Carbon Nanosheets by Morphology‐Retained Carbonization of Two‐Dimensional Assembled Anisotropic Carbon Nanorings T Mori, H Tanaka, A Dalui, N Mitoma, K Suzuki, M Matsumoto, N Aggarwal, ... Angewandte Chemie International Edition 57 (31), 9679-9683, 2018 | 84 | 2018 |