Edge-Plane Exposed N-Doped Carbon Nanofibers Toward Fast K-Ion Adsorption/Diffusion Kinetics for K-Ion Capacitors

On the Rational Recursive Sequence X_{N+1}=ƔX_{N-K}+(AX_N+BX_{N-K})⁄(CX_N-DX_{N-K})

Lithium-ion capacitors with 2D Nb2CTx (MXene) - carbon nanotube electrodes

3 types of lithium-ion capacitors using Nb2CTx-CNT as one electrode were tested. The highest volumetric energy density of 50e70 Wh/L was achieved. Energy density of symmetric cell exceeds that of lithium titanate/acti-

Composite of K-doped (NH4)2V3O8/graphene as an anode material for sodium-ion batteries.

A layer structured K-doped (NH4)2V3O8/graphene (K-NVG) was prepared via a hydrothermal route and then used as an anode material for sodium-ion batteries for the first time. The K-NVG nanosheets have a diameter in the range of 200-500 nm. The K-NVG electrode exhibited stable cycling and a good rate performance with a reversible capacity of 235.4 mA h g(-1), which is much higher than the 90.5 mA ...

FOCAL POINT AND FOCAL K-PLANE

This paper deals with the basic notions of k-tautimmersions . These notions come from two special cases; that is, tight and taut immersions. Tight and taut based on high and distance functions respectively and their basic notions are normal bundle, endpoint map, focal point, critical normal. We generalize hight and distance functions to cylindrical function and define basic notions of k-taut ...

Electron-Ion Recombination at 10 K

This work is focused on recombination processes in low temperature plasma down to 10 K. When reaching this low temperature in atomic gases, Collisional Radiative Recombination (CRR) where extra electron carries off energy, is dominant. A few accomplished CRR experiments do not follow theoretical predictions of very strong negative dependence. We propose to study transition from dissociative and...