Fabrication of PANI/MWCNT supercapacitors based on a chitosan binder and aqueous electrolyte for enhanced energy storage

Inci Yesilyurt, Ezgi; Pionteck, Jürgen; Simon, Frank; Voit, Brigitte

doi:10.1039/d3lp00061c

Cited by 10 publications

(6 citation statements)

References 67 publications

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“…The diffraction pattern of pure PANI reveals broad peaks at 2θ = 9.5 • , 15.8 • , 20.83 • , and 25.91 • , which are characteristic of doped PANI [47,48]. The composite also shows characteristic peaks of doped PANI that are absent in the XRD spectra of pure CDC, and these peaks are similar to those of the PANI/MWCNT composites we developed in our previous study [43]. When compared to the pristine PANI, the intensity of the diffraction peaks in the composites reduces with the inclusion of the CDC.…”

Section: Resultssupporting

confidence: 77%

“…The shape of the high-resolution C 1 s spectrum recorded from the pristine CDC (figure 5(b)) is dominated by a strongly asymmetric component peak Gr appearing at 284.08 eV. This is because the graphitelike lattice is composed of sp 2 -hybridized carbon atoms, which were also identified in the pristine MWCNT in our prior study [43].…”

Section: Resultsmentioning

confidence: 60%

“…The corresponding structure observed in the PANI molecules is referred to as a polaron lattice. The source for the all other component peaks for pristine PANI were described in SI and our previous study [43].…”

Section: Resultsmentioning

confidence: 99%

“…The PANI/CDC composites were synthesized using a similar method as described in our previous work on PANI/MWCNT composites [43]. Diagram of the synthesis process of PANI/CDC composites is shown in figure 1.…”

Section: Synthesis Of Pani/cdc Compositesmentioning

confidence: 99%

“…The electrode inks were manufactured by utilizing a non-toxic chitosan binder, following the methodology outlined in our previous research [43]. In its dried state, ink is composed of approximately 5.4% binder and 94.6% active material (by mass).…”

Section: Preparation Of Electrode Inks With Chitosan Bindermentioning

confidence: 99%

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Screen printable PANI/carbide-derived carbon supercapacitor electrode ink with chitosan binder

Yesilyurt,

Pionteck,

Keskinen

et al. 2023

Flex. Print. Electron.

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Polyaniline (PANI)/carbide-derived carbon (CDC) was synthesized by using in-situ chemical oxidative polymerization of PANI in presence of CDC. Conductive electrode ink materials were prepared by using eco-friendly chitosan binder in water media. In the following, symmetrical supercapacitors (SCs) were fabricated by both doctor blade coating and screen printing technique. The electrical conductivity, morphology, specific capacitance, and energy density of these composites were evaluated for their applicability as SC electrodes. Pure PANI with chitosan binder was not printable because of its brittleness, however, the presence of CDC allows the preparation of smooth films which are suitable for electrode preparation. The fabricated composite electrode has a higher specific capacitance (up to 419 F g−1) and higher energy density (up to 6.7 W h kg−1) compared to the pristine CDC electrode. The capacitance of screen-printed SCs was 440–470 mF with an equivalent series resistance of about 27 Ω.

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Section: Resultssupporting

confidence: 77%

Section: Resultsmentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Section: Synthesis Of Pani/cdc Compositesmentioning

confidence: 99%

Section: Preparation Of Electrode Inks With Chitosan Bindermentioning

confidence: 99%

See 3 more Smart Citations

Screen printable PANI/carbide-derived carbon supercapacitor electrode ink with chitosan binder

Yesilyurt,

Pionteck,

Keskinen

et al. 2023

Flex. Print. Electron.

Self Cite

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WO₃ Nanoparticle/Biomass Derived N‐Doped Activated Carbon Decorated with Polyaniline Nanofibers Ternary Nanocomposite for High‐Performance Symmetric and Asymmetric Supercapacitor

Bejjanki,

Mohan Seepana,

Kumar

et al. 2024

ChemistrySelect

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Supercapacitors have captured the curiosity of researchers due to their extremely high energy storage capacity. Hybrid supercapacitors deliver high specific capacitance values compared to the exciting (electrical double layer capacitor) EDLC and pseudocapacitors. This work presents a simple and scalable synthetic method to design a hybrid ternary composite as electrode material. In this work, the combination of EDLC‐type behaviour material, i. e., sustainable biomass‐derived Nitrogen‐doped activated carbon (NAC) and pseudocapacitive behaviour electrode materials, i. e., metal oxides (tungsten oxide) and conductive polymer (polyaniline) are selected to achieve a high gravimetric capacity. The PANi/WO3/NAC (PWNAC) ternary composite is tested for symmetric and asymmetric supercapacitor (ASC). In a symmetric capacitor, PWNAC acts as both the positive and negative electrode, whereas in ASC, PWNAC acts as the positive electrode and NAC as the negative electrode. It is observed that the ASC shows a better capacitance value than symmetric. ASC operates at a potential range of 1.4 V in 1 M H2SO4 aqueous electrolyte, shows a maximum capacitance of 608.2 F/g at 0.5 A/g, and has long capacitance retention of 98.32 % of its initial capacitance after 2000 charge‐discharge cycles.

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Spectroscopic, Hartree–Fock and DFT study of the molecular structure and electronic properties of functionalized chitosan and chitosan-graphene oxide for electronic applications

Elhaes,

Ezzat,

Ibrahim

et al. 2024

Opt Quant Electron

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Chitosan is a natural biopolymer that is classified among the most important biodegradable polysaccharides widely used in different environmental and industrial applications, such as tissue engineering, biomedical devices, electronics and supercapacitors, water filtration, and food packaging. Theoretical infrared spectra of chitosan were computed using both Hartree–Fock (HF) and Density Functional Theory (DFT) methods, with different basis sets, including 3-21g, 6-31g, 6-311g, LANL2DZ, and LANL2MB, to identify the ideal basis set that is closest to the experimental results. DFT:B3LYP/3-21g** was the best model for chitosan and was used to investigate its functionalization with various functional groups such as (OH, NH2, COOH, CH3, CHO, CN, SH) and graphene oxide (GO). Molecular electrostatic potential, total dipole moment, and HOMO–LUMO band gap (∆E) calculations indicated that Chitosan-GO is the most reactive and stable structure, with a ∆E of 0.3023 eV. Consequently, Chitosan–GO composite was prepared and analyzed using ATR–FTIR spectroscopy. The spectra revealed a new band at 1620 cm−1, which was attributed to the COOH group of GO and was red-shifted owing to the hydrogen bonding between the GO and NH2 of chitosan, confirming the synthesis of Chitosan–GO composite. The significant improvement in the electronic properties of Chitosan-GO based on the obtained results promotes it to be used in electronic applications such as the development of electrodes for supercapacitors.

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Fabrication of PANI/MWCNT supercapacitors based on a chitosan binder and aqueous electrolyte for enhanced energy storage

Abstract: PANI/MWCNT electrode inks were developed with chitosan as an eco-friendly binder in water. Fabricated symmetric supercapacitors with PANI/MWCNT exhibited high specific capacitance and energy density suitable for sustainable energy storage applications.

Cited by 10 publications

References 67 publications

Screen printable PANI/carbide-derived carbon supercapacitor electrode ink with chitosan binder

Screen printable PANI/carbide-derived carbon supercapacitor electrode ink with chitosan binder

WO₃ Nanoparticle/Biomass Derived N‐Doped Activated Carbon Decorated with Polyaniline Nanofibers Ternary Nanocomposite for High‐Performance Symmetric and Asymmetric Supercapacitor

Spectroscopic, Hartree–Fock and DFT study of the molecular structure and electronic properties of functionalized chitosan and chitosan-graphene oxide for electronic applications

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Fabrication of PANI/MWCNT supercapacitors based on a chitosan binder and aqueous electrolyte for enhanced energy storage

Abstract: PANI/MWCNT electrode inks were developed with chitosan as an eco-friendly binder in water. Fabricated symmetric supercapacitors with PANI/MWCNT exhibited high specific capacitance and energy density suitable for sustainable energy storage applications.

Cited by 10 publications

References 67 publications

Screen printable PANI/carbide-derived carbon supercapacitor electrode ink with chitosan binder

Screen printable PANI/carbide-derived carbon supercapacitor electrode ink with chitosan binder

WO3 Nanoparticle/Biomass Derived N‐Doped Activated Carbon Decorated with Polyaniline Nanofibers Ternary Nanocomposite for High‐Performance Symmetric and Asymmetric Supercapacitor

Spectroscopic, Hartree–Fock and DFT study of the molecular structure and electronic properties of functionalized chitosan and chitosan-graphene oxide for electronic applications

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Product

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WO₃ Nanoparticle/Biomass Derived N‐Doped Activated Carbon Decorated with Polyaniline Nanofibers Ternary Nanocomposite for High‐Performance Symmetric and Asymmetric Supercapacitor