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Themed collection JMC A Top Picks web collection: Advances in supercapacitors

20 items
Feature Article

Flexible supercapacitors based on carbon nanomaterials

Flexible supercapacitors based on carbon nanomaterials are currently of intense interest for use in portable, light-weight, and wearable electronics.

Graphical abstract: Flexible supercapacitors based on carbon nanomaterials
Feature Article

Layered transition metal dichalcogenides for electrochemical energy generation and storage

Layered transition metal dichalcogenides (TMDs) (MoS2, MoSe2, WS2, WSe2, etc.) are a chemically diverse class of compounds having remarkable electrochemical properties.

Graphical abstract: Layered transition metal dichalcogenides for electrochemical energy generation and storage
Feature Article

Graphene-based nanocomposites for energy storage and conversion in lithium batteries, supercapacitors and fuel cells

Revolutionary development in the synthesis of graphene and its hybrids has made their use in various devices, like lithium based batteries, supercapacitors and fuel cells, possible.

Graphical abstract: Graphene-based nanocomposites for energy storage and conversion in lithium batteries, supercapacitors and fuel cells
Review Article

MnO2-based nanostructures for high-performance supercapacitors

The recent progress, challenges and promising future on design, synthesis and fabrication of MnO2 for supercapacitors are reviewed and discussed.

Graphical abstract: MnO2-based nanostructures for high-performance supercapacitors
Communication

Vertically aligned graphene nanosheets on silicon using an ionic liquid electrolyte: towards high performance on-chip micro-supercapacitors

Vertically oriented graphene nanosheets were synthesized by an alternative and simple approach based on electron cyclotron resonance-plasma enhanced chemical vapor deposition (ECR-CVD) onto highly doped silicon substrates.

Graphical abstract: Vertically aligned graphene nanosheets on silicon using an ionic liquid electrolyte: towards high performance on-chip micro-supercapacitors
Communication

Spray processing of TiO2 nanoparticle/ionomer coatings on carbon nanotube scaffolds for solid-state supercapacitors

A one-step scalable spray technique was used to fabricate solid-state supercapacitors with 3D nanostructured hybrid electrodes.

Graphical abstract: Spray processing of TiO2 nanoparticle/ionomer coatings on carbon nanotube scaffolds for solid-state supercapacitors
Communication

Nanostructured conductive polypyrrole hydrogels as high-performance, flexible supercapacitor electrodes

A spongy polypyrrole based conductive hydrogel with chemically tunable structures and electrochemical characteristics was developed for highly flexible solid-state supercapacitors.

Graphical abstract: Nanostructured conductive polypyrrole hydrogels as high-performance, flexible supercapacitor electrodes
From the themed collection: Emerging Investigators
Paper

An innovative 3-D nanoforest heterostructure made of polypyrrole coated silicon nanotrees for new high performance hybrid micro-supercapacitors

A micro-supercapacitor electrode made of polypyrrole coated silicon nanotrees.

Graphical abstract: An innovative 3-D nanoforest heterostructure made of polypyrrole coated silicon nanotrees for new high performance hybrid micro-supercapacitors
Paper

MnO2 nanostructures with three-dimensional (3D) morphology replicated from diatoms for high-performance supercapacitors

The synthesis of MnO2 with unique and complex 3-d morphology replicated from diatoms and their outstanding electrochemical properties for high-performance supercapacitors are demonstrated.

Graphical abstract: MnO2 nanostructures with three-dimensional (3D) morphology replicated from diatoms for high-performance supercapacitors
Paper

Non-covalent functionalization of reduced graphene oxide using sulfanilic acid azocromotrop and its application as a supercapacitor electrode material

Sulfanilic acid azocromotrop modified reduced graphene oxide was prepared by non-covalent functionalization of graphene oxide followed by post reduction using hydrazine monohydrate.

Graphical abstract: Non-covalent functionalization of reduced graphene oxide using sulfanilic acid azocromotrop and its application as a supercapacitor electrode material
Paper

Synthesis of Ni(OH)2/RGO pseudocomposite on nickel foam for supercapacitors with superior performance

A “pseudocomposite” with unique nano-architecture of two Ni(OH)2/RGO layer was in situ synthesized on nickel foam (NF) using a facile onepot hydrothermal approach, which exhibits superior capacitive performance (15.65 F cm−2 at 7 mA cm−2, 90.6% capacity retention after 5000 cycles at 20 mA cm−2).

Graphical abstract: Synthesis of Ni(OH)2/RGO pseudocomposite on nickel foam for supercapacitors with superior performance
Paper

N-doped porous carbon capsules with tunable porosity for high-performance supercapacitors

A procedure for the fabrication of hollow carbon spheres with high nitrogen content and tunable porosity is presented. The carbon capsules exhibited high specific capacitances and a remarkable capacitance retention.

Graphical abstract: N-doped porous carbon capsules with tunable porosity for high-performance supercapacitors
Paper

Self-assembled three-dimensional hierarchical graphene hybrid hydrogels with ultrathin β-MnO2 nanobelts for high performance supercapacitors

A facile protocol for the self-assembly of the rGO/β-MnO2 hybrid hydrogel with ultrafine structure and precise control of mass-loading for high performance supercapacitors is reported.

Graphical abstract: Self-assembled three-dimensional hierarchical graphene hybrid hydrogels with ultrathin β-MnO2 nanobelts for high performance supercapacitors
Paper

Three-dimensional networked NiCo2O4/MnO2 branched nanowire heterostructure arrays on nickel foam with enhanced supercapacitor performance

Three-dimensional networked NiCo2O4/MnO2 branched nanowire heterostructure arrays directly grown on Ni foam for high-performance electrode application in supercapacitors.

Graphical abstract: Three-dimensional networked NiCo2O4/MnO2 branched nanowire heterostructure arrays on nickel foam with enhanced supercapacitor performance
Paper

Hierarchical nanosheet-based NiMoO4 nanotubes: synthesis and high supercapacitor performance

Hierarchical nanosheet-based NiMoO4 nanotubes with a high surface area of 128.5 m2 g−1, composed of highly ordered ultrathin nanosheets with a thickness of less than 10 nm, were synthesized by a hydrothermal treatment and a subsequent in situ diffusion reaction method, exhibiting excellent electrochemical performances.

Graphical abstract: Hierarchical nanosheet-based NiMoO4 nanotubes: synthesis and high supercapacitor performance
Paper

Fabrication of symmetric supercapacitors based on MOF-derived nanoporous carbons

We design novel symmetric supercapacitors based on nanoporous carbons (NPCs) by direct carbonization of Zn-based metal–organic frameworks (MOFs).

Graphical abstract: Fabrication of symmetric supercapacitors based on MOF-derived nanoporous carbons
Paper

Nanostructured cobalt sulfide-on-fiber with tunable morphology as electrodes for asymmetric hybrid supercapacitors

Porous cobalt sulfide (Co9S8) nanostructures with tunable morphology directly nucleated over carbon fiber are evaluated as electrodes for asymmetric hybrid supercapacitors.

Graphical abstract: Nanostructured cobalt sulfide-on-fiber with tunable morphology as electrodes for asymmetric hybrid supercapacitors
Paper

Amorphous Ni(OH)2 @ three-dimensional Ni core–shell nanostructures for high capacitance pseudocapacitors and asymmetric supercapacitors

A complex hydroxide/metal Ni(OH)2@Ni core–shell electrode was developed for a high-performance and flexible pseudocapacitor.

Graphical abstract: Amorphous Ni(OH)2 @ three-dimensional Ni core–shell nanostructures for high capacitance pseudocapacitors and asymmetric supercapacitors
Paper

Porous nitrogen-doped hollow carbon spheres derived from polyaniline for high performance supercapacitors

The porous nitrogen-doped hollow carbon spheres derived from polyaniline are promising electrode materials for high performance supercapacitors due to their hierarchical porous structure and nitrogen-doping.

Graphical abstract: Porous nitrogen-doped hollow carbon spheres derived from polyaniline for high performance supercapacitors
Paper

Design of graphene-coated hollow mesoporous carbon spheres as high performance electrodes for capacitive deionization

Graphene-coated hollow mesoporous carbon spheres are rationally designed and originally used as efficient electrode materials for capacitive deionization.

Graphical abstract: Design of graphene-coated hollow mesoporous carbon spheres as high performance electrodes for capacitive deionization
20 items

About this collection

This second in a series of JMC A Top Picks web collections focusses on the recent advances in supercapacitors.

Journal of Material Chemistry A’s Associate Editor David Lou (Nanyang Technological University, Singapore) highlights some of the journal’s best research on supercapacitors with crucial applications as an alternative and/or supplementary to lithium ion batteries.

Browse this collection of research articles describing the latest advancemements in carbon materials, electrode design and performance.  These well-designed supercapacitors and hybrid supercapacitors can not only deliver high specific capacitance and excellent rate capability but also exhibit high power and energy densities and superb cycling stability.

Great advances have been achieved in this exciting field.

Spotlight

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