Embedding Pt Nanocrystals in N-Doped Porous Carbon/Carbon Nanotubes toward Highly Stable Electrocatalysts for the Oxygen Reduction Reaction
Lin Guo, Wen-Jie Jiang, Yun Zhang, Jin-Song Hu, Zi-Dong Wei, Li-Jun Wan
ACS CATALYSIS | AMER CHEMICAL SOC | Published : 2015
The development of highly stable and efficient catalysts for sluggish cathode oxygen reduction reaction (ORR) is extremely important for the long-term operation and the commercialization of proton exchange membrane fuel cells (PEMFCs) but still challenging. We present herein a facile strategy to efficiently embed Pt nanocrystals into N-doped porous carbon/carbon nanotubes (Pt@CNx/CNT). The N-doped porous carbon shells not only effectively prevented Pt nanocrystals from detachment, dissolution, migration, and aggregation during accelerated durability tests or heat-treatment at 900 °C, but also allowed the access of electrolyte to the Pt surface and preserved the good electron transfer of CNT ..View full abstract
Awarded by National Key Project on Basic Research
Awarded by National Natural Science Foundation of China
Awarded by Strategic Priority Research Program of the Chinese Academy of Sciences
We acknowledge financial support from the National Key Project on Basic Research (2015CB932302, 2012CB215500, and 2011CB808701), the National Natural Science Foundation of China (91127044 and 21173237), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB12020100).