3D structures of graphene oxide and graphene analogue MoS2 with polypyrrole for supercapacitor electrodes

Prasankumar, Thibeorchews; Vigneshwaran, J.; Abraham, Sibi

doi:10.1016/j.matlet.2018.12.002

Cited by 26 publications

(3 citation statements)

References 14 publications

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“…The nearly symmetrical and linear GCD curves suggest good capacitive behaviors of the CC/PPy NTs-T electrode. The discharge time at 1 mA cm −2 can last 168.3 s, along with corresponding areal and gravimetric capacitances can reach 210.4 mF cm −2 and 469.6 F g −1 , respectively, which are better than most of conductivity composite polymers [27,[31][32][33][34][35], as shown in table 1. Especially our gravimetric capacitance is quite large, and the mass loading is 0.45 mg cm −2 .…”

Section: Electrochemical Performances Of Cc/ppy Nts-composite Electrodesmentioning

confidence: 95%

Thermally doped polypyrrole nanotubes with sulfuric acid for flexible all-solid-state supercapacitors

Yang

Chen

2019

Nanotechnology

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We have synthesized a binder-free electrode on the basis of thermal acid doped polypyrrole nanotubes on carbon cloth (CC/PPy NTs-T), which can be used for flexible all-solid-state supercapacitors (FSSCs). PPy NTs on the CC substrate (CC/PPy NTs) with an interconnected network structure were prepared by a facile self-degradation template method. Then a unique acid doping process at high temperature was developed and used to fabricate the CC/PPy NTs-T composite electrodes, showing the better electrochemical performances than the CC/PPy NTs (without doping) and CC/PPy NTs-R (doping at room temperature) composite electrodes. The CC/PPy NTs-T FSSCs were assembled based on the prepared CC/PPy NTs-T composite electrodes, which showed good flexibility and excellent electrochemical performances with a high areal specific capacitance of 73.3 mF cm −2 at the current density of 1 mA cm −2 , the highest energy density of 0.081 mW h cm −3 , the highest power density of 25 mW cm −3 , and the capacitance retention of 85.3% after 5000 cycles. The outstanding electrochemical performances can be attributed to the unique interconnected network structure of the composite electrodes and the thermal acid doping of PPy NTs, which proposes a new and feasible general pathway of flexible electrode configuration for energy storage devices.

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Section: Electrochemical Performances Of Cc/ppy Nts-composite Electrodesmentioning

confidence: 95%

Thermally doped polypyrrole nanotubes with sulfuric acid for flexible all-solid-state supercapacitors

Yang

Chen

2019

Nanotechnology

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“…Reduced graphene oxide in polypyrrole mate presented high capacitance, while molybdenum disulfide upgraded the structural stability and a noticeable (2000 cycles; cycling stability). MoS 2 /polypyrrole retains 82%, and graphene oxide/polypyrrole retains 64% of their initial capacitance (Prasankumar et al 2019).…”

Section: )mentioning

confidence: 99%

MoS2-based nanocomposites: synthesis, structure, and applications in water remediation and energy storage: a review

et al. 2021

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The world is currently facing critical water and energy issues due to the growing population and industrialization, calling for methods to obtain potable water, e.g., by photocatalysis, and to convert solar energy into fuels such as chemical or electrical energy, then storing this energy. Energy storage has been recently improved by using electrochemical capacitors and ion batteries. Research is actually focusing on the synthesis of materials and hybrids displaying improved electronic, physiochemical, electrical, and optical properties. Here, we review molybdenum disulfide (MoS2) materials and hybrids with focus on synthesis, electronic structure and properties, calculations of state, bandgap and charge density profiles, and applications in energy storage and water remediation.

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“…In recent years, the widespread attention of the global community has been drawn to supercapacitors due to their notable advantages, including rapid charging and discharging rates, high energy density, efficient Coulombic efficiency, extended cycle life, wide operating temperature range, and excellent safety performance [1][2][3]. The capacitance, energy density, and power density of supercapacitors are directly related to the selection of electrode materials.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Zn-BTC with Different Morphologies of simple synthetic graphene loading and Their Supercapacitor Performance

tan,

yao,

Liu

et al. 2023

Preprint

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The remarkable advantages of supercapacitors, such as high power density, fast charge-discharge rate, and long cycle life, have attracted considerable attention. Metal-organic framework materials (MOFs) have been widely utilized in the field of energy conversion and storage due to their enormous specific surface area and tunable pore structures. However, the poor conductivity of MOFs hinders their satisfactory electrochemical performance when used as electrode materials for supercapacitors. To address this issue, a graphene-supported Zn-BTC metal-organic framework material with different morphologies was successfully synthesized using a simple ultrasonic oscillation method and a one-step solvothermal method. The synthesized one-dimensional rod-shaped Zn-BTC material was uniformly anchored on the wrinkled graphene nanosheet layer, exhibiting excellent capacitance performance with a specific capacitance of 201.3 C g-1 (at 1 A g-1), surpassing that of graphene-supported two-dimensional sheet-like Zn-BTC (152.6 C g-1), graphene-supported three-dimensional spherical Zn-BTC (139.6 C g-1), graphene (108.2 C g-1), and one-dimensional rod-shaped Zn-BTC (63.5 C g-1). By assembling symmetric supercapacitors using graphene-supported one-dimensional rod-shaped Zn-BTC, a maximum energy density of 4.55 Wh kg-1 was achieved at a power density of 104.17 W kg-1, with a specific capacitance retention of 93.26% after 2000 charge-discharge cycles at a current density of 1 A g-1.

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3D structures of graphene oxide and graphene analogue MoS2 with polypyrrole for supercapacitor electrodes

Cited by 26 publications

References 14 publications

Thermally doped polypyrrole nanotubes with sulfuric acid for flexible all-solid-state supercapacitors

Thermally doped polypyrrole nanotubes with sulfuric acid for flexible all-solid-state supercapacitors

MoS2-based nanocomposites: synthesis, structure, and applications in water remediation and energy storage: a review

Preparation of Zn-BTC with Different Morphologies of simple synthetic graphene loading and Their Supercapacitor Performance

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