Journal
RSC ADVANCES
Volume 3, Issue 33, Pages 13712-13719Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra41098f
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Funding
- National Science Foundation of China (NSFC) [51272209]
- Youth Foundation of Shaanxi Province of China [2012JQ6007]
- Natural Science Foundation of Shaanxi Province [2011JZ008]
- Doctoral Fund of Ministry of Education of China [20120201120051]
- Fundamental Research Funds for the Central Universities
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We have demonstrated a facile strategy for synthesizing hierarchical CuO nanourchins (<300 nm) made from nanopetal building blocks by using a Cu2O-templated oxidative method. These hierarchical CuO nanourchins can serve as a promising electrode material and display an excellent response to glucose in comparison to interfering agents that normally co-exist in solution (such as ascorbic acid, uric acid and sodium chloride). The linear detection range is estimated to be from 50 mu M to 5 mM at + 0.57 V vs. Ag/AgCl (correlation coefficient = 0.9996), and the sensitivity is 1634 mu A mM(-1) cm(-2). The as-prepared hierarchical CuO nanourchins open up a new avenue for exploring the synthesis of highly sensitive CuO nanostructures for potential applications in the field of enzyme-free amperometric sensing of glucose. Significantly, it is anticipated that different nanostructured Cu2O templates can be utilized to synthesize new forms of CuO nanomaterial.
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