Themed collection Supercapacitors for a sustainable energy future

21 items
Paper

Bimetallic (Co/Ni, Ce) MOF decorated V2CTx MXene/CNT for high energy flexible zinc-ion capacitor

This study reports the design and fabrication of a flexible all-solid-state zinc-ion capacitor based on a-ternary composite, comprising V2CTx MXene, functionalized carbon nanotubes, and cobalt/nickel–cerium bimetallic metal–organic frameworks.

Graphical abstract: Bimetallic (Co/Ni, Ce) MOF decorated V2CTx MXene/CNT for high energy flexible zinc-ion capacitor
Accepted Manuscript - Paper

A highly efficient electrode material based on waste plastic derived rGO decorated with polypyrrole and zinc oxide nanoparticles for supercapacitor applications

Paper

A simple and scalable fabrication of a high-performance flexible microsupercapacitor using hierarchical Ni–Mo–S nanostructures decorated on Ti3C2Tx MXene

The assembled device delivers a broader voltage window, efficient ion movement, strong current response, and stable cycling. Architecture boosts charge storage, ensuring high performance for practical use.

Graphical abstract: A simple and scalable fabrication of a high-performance flexible microsupercapacitor using hierarchical Ni–Mo–S nanostructures decorated on Ti3C2Tx MXene
Accepted Manuscript - Paper

Bioinspired Poly(acrylic acid)-regulated Crosslinked Self-healing, Quasi-solid Polymer Electrolytes for Flexible Supercapacitor Applications

Paper

Synergistic engineering of anthracene- and thiazolo[5,4-d] thiazole-based donor–acceptor conjugated microporous polymers with heteroatom adoption for enhanced energy storage capacity

The ANPh-TzTz CMP demonstrates excellent electrochemical properties, offering a high specific capacitance of 541 F g−1 with 94% retention after prolonged cycling. Its symmetric coin-cell device delivers 220 F g−1 capacitance.

Graphical abstract: Synergistic engineering of anthracene- and thiazolo[5,4-d] thiazole-based donor–acceptor conjugated microporous polymers with heteroatom adoption for enhanced energy storage capacity
Open Access Paper

Effect of nitrogen content on performance of supercapacitors composed of nitrogen–carbon materials

Nitrogen–carbon (N–C) materials are emerging as strong contenders to elemental carbon in advanced energy applications. The effect of N to C ratio on the supercapacitor electrode performance of the N–C materials is evaluated in this study.

Graphical abstract: Effect of nitrogen content on performance of supercapacitors composed of nitrogen–carbon materials
Paper

An anion-sorted Li-ion electrolyte and flexible MnVO@SWCNT hybrid electrode for an efficient supercapacitor system

Portable and wearable electronics create a wide application opportunity for flexible energy storage materials.

Graphical abstract: An anion-sorted Li-ion electrolyte and flexible MnVO@SWCNT hybrid electrode for an efficient supercapacitor system
Accepted Manuscript - Paper

Unraveling Supercapacitive Cobalt Manganese Sulfide Nanoflakes: A Standalone Binder-free Electrode Material for Solid State Prototype Device

Paper

Surface engineered sulvanite integrated with layered double hydroxide for asymmetric hybrid supercapacitor

Surface engineered sulvanites are integrated with Ce(III)––Mg(II)––Y(III) LDH for supercapacitor applications. The optimized material was used to SLASH device to assess the practical application for next generation energy storage devices.

Graphical abstract: Surface engineered sulvanite integrated with layered double hydroxide for asymmetric hybrid supercapacitor
Paper

Enhanced electrochemical performance of multilayer WO3/MnO2 thin films via sputtering on graphene substrate for high-stability supercapacitors

A flexible, binder-free multilayer WO3/MnO2 electrode on graphene delivers high-performance supercapacitor with 494 F g−1 specific capacitance and 89% retention after 10000 cycles, offering a scalable route to next-generation flexible energy storage.

Graphical abstract: Enhanced electrochemical performance of multilayer WO3/MnO2 thin films via sputtering on graphene substrate for high-stability supercapacitors
Paper

Fluorine-doped β-Ni(OH)2–Ti3C2 MXene composite: a bifunctional electrode

F-Ni(OH)2–Ti3C2 exhibits superior electrocatalytic activity and delivers an excellent specific capacity of ∼242 mAh g−1 at 1 A g−1 in an alkaline electrolyte. The hybrid capacitor delivered a high specific energy of 62 Wh kg−1 in gel electrolyte.

Graphical abstract: Fluorine-doped β-Ni(OH)2–Ti3C2 MXene composite: a bifunctional electrode
Paper

Electrochemical pretreatment of thienothiophene/single-walled carbon nanotubes: a flexible and binder-free electrode with enhanced energy performance as a positive electrode for asymmetric supercapacitors

The hybrid electrode based on thienothiophene (TT) and single-walled carbon nanotubes (SWCNTs) exhibits a superior specific capacitance of 355.3 F g−1 as a flexible hybrid asymmetric supercapacitor after electrochemical pretreatment.

Graphical abstract: Electrochemical pretreatment of thienothiophene/single-walled carbon nanotubes: a flexible and binder-free electrode with enhanced energy performance as a positive electrode for asymmetric supercapacitors
Paper

Activated carbon microtube electrodes with cement and fly ash for enhanced supercapacitor performance

Fabrication of solid-state supercapacitor NF/ACMT2/FA1/CE1 electrode for energy application.

Graphical abstract: Activated carbon microtube electrodes with cement and fly ash for enhanced supercapacitor performance
Paper

Metal-ion mediated mesopore engineering in hierarchical porous carbons for enhanced high-rate volumetric capacitance

We present a scalable mesopore-engineering strategy for alginate-derived HPCs via metal-ion crosslinking, generating ≈5 nm inherited mesopores that balance density and ion transport to enhance volumetric performance.

Graphical abstract: Metal-ion mediated mesopore engineering in hierarchical porous carbons for enhanced high-rate volumetric capacitance
Paper

Interface-engineered Co-Ni-S composite electrode for ultrahigh capacitance and water oxidation

Interface-engineered Co-Ni-S composite multifunctional electrode materials for next-generation energy storage and water splitting.

Graphical abstract: Interface-engineered Co-Ni-S composite electrode for ultrahigh capacitance and water oxidation
Open Access Paper

A sustainable and cost-effective industrial biomass-based coin cell supercapacitor for powering up electronic devices

Transforming industrial waste into an energy storage device addresses two key challenges: reducing industrial waste and providing a sustainable, low-cost material to meet global energy demands.

Graphical abstract: A sustainable and cost-effective industrial biomass-based coin cell supercapacitor for powering up electronic devices
Open Access Paper

Sustainable synthesis of α-alumina nanoparticles: a comparative study of base-mediated crystallization via co-precipitation

The choice of base controls the crystallite size, purity, and stability of α-Al2O3 NPs.

Graphical abstract: Sustainable synthesis of α-alumina nanoparticles: a comparative study of base-mediated crystallization via co-precipitation
Paper

Advanced symmetric supercapacitor of spinel NiCo2O4-incorporated 2D g-C3N4 electrodes in a PVA–KOH gel-electrolyte-based pouch cell

Synergistic nanocomposite of g-C3N4 and NiCo2O4 balances individual limitations, enhancing performance in a symmetric pouch cell.

Graphical abstract: Advanced symmetric supercapacitor of spinel NiCo2O4-incorporated 2D g-C3N4 electrodes in a PVA–KOH gel-electrolyte-based pouch cell
Paper

Upcycling of electric arc furnace dust into ZnO–Fe3O4 nanocomposites for high-performance supercapacitor applications

ZnO–Fe3O4 obtained from electric arc furnace dust revealed the following properties as an asymmetric supercapacitor; Cs = 35.2 mF cm−2, E = 25.03 μWh cm−2, P = 430.81 μW cm−2, and 81% capacitance retention after 7000 cycles.

Graphical abstract: Upcycling of electric arc furnace dust into ZnO–Fe3O4 nanocomposites for high-performance supercapacitor applications
Open Access Paper

Covalent grafting of redox-active sites onto MXenes with spinel ACo2O4 (A = Zn, Cu) integration for tailored interfacial charge storage in high-performance supercapacitors

Sulphonate-functionalised MXene anchored with spinel ACo2O4 nanostructures enables synergistic charge transfer, enhanced capacitance, and long-term stability, advancing MXene-based supercapacitors for efficient next-generation energy storage.

Graphical abstract: Covalent grafting of redox-active sites onto MXenes with spinel ACo2O4 (A = Zn, Cu) integration for tailored interfacial charge storage in high-performance supercapacitors
From the themed collection: Journal of Materials Chemistry A HOT Papers
Paper

High-density electrostatic energy storage in a multi-layer P(VDF-TrFE-CFE)/2D mica nanocomposite heterostructure capacitor

(a) Discharge energy density and efficiency of the PTC/2D Mica/PTC heterostructure capacitor shows an energy density as high as 50 J cm−3 at E = 700 MV m−1 and an efficiency of 80%. (b) Shows the discharge time of the capacitor is 6.68 μs.

Graphical abstract: High-density electrostatic energy storage in a multi-layer P(VDF-TrFE-CFE)/2D mica nanocomposite heterostructure capacitor
21 items

About this collection

This collection in Journal of Materials Chemistry A and Materials Advances is guest edited by Dr. Subrata Kundu (Central Electrochemical Research Institute, India), Prof. Chandra Sekhar Rout (Jain University, India) and Prof. Yusuke Yamauchi (The University of Queensland, Australia).

This themed collection highlights the latest breakthroughs in supercapacitor technology, addressing the critical need for safe, affordable, and sustainable large-scale energy storage solutions. This collection aims to serve as a platform for cutting-edge research that deepens the fundamental understanding and promotes the practical application of supercapacitors toward a sustainable energy future.

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