期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 143, 期 1, 页码 253-260出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2009.09.027
关键词
Self-assemble; Cu2O; Microstructures; Gas sensors
资金
- National Natural Science Foundation of China [20671003, 20971003]
- Key Project of Chinese Ministry of Education [209060]
- Education Department of Anhui Province [2006KJ006TD]
- Program for Innovative Research Team in Anhui Normal University
Novel self-assembled quasi-spherical cuprous oxide (Cu2O) microarchitectures with rough surface are produced by a facile microwave chemical route without any template or surfactant. The reaction temperature and concentration of Cu2+ play important roles to the morphology of the final products. For explaining the growth process, a possible nucleate-ripen-split-self-assemble mechanism is proposed. The gas-sensing properties of the as-synthesized self-assembled Cu2O microstructures are investigated in detail. The results indicate that the quasi-spherical Cu2O microstructures exhibit superior response to ethanol vapor and H2S, as well as short response/recovery times and good reproducibility. (C) 2009 Elsevier B.V. All rights reserved.
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