Effect of the sheet thickness of hierarchical SnO2 on the gas sensing performance

Wenlong Zhang; Wen Zeng; Bin Miao; Zhongchang Wang

doi:10.1016/j.apsusc.2015.07.149

Effect of the sheet thickness of hierarchical SnO₂ on the gas sensing performance

Wenlong Zhang, Wen Zeng, Bin Miao, Zhongchang Wang

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

A unique hierarchical SnO₂ nanoflower was successfully synthesized via a facile one-step hydrothermal method. The nanoflower was analyzed in detail using X ray diffraction, field-emission electron microscope and transmission electron microscope. It was found that the nanoflowers are all assembled from nanosheets. The nanosheet thickness could be precisely controlled by tuning the dosage of NaOH. Gas sensing tests demonstrated that the thickness of the sheet significantly affects the gas sensing performance. The improved gas sensing properties are attributed to the thinned petals as well as their pores and defects. These results show that the thickness and morphology of hierarchical nanostructures affect the functionality of gas sensors.

Original language	English
Pages (from-to)	631-637
Number of pages	7
Journal	Applied Surface Science
Volume	355
DOIs	https://doi.org/10.1016/j.apsusc.2015.07.149
Publication status	Published - 2015 Nov 15

Keywords

Assemble
Gas-sensing property
Nanoflower
Nanosheet
Thickness

ASJC Scopus subject areas

Surfaces, Coatings and Films

Access to Document

10.1016/j.apsusc.2015.07.149

Cite this

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title = "Effect of the sheet thickness of hierarchical SnO2 on the gas sensing performance",

abstract = "A unique hierarchical SnO2 nanoflower was successfully synthesized via a facile one-step hydrothermal method. The nanoflower was analyzed in detail using X ray diffraction, field-emission electron microscope and transmission electron microscope. It was found that the nanoflowers are all assembled from nanosheets. The nanosheet thickness could be precisely controlled by tuning the dosage of NaOH. Gas sensing tests demonstrated that the thickness of the sheet significantly affects the gas sensing performance. The improved gas sensing properties are attributed to the thinned petals as well as their pores and defects. These results show that the thickness and morphology of hierarchical nanostructures affect the functionality of gas sensors.",

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AU - Miao, Bin

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AB - A unique hierarchical SnO2 nanoflower was successfully synthesized via a facile one-step hydrothermal method. The nanoflower was analyzed in detail using X ray diffraction, field-emission electron microscope and transmission electron microscope. It was found that the nanoflowers are all assembled from nanosheets. The nanosheet thickness could be precisely controlled by tuning the dosage of NaOH. Gas sensing tests demonstrated that the thickness of the sheet significantly affects the gas sensing performance. The improved gas sensing properties are attributed to the thinned petals as well as their pores and defects. These results show that the thickness and morphology of hierarchical nanostructures affect the functionality of gas sensors.

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