New insight into the effect of oxygen vacancies on electrochemical performance of nickel-tin oxide/reduced graphene oxide composite for asymmetric supercapacitor

Paul, Aparna; Ghosh, Souvik; Kolya, Haradhan; Kang, Chun-Won; Murmu, Naresh Chandra; Kuila, Tapas

doi:10.1016/j.est.2023.106922

Cited by 15 publications

(1 citation statement)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[7][8][9] In recent times, a multitude of studies have focused on amalgamating pseudocapacitive materials with double-layer materials to fabricate composite electrodes, thereby realizing highperformance energy storage solutions. For instance, research endeavors involving the combination of graphene with metal oxides, [10][11][12] metal sulfides, [13,14] polymeric materials, [15,16] and more, to form composite electrode materials, have been continuously reported. Graphene, as an exceptional two-dimensional material, not only embodies the aforementioned advantages but also presents the potential for fabricating flexible energy storage devices due to its exceptional mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Laser‐Induced Electron Synchronization Excitation for Photochemical Synthesis and Patterning Graphene‐Based Electrode

Yuan,

Huang,

et al. 2023

Advanced Materials

View full text Add to dashboard Cite

Micro‐supercapacitors (MSCs) represent a pressing requirement for powering the forthcoming generation of micro‐electronic devices. The simultaneous realization of high‐efficiency synthesis of electrode materials and precision patterning for MSCs in a single step presents an ardent need, yet it poses a formidable challenge. Herein, a unique shaped laser‐induced patterned electron synchronization excitation strategy has been put forward to photochemical synthesis RuO2/rGO electrode and simultaneously manufacture the micron‐scale high‐performance MSCs with ultra‐high resolution. Significantly, our technique represents a noteworthy advancement over traditional laser direct writing (LDW) patterning and photoinduced synthetic electrode methods. It not only improves the processing efficiency for MSCs and the controllability of laser‐induced electrode material but also enhances electric fields and potentials at the interface for better electrochemical performance. The resultant MSCs exhibited excellent area and volumetric capacitance (516 mF cm−2 and 1720 F cm−3), and ultrahigh energy density (0.41 Wh cm−3) and well‐cycle stability (retaining 95% capacitance after 12000 cycles). This investigation establishes a novel avenue for electrode design and underscores substantial potential in the fabrication of diverse microelectronic devices.This article is protected by copyright. All rights reserved

show abstract

Section: Introductionmentioning

confidence: 99%

Laser‐Induced Electron Synchronization Excitation for Photochemical Synthesis and Patterning Graphene‐Based Electrode

Yuan,

Huang,

et al. 2023

Advanced Materials

View full text Add to dashboard Cite

show abstract

Self‐Powered Supercapacitor with Bifunctional Separator in Suppressing Self‐Discharge

Paul,

Chakraborty,

Samanta

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

Integrating energy harvesters with energy storage devices helps enhance energy utilization efficiency. The requirement for external power sources in energy storage devices can also be addressed by the development of an all‐in‐one single system. Vegetable peels can be used as piezoelectric energy harvesters due to the generation of electric dipole within cellulose. The self‐discharge processes cause open circuit potential decay, resulting in a loss of energy stored within the cell. The self‐discharge rate can be controlled by using a piezoelectric separator. This work used garlic skins as a piezoelectric separator, which helped delay the self‐discharge rate. The supercapacitor using Ni−Mn oxide as positive and Fe−Ni sulfide/RGO as negative electrode materials was fabricated with garlic skin as a separator. The device was charged from an initial OCP of ~0.15–~0.37 V in ~ 4 sec by finger tapping. The OCP decay rate was reduced by~88 % compared to that of using the Whatmann separator. The fabricated Ni−Mn oxide RGO/garlic skin/FeS2 RGO exhibited ~72.2 W h kg−1 energy density at a power density of ~2 kW kg−1 in an operated potential window of ~2 V. This research provides a cost‐effective method for developing piezoelectric supercapacitor with low self‐discharge rate.

show abstract

Electrocatalytic degradation of naphthenic acids using reduced graphene oxide modified nickel foam cathode: Role of surface structure and superoxide radical

Li,

Zhao,

Zhang

et al. 2024

Chemical Engineering Journal

View full text Add to dashboard Cite

New insight into the effect of oxygen vacancies on electrochemical performance of nickel-tin oxide/reduced graphene oxide composite for asymmetric supercapacitor

Cited by 15 publications

References 69 publications

Laser‐Induced Electron Synchronization Excitation for Photochemical Synthesis and Patterning Graphene‐Based Electrode

Laser‐Induced Electron Synchronization Excitation for Photochemical Synthesis and Patterning Graphene‐Based Electrode

Self‐Powered Supercapacitor with Bifunctional Separator in Suppressing Self‐Discharge

Electrocatalytic degradation of naphthenic acids using reduced graphene oxide modified nickel foam cathode: Role of surface structure and superoxide radical

Contact Info

Product

Resources

About