@article{Javier Soler-Piña2020, 
author = {Francisco Javier Soler-Piña and Celia Hernández-Rentero and Alvaro Caballero and Julián Morales and Enrique Rodríguez-Castellón and Jesús Canales-Vázquez},
title = {Highly graphitized carbon nanosheets with embedded Ni nanocrystals as anode for Li-ion batteries},
year = {2020},
journal = {Nano Research},
volume = {13},
number = {1},
pages = {86-94},
keywords = {anode, nickel nanoparticles, lithium batteries, carbon nanosheets},
url = {https://www.sciopen.com/article/10.1007/s12274-019-2576-4},
doi = {10.1007/s12274-019-2576-4},
abstract = {A C/Ni composite was prepared via thermal decomposition of a nickel oleate complex at 700 °C, yielding disperse Ni nanocrystals with an average size of 20 nm, encapsulated by carbon nanosheets as deduced from transmission electron microscopy (TEM) images and confirmed from X-ray photoelectron spectroscopy (XPS). Furthermore, the X-ray diffraction pattern revealed a good ordering of the carbon layers, forced by the Ni encapsulation to adopt a bending structure. Considering the close interaction between the graphitized framework and the metallic nanoparticles we have studied the properties of the composite as an anode for Li-ion batteries. Compared with other nanostructured synthetic carbons, this carbon composite has a low voltage hysteresis and a modest irreversible capacity value, properties that play a significant role in its behaviour as electrodes in full cell configuration. At moderate rate values, 0.25 C, the electrode delivers an average capacity value around 723 mAh·g-1 on cycling, among the highest values so far reported for this carbon type. At higher rate values, 1 C, the average capacity values delivered by the cell on cycling decrease, around 205 mAh·g-1, but it maintains good capacity retention, a coulombic efficiency close to 100% after the first cycles and recovery of the capacity values when the rate is restored from 3 to 0.1 C.}
}