Electrochemical performance of two-dimensional Ti3C2-Mn3O4 nanocomposites and carbonized iron cations for hybrid supercapacitor electrodes

Oyedotun, Kabir O.; Momodu, Damilola Y.; Naguib, Michael; Mirghni, Abdulmajid Abdallah; Masikhwa, T.M.; Khaleed, Abubakar A.; Kebede, Mesfin Abayneh; Manyala, Ncholu I.

doi:10.1016/j.electacta.2019.01.158

Cited by 57 publications

(19 citation statements)

References 75 publications

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“…The specific discharge capacity, Q s (mAhg −1 ) and energy efficiency, η(%) of electrodes was calculated from galvanostatic charge-discharge measurements by using the following equation where I represent discharge current, Δt is the discharge time taken to complete the discharge cycle, m is the active mass of the electrode. η E is energy efficiency, E d and E c represents the charge and discharges energy 31 . The assembling of the symmetric device has been done using gel electrolyte (PVA/KOH), which works both as an electrolyte and a separator.…”

Section: Methodsmentioning

confidence: 99%

Designing of Carbon Nitride Supported ZnCo2O4 Hybrid Electrode for High-Performance Energy Storage Applications

Sharma

Gaur

2020

Sci Rep

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this study reports a unique graphitic-c 3 n 4 supported Znco 2 o 4 composite, synthesized through a facile hydrothermal method to enhance the electrochemical performance of the electrode. the g-c 3 n 4 @ Znco 2 o 4 hybrid composite based electrode exhibits a significant increase in specific surface area and maximum specific capacity of 157 mAhg −1 at 4 Ag −1. Moreover, g-c 3 n 4 @Znco 2 o 4 electrode maintained significant capacity retention of 90% up to 2500 cycles. Utilizing this composite in the development of the symmetric device, g-c 3 n 4 @Znco 2 o 4 //g-c 3 n 4 @Znco 2 o 4 displays a specific capacity of 121 mAhg −1. The device exhibits an energy density of 39 Whkg −1 with an equivalent power density of 1478 Wkg −1. A good cycling stability performance with an energy efficiency of 75% and capacity retention of 71% was observed up to 10,000 cycles. The superior performance of g-C 3 n 4 @Znco 2 o 4 is attributed to the support of the g-c 3 n 4 which increases the surface area, electroactive sites and provides chemical stability for electrochemical performance. the outstanding performance of this exclusive device symbolizes remarkable progress in the direction of high-performance energy storage applications.

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Section: Methodsmentioning

confidence: 99%

Designing of Carbon Nitride Supported ZnCo2O4 Hybrid Electrode for High-Performance Energy Storage Applications

Sharma

Gaur

2020

Sci Rep

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“…EIS of device is shown in Figure d, the inset is a local spectrum. The result shows that R s value is 0.85 Ω. Co 2 NiO 4 /Ti 3 C 2 T x //AC supercapacitor possesses an energy density of 49.74 Wh kg −1 at power density of 2754.2 Wh/kg at 1 A g −1 , which is superior to some reported devices (Figure e) . Device keeps 90.4% of initial capacitance after 3500 cycles, demonstrating its good cycling stability, as shown in Figure f.…”

Section: Resultsmentioning

confidence: 83%

Enhanced Electrochemical Performance of Co₂NiO₄/Ti₃C₂T_x Structures through Coupled Synergistic Effects

Song

Liu

et al. 2019

ChemistrySelect

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In this work, Co 2 NiO 4 /MXene (Ti 3 C 2 T x ) composites as efficient electrode materials for supercapacitors are successfully synthesized by a facile one-pot hydrothermal route. The as-prepared products deliver a capacitance of 719.5 F g À 1 at 0.5 A g À 1 and keep 83.1% of initial capacitance after 10000 cycles, revealing the remarkable electrochemical performance compared with other two single electrodes. An asymmetric supercapacitor is fabricated, which presents an energy density of 49.74 Wh kg À 1 at a power density of 2752.21 W kg À 1 , demonstrating that the products can be potential candidates in high performance energy storage devices.[a] J.

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“…Figure 7f provides the Ragone plots of the device in this work and other ASCs. It can be clearly found that MXene/CoS 2 (CCH)//rGO ASCs possess higher energy density than NiCo 2 S 4 @CoS 2 @CC (17 Wh kg −1 ), Ti 3 C 2 /CuS//Ti 3 C 2 (15.4 Wh kg −1 ), d‐Ti 3 C 2 /NF//b‐Ti 3 C 2 (18.1 Wh kg −1 ), and Ti 3 C 2 ‐Mn 3 O 4 //C‐FP (28.3 Wh kg −1 ) at a current density of 1 A g −1 . Based on the above results, MXene/CoS 2 (CCH) composite with good electrochemical properties has excellent application prospects for energy storage devices.…”

Section: Resultsmentioning

confidence: 99%

One‐Step Synthesis of Nanostructured CoS₂ Grown on Titanium Carbide MXene for High‐Performance Asymmetrical Supercapacitors

Líu

et al. 2020

Adv Materials Inter

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MXene (2D titanium carbide) as the electrode material for supercapacitors has been studied extensively and deeply in recent years. In order to enhance the electrochemical performance of MXene, CoS2 nanoparticles grown on MXene surface are constructed by a simple one‐step solvent thermal method. CoS2 nanoparticles play a crucial part in increasing the active sites of metal ions on the surface of MXene. In three‐electrode system, the obtained MXene/CoS2 composite delivers high performance. Its specific capacitance can be up to 1320 F g−1 at a current density of 1 A g−1 and it shows remarkable cycle performance with 78.4% after 3000 cycles at 10 A g−1. Moreover, the asymmetric supercapacitors (ASCs) with reduced graphene oxide as the negative electrode and MXene/CoS2 composite as the positive electrode exhibit a wide potential window of 1.6 V and high energy density (28.8 Wh kg−1) at a power density of 800 W kg−1. After 5000 cycles, the ASCs maintain 98% of initial specific capacitance at 5 A g−1. These results can effectively promote the application in the supercapacitor materials.

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Electrochemical performance of two-dimensional Ti3C2-Mn3O4 nanocomposites and carbonized iron cations for hybrid supercapacitor electrodes

Cited by 57 publications

References 75 publications

Designing of Carbon Nitride Supported ZnCo2O4 Hybrid Electrode for High-Performance Energy Storage Applications

Designing of Carbon Nitride Supported ZnCo2O4 Hybrid Electrode for High-Performance Energy Storage Applications

Enhanced Electrochemical Performance of Co₂NiO₄/Ti₃C₂T_x Structures through Coupled Synergistic Effects

One‐Step Synthesis of Nanostructured CoS₂ Grown on Titanium Carbide MXene for High‐Performance Asymmetrical Supercapacitors

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Electrochemical performance of two-dimensional Ti3C2-Mn3O4 nanocomposites and carbonized iron cations for hybrid supercapacitor electrodes

Cited by 57 publications

References 75 publications

Designing of Carbon Nitride Supported ZnCo2O4 Hybrid Electrode for High-Performance Energy Storage Applications

Designing of Carbon Nitride Supported ZnCo2O4 Hybrid Electrode for High-Performance Energy Storage Applications

Enhanced Electrochemical Performance of Co2NiO4/Ti3C2Tx Structures through Coupled Synergistic Effects

One‐Step Synthesis of Nanostructured CoS2 Grown on Titanium Carbide MXene for High‐Performance Asymmetrical Supercapacitors

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Enhanced Electrochemical Performance of Co₂NiO₄/Ti₃C₂T_x Structures through Coupled Synergistic Effects

One‐Step Synthesis of Nanostructured CoS₂ Grown on Titanium Carbide MXene for High‐Performance Asymmetrical Supercapacitors