Facile synthesis cedar-like SnO2 hierarchical micro-nanostructures with improved formaldehyde gas sensing characteristics
| Autor: | Zhifang Li, Mingzhe Zhang, Qi Zhao, Zhiyang Wang, Bingxin Xiao, Tianye Yang, Hai Yu |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Nanostructure Annealing (metallurgy) Mechanical Engineering Metals and Alloys Formaldehyde Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Hydrothermal circulation 0104 chemical sciences chemistry.chemical_compound Reaction temperature chemistry Mechanics of Materials Materials Chemistry 0210 nano-technology High-resolution transmission electron microscopy |
| Zdroj: | Journal of Alloys and Compounds. 724:121-129 |
| ISSN: | 0925-8388 |
| Popis: | In this work, well-defined cedar-like SnO 2 hierarchical micro-nanostructures have been successfully synthesized through a facile low-temperature hydrothermal method. XRD, SEM, TEM and HRTEM were carried out to investigate morphology and structure of as-obtained products. The morphology can be tailored by modulating the reaction temperature and annealing temperature. It is observed that the cedar-like SnO 2 micro-nanostructure are composed of two parts: the “trunk” and “leaves”. The trunk is composed of a hexagonal-pyramid, and the leaves are constructed by numerous ordered triquetrous nanosheets. As-fabricated cedar-like SnO 2 micro-nanostructure based sensors exhibit fast response time ( |
| Databáze: | OpenAIRE |
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