Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 277, Issue -, Pages 36-44Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2018.10.011
Keywords
Carbon nanosheet; Amino acid; Structure regulation; Solvent free; Oxygen reduction reaction
Categories
Funding
- National Natural Science Foundation of China [21390394, 21771082, 21771081]
- National Basic Research Program of China [2012CB821700, 2011CB808703]
- NSFC [21261130584, 91022030]
- 111 project [B07016]
- KAUST [CRG-1-2012-LAI-009]
- Ministry of Education, Science and Technology Development Center Project [20120061130012]
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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 m(2) 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).
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