Nanostructure‐Based Leaf‐like Polyaniline in the Presence of an Amphiphilic Triblock Copolymer

Han, Jie; Gao, Song; Guo, Rong

doi:10.1002/adma.200602635

Cited by 98 publications

(65 citation statements)

References 57 publications

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“…[7] More recently, one area of research has focused on moving toward the hierarchical self-assembly of onedimensional (1D) nanometer-scale building blocks into ordered microstructures or complex architectures, [8] which is vital for 'bottom-up' approaches towards future electric nanodevices. [9] Hierarchical PANI architectures, such as nanorod-based microspheres, [10] urchin-like microstructures, [11] rambutan-like microstructures, [12] nanostructure-based leaf-like PANI, [13] and micro-mats of nanofibers, [14] have been fabricated by different selfassembly processes. However, the morphological control of PANI hierarchical superstructures based on lowdimensional nanostructures still represents a significant challenge in the design of integrated materials with advanced functions.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline Fan‐Like Architectures of Rectangular Sub‐Microtubes Synthesized in Dilute Inorganic Acid Solution

Zhou

Han

Guo

2009

Macromol. Rapid Commun.

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Rectangular-tube-based fan-like polyaniline has been readily fabricated by the oxidation polymerization of low-concentration aniline in dilute HCl aqueous solution for the first time. Different from the conventional polymerization that proceeds in concentrated acidic solution (to produce nanofibers), this synthesis was conducted in dilute inorganic acid solution at room temperature and created polyaniline hierarchical fan-like architectures. The morphological evolution of the product has been followed with respect to the reaction time, based on which conceivable interpretations of the formation of rectangular tubes and their assembly into fan-like architectures are given. Other inorganic acids (HNO(3) , H(2) SO(4) , and H(3) PO(4) ) with low concentrations have been used to replace HCl in the reaction system to validate the adaptability of this approach in this report.

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Section: Introductionmentioning

confidence: 99%

Polyaniline Fan‐Like Architectures of Rectangular Sub‐Microtubes Synthesized in Dilute Inorganic Acid Solution

Zhou

Han

Guo

2009

Macromol. Rapid Commun.

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“…Among the various types of CPs, PANI has many attractive features owing to its unique conduction mechanism, easy proton doping, readily film-forming ability, favo-rable environmental stability and having extensive applications in molecular electronic devices, fuel cells, nonlinear optics, sensors, etc. [16][17][18][19][20]. In particular, PANI can be used to construct selective electrode of sensors for DA determination since it can improve the electrocatalytic properties and increase the electron transfer rate and stability of the electrode response [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Polyaniline/AgCl Hybrid Materials for Selective Determination of Dopamine by Electrochemical Methods

Zhou¹,

Xie²,

Yuan³

et al. 2012

AJAC

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A promising electrochemical sensor based on PANI/AgCl hybrid material has been developed. The organic/inorganic hybrid material has exhibited good electrocatalytic properties by cyclic voltammetry measurement and differential pulse voltammetry. The oxidation overpotential of dopamine decreased dramatically, and the oxidation peak current increased significantly at PANI/AgCl/GCE compared to those obtained at PANI/GCE, AgCl/GCE and bare GCE, corresponding to the synergistic effect between PANI and inorganic particle AgCl. Under the optimized conditions, the linear response in the concentration range of 0.7 to 6.0 μM for the selective determination dopamine on the PANI/AgCl/GCE is obtained with a detection limit of 5.4 × 10 -8 M (S/N = 3) using differential pulse voltammetry. The results indicated that the modified electrode can be used to determine dopamine without the interference from ascorbic acid and ensure high sensitivity and good selectivity.

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“…Linear PANI has found broad applicability in rechargeable batteries (6), electromagnetic shielding (7), nonlinear optics (8), light-emitting devices (9), sensors (10), field effect transistors (11), erasable optical information storage (12), membranes (13), digital memory devices (14), electrochemical capacitors (15), electrochromic devices (16), antistatic and anticorrosion coatings (17), fuel cells (18), solar cells (19), and radar absorbing materials (20). Supramolecular PANI nanostructures such as 0D (nanospheres) (21), 1D [nanofibers (22), nanowires (23), nanorods (24), and nanotubes (25)], 2D [nanobelts (26) and nanosheets (27)], cyclic, spiral, and complex nanostructures have also been reported (28). However, due to the mechanistic complexity of aniline polymerization, the atomic-scale control of PANI structure has not yet been realized (28).…”

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confidence: 99%

Two-dimensional polyaniline (C ₃ N) from carbonized organic single crystals in solid state

Mahmood

Lee

Jung

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

396

201

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The formation of 2D polyaniline (PANI) has attracted considerable interest due to its expected electronic and optoelectronic properties. Although PANI was discovered over 150 y ago, obtaining an atomically well-defined 2D PANI framework has been a longstanding challenge. Here, we describe the synthesis of 2D PANI via the direct pyrolysis of hexaaminobenzene trihydrochloride single crystals in solid state. The 2D PANI consists of three phenyl rings sharing six nitrogen atoms, and its structural unit has the empirical formula of C 3 N. The topological and electronic structures of the 2D PANI were revealed by scanning tunneling microscopy and scanning tunneling spectroscopy combined with a first-principle density functional theory calculation. The electronic properties of pristine 2D PANI films (undoped) showed ambipolar behaviors with a Dirac point of -37 V and an average conductivity of 0.72 S/cm. After doping with hydrochloric acid, the conductivity jumped to 1.41 × 10 3 S/cm, which is the highest value for doped PANI reported to date. Although the structure of 2D PANI is analogous to graphene, it contains uniformly distributed nitrogen atoms for multifunctionality; hence, we anticipate that 2D PANI has strong potential, from wet chemistry to device applications, beyond linear PANI and other 2D materials.was discovered in 1834 (1), the word PANI was first coined in 1947 (2), and PANI garnered immense attention from the scientific community due to its intrinsically conducting nature (3). During the last three decades, PANI has been one of the most extensively studied conducting polymers because of its simple synthesis, low cost, high conductivity, environmental stability, and doping chemistry (4, 5). Linear PANI has found broad applicability in rechargeable batteries (6), electromagnetic shielding (7), nonlinear optics (8), light-emitting devices (9), sensors (10), field effect transistors (11), erasable optical information storage (12), membranes (13), digital memory devices (14) (27)], cyclic, spiral, and complex nanostructures have also been reported (28). However, due to the mechanistic complexity of aniline polymerization, the atomic-scale control of PANI structure has not yet been realized (28). Together with the recent discovery of all-carbon-based 2D graphene and its promising potentials (29), 2D network polymers are galvanizing a new wave of research in the scientific community (30). Here, we, for the first time to our knowledge, report the synthesis of real 2D PANI framework from direct pyrolysis of organic single crystals, hexaaminobenzene trihydrochloride (HAB), at 500°C. This synthetic methodology could serve as a straightforward way for the design and synthesis of other new 2D layered materials with many potential applications, from wet chemistry to devices. Results and DiscussionThe key building block, HAB, as a monomer with six functional groups (M6), was synthesized in a pure crystalline form (Fig. 1A and SI Appendix, Fig. S1) (31). It was observed that the HAB single crystals pyrolyze before mel...

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Nanostructure‐Based Leaf‐like Polyaniline in the Presence of an Amphiphilic Triblock Copolymer

Cited by 98 publications

References 57 publications

Polyaniline Fan‐Like Architectures of Rectangular Sub‐Microtubes Synthesized in Dilute Inorganic Acid Solution

Polyaniline Fan‐Like Architectures of Rectangular Sub‐Microtubes Synthesized in Dilute Inorganic Acid Solution

Polyaniline/AgCl Hybrid Materials for Selective Determination of Dopamine by Electrochemical Methods

Two-dimensional polyaniline (C ₃ N) from carbonized organic single crystals in solid state

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Nanostructure‐Based Leaf‐like Polyaniline in the Presence of an Amphiphilic Triblock Copolymer

Cited by 98 publications

References 57 publications

Polyaniline Fan‐Like Architectures of Rectangular Sub‐Microtubes Synthesized in Dilute Inorganic Acid Solution

Polyaniline Fan‐Like Architectures of Rectangular Sub‐Microtubes Synthesized in Dilute Inorganic Acid Solution

Polyaniline/AgCl Hybrid Materials for Selective Determination of Dopamine by Electrochemical Methods

Two-dimensional polyaniline (C 3 N) from carbonized organic single crystals in solid state

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Two-dimensional polyaniline (C ₃ N) from carbonized organic single crystals in solid state