Studies on fabrication of high-performance flexible printed supercapacitor using cobalt hydroxide nanowires

Navaneeth, Punnakkal; V, Vrinda K.; P, Arun Kumar; S, Arun Raj; Nair, Bipin G.; Babu, TG Satheesh; Suneesh, P.V.

doi:10.1016/j.electacta.2022.141096

Cited by 22 publications

(3 citation statements)

References 30 publications

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“…The super hydrophilic nature can favor water infiltration to generate a streaming potential, and a higher zeta potential value indicates a higher surface charge, resulting in electric double layer (EDL) formation by counterions . By considering these facts, carbon nanomaterials, , biomass-based materials, composite materials, metal oxides and hydroxides, − etc. are generally used in energy production.…”

Section: Introductionmentioning

confidence: 99%

Streaming-Induced Hydrovoltaic Power Generation by Fluorinated Mg–Al Hydrotalcite Nanoclay

Manikandan,

Batabyal

2024

ACS Sustainable Chem. Eng.

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The rapid growth of hydrovoltaic technologies by scavenging renewable energy sources for power generation provides a promising approach for self-powered devices. In the recent literature, layered double hydroxides have not been explored much, even though they can be a potential candidate for both energy storage and harvesting applications. Herein, we report the fabrication of 2D and 3D hydrovoltaic devices using bare and fluorine-incorporated Mg−Al hydrotalcite nanosized clay. Upon incorporation of fluorine in Mg−Al hydrotalcite, the induced surface charge within the hydrotalcite layer increases, resulting in an enhancement in hydrovoltaic power generation. In this work, we showcase 2D devices that can generate a continuous open circuit potential of 401 mV and a short circuit current of 4.22 μA and a 3D device that can generate a continuous open circuit potential of 603 mV and a short circuit current of 14 μA under ambient conditions. Replacing 2D lateral devices with 3D pellet mode devices could enhance the power output. Another noteworthy aspect of this work is the lower-dimensional area of 3D pellet devices. We fabricated a prototype in which water is dropped from the top side of the device, which is quite different from conventional hydrovoltaic devices. A single droplet can attain a higher output and successfully power up low-power electronic devices.

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Section: Introductionmentioning

confidence: 99%

Streaming-Induced Hydrovoltaic Power Generation by Fluorinated Mg–Al Hydrotalcite Nanoclay

Manikandan,

Batabyal

2024

ACS Sustainable Chem. Eng.

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“…This is evident by the exponential increase in recently published research articles. [1][2][3][4][5][6][7][8] To resolve society's signicant issues, ILs as potential candidates are emerging as an efficient, clean, and eco-friendly alternative resource of volatile organic solvents on account of their distinctive physical, chemical, thermal, and chemical-biological properties. 4 Following their characteristic negligible vapor pressure, they have additional attractive features, like a highly ionized environment, a more comprehensive liquidus range, good thermal/electrochemical stability, and their affinity/ solubility towards a vast range of synthetic and natural solvents.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and study of electrochemical applicability of novel asymmetrically substituted 1,3-dialkyl-1,2,3-benzotriazolium salts for supercapacitor fabrication

et al. 2023

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“…Electric‐double layer capacitors (EDLC) have been developed using carbonaceous materials due to their high surface area, high potential window, high chemical stability, and low cost. [ 1 ] Activated carbon derived from bio‐waste or bio‐char materials is the best choice for both positive and negative electrode materials. Activated carbon is highly preferred in both aqueous and organic electrolytes due to their aforementioned exceptional properties.…”

Section: Introductionmentioning

confidence: 99%

Binder‐Free Electro‐Deposited MnO₂ @3D Carbon Felt Network: A Positive Electrode for 2V Aqueous Supercapacitor

et al. 2022

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Electrochemical supercapacitors have been considered the most promising energy storage system due to their attractive features, high power, energy density, and good cycle performance. This work investigates the capacitor performance of the tailor‐made electro‐deposited (ED) MnO2‐coated 3D‐carbon felt (CF) as a positive electrode. Manganese, a well‐known transition metal, has good electrochemical activity in various electrolyte conditions with broad operating potential and high specific capacity. The ED MnO2@CF delivers a maximum specific capacitance of and 231.5 Fg−1 at 10 mV s−1 in three electrode configurations. The asymmetric cell is developed using MnO2@CF as a positive electrode and the cell deliveres a maximum capacitance of 187.5 F g−1 at 0.2 A g−1 at a high‐voltage window of 2 V. The cycle life of the asymmetric capacitor is also tested up to 10 000 cycles, and the cell deliveres a round trip efficiency of 99%. To elucidate further the high‐voltage window (2 V) of the present work, an asymmetric cell configuration is fabricated using commercial MnO2 and the performance characteristics are also compared.

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Studies on fabrication of high-performance flexible printed supercapacitor using cobalt hydroxide nanowires

Cited by 22 publications

References 30 publications

Streaming-Induced Hydrovoltaic Power Generation by Fluorinated Mg–Al Hydrotalcite Nanoclay

Streaming-Induced Hydrovoltaic Power Generation by Fluorinated Mg–Al Hydrotalcite Nanoclay

Synthesis, characterization and study of electrochemical applicability of novel asymmetrically substituted 1,3-dialkyl-1,2,3-benzotriazolium salts for supercapacitor fabrication

Binder‐Free Electro‐Deposited MnO₂ @3D Carbon Felt Network: A Positive Electrode for 2V Aqueous Supercapacitor

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Studies on fabrication of high-performance flexible printed supercapacitor using cobalt hydroxide nanowires

Cited by 22 publications

References 30 publications

Streaming-Induced Hydrovoltaic Power Generation by Fluorinated Mg–Al Hydrotalcite Nanoclay

Streaming-Induced Hydrovoltaic Power Generation by Fluorinated Mg–Al Hydrotalcite Nanoclay

Synthesis, characterization and study of electrochemical applicability of novel asymmetrically substituted 1,3-dialkyl-1,2,3-benzotriazolium salts for supercapacitor fabrication

Binder‐Free Electro‐Deposited MnO2 @3D Carbon Felt Network: A Positive Electrode for 2V Aqueous Supercapacitor

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Product

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About

Binder‐Free Electro‐Deposited MnO₂ @3D Carbon Felt Network: A Positive Electrode for 2V Aqueous Supercapacitor