The development of highly active and low-cost catalysts is a challenge for the application and large-scale commercialization of proton exchange membrane fuel cell (PEMFC). In this study, a series of Pt–Ni alloy catalysts is synthesized by potentiostatic electrodeposition, and the optimum deposition parameters are determined by an orthogonal array experiment. The effect of electrodeposition parameters on the morphology, composition, and electrocatalytic activity for oxygen reduction reaction (ORR) is investigated. The Pt–Ni alloy catalyst prepared with the optimum deposition parameters of −0.35 V versus saturated calomel electrode (SCE), 50 °C for 20 min exhibits the higher ORR activity. Rapid potential cycling dealloying is also employed to modify the morphology of Pt–Ni catalysts, which results in the increase of the electrochemical surface area (ECSA) and the improvement of the ORR electrocatalytic activity. The electrochemical active surface area (ECSA) for the dealloying Pt–Ni catalyst (D-OP-sample) with the grain size of 6.2 nm is 87.0 m2 g−1. The current density and the mass activity for the electrode with D-OP-sample catalyst are 281.5 mA·cm−2 at 0.4 V and 587.9 mA· at 0.6 V, respectively.
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May 2016
Research-Article
Optimization of Pt–Ni Alloy Catalysts Synthesized by Potentiostatic Electrodeposition for Cathode in PEMFC
Cheng Wang,
Cheng Wang
College of Materials Science and Engineering,
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
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Ze Lin Chen,
Ze Lin Chen
College of Materials Science and Engineering,
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Search for other works by this author on:
An Wen Tao,
An Wen Tao
College of Materials Science and Engineering,
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
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Hua Zhang
Hua Zhang
College of Materials Science and Engineering,
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
e-mail: huazhang@njtech.edu.cn
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
e-mail: huazhang@njtech.edu.cn
Search for other works by this author on:
Cheng Wang
College of Materials Science and Engineering,
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Ze Lin Chen
College of Materials Science and Engineering,
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
An Wen Tao
College of Materials Science and Engineering,
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
Hua Zhang
College of Materials Science and Engineering,
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
e-mail: huazhang@njtech.edu.cn
Nanjing Tech University,
#5 Xinmofan Road,
Nanjing 210009, Jiangsu, China
e-mail: huazhang@njtech.edu.cn
1Corresponding author.
Manuscript received February 5, 2016; final manuscript received August 16, 2016; published online September 8, 2016. Assoc. Editor: William Mustain.
J. Electrochem. En. Conv. Stor. May 2016, 13(2): 021001 (7 pages)
Published Online: September 8, 2016
Article history
Received:
February 5, 2016
Revised:
August 16, 2016
Citation
Wang, C., Lin Chen, Z., Wen Tao, A., and Zhang, H. (September 8, 2016). "Optimization of Pt–Ni Alloy Catalysts Synthesized by Potentiostatic Electrodeposition for Cathode in PEMFC." ASME. J. Electrochem. En. Conv. Stor. May 2016; 13(2): 021001. https://doi.org/10.1115/1.4034482
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