Journal
JOURNAL OF POWER SOURCES
Volume 196, Issue 4, Pages 1904-1908Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2010.09.072
Keywords
Chemical synthesis; Carbon nanospheres; Pt nanoparticles; Fuel cell
Funding
- NSFC [60976055]
- 3rd-211 Project [201005B1A0010339, S-09109]
- Chongqing University
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Carbon nanospheres with diameters similar to 200 nm have been synthesized from glucose at 200 degrees C and normal atmosphere by a novel composite-molten-salt (CMS) method Pt nanoparticles supported on those carbon nanospheres are used for methanol and ethanol electro-oxidation in alkaline media Experimental results demonstrate that in comparison with the carbon black or hydrothermally-synthesized carbon nanosphere support CMS carbon-nanosphere-supported Pt electrocatalyst shows an enhanced efficiency for both methanol and ethanol electro-oxidation in terms of electrode conductivity electrochemically active surface oxidation peak current density and onset potential This enhancement is considered to be not only due to the high carbonization of the CMS synthesized carbon nanospheres but also due to the formation of a porous structure by the carbon nanospheres which significantly reduces the liquid sealing effect allowing efficient gas diffusion (c) 2010 Elsevier B V All rights reserved
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