Supercapacitors aging assessment in wind/tidal intermittent energies application with variable temperature

Sarr, Cheikh Tidiane; Camara, Mamadou Baïlo; Dakyo, Brayima

doi:10.1016/j.est.2021.103790

Cited by 15 publications

(10 citation statements)

References 25 publications

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“…Supercapacitors have been widely studied in the field of energy storage because of their increased power density and cycle stability. − On account of excellent conductivity and special retractable structures, CNTs are widely used in various capacitors. , Samples were prepared into electrodes, and their supercapacitor properties were tested in 3 M KOH solution. Figure a exhibits CV curves of samples at a scan rate of 100 mV/s.…”

Section: Resultsmentioning

confidence: 99%

Dimensional Nanoarchitectonics of g-C₃N₄/Co Nanocomposites for Photo- and Electro-Chemical Applications

Zhang

et al. 2022

ACS Appl. Nano Mater.

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Cobalt ions were introduced during thermal polymerization at high temperature to prepare graphic carbon nitride (g-C3N4) and Co composites. The interface engineering induced by Co ions resulted in the variation of morphology as well as photo- and electro-chemical performance of the composite samples. Co-g-C3N4 composite samples revealed superior thin-nanosheet and nanotube morphologies at 680 and 750 °C, respectively. As separation centers, Co–N bonds at the interface promoted the transfer of charges and improved photocatalytic properties. Thus, the Co-g-C3N4 composite nanosheets revealed the best photocatalytic performance, in which the maximum degradation rate constant of rhodamine B reached to 0.126 min–1, which was 9.7 times of that of pure g-C3N4 nanosheets. In contrast, the Co-g-C3N4 composite nanotubes with Co nanoparticles effectively enhanced the hydrogen evolution reaction. In the case of a current density of 10 mA cm–2, the overpotential of the Co-g-C3N4 composite nanotubes was 249 mV and the Tafel slope was 80 mV dec–1. In addition, the Co-g-C3N4 composite nanotubes revealed high charge–discharge capacity as a supercapacitor. This result provided a method for building g-C3N4-based photo- and electro-catalysts for various photo- and electro-chemical applications including photocatalytic degradation of organic pollutants, electrocatalytic hydrogen evolution reaction, and supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Dimensional Nanoarchitectonics of g-C₃N₄/Co Nanocomposites for Photo- and Electro-Chemical Applications

Zhang

et al. 2022

ACS Appl. Nano Mater.

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“…The supercapacitors (SCs) model has been obtained from the data collected in the previous work done in our laboratory [20]. Equation (1) shows the model of normalized resistance K Ncy and capacitance Q N cy which is obtained from the experimental data, where N cy is the number for charge/discharge cycles and α, β, λ and µ are the fitting coefficients.…”

Section: Supercapacitors Behavior Model Based Experimental Datamentioning

confidence: 99%

“…The resistance decreases and the capacitance increases when the temperatures are low [22,23]. On the other hand the resistance increases, and capacitance decreases when the temperatures reach high levels [19,20,24,25]. This phenomenon takes place because high temperatures cause side reactions at the electrode/electrolyte interface of the SCs between the electrolyte ions and the functional groups.…”

Section: Supercapacitors Behavior Model Based Experimental Datamentioning

confidence: 99%

Supercapacitors Fast Ageing Control in Residential Microgrid Based Photovoltaic/Fuel Cell/Electric Vehicle Charging Station

2023

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The demand for microgrids and their applications in buildings, industries and for very specific applications is increasing over time. Most of these microgrids are dependent on renewable energy sources, which brings along problems of intermittent energy production. To maintain the balance of the grid, normally storage devices are used. Supercapacitors (SCs) are emerging as one of the potential solutions to solve the issue of intermittent energy production by renewable sources because of their high-power densities and rapid charge/discharge capability. In other terms, SCs can charge, and discharge rather quickly as compared to traditional lithium-batteries. This usage makes it interesting for optimizing decentralized energy generation-based PV systems operations. In this paper, the authors propose the supercapacitors fast ageing control in residential microgrid, including electric vehicle charging station based Photovoltaic-Fuel Cell system. Supercapacitors fast ageing control concept focuses on keeping the electrical parameters of the SCs around the optimal operation points by smoothing the power fluctuations in the system. The used SCs model is essentially based on the intermittent current waveforms along with variable temperature conditions. It enables us to describe the degradation of the supercapacitor’s parameters based on the effects of the temperature and the DC-current undulation. To maintain the electrical parameters of SCs around the optimal operation points, the authors propose a new control based on maintaining the SCs resistance at a minimal level and its capacitance at a maximal level by adjusting the SCs current control according to the optimal operating points tracking. The results validate the effectiveness of the approach, this is important because controlling the fast degradation of capacitance optimizes the lifetime of SCs system. Future research may explore scalability to large microgrids and integration with diverse renewable energy systems.

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“…Green renewable energy, mainly including solar energy, 3 tidal energy, 4 wind energy, 5,6 hydrogen energy, 7,8 etc., has the advantages of being sustainable, renewable 9 and easy to obtain. It has shown broad prospects in replacing one-time energy and has been developed rapidly.…”

Section: Introductionmentioning

confidence: 99%

“…2 Therefore, scientists have devoted themselves to the field of new energy, which is also a research hotspot today. Green renewable energy, mainly including solar energy, 3 tidal energy, 4 wind energy, 5,6 hydrogen energy, 7,8 etc. , has the advantages of being sustainable, renewable 9 and easy to obtain.…”

Section: Introductionmentioning

confidence: 99%

Progress of layered double hydroxide-based materials for supercapacitors

Ren

Sridhar³

et al. 2023

Mater. Chem. Front.

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Supercapacitors aging assessment in wind/tidal intermittent energies application with variable temperature

Cited by 15 publications

References 25 publications

Dimensional Nanoarchitectonics of g-C₃N₄/Co Nanocomposites for Photo- and Electro-Chemical Applications

Dimensional Nanoarchitectonics of g-C₃N₄/Co Nanocomposites for Photo- and Electro-Chemical Applications

Supercapacitors Fast Ageing Control in Residential Microgrid Based Photovoltaic/Fuel Cell/Electric Vehicle Charging Station

Progress of layered double hydroxide-based materials for supercapacitors

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Supercapacitors aging assessment in wind/tidal intermittent energies application with variable temperature

Cited by 15 publications

References 25 publications

Dimensional Nanoarchitectonics of g-C3N4/Co Nanocomposites for Photo- and Electro-Chemical Applications

Dimensional Nanoarchitectonics of g-C3N4/Co Nanocomposites for Photo- and Electro-Chemical Applications

Supercapacitors Fast Ageing Control in Residential Microgrid Based Photovoltaic/Fuel Cell/Electric Vehicle Charging Station

Progress of layered double hydroxide-based materials for supercapacitors

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Product

Resources

About

Dimensional Nanoarchitectonics of g-C₃N₄/Co Nanocomposites for Photo- and Electro-Chemical Applications

Dimensional Nanoarchitectonics of g-C₃N₄/Co Nanocomposites for Photo- and Electro-Chemical Applications