期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 21, 期 32, 页码 11968-11972出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm11379h
关键词
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资金
- National Basic Research Program of China [2009CB623406]
- National Natural Science Foundation of China [20990222]
- Innovation Foundation for Doctoral Dissertation of Jiangsu Province [CX09B_133Z]
The morphology of a functional film, especially in the microscale or nanoscale, has been found to be critical for the performance of sensor materials. In this report, two shapes of PB crystals, microcubes and nanomastoids, were simultaneously formed using a self-assembly approach, induced by a weak electric field. This architecture exhibited an ultra-sensitive response in H2O2 detection (1922.3 mA M-1 cm(-2)). By consideration of the experimental results, a synergistic transmitting mechanism is provided to account for this high sensitivity, or the microcubes can fulfil the role of electron accumulation in electrocatalysis, and nanomastoids will fulfil the role of the main transport of electrons from the film to the Pt surface.
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