Abstract
Taking advantage of the nitrogen (N)-participation and large surface area of N-doped carbon nanocages (NCNCs), the CoO x nanocrystals are conveniently immobilized onto the NCNCs with high dispersion. The CoO x /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.
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Chen, S., Wang, L., Wu, Q. et al. Advanced non-precious electrocatalyst of the mixed valence CoO x nanocrystals supported on N-doped carbon nanocages for oxygen reduction. Sci. China Chem. 58, 180–186 (2015). https://doi.org/10.1007/s11426-014-5279-4
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DOI: https://doi.org/10.1007/s11426-014-5279-4