Citation: FU Rong, ZHENG Jun-Sheng, WANG Xi-Zhao, MA Jian-Xin. Effect of the Reduction Heat-Treatment Condition on the Performance of Pt-Fe/C Alloy Catalyst[J]. Acta Physico-Chimica Sinica, ;2011, 27(09): 2141-2147. doi: 10.3866/PKU.WHXB20110809 shu

Effect of the Reduction Heat-Treatment Condition on the Performance of Pt-Fe/C Alloy Catalyst

FU Rong ^1,2 ,
ZHENG Jun-Sheng ^1,3, ,
WANG Xi-Zhao ^1,3 ,
MA Jian-Xin ^1,3,

1.
1. Clean Energy Automotive Engineering Center, Tongji University (Jiading Campus), Shanghai 201804, P. R. China;
2. School of Resource and Environment Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China;
3. School of Automotive Studies, Tongji University (Jiading Campus), Shanghai 201804, P. R. China

Received Date: 1 April 2011
Available Online: 13 June 2011
Fund Project: 国家自然科学基金(21006073) (21006073)上海市青年科技启明星计划(11QA1407200) (11QA1407200)上海市重点学科(B303)资助项目 (B303)

Pt-Fe/C catalyst for proton exchange membrane fuel cell (PEMFC) was prepared by a pulse-microwave assisted chemical reduction heat-treatment synthesis method. The elemental content was tested by inductively coupled plasma (ICP). The microstructure and morphology of the as-prepared catalyst were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The electrocatalytic performance was measured by cyclic voltammetry (CV). The results indicate that pulse-microwave assisted chemical reduction heat-treatment synthesis is an efficient method for preparing PEMFC catalysts while the temperature and time of heat treatment greatly affect the size and activity of the Pt-Fe nanoparticles. For a heating temperature of 500 °C and a time of 3 h the Pt-Fe nanoparticles were uniform in size. Moreover, the Pt-Fe/C-500-3h alloy catalyst was highly dispersed on the surface of the carbon support and the TEM and XRD showed that the average Pt-Fe nanoparticle size was 1.8 nm. The electrochemical measurements show that the electrochemical surface area (ESA) of the catalyst was 55.14 m²·g^-1.
- Pulse-microwave assisted chemical reduction,
- Fuel cell,
- Pt-Fe/C catalyst
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