Hongcai Gao

TL;DR: The asymmetric supercapacitor fabricated with high energy and power densities using graphene hydrogel with 3D interconnected pores as the negative electrode and vertically aligned MnO(2) nanoplates on nickel foam as the positive electrode in a neutral aqueous Na( 2)SO(4) electrolyte presents stable cycling performance with 83.4% capacitance retention after 5000 cycles.

TL;DR: Benefiting from the abundant functional groups of polydopamine and the high specific surface areas of graphene hydrogel with three-dimensional interconnected pores, the prepared material exhibits high adsorption capacities toward a wide spectrum of contaminants, including heavy metals, synthetic dyes, and aromatic pollutants.

TL;DR: A cyanoperovskite KxMnFe(CN)6 (0 ≤ x ≤ 2) as a potassium cathode is proposed: high-spin MnIII/MnII and low-spin FeIII/FeII couples have similar energies and exhibit two close plateaus centered at 3.6 V.

TL;DR: A facile one-step ultrasonication-assisted electrochemical method to synthesize nanocomposites of graphene and PtNi alloy nanoparticles (NPs) and their uses for highly selective nonenzymatic glucose detection and for reproducible detection of glucose in human urine samples is reported.

TL;DR: In this paper, the authors studied the cathode/electrolyte interface between LiCoO2 and Li7La3Zr2O12 (LLZO), and found that the high-temperature process to fuse LiCo2 and LLZO induced cross-diffusion of elements and formation of the tetragonal lithium phase at the interface.