Abstract
Controlled synthesis of PtM (M=transition metal) alloy nanostructures via organic solvents as high-performance oxygen reduction reaction electrocatalysts Shuiyun Shen, Guanghua Wei, Yangge Guo, Fan Li, Junliang Zhang* Institute of Fuel Cells, MOE Key Laboratory of Power & Machinery Engineering, Shanghai Jiao Tong University, Shanghai 200240, China : It is undoubted that to commercialize the polymer electrolyte membrane fuel cells (PEMFCs), there remains a great challenge to further improve the oxygen reduction reaction (ORR) activity on Pt. It has been proved that alloying Pt with transition metal (Fe, Co, Ni, and so on) will improve not only the activity but also the durability towards the ORR [1]. More importantly, it is also found that crystal plane-oriented PtM alloy nanoparticles or nanostructures show much higher ORR activity and durability [2]. In this work, we propose to synthesize PtM (M=transition metal) alloy electrocatalysts with controlled composition and structures via organic solvents. The as-obtained electrocatalysts will be investigated as the ORR electrocatalyst for PEMFCs. Acknowledgements This work was supported by the National Natural Science Foundation of China (21373135, 21533005 and 21503134), and the Science Foundation of Ministry of Education of China (413064).
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