Wuhan University of Technology - State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, SINOPEC - Shanghai Research Institute of Petrochemical Technology, Wuhan University of Technology - State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology - State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, SINOPEC - Shanghai Research Institute of Petrochemical Technology, SINOPEC - Shanghai Research Institute of Petrochemical Technology, SINOPEC - Shanghai Research Institute of Petrochemical Technology, University of Antwerp - Electron Microscopy for Materials Science, University of Antwerp - Electron Microscopy for Materials Science, University of Cambridge - Cambridge Graphene Centre and Wuhan University of Technology - State Key Laboratory of Advanced Technology for Materials Synthesis and Processing