期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 171, 期 -, 页码 1180-1185出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2012.06.063
关键词
NiO; Ring-like structures; Pd-decorated; CO sensing
资金
- Natural Science Foundation Committee (NSFC) [51102109]
- Project of Innovation Research Team of Jilin University [201004003]
- program for Chang Jiang Scholars and Innovative Research Team in University [IRT1017]
- Postdoctoral Science Foundation of China [2012M510878]
- program for Science and Technology Development [20110725]
- Graduate Innovation Fund of Jinlin University [20121108]
A new type of ring-like architecture with lamellar structure was prepared via a simple hydrothermal strategy. The phase purity, morphology, and structure of pristine and PdO-decorated NiO nanostructures are investigated. The characterizations reveal that the ring-like PdO-NiO are assembled by a large amount of interconnected nanosheets with a thickness of about 15 nm. To demonstrate the usage of such ring-like hybrid materials, gas sensors have been fabricated from the as-synthesized ring-like pristine NiO and PdO-NiO lamellar structures for CO detection. The PdO-NiO sensor exhibits significantly improved sensing performances in terms of higher response, lower working temperature, better selectivity, rapidder response time, and better reproducibility in comparison with pristine NiO. The effects of PdO decorating on the CO-sensing properties of ring-like NiO lamellar structure have been investigated. (c) 2012 Elsevier B.V. All rights reserved.
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