Controllable synthesis and HCHO-sensing properties of In2O3 micro/nanotubes with different diameters

Autor:	Huimin Dou, Haixia Mei, Sen Liu, Tong Zhang, Lijie Wang, Rui Wang, Jing Cao, Hao Zhang, Teng Fei
Rok vydání:	2014
Předmět:	Small diameter Materials science Metals and Alloys Nanotechnology Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Recovery rate Materials Chemistry Electrical and Electronic Engineering Selectivity Large diameter Instrumentation Coaxial electrospinning
Zdroj:	Sensors and Actuators B: Chemical. 198:180-187
ISSN:	0925-4005
DOI:	10.1016/j.snb.2014.03.015
Popis:	In2O3 micro/nanotubes (MNTs) with different diameters are successfully synthesized by an effective and template-free coaxial electrospinning method. The diameters of the MNTs can be simply tailored by controlling the ratio of reactants. The HCHO sensing tests of as-prepared MNTs reveal that the samples possess high response value, fast response and recovery rate, and favorable selectivity. Moreover, compared with the large diameter (∼1 μm or ∼500 nm) In2O3 MNTs, the small diameter (∼100 nm) In2O3 MNTs exhibit highly enhanced sensing properties. The gas sensing mechanism of In2O3 MNTs has been discussed in detail. The promising HCHO-sensing properties enable In2O3 MNTs to be a competitive candidate for detecting poisonous HCHO in practice. The experiment also indicates that the coaxial electrospinning is an environmental friendly and easy method for constructing tubular structure of metal oxides with different diameters for various applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2fbc4dc8258c465acae4e3ed5ddf0eff https://doi.org/10.1016/j.snb.2014.03.015 Zobrazit plný text záznamu Full Text from ScienceDirect