College of Materials Science and Engineering;
Zhejiang University of Technology;
Hangzhou 310014;
China;
Department of Chemistry;
City University of Hong Kong;
Hong Kong;
China;
Department of Chemistry;
The Chinese University of Hong Kong;
Hong Kong;
China;
School of Chemistry and Environmental Engineering;
Yancheng Teachers University;
Yancheng 224007;
China;
Institute of Materials Research and Engineering;
A'STAR(Agency for Science Technology and Research);
Innovis 138634;
Singapore;
Covalent organic framework nanosheets; Top-down method; Bottom-up method; Batteries; Photocatalysts; Electrocatalysts;