ZnSe nanoparticles dispersed in reduced graphene oxides with enhanced electrochemical properties in lithium/sodium ion batteries |
| |
| Authors: | Xi Cao Aijun Li Yang Yang Jitao Chen |
| |
| Institution: | College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 PR China.; School of Earth and Space Science, Peking University, Beijing 100871 PR China ; Materials Science & Engineering, Columbia University, New York NY USA |
| |
| Abstract: | A ZnSe-reduced graphene oxide (ZnSe-rGO) nanocomposite with ZnSe dispersed in rGO is prepared via a one-step hydrothermal method and applied as the anode materials for both lithium and sodium ion batteries (LIBs/SIBs). The as-prepared composite exhibits greatly enhanced reversible capacity, excellent cycling stability and rate capability (530 mA h g−1 after 100 cycles at 500 mA g−1 in LIBs, 259.5 mA h g−1 after 50 cycles at the current density of 100 mA g−1 in SIBs) compared with bare ZnSe in both lithium and sodium storage. The rGO plays an influential role in enhancing the conductivity of the nanocomposites, buffering the volume change and preventing the aggregation of ZnSe particles during the cycling process, thus securing the high structure stability and reversibility of the electrode.ZnSe-rGO nanocomposite with ZnSe dispersed in reduced graphene oxides is studied as an anode for lithium and sodium ion batteries (LIBs/SIBs). |
| |
| Keywords: | |
|
|
