Ensity Functional Theory Calculation News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Carbon nanofibers (CNFs) with high specific surface area show great potential for sodium storage as a hard carbon material. Herein, CNFs anchored with Ni nanoparticles (CNFs/Ni) were prepared through chemical vapor deposition and impregnation reduction methods, in situ growing on the three-dimensional porous copper current collector (3DP-Cu). The coupling effect of high-spin state Ni nanoparticles leads to the increase of defect density and the expansion of lattice spacing of CNFs. Meanwhile, the 3DP-Cu ensures a high loading capacity of CNFs and short ion/electron transport channels. As an in...

Carbon nanofibers (CNFs) have been extensively studied as anode materials for sodium-ion batteries due to their high conductivity, large aspect ratio and good electrochemical stability. The low specific capacity and low first cycle efficiency of CNFs, however, have hindered its practical application. Herein, we present a facile strategy to synthesize a novel CNFs decorated with Cu/CuO nanoparticles (Cu-CNFs) using magnetron sputtering method. Cu/CuO nanoparticles were uniformly distributed on the surface of CNFs. According to the density functional theory (DFT) calculation, Cu/CuO nanoparticle...