Chem. Sci., 2025, Accepted Manuscript DOI: 10.1039/D5SC04918K, Edge Article Xiya Yang, Mengying Huang, Guang Lu, Jiang Rong, Xin-Xin Wang, Zhixin Liu, Lijuan Jiao, Erhong Hao, Dongdong Qi, Qian Chen, Kang Wang, Jianzhuang Jiang In-situ growth of covalent organic frameworks (COFs) nanosheets on substrate like graphene and carbon nanotubes usually leads to significantly enhanced conductivity but obvious reduction in crystallinity, resulting in unideal electrochemical...