One‐Pot Synthesis of Carbon‐Coated Nanostructured Iron Oxide on Few‐Layer Graphene for Lithium‐Ion Batteries |
| |
| Authors: | Dr Zhenyu Sun Dr Edyta Madej Dr Christian Wiktor Ilya Sinev Prof Roland A Fischer Prof Gustaaf van Tendeloo Prof Martin Muhler Prof Wolfgang Schuhmann Dr Edgar Ventosa |
| |
| Institution: | 1. Analytical Chemistry ‐ Center for Electrochemical Sciences (CES), Ruhr‐Universit?t Bochum, 44780 Bochum (Germany);2. Laboratory of Industrial Chemistry, Ruhr‐Universit?t Bochum, 44780 Bochum (Germany);3. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 (P.R. China);4. Inorganic Chemistry II, Ruhr‐Universit?t Bochum, 44780 Bochum (Germany);5. Electron Microscopy for Materials Science (EMAT), Universiteit Antwerp, 2020 Antwerp (Belgium) |
| |
| Abstract: | Nanostructure engineering has been demonstrated to improve the electrochemical performance of iron oxide based electrodes in Li‐ion batteries (LIBs). However, the synthesis of advanced functional materials often requires multiple steps. Herein, we present a facile one‐pot synthesis of carbon‐coated nanostructured iron oxide on few‐layer graphene through high‐pressure pyrolysis of ferrocene in the presence of pristine graphene. The ferrocene precursor supplies both iron and carbon to form the carbon‐coated iron oxide, while the graphene acts as a high‐surface‐area anchor to achieve small metal oxide nanoparticles. When evaluated as a negative‐electrode material for LIBs, our composite showed improved electrochemical performance compared to commercial iron oxide nanopowders, especially at fast charge/discharge rates. |
| |
| Keywords: | ferrocene graphene iron oxide lithium‐ion batteries nanostructures |
|
|
