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Preparation and electrocatalytic properties of triuranium octoxide supported on reduced graphene oxide
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  • 作者：Dongliang Gao ; Zhenyu Zhang ; Li Ding ; Juan Yang ; Yan Li
  • 关键词：triuranium octoxide ; reduced graphene oxides ; oxygen reduction reaction ; electrocatalysis
  • 刊名：Nano Research
  • 出版年：2015
  • 出版时间：February 2015
  • 年：2015
  • 卷：8
  • 期：2
  • 页码：546-553
  • 全文大小：1,513 KB
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文摘
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 ?.9 at ?.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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