Journal
JOURNAL OF POWER SOURCES
Volume 221, Issue -, Pages 1-5Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2012.08.021
Keywords
Glucose oxidation; Alkaline fuel cell; MnO2/carbon; Gold; Nanocomposite
Funding
- Newcastle University
Ask authors/readers for more resources
Gold nanoparticles supported on MnO2-carbon nanocomposite (Au/MnO2-C) are synthesised as the catalyst for the anodic oxidation of glucose for use in a direct glucose alkaline fuel cell (DGAFC). Characterisation of the catalyst is carried out using physical and electrochemical methods. It is observed that gold nanoparticles are uniformly dispersed onto the MnO2-carbon nanocomposite support. Cyclic voltammetry shows that the prepared Au/MnO2-carbon catalysts exhibit higher electro-catalytic activity for glucose oxidation than that of commercial Pt/C and Au/C catalysts. A maximum power density, at 30 degrees C, of 1.1 mW cm(-2) is obtained using an Au/MnO2-C anode catalyst in DGAFC, which is higher than that of the commercial Au/C catalyst. The enhanced activity is attributed to a catalytic effect of MnO2 towards glucose oxidation. MnO2-C nanocomposite is a promising approach for reducing noble metal catalyst loading in addition to improving the catalytic activity of gold catalyst for glucose oxidation. (C) 2012 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available