Investigations of
 <scp>
 2D Ti
 3
 C
 2
 </scp>
 (
 <scp>MXene</scp>
 )‐
 <scp>
 CoCr
 2
 O
 4
 </scp>
 nanocomposite as an efficient electrode material for electrochemical supercapacitors

Shafique, Rubia; Rani, Malika; Mahmood, Asif; Alshgari, Razan A.; Batool, Kiran; Yaqoob, Tahira; Khan, Safia; Murtaza, G.

doi:10.1002/er.7605

Cited by 18 publications

(5 citation statements)

References 111 publications

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“…5 by varying the catalyst's powder on GCE. 49 Anodic peak current indicated the surface activity of the modified electrodes owing to produced electric current. Larger the oxidation peak current produced in standard redox system, higher will be the ECSA of the material.…”

Section: Resultsmentioning

confidence: 99%

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

Khan¹,

Shah²,

Ahmad³

et al. 2022

J. Electrochem. Soc.

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RuO2 and PdO promoted CuO/Al2O3 mixed metal oxide nanostructures synthesized via co-impregnation technique demonstrated a robust electrocatalytic activity towards ammonia electro-oxidation (AEO). Physio-chemically characterized RuO2-CuO/Al2O3 and PdO-CuO/Al2O3 catalyst powders exhibited high electrochemical active surface area (ECSA), the highest being shown by 1% RuO2-CuO/Al2O3. All fabricated electrodes displayed pleasing electroactive response towards AEO but ternary metal oxides showed superior and promoted catalytic output owing to their larger ECSA, higher current densities (j), larger diffusion coefficients (D°), greater apparent rate constants (kapp), and lower charge transfer resistance (Rct) values. Lower values of Rct obtained from EIS indicated the facilitation of electro-oxidation process over modified electrodes. The finest catalysis performance is expressed by 1% RuO2-CuO/Al2O3 producing the maximum oxidation current. All of the promoted CuO/Al2O3 mixed metal oxide exhibited excellent stability and reproducibility in analyte solution. Consequently, γ-Al2O3 supported metal oxide electrocatalysts can be of great socio-economic significance by enhancing the energy production kinetics thereby achieving a higher energy output.

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Section: Resultsmentioning

confidence: 99%

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

Khan¹,

Shah²,

Ahmad³

et al. 2022

J. Electrochem. Soc.

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“…However, Rp and Y0 which are essential components of the conductivity process are significantly impacted. 39 When analyzing with an analogous circuit, a semicircle appears in the Nyquist plot representing the high-frequency region (see Fig. 6).…”

Section: Resources and Characterizationmentioning

confidence: 99%

Revolutionizing Supercapacitors with Next-Level Performance: Developing an Innovative MXene-Based Cobalt Oxide Composite Electrode for Enhanced Supercapacitive Energy Storage Applications

Batool,

Rani,

Shafique

et al. 2023

ECS J. Solid State Sci. Technol.

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A novel Co3O4/MXene composite electrode has been synthesized through an innovative co-precipitation method. The composite has a structure similar to a layered framework, with the cobalt-cobalt (Co3O4) nanosheets exhibiting dangling lattice fringes-spacings of 0.31 and 0.25 nm indexed to the (100) plane of the nanosheet. The composite's morphology has been characterized using transmission electron microscopy, electrochemical impedance spectroscopy (EIS), and X-ray diffraction. The electrostatic of the Co3O4 nanosheet onto MXene surfaces has been demonstrated by EIS. The results of the EIS show that the covalent nanosheet is rearranged in a layer-like manner, resulting in the formation of a nanocomposite with a surface charge-discharge ratio of 0.1M H2SO4 and 1M KOH electrolytes. Furthermore, the electrochemical characteristics of the modified electrode have been investigated by spectrophotometric analysis and cyclic voltammogram. The study's findings contribute to the global pursuit of sustainability by enabling higher energy densities and faster charge-displacements, facilitating the transition to cleaner and more efficient energy solutions. This research not only advances electrode engineering but also empowers various energy storage applications, from portable electronics to renewable energy systems.

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“…Following collection, the paste was dried set for 48 h at 60 °C in a vacuum oven. Exfoliated MXene has finally been produced as a nanopowder [56].…”

Section: D-mxene Synthesis (Ti 3 C 2 T X )mentioning

confidence: 99%

Lead integrated two-dimensional (MXene/PbCrO₄) nanocomposite designed for energy storage and photocatalytic degradation applications

Akram,

Rani,

Batool

et al. 2023

Phys. Scr.

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Supercapacitors (SCs), among other electrochemical device applications, require materials with maximal energy storage capacity, and the stacked two-dimensional titanium carbide MXene (Ti3C2) sparked the development of these materials. This paper embellished to present smoothed MXene/PbCrO4 nanocomposite via co-precipitation method along with modified sol–gel achieved lead chromate (PbCrO4) nano-crystalline for energy storage and photocatalytic applications using ethylene glycol as connecting agent to restrict nano-particle growth. It is evident from photoluminescence spectra that peak intensity has decreased, whilst Raman spectra show the presence of MXene and lead peaks in the nanocomposite, whereas FTIR has revealed the presence of functional groups in synthesized material. According to calculations made using EIS spectra, the charge transfer resistance is 1.4 Ω, with the electron shift rate constant Kapp value 6.98 10−9 cm s−1. Additionally, the electrochemical performance of the designed material in supercapacitors at 0.3Ag−1 of current density indicates elevated capacitance of 5408 Fg−1 with scan rate of 10 mV s−1 using 1MKOH aqueous electrolyte, resulting in power and energy densities of 2991.8 W kg−1 and 110.1 Wh K−1 g−1, respectively. UV–vis spectra shows the nanocomposite has a 1.86 eV band gap that, in the presence of direct sunlight, might cause the destruction of MB dye at a rate of 92.79%. These findings suggested that the newly created MXene/PbCrO4 nanocomposite demonstrates evidence of substantial features as compared to single materials has potential as an electrode material for supercapacitors as well as best photocatalyst for the degradation of organic pollutants regarding water purification.

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Investigations of 2D Ti ₃ C ₂ ( MXene )‐ CoCr ₂ O ₄ nanocomposite as an efficient electrode material for electrochemical supercapacitors

Cited by 18 publications

References 111 publications

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

Revolutionizing Supercapacitors with Next-Level Performance: Developing an Innovative MXene-Based Cobalt Oxide Composite Electrode for Enhanced Supercapacitive Energy Storage Applications

Lead integrated two-dimensional (MXene/PbCrO₄) nanocomposite designed for energy storage and photocatalytic degradation applications

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Investigations of 2D Ti 3 C 2 ( MXene )‐ CoCr 2 O 4 nanocomposite as an efficient electrode material for electrochemical supercapacitors

Cited by 18 publications

References 111 publications

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO2-CuO/Al2O3) and Palladium Oxide (PdO-CuO/Al2O3): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO2-CuO/Al2O3) and Palladium Oxide (PdO-CuO/Al2O3): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

Revolutionizing Supercapacitors with Next-Level Performance: Developing an Innovative MXene-Based Cobalt Oxide Composite Electrode for Enhanced Supercapacitive Energy Storage Applications

Lead integrated two-dimensional (MXene/PbCrO4) nanocomposite designed for energy storage and photocatalytic degradation applications

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Resources

About

Investigations of 2D Ti ₃ C ₂ ( MXene )‐ CoCr ₂ O ₄ nanocomposite as an efficient electrode material for electrochemical supercapacitors

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

Lead integrated two-dimensional (MXene/PbCrO₄) nanocomposite designed for energy storage and photocatalytic degradation applications