Multi-Scaled Carbon Supported Platinum as a Stable Electrocatalyst for Oxygen Reduction Reaction

Authors

Yu-ping LI, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;University of Chinese Academy of Sciences, Beijing 100039, China;
Lu-hua JIANG, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;Follow
Su-li WANG, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
Gong-quan SUN, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;Follow

Corresponding Author

Lu-hua JIANG(sunshine@dicp.ac.cn);
Gong-quan SUN(gqsun@dicp.ac.cn)

Abstract

The stability of carbon supports is essential for electrocatalysts of fuel cells. Herein, the mesoporous carbon with the high graphitic degree (highly graphitic mesoporous carbon, HGMC) was synthesized by using resorcinol as the carbon precursor, SiO2 as the templates and urea as the reducing agent. The as-prepared HGMC was characterized by XRD, Raman spectroscopy, TEM, N2 adsorption. The stability of HGMC was evaluated by mimicking the start-up/shut-down conditions of fuel cells in a three-electrode system referring to the NREL standard. The obtained HGMC is of moderate surface area (187.4 m²•g^-1) and is chemically stable under potentiodynamic cycling as compared to the commercial Vulcan XC-72, while the high graphitic structure is adverse to the mass transport. To overcome the drawback of the HGMC in mass transportation, MWCNTs was introduced as a spacer to construct a 3D multi-scaled support. Compared to the single HGMC supported Pt catalyst and the commercial Pt/C-JM catalyst, the multi-scaled MSGC (the mixture of HGMC and MWCNTs with a mass ratio of 1:1) supported Pt catalyst displayed both enhanced electrochemical stability and significantly improved mass transportation for the oxygen reduction reaction, due to the stability and the multi-scaled structure of the carbon supports.

Graphical Abstract

Keywords

carbon support, platinum, oxygen reduction reaction, fuel cell

DOI Link

https://doi.org/10.13208/j.electrochem.151149

Publication Date

2016-04-28

Online Available Date

2016-04-28

Revised Date

2016-04-15

Received Date

2016-01-04

Recommended Citation

Yu-ping LI, Lu-hua JIANG, Su-li WANG, Gong-quan SUN. Multi-Scaled Carbon Supported Platinum as a Stable Electrocatalyst for Oxygen Reduction Reaction[J]. Journal of Electrochemistry, 2016 , 22(2): 135-146.
DOI: 10.13208/j.electrochem.151149
Available at: https://jelectrochem.xmu.edu.cn/journal/vol22/iss2/6