Journal
NANO RESEARCH
Volume 8, Issue 2, Pages 546-553Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-014-0668-8
Keywords
triuranium octoxide; reduced graphene oxides; oxygen reduction reaction; electrocatalysis
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Funding
- Ministry of Science and Technology of China [2011CB933003]
- National Natural Science Foundation of China [11179011, 21125103, 91333105]
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Triuranium octoxide-reduced graphene oxide (U3O8/rGO) hybrids have been prepared by a two-step solution-phase method. The presence of GO is essential in order to obtain pure phase U3O8. The U3O8/rGO hybrids exhibited excellent electrocatalytic activity for the oxygen reduction reaction. The electron transfer number was calculated to be similar to 3.9 at -0.7 V (vs. Ag/AgCl) from the slope of the Koutecky-Levich plots. The U3O8/rGO hybrids were more stable than commercial Pt/C catalysts. Furthermore, when methanol was present, the U3O8/rGO hybrids still retained high activity. In addition, the U3O8/rGO hybrids can also catalyze the reduction of hydrogen peroxide.
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