摘要
Taking advantage of the nitrogen(N)-participation and large surface area of N-doped carbon nanocages(NCNCs),the Co Ox nanocrystals are conveniently immobilized onto the NCNCs with high dispersion.The Co Ox/NCNCs hybrid exists in the mixed valence with predominant Co O over Co3O4 and demonstrates superb oxygen reduction reaction activity and stability remaining^94%current density even after operation over 100 h.These results suggest a promising strategy to develop advanced electrocatalysts with the novel NCNCs or even beyond.
Taking advantage of the nitrogen （N）-participation and large surface area of N-doped carbon nanocages （NCNCs）, the COOx nanocrystals are conveniently immobilized onto the NCNCs with high dispersion. The CoOx/NCNCs hybrid exists in the mixed valence with predominant CoO over Co3O4 and demonstrates superb oxygen reduction reaction activity and stability remaining -94% current density even after operation over 100 h. These results suggest a promising strategy to develop advanced electrocatalysts with the novel NCNCs or even beyond.
基金
supported by the National Natural Science Foundation of China(51232003,21473089,21373108,21173115)
the National Basic Research Program of China(2013CB932902)
Jiangsu Province Science and Technology Support Project(BE2012159)
Suzhou Science and Technology Plan projects(ZXG2013025)
National Science Fund for Talent Training in Basic Science(J1103310)
