A freestanding 3D heterostructure film stitched by mof‐derived carbon nanotube microsphere superstructure and reduced graphene oxide sheets: a superior multifunctional … L Yan, Y Xu, P Chen, S Zhang, H Jiang, L Yang, Y Wang, L Zhang, J Shen, ... Advanced Materials 32 (48), 2003313, 2020 | 336 | 2020 |