Phytic Acid-Doped Cross-linked Polyaniline Nanofibers for Electrochemical Supercapacitor Electrode Applications

Im, Sungjin; Kim, Hyeong-Jin; Shin, Keesam; Jeong, Hu Young; Hong, Won G.; Kwon, Kyungjung; Hong, Young Joon

doi:10.3938/jkps.74.145

Cited by 9 publications

(9 citation statements)

References 37 publications

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“…This high performance could be attributed to the facile ionic and electronic transport emanating from the conductive network of the prepared PANI salt. The specific capacitance of P-5PA electrode is found to be much better than the values as reported for other PANI and PANI based materials for SCs mentioned in (see Supplementary Materials, Table S2) [15,54,[62][63][64].…”

Section: Galvanostatic Charge/discharge (Gcd)contrasting

confidence: 53%

“…It can be seen that among different samples of PANI salts, P-5PA exhibits a significantly high current, suggesting its strong interaction with the dopant. Such interaction results in high porosity and rough surface, providing larger electrode/electrolyte interface area for more redox reactions [ 53 , 54 ] and provides fast rate of ionic transport and high capacitance [ 51 ]. The specific capacitances calculated from the curves (at low scan rate 20 mVs −1 ) are presented in Table 3 and histogram ( Figure 4 b).…”

Section: Resultsmentioning

confidence: 99%

“…It is thought that low scan rate can permit electrolyte to easily enter the pores of the active material and interact with the electrode’s inner surface and lead to large storage of charge on the electrode surface, hence provide high capacitance. Whereas at higher scan rate, an ineffective interaction occurs between the electrode and electrolyte due to diffusion limitation, which results in less storage of charge at the surface of electrode, hence a low capacitance is observed [ 54 ].…”

Section: Resultsmentioning

confidence: 99%

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An Amazingly Simple, Fast and Green Synthesis Route to Polyaniline Nanofibers for Efficient Energy Storage

et al. 2020

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The major drawbacks of the conventional methods for preparing polyaniline (PANI) are the large consumptions of toxic chemicals and long process durations. This paper presents a remarkably simple and green route for the chemical oxidative synthesis of PANI nanofibers, utilizing sodium phytate as a novel and environmentally friendly plant derived dopant. The process shows a remarkable reduction in the synthesis time and usage of toxic chemicals with good dispersibility and exceedingly high conductivity up to 10 S cm−1 of the resulting PANI at the same time. A detailed characterization of the PANI samples has been made showing excellent relationships between their structure and properties. Particularly, the electrochemical properties of the synthesized PANI as electrode material for supercapacitors were analyzed. The PANI sample, synthesized at pre-optimized conditions, exhibited impressive supercapacitor performance having a high specific capacitance (Csp) (832.5 Fg−1 and 528 Fg−1 at 1 Ag−1 and 40 Ag−1, respectively) as calculated from galvanostatic charge/discharge (GCD) curves. A good rate capability with a capacitance retention of 67.6% of its initial value was observed. The quite low solution resistance (Rs) value of 281.0 × 10−3 Ohm and charge transfer resistance value (Rct) of 7.44 Ohm represents the excellence of the material. Further, a retention of 95.3% in coulombic efficiency after 1000 charge discharge cycles, without showing any significant degradation of the material, was also exhibited.

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Section: Galvanostatic Charge/discharge (Gcd)contrasting

confidence: 53%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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An Amazingly Simple, Fast and Green Synthesis Route to Polyaniline Nanofibers for Efficient Energy Storage

et al. 2020

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“…A relatively sharp peak that appears at ca. 1633 shall be assigned to the vibration of P=O 22 or the bending modes of physically adsorbed water that existed in the interlamination of phyllosilicate structure 29 . The peak at about 1050 cm −1 with an insignificant shoulder at ca.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, in the FT-IR spectrum of Figure 2B, the most prominent vibration band at ca. 3440 cm À1 can be ascribed to the stretching vibrations of secondary amine of -NHand protonated imine of -NH + =, which both come from the protonated aniline monomer in PANI nanorods, 22 which is overlapped with the -OH stretching in chemical water of NiPS. 27 The doublets situated at 2935 and 2876 cm À1 are caused by the symmetric and asymmetric vibrations of -CH 2 -, 28 respectively.…”

Section: Structure and Property Of Pani@nipsmentioning

confidence: 99%

Synthesis and application of Setaria viridis‐like heterostructures using nickel phyllosilicate decorating polyaniline nanorods: Toward the robust and wear‐resisting epoxy‐based composites

Jiang,

Nie,

Yang

et al. 2023

Polymer Composites

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Performance improvement to epoxy (EP)‐based composites is imperative yet a challenge for the application of high‐quality tribo‐materials. In this study, we reported the successful construction of a Setaria viridis‐like heterostructure using the fine nickel phyllosilicate lamellae to decorate the rod‐shaped polyaniline, and the corresponding polymer composites involving diverse mass ratios of EP resin and the heterostructures were prepared successively. The dry‐sliding tests confirmed the created composites had a significantly enhanced resistance to wear, and a concentration of 5% heterostructures dropped the wear rate to the lowest value of 1.5 × 10−5 mm3/Nm, which was ca. 78.6% lower than pure resin. The augmented wear resistance should be closely related to the enhanced strength, stiffness, and hardness. Moreover, the introduced heterostructures also improved the thermal stabilities of EP‐based composites, shifting the thermal decomposition to higher temperatures and restraining the mass loss rate to some extent. This study offered a promising pathway to develop high‐quality polymeric tribo‐materials.Highlights A Setaria viridis‐like heterostructures of PANI@NiPS were facilely synthesized. Adequate PANI@NiPS enhanced the tensile properties and hardness moderately. PANI@NiPS showed a considerable positive influence on wear resistance. PANI@NiPS improved the thermal stabilities of EP composites.

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Solvent‐Resistant Wearable Triboelectric Nanogenerator for Energy‐Harvesting and Self‐Powered Sensors

Yu,

et al. 2024

Energy & Environ Materials

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Wearable triboelectric nanogenerators (TENGs) have attracted attention owing to their ability to harvest energy from the surrounding environment without maintenance. Herein, polyetherimide–Al2O3 (PAl) and polyvinylidene fluoride‐co‐hexafluoropropylene (PVDF‐HFP, PH) nanofiber membranes were used as tribo‐positive and tribo‐negative materials, respectively. Phytic acid‐doped polyaniline (PANI)/cotton fabric (PPCF) and ethylenediamine (EDA)‐crosslinked PAl (EPAl) nanofiber membranes were used as triboelectrode and triboencapsulation materials, respectively. The result showed that when the PAl–PH‐based TENG was shaped as a circle with a radius of 1 cm, under the pressure of 50 N, and the frequency of 0.5 Hz, the open‐circuit voltage (Voc) and short‐circuit current (Isc) reached the highest value of 66.6 V and −93.4 to 110.1 nA, respectively. Moreover, the PH‐based TENG could be used as a fabric sensor to detect fabric composition and as a sensor‐inductive switch for light bulbs or beeping warning devices. When the PAl–PH‐based TENG was shaped as a 5 × 5 cm2 rectangle, a 33 μF capacitor could be charged to 15 V in 28 s. Interestingly, compared to PAl nanofiber membranes, EPAl nanofiber membranes exhibited good dyeing properties and excellent solvent resistance. The PPCF exhibited <5% resistance change after washing, bending, and stretching.

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Phytic Acid-Doped Cross-linked Polyaniline Nanofibers for Electrochemical Supercapacitor Electrode Applications

Cited by 9 publications

References 37 publications

An Amazingly Simple, Fast and Green Synthesis Route to Polyaniline Nanofibers for Efficient Energy Storage

An Amazingly Simple, Fast and Green Synthesis Route to Polyaniline Nanofibers for Efficient Energy Storage

Synthesis and application of Setaria viridis‐like heterostructures using nickel phyllosilicate decorating polyaniline nanorods: Toward the robust and wear‐resisting epoxy‐based composites

Solvent‐Resistant Wearable Triboelectric Nanogenerator for Energy‐Harvesting and Self‐Powered Sensors

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