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A rational design of bimetallic PdAu nanoflowers as efficient catalysts for methanol oxidation reaction |
| Jinyang Liu(刘锦阳)1, Min Wu(武敏)1, Xinyi Yang(杨新一)1,†, Juan Ding(丁娟)2,‡, Weiwei Lei(类伟巍)3, and Yongming Sui(隋永明)1 |
1 State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China;
2 Zhuhai College, Jilin University, Zhuhai 519041, China;
3 Institute for Frontier Materials, Deakin University, Geelong, Victoria, 3216, Australia |
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Abstract Methanol fuel cells have been intensively developed as clean and high-efficiency energy conversion system due to their high efficiency and low emission of pollutants. Here, we developed a simple aqueous synthetic method to prepare bimetallic PdAu nanoflowers catalysts for methanol oxidation reaction (MOR) in alkaline environment. Their composition can be directly tuned by changing the ratio between Pd and Au precursors. Compared with commercial Pd/C catalyst, all of the PdAu nanoflowers catalysts show the enhanced catalytic activity and durability. In particular, the PdAu nanoflowers specific activity reached 0.72 mA/cm2, which is 14 times that of commercial Pd/C catalyst. The superior MOR activity could be attributed to the unique porous structure and the shift of the d-band center of Pd.
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Received: 11 December 2020
Revised: 30 December 2020
Accepted manuscript online: 11 January 2021
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PACS:
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61.82.Bg
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(Metals and alloys)
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88.30.pf
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(Direct methanol fuel cells)
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82.45.Jn
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(Surface structure, reactivity and catalysis)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 118740271 and 1774124), Technology Development Program of Jilin Province, China (Grant No. 20180101285JC), and the China Postdoctoral Science Foundation (Grant Nos. 2019T120233 and 2017M621198). |
Corresponding Authors:
Xinyi Yang, Juan Ding
E-mail: yangxinyi@jlu.edu.cn;juanding0127@163.com
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Cite this article:
Jinyang Liu(刘锦阳), Min Wu(武敏), Xinyi Yang(杨新一), Juan Ding(丁娟), Weiwei Lei(类伟巍), and Yongming Sui(隋永明) A rational design of bimetallic PdAu nanoflowers as efficient catalysts for methanol oxidation reaction 2021 Chin. Phys. B 30 056102
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