3D Ti3C2TX@PANI-reduced graphene oxide hydrogel and defective reduced graphene oxide hydrogel as anode and cathode for high-energy asymmetric supercapacitor

Liao, Peng; Zeng, Yang; Qiu, Zenghui; Hao, Shengcai; He, Jiaqi; Xu, Haijun; Chen, Shaowei

doi:10.1016/j.jallcom.2023.169593

Cited by 7 publications

(4 citation statements)

References 75 publications

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“…Also, the specific capacitance retention was found to be 90.07% and 71.02% for 3000 consecutive cycles at 0.5 A•g −1 for the PAni@OS−rGO (1:1) and PAni@OS−rGO (2:1) electrodes, respectively (Figure 9d). The electrodes in this research are comparable to those in other previous reports [7,13,[40][41][42][43][44][45][46][47][48][49]; these results suggest the superiority of PAni@OS−rGO materials over those of other rGO-based electrodes (see Table 1). trated in the Faradaic characteristic and charge transport.…”

Section: Electrochemical Studiessupporting

confidence: 89%

Investigation of Hybrid Electrodes of Polyaniline and Reduced Graphene Oxide with Bio-Waste-Derived Activated Carbon for Supercapacitor Applications

Benchikh,

Ezzat,

Sabantina

et al. 2024

Polymers

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Graphene-based materials have been widely studied in the field of supercapacitors. However, their electrochemical properties and applications are still restricted by the susceptibility of graphene-based materials to curling and agglomeration during production. This study introduces a facile method for synthesizing reduced graphene oxide (rGO) nanosheets and activated carbon based on olive stones (OS) with polyaniline (PAni) surface decoration for the development of supercapacitors. Several advanced techniques were used to examine the structural properties of the samples. The obtained PAni@OS−rGO (1:1) electrode exhibits a high electrochemical capacity of 582.6 F·g−1 at a current density of 0.1 A·g−1, and an energy density of 26.82 Wh·kg−1; thus, it demonstrates potential for efficacious energy storage. In addition, this electrode material exhibits remarkable cycling stability, retaining over 90.07% capacitance loss after 3000 cycles, indicating a promising long cycle life. Overall, this research highlights the potential of biomass-derived OS in the presence of PAni and rGO to advance the development of high-performance supercapacitors.

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Section: Electrochemical Studiessupporting

confidence: 89%

Investigation of Hybrid Electrodes of Polyaniline and Reduced Graphene Oxide with Bio-Waste-Derived Activated Carbon for Supercapacitor Applications

Benchikh,

Ezzat,

Sabantina

et al. 2024

Polymers

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“…XPS surveys were then conducted to discuss the elemental composition and chemical bonding of the examples . From the survey spectra, as shown in Figure a,b, the C 1s, N 1s, Ti 2p, and O 1s electrons can be detected at approximately 284, 399, 459, and 530 eV in the Ti 3 C 2 T X and Ti 3 C 2 T X @PANI samples, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…XPS surveys were then conducted to discuss the elemental composition and chemical bonding of the examples. 49 From the survey spectra, as shown in Figure 3a,b, the C 1s, N 1s, Ti 2p, and O 1s electrons can be detected at approximately 284, 399, 459, and 530 eV in the Ti 3 C 2 T X and Ti 3 C 2 T X @PANI samples, respectively. Notably, an evident increase in the intensity of the N 1s peak is observed in the latter due to the incorporation of PANI into the Ti 3 C 2 T X nanosheets.…”

Section: ■ Introductionmentioning

confidence: 96%

3D Hierarchical Ti₃C₂T_X@PANI-Reduced Graphene Oxide Heterostructure Hydrogel Anode and Defective Reduced Graphene Oxide Hydrogel Cathode for High-Performance Zinc Ion Capacitors

Liao,

Qiu,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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The practical application of supercapacitors (SCs) has been known to be restricted by low energy density, and zinc ion capacitors (ZICs) with a capacitive cathode and a battery-type anode have emerged as a unique technology that can effectively mitigate the issue. To this end, the design of electrodes with low electrochemical impedance, high specific capacitance, and outstanding reaction stability represents a critical first step. Herein, we report the synthesis of hierarchical Ti3C2T X @PANI heterostructures by uniform deposition of conductive polyaniline (PANI) polymer nanofibers on the exposed surface of the Ti3C2T X nanosheets, which are then assembled into a three-dimensional (3D) cross-linking framework by a graphene oxide (GO)-assisted self-convergence hydrothermal strategy. This resulting 3D Ti3C2T X @PANI-reduced graphene oxide (Ti3C2T X @PANI-RGO) heterostructure hydrogel shows a large surface area (488.75 F g–1 at 0.5 A g–1), outstanding electrical conductivity, and fast reaction kinetics, making it a promising electrode material. Separately, defective RGO (DRGO) hydrogels are prepared by a patterning process, and they exhibit a broad and uniform distribution of mesopores, which is conducive to ion transport with an excellent specific capacitance (223.52 F g–1 at 0.5 A g–1). A ZIC is subsequently constructed by utilizing Ti3C2T X @PANI-RGO as the anode and DRGO as the cathode, which displays an extensive operating voltage (0–3.0 V), prominent energy density (1060.96 Wh kg–1 at 761.32 W kg–1, 439.87 Wh kg–1 at 9786.86 W kg–1), and durable cycle stability (retaining 67.9% of the original capacitance after 4000 cycles at 6 A g–1). This study underscores the immense prospect of the Ti3C2T X -based heterostructure hydrogel and DRGO as a feasible anode and cathode for ZICs, respectively.

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“…Notwithstanding these findings, conjugated PANI faces a few inconveniences, like limited mechanical and thermal resilience along with minute particle dimensions, which can restrict its applicability. 26 To deal with the shortcomings of PANI, there have been some new advances in PANI-based composites with a variety of materials, such as PANI-ZrWPO 4 , 27 Pt/CNT@ PANI, 28 PANI/zeolite HY/TiO 2 , 29 cellulose/phytic acid/ polyaniline hydrogel, 30 UiO-66/PANI, 31 hierarchical Ti 3 C 2 TX@PANI, 32 PANI/SnO 2 , 33 etc.…”

Section: Introductionmentioning

confidence: 99%

1,2,4,5-Benzene Tetracarboxylic Acid-Doped Polyaniline/Protonated Carbon Nitride Nanostructures for Cr(VI) Adsorption in Water

Hsini,

Haounati,

Imgharn

et al. 2024

ACS Appl. Nano Mater.

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This work outlines the fabrication of a nanocomposite, namely, 1,2,4,5-benzene tetracarboxylic acid-doped polyaniline/protonated carbon nitride (H 4 BTC-PANI/pC 3 N 4 ) through a straightforward two-step process. Various advanced analytical tools validated the formation of the composite. Subsequently, the adsorption characteristics of the prepared composite for the uptake of Cr(VI) ions were assessed via batch adsorption experiments. Removal equilibrium and kinetic approaches clearly demonstrated the simulation of adsorption data via Langmuir and pseudo-second-order models. The thermodynamic analysis disclosed that the removal of Cr(VI) ions by the H 4 BTC-PANI/pC 3 N 4 material was a spontaneous, endothermic procedure associated with an increase in surface site availability randomness. It was found that by using 0.25 g/L of adsorbent dose at pH 2, almost 97.1% of the chromium was eliminated within an equilibrium time of 90 min. Furthermore, the maximum adsorbed amount was 1229 mg•g −1 , exceeding the capabilities of most similar adsorbents. The composites retained a significant adsorption capacity for Cr(VI) even after undergoing five regeneration cycles, demonstrating excellent reusability. Monte Carlo (MC) calculations were executed to search for the most stable configuration and adsorption energies of H 4 BTC on pC 3 N 4 , PANI on H 4 BTC/pC 3 N 4 , and Cr(VI) removal on H 4 BTC-PANI/pC 3 N 4 surfaces in the aqueous system. The experimental findings indicated that H 4 BTC-PANI/pC 3 N 4 holds significant promise as a cost-effective material for removing hexavalent chromium from wastewater, showcasing considerable potential for practical use.

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3D Ti3C2TX@PANI-reduced graphene oxide hydrogel and defective reduced graphene oxide hydrogel as anode and cathode for high-energy asymmetric supercapacitor

Cited by 7 publications

References 75 publications

Investigation of Hybrid Electrodes of Polyaniline and Reduced Graphene Oxide with Bio-Waste-Derived Activated Carbon for Supercapacitor Applications

Investigation of Hybrid Electrodes of Polyaniline and Reduced Graphene Oxide with Bio-Waste-Derived Activated Carbon for Supercapacitor Applications

3D Hierarchical Ti₃C₂T_X@PANI-Reduced Graphene Oxide Heterostructure Hydrogel Anode and Defective Reduced Graphene Oxide Hydrogel Cathode for High-Performance Zinc Ion Capacitors

1,2,4,5-Benzene Tetracarboxylic Acid-Doped Polyaniline/Protonated Carbon Nitride Nanostructures for Cr(VI) Adsorption in Water

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3D Ti3C2TX@PANI-reduced graphene oxide hydrogel and defective reduced graphene oxide hydrogel as anode and cathode for high-energy asymmetric supercapacitor

Cited by 7 publications

References 75 publications

Investigation of Hybrid Electrodes of Polyaniline and Reduced Graphene Oxide with Bio-Waste-Derived Activated Carbon for Supercapacitor Applications

Investigation of Hybrid Electrodes of Polyaniline and Reduced Graphene Oxide with Bio-Waste-Derived Activated Carbon for Supercapacitor Applications

3D Hierarchical Ti3C2TX@PANI-Reduced Graphene Oxide Heterostructure Hydrogel Anode and Defective Reduced Graphene Oxide Hydrogel Cathode for High-Performance Zinc Ion Capacitors

1,2,4,5-Benzene Tetracarboxylic Acid-Doped Polyaniline/Protonated Carbon Nitride Nanostructures for Cr(VI) Adsorption in Water

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3D Hierarchical Ti₃C₂T_X@PANI-Reduced Graphene Oxide Heterostructure Hydrogel Anode and Defective Reduced Graphene Oxide Hydrogel Cathode for High-Performance Zinc Ion Capacitors