Huang Xiaodan, Zhao Yufei, Ao Zhimin, Wang Guoxiu
Centre for Clean Energy Technology, School of Chemistry and Forensic Science, University of Technology Sydney, NSW 2007, Australia.
Sci Rep. 2014 Dec 19;4:7557. doi: 10.1038/srep07557.
Synthesis of mesoporous graphene materials by soft-template methods remains a great challenge, owing to the poor self-assembly capability of precursors and the severe agglomeration of graphene nanosheets. Herein, a micelle-template strategy to prepare porous graphene materials with controllable mesopores, high specific surface areas and large pore volumes is reported. By fine-tuning the synthesis parameters, the pore sizes of mesoporous graphene can be rationally controlled. Nitrogen heteroatom doping is found to remarkably render electrocatalytic properties towards hydrogen evolution reactions as a highly efficient metal-free catalyst. The synthesis strategy and the demonstration of highly efficient catalytic effect provide benchmarks for preparing well-defined mesoporous graphene materials for energy production applications.
通过软模板法合成介孔石墨烯材料仍然是一个巨大的挑战，这是由于前驱体的自组装能力较差以及石墨烯纳米片严重团聚。在此，报道了一种胶束模板策略，用于制备具有可控介孔、高比表面积和大孔体积的多孔石墨烯材料。通过微调合成参数，可以合理控制介孔石墨烯的孔径。发现氮杂原子掺杂作为一种高效的无金属催化剂，对析氢反应具有显著的电催化性能。该合成策略和高效催化效果的证明为制备用于能源生产应用的明确介孔石墨烯材料提供了基准。
