Citation: ZHANG Jun-Min, TAN Zhi-Long, WANG Chuan-Jun, BI Jun, YI Wei, SHENG Yue, GUAN Wei-Ming, WEN Ming. Effect of Carbon Support Pretreatment on Structure and Performance of Pt/C Electrocatalysts[J]. Chinese Journal of Inorganic Chemistry, ;2015, (1): 140-146. doi: 10.11862/CJIC.2015.022 shu

Effect of Carbon Support Pretreatment on Structure and Performance of Pt/C Electrocatalysts

1.
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China

Corresponding author: WEN Ming,
Received Date: 12 August 2014
Available Online: 20 October 2014
Fund Project: 国家地区科学基金(No.51262015) (No.51262015)云南省基金(No.2011FB125)资助项目. (No.2011FB125)

Pt/C catalysts were prepared using a new modified polyol method with different heat treatment temperatures of Vulcan XC-72 carbon support. The oxygen containing functional group and the specific surface area of carbon black were characterized by pH meter and physical adsorption instrument. The composition, morphology and the electrochemical properties of the Pt/C catalyst were characterized by coupled plasma atomic emission spectroscopy, Transmission electron microscopy, X-ray diffraction and cyclic voltammograms, respectively. The results indicate that the Pt/C catalyst with 400 ℃ heat treatment for carbon black has an electrochemical specific surface area of 83 m²·g^-1, and the quality of the current density of 49.03 A·g^-1, while the corresponding parameters for imported commercial JM 20% Pt/C catalyst are 77 m²·g^-1 and 11.13 A·g^-1, respectively. The Pt loading in the present work is decreased by 3wt%~4wt% and the electric catalytic activity for the catalyst obtained in this work is better than that of commercial JM 20% Pt/C catalyst.
- catalysis;catalysts;Pt/C;carbon black;microstructure
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沈阳化工大学材料科学与工程学院沈阳 110142