Facile Synthesis of Nanoporous Pt-Y alloy with Enhanced Electrocatalytic Activity and Durability.
Recently, Pt-Y alloy has displayed an excellent electrocatalytic activity for oxygen reduction reaction (ORR), and is regarded as a promising cathode catalyst for fuel cells. However, the bulk production of nanoscaled Pt-Y alloy with outstanding catalytic performance remains a great challenge. Here, we address the challenge through a simple dealloying method to synthesize nanoporous Pt-Y alloy (NP-PtY) with a typical ligament size of ~5 nm. By combining the intrinsic superior electrocatalytic activity of Pt-Y alloy with the special nanoporous structure, the NP-PtY bimetallic catalyst presents higher activity for ORR and ethanol oxidation reaction, and better electrocatalytic stability than the commercial Pt/C catalyst and nanoporous Pt alloy. The as-made NP-PtY holds great application potential as a promising electrocatalyst in proton exchange membrane fuel cells due to the advantages of facile preparation and excellent catalytic performance.
Department of Chemistry and Materials Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China.
Rongjing
R
Cui
Department of Chemistry and Materials Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China.|Department of Chemistry and Materials, Hebei Normal University, Shijiazhuang 050024, People's Republic of China.
Ling
L
Mei
Department of Chemistry and Materials Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China.|Department of Chemistry and Materials, Hebei Normal University, Shijiazhuang 050024, People's Republic of China.
Guangjie
G
Han
Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.|School of Materials Science and Engineering, China University of Mining &Technology, Xuzhou 221116, People's Republic of China.
Jiyun
J
Chen
Suzhou Key Laboratory of Food Quality and Safety, School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China.
Genhua
G
Zhang
Suzhou Key Laboratory of Food Quality and Safety, School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, People's Republic of China.
Ying
Y
Quan
Department of Chemistry and Materials, Hebei Normal University, Shijiazhuang 050024, People's Republic of China.
Ning
N
Gu
Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.
Lei
L
Zhang
Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.
Yong
Y
Fang
Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.
Bin
B
Qian
Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.
Xuefan
X
Jiang
Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People's Republic of China.
Zhida
Z
Han