Ja-Yeon Choi

TL;DR: In this paper, metal-air battery technologies such as zinc-air and lithium-air batteries offer extremely high theoretical energy capacities, making them excellent candidates as range extenders for these next genera-tion vehicles.

TL;DR: In this paper, the pseudocapacitive contribution of conformal redox-active polypyrrole to graphene supercapacitor electrodes results in high performance while still maintaining the inherent flexibility of graphene films.

TL;DR: Sulfur-doped graphene (SG) is prepared by a thermal shock/quench anneal process and investigated as a unique Pt nanoparticle support for the oxygen reduction reaction (ORR) as discussed by the authors.

TL;DR: The unprecedented fuel-cell performance of this electrocatalyst is linked to the graphene frameworks with vast distribution of pore sizes, which maximizes the active-sites accessibility, facilitates mass-transport properties, and improves the carbon corrosion resistance.

TL;DR: In this article, the authors presented unique graphene-carbon nanotube composites (GC) doped sequentially with both nitrogen and sulfur (GC-NLS) and subject them to extensive physicochemical characterization and electrochemical evaluation toward the electrochemical oxygen reduction reaction (ORR) in an alkaline electrolyte.