Direct Growth of Mono- and Multilayer Nanostructured Porous Films on Curved Surfaces and Their Application as Gas Sensors

Authors

  • F. Sun,

    1. Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, P.R. China
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  • W. Cai,

    1. Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, P.R. China
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  • Y. Li,

    1. Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, P.R. China
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  • L. Jia,

    1. Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, P.R. China
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  • F. Lu

    1. Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, P.R. China
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  • We are grateful to Ms. Meiyun Zhang, Dr. Xingjiu Huang, and Dr. Weihong Xu from the Hefei Institute of Intelligent Machines, Chinese Academy of Sciences, for experimental assistance in gas sensing measurements and for helpful discussions. This work was supported by the Natural Science Foundation of China (Grant No: 50 271 069), Natural Science Foundation of Anhui Province (Grant No: 050 440 902), and National Project for Basic Research (Grant No: 2006CB 300 402).

Abstract

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Polystyrene sphere colloidal monolayers can be stripped off in some precursor solutions. A simple and flexible method is presented to directly synthesize nanostructured ordered porous films on any desired substrate with flat or even curved surfaces and then construct nanostructured porous gas sensors on commercially supplied ceramic tubes (see Figure).

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