Carbon nanosheets are widely used in electrocatalysis. Structure control is a great challenge in preparation of carbon materials. Here, a facial solid state assembly method is applied to prepare carbon nanosheets. By choosing amino acids as precursors, structure regulation of carbon nanosheets could be realized via switching the side chains of organic linkers, showing structure evolution from dense monolithic to porous nanosheets. Graphene-like carbon nanosheet constructed foam superstructure was also obtained. Owing to high porosity (BET surface area 1680 m2 g−1 with hierarchical pore structure) and nitrogen (8.23 wt%) modified graphitic frameworks, glutamic acid derived nitrogen doped porous carbon nanosheet superstructure showed high ORR activity (onset potential 0.9 V vs. RHE).
Wang Y, Pan Y, Zhu L, Guo N, Wang R, et al. (2019) Structure regulation of amino acids derived nitrogen doped porous carbon nanosheet through facile solid state assembly method. Microporous and Mesoporous Materials 277: 36–44. Available: http://dx.doi.org/10.1016/j.micromeso.2018.10.011.
This work was financially supported by the National Natural Science Foundation of China (21390394, 21771082 and 21771081), National Basic Research Program of China (2012CB821700 and 2011CB808703), NSFC (21261130584 and 91022030), “111” project (B07016), Award Project of KAUST (CRG-1-2012-LAI-009) and Ministry of Education, Science and Technology Development Center Project (20120061130012).