Themed collection Graphene-based Energy Devices

Due to its excellent electronic properties, facile synthesis, and ease of functionalization, graphene has attracted huge attention in numerous subjects. In this themed collection, a series of recent advancements are reported along with comprehensive review articles that focus on graphene’s versatility and tunability as well as its remarkable applications in various types of energy storage and conversion devices.

Graphene-based materials hold great promise as electrode materials/catalysts in microbial fuel cells for sustainable bioenergy recovery from wastes.

3D structured graphene was fabricated via a solution combustion method and used as an efficient and stable catalyst support of platinum for the electrochemical oxidation of methanol.

The most recent research advancements of our and other groups in the field of PCMs decorated 3D graphene based electrode for supercapacitors are discussed.

Fuel cells are promising alternative energy devices owing to their high efficiency and eco-friendliness.

This feature article highlights the fabrication of three-dimensional graphene-based nanomaterials and their application in binder-free supercapacitors.

Computational chemistry has a bright future in the field of graphene-based energy applications. For example, outcomes from computational chemistry studies will help to develop new graphene-nanoparticle assemblies for fuel cells.

The recent progress in graphene based enzyme nanocomposites is reviewed with focus on the physicochemical aspects of graphene and its use as a bioimmobilization and electrode material in biofuel cells.

This review aims to summarise recent relevant electrochemical approaches to the production of graphene and related materials.

This review discusses recent progress in 3D graphene-based composites and their applications in energy conversion/storage devices.

SiO₂-coated particles were synthesized using wet chemical processes under ambient conditions as a novel lithium-sulfur cathode material. Performance was further improved via addition of mildly reduced graphene oxide (mrGO).

Optimization of the electrode/electrolyte double-layer interface is a key factor for improving electrode performance of aqueous electrolyte based supercapacitors (SCs).

A novel method to construct flawed MoO₂ belts on graphene was developed, which provided an alternative way to develop highly efficient electrocatalysts.

We report the synthesis of two-dimensional (2D) NiCo₂O₄ nanosheet-coated three-dimensional graphene network (3DGN), which is then used as an electrode for high-rate, long-cycle-life supercapacitors.

The B-doped RGO prepared by a facile one-step reflux method exhibits significantly higher visible-light-driven photocatalytic activity than non-doped RGO for the degradation of dyes.

An enzymatic biofuel cell (EBFC) was fabricated by combining top-down carbon microelectromechanical systems and bottom-up electrophoretic deposition. The developed 3D graphene/enzyme network based EBFC generated a maximum power density of 136.3 μW cm⁻² at 0.59 V.

High performance organic devices were successfully demonstrated with the presence of highly ordered nanoimprinted Au nanodisks.

Nitrogen-doped graphene nanoribbons (N-GNRs) were prepared by thermal treatment of the as-zipped graphene oxide nanoribbon in NH₃ gas. The resultant N-GNRs were found to act as efficient metal-free counter electrodes in DSSCs.

The efficiency of graphene–silicon (Gr–Si) Schottky junction solar cells can be effectively improved by electric field doping based on the employment of a top-gate to the cell or polarization of a ferroelectric polymer layer integrated in the cell.

This work demonstrates a simple route to develop mechanically flexible electrodes for Li-ion batteries (LIBs) that are usable as lightweight effective conducting networks for both cathodes and anodes.

The catalytic activity for the oxygen reduction reaction (ORR) could be adjusted via the controllable oxidization of Co/BNCNTs.