Polyaniline–TiO2 nano-composite-based trimethylamine QCM sensor and its thermal behavior studies

Zheng, Junbao; Li, Guang; Ma, Xingfa; Wang, Yaming; Wu, Gang; Cheng, Yunan

doi:10.1016/j.snb.2008.02.037

Cited by 117 publications

(53 citation statements)

References 29 publications

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“…Thus, the syntheses of organic-inorganic hybrid polymers with new framework structures are highly desirable. [32][33][34][35] Nevertheless, among the different researches on these materials, there are relatively a few reports on the application of organic-inorganic hybrid polymer as a heterogeneous catalyst. [36][37][38][39] Recently, in our previous studies, [40][41][42][43][44] hybrid organic-inorganic polymers were used as catalysts.…”

Section: 28mentioning

confidence: 99%

Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO₂-ZrO₂Composite

Kalbasi¹,

Mosaddegh²

2011

Bulletin of the Korean Chemical Society

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Nickel nanoparticle-poly(N-vinyl-2-pyrrolidone)/TiO 2 -ZrO 2 composite (Ni-PVP/TiO 2 -ZrO 2 ) was prepared by in situ polymerization method. The physical and chemical properties of Ni-PVP/TiO 2 -ZrO 2 were investigated by XRD, FT-IR, BET, TGA, SEM and TEM techniques. The catalytic performance of this novel heterogeneous catalyst was determined for the Suzuki-Miyaura cross-coupling reaction between aryl halides and phenylboronic acid in the presence of methanol-water mixture as solvent. The effects of reaction temperature, the amount of catalyst, amount of support, solvent, and amount of metal for the synthesis of Ni-PVP/TiO 2 -ZrO 2 , were investigated as well as recyclability of the heterogeneous composite. The catalyst used for this synthetically useful transformation showed considerable level of reusability besides very good activity.

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Section: 28mentioning

confidence: 99%

Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO₂-ZrO₂Composite

Kalbasi¹,

Mosaddegh²

2011

Bulletin of the Korean Chemical Society

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“…When the analyte interacts with the sensitive layer, the mass of the quartz crystal increases which changes the resonant frequency of the crystal. The sensing layer can be a polymer film [18,19], molecular imprinted polymer film [20], and inorganic-organic hybrid film [21,22]. The table 1 presents the aldehyde sensors using different mechanism.…”

Section: Various Sensors For Aldehyde Detectionmentioning

confidence: 99%

Organic Molecule Based Sensor for Aldehyde Detection

Mallya

Ramamurthy

2015

Smart Sensors, Measurement and Instrumentation

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Abstract. Aldehydes are used in food and beverage industries, production of resins, soap and perfume industries. When used in excess quantity or found in products in undesired quantity this is a threat to humans. Hence it becomes very important to detect these VOCs even at lower concentration. The other sources of aldehyde are polluted air and water. Exposure to aldehyde can cause gene mutation and cancer. Conductometric sensors with metal oxide semiconductors as sensing films, cataluminesence based sensors, quartz crystal microbalance sensors, analytical methods such as HPLC have been used for the detection of aldehydes. These are sophisticated techniques require skilled staff to perform the tests. Chemiresistor is a simple method of fabrication of conductometric sensor. In this method the sensing layer is a film cast between two electrodes deposited on an insulating substrate. The response of the sensor to various analytes is monitored by recording the changes taking place in the sensing element. Organic molecule based sensors are low cost and operate at room temperature. Selectivity of the sensors to a particular analyte is an issue in sensors. An analyte molecule can interact with the various binding sites on a molecule. A molecule has to be designed and synthesized to be selective to a particular analyte of interest. This can be achieved by selecting a molecule which has a functional group that interacts with the analyte molecule. The mechanism of interaction of the analyte with the sensing molecule can be understood by doing molecular simulations. Molecular modelling allows monitoring the interaction of the analyte and sensing molecule. Here an example of organic molecule based sensor for selective interaction with aldehydes is illustrated.The organic molecule ophenylenediamine blended with carbon black as sensing element of the chemiresistor to decrease the resistance. Molecular modelling can be used to understand the interaction between aldehyde and o-phenylenediamine molecule.

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“…PANI is well known for its interaction with nitrogenous species such as ammonia and higher amines. PANI-TiO 2 nanoparticle composites have been shown to have enhanced sensitivity to triethyl-and trimethylamine over PANI or TiO 2 alone [49,50]. However, the majority of this effect appears to be due to the conducting polymer, and its enhancement in the presence of TiO 2 nanoparticles may be merely due to the effect of polymer nanostructuring.…”

Section: Metal-oxide Nanoparticles/conducting-polymer Nanocompositesmentioning

confidence: 99%

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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Polyaniline–TiO2 nano-composite-based trimethylamine QCM sensor and its thermal behavior studies

Cited by 117 publications

References 29 publications

Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO₂-ZrO₂Composite

Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO₂-ZrO₂Composite

Organic Molecule Based Sensor for Aldehyde Detection

Nanostructured Conducting Polymers for (Electro)chemical Sensors

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Polyaniline–TiO2 nano-composite-based trimethylamine QCM sensor and its thermal behavior studies

Cited by 117 publications

References 29 publications

Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO2-ZrO2Composite

Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO2-ZrO2Composite

Organic Molecule Based Sensor for Aldehyde Detection

Nanostructured Conducting Polymers for (Electro)chemical Sensors

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Product

Resources

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Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO₂-ZrO₂Composite

Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO₂-ZrO₂Composite