Nanoporous PdCe bimetallic nanocubes with high catalytic activity towards ethanol electro-oxidation and the oxygen reduction reaction in alkaline media

作者：Chen, Jiyun; Li, Yao; Lu, Nali; Tian, Chunhuan; Han, Zhida^*; Zhang, Lei; Fang, Yong; Qian, Bin^*; Jiang, Xuefan; Cui, Rongjing^*

来源：Journal of Materials Chemistry A, 2018, 6(46): 23560-23568.

DOI：10.1039/c8ta08445a

• TOTAL-ENERGY CALCULATIONS
• ENHANCED ACTIVITY
• ALLOY NANOWIRES
• PT-LA
• NANOPARTICLES
• METALS
• FE
• ELECTROCATALYSTS
• STABILITY
• EVOLUTION

In this work, we reported a simple method to fabricate nanoporous PdCe (NP-PdCe) nanocubes with high activity and good stability by melt spinning combined with chemical dealloying. The microstructure results show that the prepared NP-PdCe alloy consists of nanocubes with an average size of 200 nm, exhibiting a three-dimensional nanoporous structure with a pore size of around 5 nm. Owing to the combined effect of bimetallic synergistic action and the nanoporous structure, the NP-PdCe catalyst exhibits much higher electrocatalytic activity and durability towards ethanol electro-oxidation and the oxygen reduction reaction in alkaline solution, relative to nanoporous Pd and commercial Pd/C catalysts. With the advantages of scalable preparation and enhanced catalytic performance, the NP-PdCe nanocubes hold great potential for application as a promising catalyst in direct ethanol fuel cells.

• 出版日期2018-12-14
• 单位苏州大学; 常熟理工学院; 中国矿业大学（北京）