Journal
CRYSTENGCOMM
Volume 14, Issue 20, Pages 6639-6646Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ce25498k
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Funding
- National Natural Science Foundation of China [61176004]
- Science and Technology Breakthrough Program of Henan province [112300410094]
- Natural Science Foundation of Education Department of Henan Province [2011A150017, 2010A430012]
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Mesocrystalline Cu2O hollow nanocubes (MCHNs) were successfully prepared by a facile reduction reaction under room temperature. CuCl2 played a dual role as both copper source and morphology controlling reagent for the oriented aggregation of primary Cu2O crystallites toward MCHNs. Due to the high crystallinity and high specific surface area, the as-prepared MCHNs exhibited high electrocatalytic activity for the reduction of hydrogen peroxide (H2O2) and oxidation of glucose. The non-enzymatic amperometric biosensors based on the MCHNs demonstrated a detection limit of 1.03 mu M and a sensitivity of 156.6 mu A mM(-1) for H2O2, as well as a detection limit of 0.87 mu M and sensitivity of 52.5 mu A mM(-1) for glucose. The high sensitivities and anti-interference ability made the MCHNs a promising material in non-enzymatic biosensors.
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