Doping effects of cerium ion on structure and electrochemical properties of polyaniline

Li, Zhihua; Shen, Yuting; Li, Yanbo; Zheng, Feng; Liu, Lanlan

doi:10.1002/pi.5487

Cited by 14 publications

(9 citation statements)

References 48 publications

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“…The preparation of PAMPS and PANI hollow microspheres has been described in previous work in detail. 17,18 PAMPS was prepared by the polymerization of 2-acrylamido-2-methylpropane acid. The number-average molecular weight of PAMPS was 2006.…”

Section: Methodsmentioning

confidence: 99%

Preparation of polyaniline hollow microspheres/zinc composite and its application in lithium battery

Shen

et al. 2018

High Performance Polymers

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Polyaniline (PANI) hollow microspheres were synthesized by a self-assembly method in aqueous solution of poly (2-acrylamido-2-methylpropane sulfonic acid) (PAMPS), and then microspheric zinc (Zn) was introduced into PANI to prepare PANI hollow microspheres/Zn composite. The structure and morphology of as-synthesized samples were investigated by Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, and scanning electron microscopy, respectively. The charge/discharge property, cyclic voltammetry, and alternating current (AC) impedance spectroscopy of as-prepared samples were also examined in detail. The results showed that the electrical conductivity of PANI/Zn composite reached 21.2 ± 0.16 S/cm at 20 wt% of Zn, which was 11.4 S/cm higher than that of PANI. The first discharge capacity of PANI/Zn lithium battery reached 570.8 mAh/g at a current density of 0.2 mA/cm2. After 15 cycles, it remained at 159 mAh/g, which was 107 mAh/g higher than that of PANI lithium battery. Furthermore, the results of AC impedance test showed that the addition of Zn powders significantly reduced the internal resistance of battery. Compared with PANI, PANI/Zn composite showed greater capacity, higher conductivity, and charge/discharge efficiency, which was more suitable for the cathode material of high performance lithium battery.

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Section: Methodsmentioning

confidence: 99%

Preparation of polyaniline hollow microspheres/zinc composite and its application in lithium battery

Shen

et al. 2018

High Performance Polymers

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“…The performance metrics were calculated after deducing the IR drop, as shown in Table 1. The increase in the number of delocalized ions of PANI by doping of Ce improved the conductivity and enhanced the specific capacity in Ce-doped PANI (Li et al, 2018). Also, the pseudocapacitive contribution of the Fe 3 O 4 nanoparticles increased the specific capacity of composites.…”

Section: Electrochemical Characterizationsmentioning

confidence: 97%

“…In recent years, the doping of f-block Ce has gained more attention. It is due to the higher stability stemming from the accessibility of the shielded 4f orbitals for strong binding affinity with the nitrogen lone pair of PANI and the suitable redox activity (Tharani and Vinayagam, 2015;Li et al, 2018). Of the metal compounds, spinel metal oxides Fe 3 O 4 nanoparticles have received more considerable attention.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al prepared PANI/Ce 3+ and PANI/Ce 4+ composites by in situ polymerization and found that the electrical conductivity of PANI/Ce(NO 3 ) 3 increased by 377% in comparison to pure PANI. The result was attributed to more charges and faster movements of Ce 3+ (Li et al, 2018). Rantho et al fabricated symmetric supercapacitors with supercapattery behavior based on carbonized iron cations adsorbed onto polyaniline, which exhibited a higher energy and power density of 41.3 Whkg −1 and 231.9 Wkg −1 , respectively (Rantho et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Ce-Doped PANI/Fe3O4 Nanocomposites: Electrode Materials for Supercapattery

et al. 2021

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In this study, we report on a combined approach to preparing an active electrode material for supercapattery application by making nanocomposites of Polyaniline/Cerium (PANI/Ce) with different weight percentages of magnetite (Fe3O4). Fourier-transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD) analyses supported the interaction of PANI with Ce and the formation of the successful nanocomposite with magnetite nanoparticles. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses showed the uniform and porous morphology of the composites. Cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) were used to test the supercapattery behavior of the nanocomposite electrodes in 1.0 M H2SO4. It was found that the supercapattery electrode of PANI/Ce+7 wt.% Fe3O4 exhibited a specific capacity of 171 mAhg−1 in the potential range of −0.2 to 1.0 V at the current density of 2.5 Ag−1. Moreover, PANI/Ce+7 wt.% Fe3O4 revealed a power density of 376.6 Wkg−1 along with a maximum energy density of 25.4 Whkg−1 at 2.5 Ag−1. Further, the cyclic stability of PANI/Ce+7 wt.% Fe3O4 was found to be 96.0% after 5,000 cycles. The obtained results suggested that the PANI/Ce+Fe3O4 nanocomposite could be a promising electrode material candidate for high-performance supercapattery applications.

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“…This battery‐like behavior confers pseudocapacitors with much higher specific capacitance and energy density than EDLCs. Polyaniline (PANI) is considered to be one of the most competitive pseudocapacitive materials due to its cost‐effectiveness, facile synthesis and large theoretical specific pseudocapacitance . However, similar to other conducting polymers, the low power density and instability of PANI obstruct its development for commercial applications .…”

Section: Introductionmentioning

confidence: 99%

Effect of dopant and oxidant on the electrochemical properties of polyaniline/graphite nanoplate composites

Zhao

Grätz

Pionteck

2018

Polymer International

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Optimizing the synthesis parameters of polyaniline/graphite nanoplate (PANI/GNP) composite is essential to the final electrochemical performance. Herein, the electrochemical properties of PANI/GNP composites, prepared by in situ chemical polymerization using varying amounts of different oxidants, with or without the addition of 4-dodecylbenzenesulfonic acid (DBSA) as dopant, were investigated. Cyclic voltammetric results suggested that a stoichiometric amount of the oxidant iron chloride (FeCl 3 ) was beneficial to the electrochemical properties of the composites. The use of ammonium persulfate (APS) instead of FeCl 3 as oxidant largely increased the actual PANI content, conductivity and specific capacitance of the PANI/GNP composites. The dopant DBSA increased the conductivity of the PANI/GNP composites but did not show a positive effect on the electrochemical behavior. The cyclic voltammograms of the PANI/GNP composites indicated that the pseudocapacitance of PANI contributes more than the electrical double-layer capacitance of GNP to the capacitance of the composites, while the presence of GNP plays an essential role in the rate capability of the composites. In this study, PANI/GNP (1:1) composite synthesized with an APS to aniline molar ratio of 1 showed a balanced combination of high specific capacitance (180.5 F g −1 at 20 mV s −1 ) and good rate capability (78% retention at 100 mV s −1 ).

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Doping effects of cerium ion on structure and electrochemical properties of polyaniline

Cited by 14 publications

References 48 publications

Preparation of polyaniline hollow microspheres/zinc composite and its application in lithium battery

Preparation of polyaniline hollow microspheres/zinc composite and its application in lithium battery

Ce-Doped PANI/Fe3O4 Nanocomposites: Electrode Materials for Supercapattery

Effect of dopant and oxidant on the electrochemical properties of polyaniline/graphite nanoplate composites

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