Au nanoparticles-functionalized two-dimensional patterned conducting PANI nanobowl monolayer for gas sensor

Jiang, Shan; Chen, Jingyu; Tang, Jun; Jin, En Mei; Kong, Lirong; Zhang, Wanjin; Wang, Ce

doi:10.1016/j.snb.2009.04.060

Cited by 51 publications

(17 citation statements)

References 30 publications

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“…Previous studies have demonstrated that hybrid materials are highly suitable in sensing applications, showing enhanced sensor stability, sensitivity and selectivity. The inorganic phase can be diverse, ranging from metal oxides, metal nanoparticles, carbon nanotubes and graphene . Their incorporation into conducting polymers can increase the concentration of interacting sites with the analytes, improve the intra‐ and inter‐chain mobility of charge carriers in the polymer chains or even modify the affinity of the composite to the electron‐donor or ‐acceptor molecules .…”

Section: Materials For Gas Sensing21single‐element Materialsmentioning

confidence: 99%

“…Section ). For conducting‐polymer–metal nanocomposites, a group of studies have demonstrated the efficiency of metals such as Au, Pt, Ag, and Pd in improving the sensor performance. Simon and co‐workers have discussed the principle of metal‐nanoparticle–organic‐nanocomposite sensing materials in detail .…”

Section: Materials For Gas Sensing21single‐element Materialsmentioning

confidence: 99%

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Nanostructured Materials for Room‐Temperature Gas Sensors

et al. 2015

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Sensor technology has an important effect on many aspects in our society, and has gained much progress, propelled by the development of nanoscience and nanotechnology. Current research efforts are directed toward developing high-performance gas sensors with low operating temperature at low fabrication costs. A gas sensor working at room temperature is very appealing as it provides very low power consumption and does not require a heater for high-temperature operation, and hence simplifies the fabrication of sensor devices and reduces the operating cost. Nanostructured materials are at the core of the development of any room-temperature sensing platform. The most important advances with regard to fundamental research, sensing mechanisms, and application of nanostructured materials for room-temperature conductometric sensor devices are reviewed here. Particular emphasis is given to the relation between the nanostructure and sensor properties in an attempt to address structure-property correlations. Finally, some future research perspectives and new challenges that the field of room-temperature sensors will have to address are also discussed.

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Section: Materials For Gas Sensing21single‐element Materialsmentioning

confidence: 99%

Section: Materials For Gas Sensing21single‐element Materialsmentioning

confidence: 99%

Nanostructured Materials for Room‐Temperature Gas Sensors

et al. 2015

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“…[219,220] A facile route for the generation of 2D ordered, large-area, liftable, and patterned polyaniline nanobowl monolayer containing Au nanoparticles was demonstrated with the monolayer self-assembled polystyrene spheres at the aqueous/air interface as template, using tetrachloroauric acid as an oxidizing agent for the polymerization of aniline in aqueous solution. [221] Other nanobowls are known for such metals as Ni, [222] Al, [223] Au, [224] oxides ZnO, [225] TiO 2 , [226] or magnetic arrays Co [227] [228] Their main applications include gas-and biosensor ability, lithography, and catalysis. Hollow nanobottle structures are known, for example for ZnO ( Figure 37) and SiO 2 .…”

Section: Gallery Of Relatively Rare Nanoformsmentioning

confidence: 99%

A Review on Less-common Nanostructures

Kharissova

Kharisov

García

et al. 2009

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-

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Less-comon nanostructures (nanoforms) such as "nanodumbbells", "nanorices", "nanolines", "nanotowers", "nanoshuttles", "nanobowlings", "nanowheels", "nanofans", "nanopencils", "nanotrees", "nanoarrows", "nanonails", "nanobottles", or "nanovolcanoes", among many others, have been reviewed. A considerable part of these nanoforms corresponds to gold, zinc oxide, and several binary inorganic compounds that are widely used in electronics. Synthesis methods for obtaining less-common nanoforms include wet-chemistry and electrochemical techniques, laser ablation, ultrasonic treatment, electron and ion beam irradiation, arc discharge, lithography, CVD and related routes, among others.

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“…Hydrogen sensors, based on conductivity changes in PANI-NFs [467,468] have been reported. Ultrafast sensor responses to ammonia gas of the dispersed PANI-CSA nanorods [303] and patterned PANI nanobowl monolayers containing Au nanoparticles [473] have recently been demonstrated. The 64°YX lithium niobate surface acoustic wave transducer coated first with aluminum nitride, and then with PANI-NFs by rapid mixing chemical oxidative method, in the presence of CSA, has demonstrated a large and reproducible response to different concentrations of the hydrogen gas, making it an ideal candidate for hydrogen sensing at room temperature [469].…”

Section: Sensorsmentioning

confidence: 99%

Polyaniline Nanostructures

Ćirić‐Marjanović

2010

Nanostructured Conductive Polymers

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Polyaniline (PANI) is one of the most extensively studied conducting polymers because of its simple synthesis [1] and doping/dedoping chemistry [2], low cost, high conductivity, and excellent environmental stability. PANI has a wide applicability in rechargeable batteries [3], erasable optical information storage [4], shielding of electromagnetic interference [5], microwave-and radar-absorbing materials [6], sensors [7], indicators [8], catalysts [9], electronic and bioelectronic components [10], membranes [11], electrochemical capacitors [12], electrochromic devices [13], nonlinear optical [14] and light-emitting devices [15], electromechanical actuators [16], antistatic [17] and anticorrosion coatings [18]. Its electromagnetic and optical properties depend mostly on its oxidation state and degree of protonation [19]. The green emeraldine salt form of PANI is conducting ($1-10 S cm À1 for granular powders) [1]. It contains, depending on the synthetic route, variousunits (in the preceeding formulae B, Q and A À denote a benzenoid ring, quinonoid ring and dopant anion, respectively). The blue emer-The preparation of bulk quantities of conducting granular PANI is usually performed Nanostructured Conductive PolymersEdited by Ali Eftekhari by the oxidative polymerization of aniline with ammonium peroxydisulfate (APS) in an acidic aqueous solution (initial pH < 2.0) [1]. Colloidal PANI nanoparticles are prepared by dispersion polymerization of aniline in the presence of various colloidal stabilizers [20,21]. The average size of colloidal PANI nanoparticles decreases with increasing stabilizer/aniline ratio. PANI colloids often have nonspherical (rice grain, needle-like, etc.) core-shell morphology. The colloidal nanoparticle core most likely has a composite nature, i.e. it is composed of both the PANI and the incorporated stabilizer, while the shell is formed by the stabilizer. Nowadays, conducting PANI nanostructures are the focus of intense research owing to their significantly enhanced dispersibility and processability, and substantially improved performance in many applications, in comparison with granular and colloidal PANI [22][23][24][25][26][27]. The continuously growing interest in the study of zero-dimensional (0-D) (solid nanospheres), one-dimensional (1-D) (nanofibers (nanowires), nanorods (nanosticks), nanoneedles, rice-like nanostructures, nanotubes), two-dimensional (2-D) (nanoribbons (nanobelts), nanosheets (nanoplates, nanoflakes, nanodisks, leaf-like nanostructures), nanorings (cyclic nanostructures), net-like nanostructures), and three-dimensional (3-D) PANI nanostructures (hollow nanospheres, dendritic and polyhedral nanoparticles, flower-like, rhizoid-like, brain-like, urchin-like, and star-like nanostructures, etc.) has dramatically increased in recent years (Figure 2.1). The major focus of research has been the preparation, characterization, processing, and application of PANI nanofibers (PANI-NFs) and nanotubes (PANI-NTs). PANI-NFs are 1-D PANI nanoobjects of cylindrical profile with diameters ...

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Au nanoparticles-functionalized two-dimensional patterned conducting PANI nanobowl monolayer for gas sensor

Cited by 51 publications

References 30 publications

Nanostructured Materials for Room‐Temperature Gas Sensors

Nanostructured Materials for Room‐Temperature Gas Sensors

A Review on Less-common Nanostructures

Polyaniline Nanostructures

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