Maize-like ionic liquid@polyaniline nanocomposites for high performance supercapacitor

Song, Hui‐Hua; Zhang, Jing; Song, Pengfei

doi:10.1515/epoly-2019-0032

Cited by 10 publications

(3 citation statements)

References 55 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%

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%

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

et al. 2020

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“…This is due to the quasi‐reversible feature of the redox reactions. [ 47–49 ] The GCD curves are non‐linear and symmetric, thus confirming the presence of pseudocapacitive behavior of the redox reactions of the underlying faradic processes (Figure 6b). A significantly high specific capacitance of 144 F g –1 is recorded at a current density of 1.67 A g –1 (1 mA).…”

Section: Resultsmentioning

confidence: 66%

Fabric‐Based Wearable Self‐Powered Asymmetric Supercapacitor Comprising Lead‐Free Perovskite Piezoelectrodes

Padha

Verma

Arya

2022

Adv Materials Technologies

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promising prospects for next-generation consumer electronics in these devices, forming a bridge between traditional capacitor and battery, demonstrating quick charging/discharging, excellent cyclic stabilities, higher power densities, environment benignancy, low maintenance cost, long lifespan, and safety. [2,3] The technological advancement in consumer electronics for smart wearables has led to the innovation of bendable displays, flexible mobile phones, fitness bands, electronic skin, and smartwatches. [4][5][6] Additionally, in remote areas having inadequate power supply and scarcity of other energy reservoirs, self-powered dynamic devices have emerged as independent and self-sustainable systems for future electronics. The sustainability of these systems without any external storage system like batteries/ fuel cells minimizes the bulkiness of the system, thereby making them flexible for a variety of applications. [7][8][9] Flexible allsolid-state self-chargeable supercapacitors are a potential candidate for the new emerging wearable energy storage devices. They are safe, thin, lightweight, extremely flexible, and inexpensive. [10,11] These supercapacitors are based on wearable electronics technology, involving no power or charging source, but they suffer from poor performance. Furthermore, in contrast to traditional supercapacitors, the allsolid-state supercapacitors eliminate the risk of electrolyte spilling as well as short-circuiting between the electrodes. [12] Recently, self-powered stretchable systems or sensing platforms have been gaining popularity. Zhang et al. [13] designed an all-in-one stretchable self-powered system using a gold (Au)based triboelectric nanogenerator and stretchable graphenebased strain sensor. The coupled design principle of electronic materials and device architecture provides a promising method to develop high-performance wearable/stretchable energy storage devices and self-powered stretchable systems for future bio-integrated electronics. Practical applications of next-generation stretchable electronics hinge on developing sustained power supplies to drive highly sensitive on-skin sensors and wireless transmission modules. In another experiment, a low-cost, scalable, and facile manufacturing approach based on laser-induced graphene foams was used to fabricate a self-powered wireless sensing platform. [14] It generated stableThe demand for flexible supercapacitor sustaining green energy can go a long way in mitigating the issue of no power source in wearable electronics. Herein, a novel strategy is used to develop a self-charging supercapacitor using lead-free perovskites as piezoelectrodes and polyvinyl alcohol-potassium hydroxide (PVA-KOH) film as ionogelled electrolyte. This approach is unique as the existing conventional self-powered devices are based only on piezoelectric electrolytes. The all-solid-state supercapacitor is asymmetric, with nickel stannate (NiSnO 3 ) acting as the positrode and ferrous stannate (FeSnO 3 ) as the negatrode. These materials are non-toxic, envi...

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“…It is possible to categorize these combinations between PANI and ionic liquids into three approaches. The first approach (approach I) consists of focusing on the morphology of PANI alert by replacing the conventional acidic polymerization media with ionic liquids, followed by an electrochemical investigation of the obtained nanostructured PANI in the conventional electrolytes [ 3 , 18 , 19 , 20 , 21 , 22 ]. The second approach (approach II) concentrates on the electrochemical study of the PANI in the ionic liquid-based electrolytes [ 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Non-Substituted Imidazolium-Based Electrolytes as Potential Alternatives to the Conventional Acidic Electrolytes of Polyaniline-Based Electrode Materials for Supercapacitors

Al-Zohbi,

Ghamouss,

Jacquemin

et al. 2024

Molecules

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Although disubstituted imidazolium cation is sterically crowded, hundreds of ionic liquids based on this cation have been reported as electrolytes for energy storage devices. In contrast to disubstituted imidazolium, non-substituted imidazolium is uncrowded sterically and has not yet been investigated as an electrolyte, to the best of our knowledge. Hence, imidazolium hydrogen sulfate [Imi][HSO4], in mixture with water, was studied as an electrolyte for PANI-based electrode materials. For comparison, pyrrolidinium with hydrogen sulfate or p-toluene sulfonate ([Pyrr][HSO4] or [Pyrr][PTS]), in mixture with water, were also investigated as alternatives to the conventional electrolyte (i.e., aqueous H2SO4) for PANI electrodes. Walden plots of binary mixture ionic liquid–water weight ratios with the optimal ionic conductivity (i.e., [Imi][HSO4]/water 48/52 wt% (195.1 mS/cm), [Pyrr][HSO4]/water 41/59 wt% (186.6 mS/cm), and [Pyrr][PTS]/water 48/52 wt% (43.4 mS/cm) along with the electrochemical performances of PANI in these binary mixtures showed that [Pyrr][HSO4]aq or [Imi][HSO4]aq are convenient electrolytes for PANI/PIL, as opposed to [Pyrr][PTS]aq. Furthermore, replacing the conventional aqueous electrolyte H2SO4 with [Imi][HSO4] aq increased the specific capacitance of PANI/PIL from 249.8 to 268.5 F/g at 15 mV/s. Moreover, PANI/PIL electrodes displayed a quasi-ideal capacitive behavior in [Imi][HSO4]aq (the correction factor of CPE4 was 0.99). This primary study has shown that non-substituted imidazolium as an electrolyte could enhance the electrochemical performances of PANI electrodes and could be a good alternative to the conventional electrolyte.

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Maize-like ionic liquid@polyaniline nanocomposites for high performance supercapacitor

Cited by 10 publications

References 55 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

Fabric‐Based Wearable Self‐Powered Asymmetric Supercapacitor Comprising Lead‐Free Perovskite Piezoelectrodes

Non-Substituted Imidazolium-Based Electrolytes as Potential Alternatives to the Conventional Acidic Electrolytes of Polyaniline-Based Electrode Materials for Supercapacitors

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