1. Center of Nano Chemistry Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
2. Division of Graphene Fiber Technology Beijing Graphene Institute (BGI) Beijing 100095 China
3. Advanced Membranes and Porous Materials Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology Thuwal 23955‐6900 Saudi Arabia
4. National Center for Nanoscience and Technology Beijing 100190 China
5. School of Materials Science and Engineering Nanyang Technological University Singapore 639798 Singapore
6. Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100021 China
7. School of Materials Science and Engineering Peking University Beijing 100871 China
8. China Bluestar Chengrand Chemical Co. Ltd. Chengdu 610041 China
9. CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern Mechanics University of Science and Technology of China Hefei 230026 China