating and growth orientation [75,63]. A PPy-SWNT conductimetric sensor for NO 2 detection was shown to be of comparative sensitivity to SWNTs alone when the composite was spin-cast and chemically polymerized [66] with a sensitivity of 0.9 at 3000 ppm.…”

Section: Carbon Nanotube Nanocompositesmentioning

confidence: 99%

“…PANI and PPy-carbon nanotube composites have also been investigated for nitrogenous compounds such as ammonia, trimethylamine, and triethylamine [63,68,69,74] where, in general, significant improvements over polymer alone have been observed. In the case of a PANI/MWNT composite, the response to triethylamine vapor was also very dependent on the type of dopant used.…”

Section: Carbon Nanotube Nanocompositesmentioning

confidence: 99%

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Nanostructured Conducting Polymers for (Electro)chemical Sensors

Killard

2010

Nanostructured Conductive Polymers

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Conducting polymers have been investigated for many years now for their electrical and electrochemical properties. The moderate range of conducting polymers now available, their many derivatives, broad range of counter-ion doping options, level of proton doping, and the many synthetic routes result in a large range of material properties in terms of conductivity, chemical sensitivity, selectivity, and redox characteristics. This allows them to participate in many chemical interactions which are suitable for chemosensing applications.Nanotechnology allows conducting-polymer materials to be studied and applied to chemical sensing in a new way. Controlling the structure and morphology of conducting polymer materials at nanoscales brings the prospect of a range of enhancements not possible with traditional bulk materials. Traditional routes to polymer formation, such as chemical and electrochemical synthesis, lack any fine control on the tertiary structure of the growing polymer, and this lack of structural reproducibility has negative consequences for the performance of the material as a sensor interface. In addition, such polymerizations, Nanostructured Conductive PolymersEdited by Ali Eftekhari

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“…So nanostructured materials and nano/micro-electronic devices have received considerable attention to result in great progress [1][2][3][4][5][6][7]. The researches on nanostructured material, including organic materials [5][6][7][8][9][10][11][12], inorganic materials [1][2][3][4] and organic-inorganic hybrid materials [13][14][15][16][17][18][19][20], reveals that organic materials are promising because of their simple preparation, easy modification, convenient morphology tailoring and some special functional properties. Nano-structured conductive polymers are one kind of important typical functional materials, they have potential applications in many fields, such as lightweight battery electrode, display devices, organic flexible conductor, electronic newspaper, electromagnetic shielding device, anticorrosion coatings, chemical sensors and biosensors [5,6].…”

Section: Introductionmentioning

confidence: 99%

Preparation, modification, morphology tailor and application of conjugated conductive polymer in chemical sensors

Gao

et al. 2009

SPIE Proceedings

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Polyaniline nanotube was prepared with aid of lactic acid assembly. A chemical prototype sensor was constructed based on nanotube-structured polyaniline and two typical structured chemical sensors, one is an interdigital electrodes on flexible polymer substrate, the other is a highly sensitive quartz resonators. The gas-sensing behavior of the two typical sensors to some organic vapors operating at room temperature was investigated. Results showed rapid response, and good reversibility of these two typical sensors. The response time is 10-20 s, the reversible time is about 100 s. This study provides a simple approach for preparation of materials needed for a chemical sensor to selected organic volatiles with rapid response or organic flexible nanoelectronic devices.

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Preparation of Nano‐Structured Polyaniline Composite Film via “Carbon Nanotubes Seeding” Approach and its Gas‐Response Studies

Cited by 42 publications

References 32 publications

Single Step In Situ Synthesis and Optical Properties of Polyaniline/ZnO Nanocomposites

Single Step In Situ Synthesis and Optical Properties of Polyaniline/ZnO Nanocomposites

Nanostructured Conducting Polymers for (Electro)chemical Sensors

Preparation, modification, morphology tailor and application of conjugated conductive polymer in chemical sensors

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