The effect of inorganic salt on the morphology and nucleation of polyaniline nanofibers synthesized via self-assembly

Wang, Ruijuan; Jing, Yiqi

doi:10.1080/15685551.2023.2166727

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…In Figure 2b, two absorption peaks at 224 and 292 nm, which can be devoted to the quinonoid ring (n → π* excitation transition) and benzenoid ring (π → π* transition), respectively. 44,45 Moreover, no other peaks were detected in the PANI spectrum, which represents the high purity of the PANI nanoparticles 46,47 (Figure 2b). Further, Figure 2c demonstrates the sharp characteristic absorbance peak at 226 nm due to the absence of conjugated double bonds in CH.…”

Section: Resultsmentioning

confidence: 94%

High Oxidation Desulfurization of Fuels Catalyzed by Vanadium-Substituted Phosphomolybdate@Polyaniline@Chitosan as an Inorganic–Organic Hybrid Nanocatalyst

et al. 2023

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From the environmental protection and human health perspectives, the design and synthesis of efficient and reusable oxidative desulfurization nanocatalysts has always been sought after by scientists and industries. In this regard, a new heterogeneous nanocatalyst (V-SPM@PANI@CH) was synthesized by immobilizing Keggin-type vanadium-substituted phosphomolybdate ([PVMo 11 O 39 ] 4− ) (named V-SPM) clusters on the surface of polyaniline (PANI) and chitosan (CH) polymers. The features of the assembled nanocatalyst were detected by Fourier transform infrared spectroscopy, ultraviolet−visible spectroscopy, X-ray diffraction (XRD), scanning electron microscopy, and energy-dispersive X-ray spectroscopy techniques in detail. The XRD studies indicated that the average crystallite size of V-SPM@ PANI@CH was estimated to be about 36 nm. The catalytic performance of V-SPM@PANI@CH was investigated in the extractive and catalytic oxidation desulfurization (ECOD) procedure of real and thiophenic model gasoline by H 2 O 2 /AcOH (volume proportion of 2:1) as an oxidizing system. The optimal desulfurization conditions for ECOD reactions were as follows: 50 mL of model/real gasoline, 0.1 g of V-SPM@PANI@CH, reaction time of 60 min, and reaction temperature of 35 °C. Under the experimental conditions outlined above and the designed ECOD system, the content of sulfur in real gasoline could decline from 0.4985 to 0.0193 wt %, which corresponds to an efficiency of 96%. Moreover, the removal percentage of aromatic hydrocarbons, including thiophene (Th), benzothiophene (BT), and di-benzothiophene (DBT) as model fuels decreases in the order of DBT ≥ BT > Th under identical operating conditions. High catalytic activity was maintained with only a slight loss during five cycles. This work offers the ECOD system (V-SPM@PANI@CH/AcOH/H 2 O 2 ) for the desulfurization of liquid fuels, which had a great repercussion on the ECOD efficiency.

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Section: Resultsmentioning

confidence: 94%

High Oxidation Desulfurization of Fuels Catalyzed by Vanadium-Substituted Phosphomolybdate@Polyaniline@Chitosan as an Inorganic–Organic Hybrid Nanocatalyst

et al. 2023

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“…The monosubstituted aromatic ring is the source of the peak at 688 cm -1 . Pure PANI's spectra displayed the typical distinctive stretching vibration bands at 1490 cm -1 (C=C, benzenoid rings), and 1562 cm -1 (C=C, quinoid rings), 1043, 1076 and 1095 cm -1 (C-H) 31 , 1126 cm -1 (quinone ring stretching vibration), 1200 cm -1 (C-N in plane), and 1383 cm -1 (aromatic C-N stretch). Due to the existence of (C=N stretching in aromatic), the characteristic peaks at 1460 cm -1 and 1557 cm -1 are caused by (aromatic C-C stretching).…”

Section: Chemical and Molecular Studiesmentioning

confidence: 99%

Polyaniline Nano Films Synthesis in One Step via Chemical Oxidative Polymerization

Abbood

Ibraheem

2023

Baghdad Sci.J

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Polyaniline films were successfully synthesized in this study using an oxidative polymerization method at temperatures ranging from 0 to 4 ° C. Polyaniline films were deposited using a single step of chemical oxidative polymerization rather than electrochemical polymerization. The polyaniline was examined using FTIR, XRD, SEM, AFM, and Four Point Probe. This result demonstrates that polyaniline synthesized using this method has a uniform morphology, small size (17 to 40) nm, high crystallinity, and high conductivity (9.42 s/cm).

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Facile electrodepositing coral-/urchin-like polyaniline on carbon cloth in salty media as electrode for high-performance flexible supercapacitors

Li,

Zhao,

Liu

2023

Progress in Natural Science: Materials International

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The effect of inorganic salt on the morphology and nucleation of polyaniline nanofibers synthesized via self-assembly

Cited by 5 publications

References 29 publications

High Oxidation Desulfurization of Fuels Catalyzed by Vanadium-Substituted Phosphomolybdate@Polyaniline@Chitosan as an Inorganic–Organic Hybrid Nanocatalyst

High Oxidation Desulfurization of Fuels Catalyzed by Vanadium-Substituted Phosphomolybdate@Polyaniline@Chitosan as an Inorganic–Organic Hybrid Nanocatalyst

Polyaniline Nano Films Synthesis in One Step via Chemical Oxidative Polymerization

Facile electrodepositing coral-/urchin-like polyaniline on carbon cloth in salty media as electrode for high-performance flexible supercapacitors

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