High energy density of flexible graphene supercapacitors with discharge times controlled by silica microparticles

Mtz-Enríquez, A.I.; Oliva, A.I.; Gómez-Solís, C.; Martinez-Ligas, J.; Velázquez-Manzanares, Miguel; Oliva, J.

doi:10.1016/j.synthmet.2020.116327

Cited by 7 publications

(2 citation statements)

References 52 publications

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“…CV profiles of rGO/MTS001 (figure 5(b)) show the appearance of more distinguished Faradaic redox reactions, revealing the more significant influence of pseudocapacitive characteristics on the capacitance. To be specific, the redox reaction was due to the new interaction of C from rGO and the metal (Ti or Mg) from MTS001 [70]. Moreover, the kinetic reversibility of rGO/MTS001 was retained even at high scan rates.…”

Section: Characterization Of Rgo/mts001 Nanocompositementioning

confidence: 99%

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Hermadianti,

Handayani,

Anggoro

et al. 2024

Nanotechnology

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In this study, ceramic materials of Mg(Ti0.99Sn0.01)O3 were synthesized and decorated on reduced graphene oxide, forming a nanocomposite of rGO/Mg(Ti0.99Sn0.01)O3 (rGO/MTS001). The successful synthesis results were confirmed by XRD, UV-Vis analysis, FT-IR, and SEM-EDS. The MTS001 has a flower-like morphology from SEM analysis, and the nanocomposites of rGO/MTS001 showed MTS001 particles decorated on rGO's surface. The electrochemical performance of rGO/MTS001 compared and MTS001 was investigated by determining the specific capacitance obtained in 1 M H2SO4 solution by cyclic voltammetry (CV), followed by galvanostatic charge-discharge (GCD) analysis using a three-electrode setup. The rGO/MTS001 achieved a specific capacitance of 361.97 F g‒1, compared to MTS001 (194.90 F g‒1). The capacitance retention of rGO/MTS001 nanocomposite also depicted excellent cyclic stability of 95.72% after 5000 cycles at a current density of 0.1 A g‒1. The result showed that the nanocomposite of ceramics with graphene materials has a potential for high-performance supercapacitor electrodes.

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Section: Characterization Of Rgo/mts001 Nanocompositementioning

confidence: 99%

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Hermadianti,

Handayani,

Anggoro

et al. 2024

Nanotechnology

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“…An electric double layer (EDL) is a natural phenomenon generally existing at the interface between a conductive electrode and its adjacent liquid electrolyte. It plays an important role in various electrochemical and bioelectrical devices, such as supercapacitors, − fuel cells, EDL field-effect transistors, − electroporation devices, , (di)electrophoretic devices, etc . Recently, researchers reported that EDL could also be used in metallic ion separation and sorting of ssDNA, which further enriched its application fields.…”

Section: Introductionmentioning

confidence: 99%

Measurement of Electric Double Layer Capacitance Using Dielectrophoresis-Based Particle Manipulation

Zhang

Chen

et al. 2021

Anal. Chem.

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An electric double layer (EDL) generally exists at the interface between a conductive electrode and its adjacent liquid electrolyte. Accurate measurement of the capacitance of EDL is requisite but a great challenge due to the complexity of its variation mechanism correlated with the magnitude and frequency of applied signals and the difficulty in measuring the inner layer potentials across the EDL. Herein, a novel dielectrophoresis (DEP)-based approach is proposed to measure the capacitance of an EDL at a microelectrode/electrolyte interface. The measurement is achieved by employing DEP manipulation to micro polystyrene (PS) spheres suspended in a liquid electrolyte and determining the capacitance of EDL on the microelectrodes from the moving velocities of spheres. This method allows measurement of the capacitances of EDL under alternating current (AC) signals with different magnitudes and frequencies, so that the capacitance change with the magnitude and frequency of the applied signal can be characterized. The method avoids the impedance interference from the liquid electrolyte, external measuring systems, and other crosstalks, enabling an accurate measurement of double layer capacitance. In addition, the inner layer potentials across EDL under different magnitudes and frequencies of applied signals are comprehensively investigated, which facilitates an understanding of the ion behavior at the interfacial boundary that governs external observations of electrochemical reactions. The accurate measurement of the capacitance of EDL is of significance to explore the mechanism of interfacial functioning of electrochemical and bioelectrical devices and systems.

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Fabrication of rationally designed CNTs supported binary nanohybrid with multiple approaches to boost electrochemical performance

Aadil

Zulfiqar

Shahid

et al. 2021

Journal of Electroanalytical Chemistry

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High energy density of flexible graphene supercapacitors with discharge times controlled by silica microparticles

Cited by 7 publications

References 52 publications

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Measurement of Electric Double Layer Capacitance Using Dielectrophoresis-Based Particle Manipulation

Fabrication of rationally designed CNTs supported binary nanohybrid with multiple approaches to boost electrochemical performance

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High energy density of flexible graphene supercapacitors with discharge times controlled by silica microparticles

Cited by 7 publications

References 52 publications

Flower like-novel nanocomposite of Mg(Ti0.99Sn0.01)O3 decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Flower like-novel nanocomposite of Mg(Ti0.99Sn0.01)O3 decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Measurement of Electric Double Layer Capacitance Using Dielectrophoresis-Based Particle Manipulation

Fabrication of rationally designed CNTs supported binary nanohybrid with multiple approaches to boost electrochemical performance

Contact Info

Product

Resources

About

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes