Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (01): 90-94.doi: 10.3866/PKU.WHXB20122890

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

Discharge Performance of Alkaline Sulfide Fuel Cells Using Non-Precious Anode Catalysts

FAN Yu-Qian, SHAO Hai-Bo, WANG Jian-Ming, LIU Liang, ZHANG Jian-Qing, CAO Chu-Nan   

  1. Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
  • Received:2011-07-26 Revised:2011-11-03 Published:2011-12-29
  • Contact: SHAO Hai-Bo E-mail:shaohb@zju.edu.cn
  • Supported by:

    The project was supported by the Zhejiang Provincial Natural Science Foundation of China (Y406192) and Zhejiang Provincial Top Key Discipline of New Materials and Process Engineering, China (20110928).

Abstract: The choice of fuel is an important issue influencing the selection of catalyst, cost, and commercialization of fuel cells. Electrochemically-active and low-cost fuels that can be oxidized by non-precious catalysts are an attractive objective. The native electrochemical activity and low cost of sulfide make it a suitable candidate. Fuel cells using alkaline sulfide as a fuel were developed. At room temperature, a single cell containing non-precious anode catalysts achieves a maximum power density of 12.3 mW·cm-2 with a current density of 42.8 mA·cm-2. Life tests show that alkaline sulfide fuel cells exhibit good durability. Ion chromatography detected considerable amounts of thiosulfate, sulfite, and sulfate. The deep oxidation and high capacity of sulfide make it an attractive fuel candidate. Compared with other fuels, sulfide has the advantages of being inexpensive, easy to transport, possesses high electrochemical activity, and can be catalyzed by non-precious catalysts.

Key words: Fuel cell, Alkaline sulfide, Low-cost catalyst, Deep oxidation, Electrochemistry

MSC2000: 

  • O646