Advanced non-precious electrocatalyst of the mixed valence CoOx nanocrystals supported on N-doped carbon nanocages for oxygen reduction

被引：0
作者：
Sheng Chen
Liwei Wang
Qiang Wu
Xiang Li
Yu Zhao
Hongwei Lai
Lijun Yang
Tao Sun
Yi Li
Xizhang Wang
Zheng Hu
机构：
[1] Nanjing University,Key Laboratory of Mesoscopic Chemistry of Ministry of Education; Jiangsu Provincial Lab for Nanotechnology; School of Chemistry and Chemical Engineering
来源：
Science China Chemistry | 2015年 / 58卷
关键词：
cobalt oxide nanocrystals; fuel cells; non-precious electrocatalysts; nitrogen doped carbon nanocages; oxygen reduction reaction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
引用
收藏
页码：180 / 186
页数：6
相关论文
共 240 条
[1]  
Steele BCH(2001)Materials for fuel-cell technologies Nature 414 345-352
[2]  
Heinzel A(2012)Opportunities and challenges for a sustainable energy future Nature 488 294-303
[3]  
Chu S(2009)Just a dream-or future reality? Sicence 324 48-49
[4]  
Majumdar A(2010)3- J Am Chem Soc 132 15839-15841
[5]  
Gasteiger HA(1981) carbon nanotube structures used as high performance catalyst for oxygen reduction reaction J Appl Electrochem 11 787-796
[6]  
Markovic NM(2009)Carbon supports for phosphoric acid fuel cell electrocatalysts: alternative materials and methods of evaluation Energy Policy 37 1805-1808
[7]  
Xiong W(2013)Resisting the nation state: the pacifist and anarchist tradition Nat Commun 4 1922-1889
[8]  
Du F(2013)Active and stable carbon nanotube/nanoparticle composite electrocatalyst for oxygen reduction Acc Chem Res 46 1878-130
[9]  
Liu Y(2011)Nanostructured nonprecious metal catalysts for oxygen reduction reaction Energy Environ Sci 4 114-3192
[10]  
Perez A(2011)Recent advances in non-precious metal catalysis for oxygen-reduction reaction in polymer electrolyte fuel cells Energy Environ Sci 4 3167-1291
12345678910