Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 623-627 |
| Number of pages | 5 |
| Journal | ChemSusChem |
| Volume | 8 |
| Issue number | 4 |
| DOIs | |
| State | Published - Feb 2015 |
| Externally published | Yes |
Keywords
- Carbon
- Doping
- Electrochemistry
- Fuel cells
- Reduction