Single step fabrication of nanostructured Cr2O3-MoO2 composite flexible electrode for top-notch asymmetric supercapacitor

Sharma, Meenakshi; Adalati, Ravikant; Kumar, Ashwani; Chawla, Vikas; Chandra, Ramesh

doi:10.1016/j.apsusc.2021.149721

Cited by 30 publications

(15 citation statements)

References 92 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The imminent electronic microchip technology with its own energy storage systems is foreseen to be flexible, transportable, and transparent . Recently, the development of transparent devices has drawn extensive attention in the newly developing smart optoelectronics technology, which apparently brings technological innovation to daily life, including transparent displays, touch screens, and solar cells. , In this milieu, optical transparency and mechanical robustness are the key properties required to develop next-generation multifunctional devices, such as batteries, solar cells, supercapacitors, and displays. − Because of the perpetual increase in the demand for energy storage devices in handy electronics, steadfast research in the field of supercapacitor technology is required. Compared with batteries, supercapacitors have much higher power density, long cycling life, good capacitive performance, fast charging and discharging with outstanding reversibility, and low price, which make them potential candidates for use in broad applications such as in industrial power plants, built-in energy harvesting and storage systems, intermittent sensors, and portable electronics. − In general, transparent supercapacitors can be used as both the current collector for electron transportation and active electrode materials for energy storage.…”

Section: Introductionmentioning

confidence: 99%

Composite Assembling of Oxide-Based Optically Transparent Electrodes for High-Performance Asymmetric Supercapacitors

Sharma

Adalati

Kumar

et al. 2022

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Simultaneously achieving a transparent and high-energy density supercapacitor is a major challenge because of the trade-off between energy storage capacity and optical transparency of active electrode materials. Herein, we demonstrate a novel approach to construct an optically transparent asymmetric supercapacitor (Trans-ASC) by assembling positive (ZnO−SnO 2 ) and negative (TiO 2 −SnO 2 ) composite thin-film electrodes on a conductive indium-doped tin oxide substrate via reactive DC magnetron cosputtering. The optical transmittance for both composite thin films is found to be 68% (ZnO−SnO 2 ) and 64% (TiO 2 −SnO 2 ). Furthermore, electrochemical kinematics of the primed transparent electrodes are scrutinized in 0.5 M KOH electrolyte without affecting the transparency of active electrodes. The structural reliability of the electrodes aids the superb electrochemical performance to construct a Trans-ASC, TiO 2 −SnO 2 //ZnO−SnO 2 , which works at a voltage of +1.2 V and attains a higher areal capacitance of 44.6 mF cm −2 at 2 mA cm −2 . The assembled Trans-ASC delivers a maximum areal energy density of 8.75 μW h cm −2 with an optimal areal power density of 570 μW cm −2 . Additionally, the capacitance retention of 81.6% and transparency of both electrodes remain almost the same (up to 60% for ZnO−SnO 2 and 62% for TiO 2 −SnO 2 ) even after 10,000 charging−discharging cycles. These remarkable electrochemical properties and outstanding cycling stability of the designed Trans-ASC device make it a potential candidate for storing energy and for further use in transparent electronic devices.

show abstract

Section: Introductionmentioning

confidence: 99%

Composite Assembling of Oxide-Based Optically Transparent Electrodes for High-Performance Asymmetric Supercapacitors

Sharma

Adalati

Kumar

et al. 2022

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

show abstract

“…Maintaining good cycling stability is important for the practical application of supercapacitors ( Sharma et al, 2021 ). Therefore, the cycle retention was determined by performing a GCD test at a current density of 2 A/g for 5,000 cycles.…”

Section: Resultsmentioning

confidence: 99%

In situ preparation of molybdenum-dioxide-incorporated carbonized silk fiber and its application in supercapacitors

Zhang

Zhu

et al. 2022

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

A previous study found that the capacitive behavior of nanoparticles fed to the silkworm can be delivered to carbonized silk fibers, which can be used to fabricate electrodes for the construction of flexible supercapacitors. However, the tendency of nanoparticles to aggregate decreases the quantity of nanoparticles that enter the silk and therefore reduces the capacitance performance of the prepared carbonized silk. Here, we sprayed ammonium molybdate tetrahydrate (AMT) on the surface of mulberry leaves used for feeding silkworms and investigated the effect of feeding AMT on the growth of silkworms and the properties of spun silk. The precursor incorporated into the silk was converted into scattered MoO2 NPs, which were embedded within the carbonized silk fiber (CSF) via carbothermal reduction. The specific capacitance of CSF obtained from silkworms fed with an aqueous solution of AMT-treated mulberry leaves reached up to 298 F/g at 0.2 g/A, which is much higher than that of the control group (102 F/g). Since AMT is highly water-soluble, and its concentration can be easily modulated, we believe that the proposed strategy is feasible for the large-scale fabrication of CSF with enhanced capacitive performance.

show abstract

“…The great advantage in both research was the binder less adhesion of the active species onto the conducting substrate. 305 Another enhanced, composite electrode was designed by Dawoud et al in which with RF magnetron sputtering, a thin film of MnO 2 was deposited on CVD synthesized CNT substrate. The electrode exhibits strong capacitive behavior due to extrinsic characteristics of MnO 2 viable for a negative or anodic electrode in asymmetric supercapacitors.…”

Section: Direct Current Sputteringmentioning

confidence: 99%

A review on the advances in electrochemical capacitive charge storage in transition metal oxide electrodes for pseudocapacitors

Khot

Kiani

2022

Intl J of Energy Research

View full text Add to dashboard Cite

Summary With the remarkable growth in renewable energy and zero‐commission commitments, the requirement for energy storage has driven the research by a storm. The supercapacitor is one of the energy storage technologies that have seen significant contributions in recent applications. With the aim of increasing the specific capacitance and the energy density, extensive research is carried out to improve the electrode characteristics. Although recent work has shown great progress in improving the performance of these electrodes, the practicality and scalability of the presented synthesis or fabrication methods seem near impossible. Electric double‐layer capacitors are already commercialized and have had great success, pseudocapacitors on the other hand are yet to make it into the industry due to various manufacturing challenges and tremendous complexity involved. In this comprehensive review, a summary of various nanosynthesis methods with their advantages and drawbacks is presented. It proceeds by briefly highlighting various supercapacitors followed by emphasizing the characteristics of electrodes as well as a few objectives that need to be considered during the fabrication. Also reviewed in this paper is much research that demonstrates remarkable performance but also brings to highlight the drawbacks during electrode preparation. In addition, a significant emphasis is placed on green synthesis, an economical approach for the development of the supercapacitor electrode.

show abstract

Single step fabrication of nanostructured Cr2O3-MoO2 composite flexible electrode for top-notch asymmetric supercapacitor

Cited by 30 publications

References 92 publications

Composite Assembling of Oxide-Based Optically Transparent Electrodes for High-Performance Asymmetric Supercapacitors

Composite Assembling of Oxide-Based Optically Transparent Electrodes for High-Performance Asymmetric Supercapacitors

In situ preparation of molybdenum-dioxide-incorporated carbonized silk fiber and its application in supercapacitors

A review on the advances in electrochemical capacitive charge storage in transition metal oxide electrodes for pseudocapacitors

Contact Info

Product

Resources

About