Gold sol,Nano-gold,Borohydride,Full cell,Electrocatalyst
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New Carbon Materials 2011, 26(6) 417-421 DOI:     ISSN: 1007-8827 CN: 14-1116/TQ
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Preparation of nano Au/C catalysts and their performance as a direct borohydride fuel cell electrode
[J]. 新型炭材料, 2011,26(6): 417-421')" href="#">Cite This Article
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Keywords
Gold solzz')" href="#">line-height: 150%">Gold sol
Nano-gold
Borohydride
Full cell
Electrocatalyst
Authors
PubMed

Preparation of nano Au/C catalysts and their performance as a direct borohydride fuel cell electrode

YANG Zi-qin,　ZHAO Peng-cheng,　XIE Zi-li

Research Institute of Chemical Defense, Beijing 100191, China

Abstract：

Au/C catalysts were prepared by immobilizing the gold sol having a mean particle size of 5.0 nm with a quite narrow size distribution on carbon nanotubes (CNTs), Vxc-72R or ECP 600JD carbon black. Electrocatalytic activities of different Au/C catalysts with and without acid treatment (first with concentrated HCl then with concentrated HNO3) for the carbon supports for BH-4 oxidation were investigated. The hydrophilicity of all carbon supports and the Brunauer-Emmett-Teller (BET) surface area of CNTs increased, but the BET surface area of Vxc-72R or ECP 600JD decreased after the acid treatment. The Au loading on the carbon supports was closely related to the BET surface area of the supports. Acid treatment of the carbon supports was also an important factor for improving the electrocatalytic activity of the catalysts. Au supported by the acid-treated ECP 600JD exhibited the best electrocatalystic activity for BH-4 oxidation as an anode catalyst for the direct sodium borohydride fuel cell.

Keywords： Gold solzz')" href="#"> line-height: 150%">Gold sol   Nano-gold   Borohydride   Full cell   Electrocatalyst
  
Received 2011-01-10 Revised 2011-05-05 Online:  
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About author: YANG Zi-qin(1973-), female, M.S., engaged in the research of the nanomaterials. 　　　　　　　　　　　　　　　　　　　　　Tel: +86-10-66748487, E-mail: smilefa2003@yahoo.com.cn
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