Nano Archive

Facile production of self-assembly hierarchical dumbbell-like CoOOH nanostructures and their room-temperature CO-gas-sensing properties

Geng, Baoyou and Zhan, Fangming and Jiang, Han and Xing, Zhoujing and Fang, Caihong (2008) Facile production of self-assembly hierarchical dumbbell-like CoOOH nanostructures and their room-temperature CO-gas-sensing properties. CRYSTAL GROWTH & DESIGN, 8 (10). pp. 3497-3500.

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Official URL: http://dx.doi.org/10.1021/cg8002367

Abstract

In this paper, we report a simple and novel coordination compound precursor route to synthesize the hierarchical dumbbell-like CoOOH nanostructures in high yield. A possible growth mechanism governing the formation of such nanostructures is discussed. The CO-gas-sensing properties of the as-synthesized nanostructures are investigated in detail. The dumbbell-like CoOOH nanostructures have a large active surface area of {110} facets, which can provide sufficient space for the interaction between CoOOH and the detected gases. As a result, the as-prepared dumbbell-like CoOOH nanostructures exhibit a superior sensitivity to CO at room temperature, as well as good reproducibility and short response/recovery times. The as-prepared CoOOH nanostructures could have potential applications in nanosensors.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Physical Science > Nano objects
Analytical Science > Nanotechnology for sensing and actuating
Material Science > Nanochemistry
ID Code:1193
Deposited By:Anuj Seth
Deposited On:16 Dec 2008 14:39
Last Modified:20 Jan 2009 10:14

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