A novel structural design of hybrid nanotube with CNTs and CeO2 supported Pt nanoparticles with improved performance for methanol electro-oxidation

作者：Li, Long; Qian, Yu; Yang, Jingjing; Tan, Xiaoyao^*; Dai, Zhao; Jin, Yongxiang; Wang, Haitao; Qu, Weili; Chu, Yuanyuan^*

来源：International Journal of Hydrogen Energy, 2016, 41(22): 9284-9294.

DOI：10.1016/j.ijhydene.2016.04.069

• CeO2 nanotube.
• Good contact
• Homogeneous distribution
• Methanol electrooxidation

This research was aimed to investigate the interaction between support and Pt nanoparticles and performance of Pt/CeO2-NTs catalyst for methanol oxidation. Pt/CeO2-CNTs-HN, Pt/ CeO2-CNTs-PB, Pt/CNTs and Pt/CeO2-NTs catalysts are prepared by microwave-assisted polyol process (MAPP). Electrochemical results show that Pt/CeO2-CNTs-HN catalysts are more active and stable than Pt/CeO2-CNTs-PB, Pt/CNTs and Pt/CeO2-NTs catalysts. X-ray diffraction, high resolution transmission electron microscopy and scanning transmission electron microscopy-energy dispersive spectroscopy elemental mapping have also been performed to characterize the catalyst and confirm the electrochemical results. The increased catalytic efficiency of Pt in the Pt/CeO2-CNTs-HN catalysts results from its good contact with CeO2 and CNTs simultaneously and the prior homogeneous distribution of CeO2 on CNTs facilitating the further homogeneous distribution of Pt on CeO2-CNTs-HN.

• 出版日期2016-6-15
• 单位天津工业大学; 哈尔滨师范大学