State Key Lab of High Performance Ceramics and Superfine Microstructure, Institution Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 (PR China).
ChemSusChem. 2015 Feb;8(4):623-7. doi: 10.1002/cssc.201403000. Epub 2015 Jan 23.
Hollow-structured mesoporous carbon cubes (HMCCs) have been successfully synthesized from carbon dioxide by a facile approach based on thermal reduction of magnesium. The approach is economical and applicable to large-scale synthesis. Notably, pyrrole-type nitrogen species are doped into the HMCCs during the synthesis in situ, that is, without introducing a nitrogen-containing precursor. A formation mechanism of the HMCCs is proposed, and formation of the structure is attributed to MgO templates generated in situ. Furthermore, the HMCCs are demonstrated to be a promising alternative to commercial Pt/C fuel-cell catalysts for the electrochemical oxygen reduction reaction.
中空结构介孔碳立方体（HMCCs）已成功地通过一种基于热还原镁的简便方法从二氧化碳中合成。该方法经济实惠，适用于大规模合成。值得注意的是，在合成过程中，吡咯型氮物种被原位掺杂到 HMCCs 中，即无需引入含氮前体。提出了 HMCCs 的形成机理，结构的形成归因于原位生成的 MgO 模板。此外，HMCCs 被证明是商业 Pt/C 燃料电池催化剂在电化学氧还原反应中的一种很有前途的替代品。
