Novel sea urchin-like hollow core-shell SnO2 superstructures: Facile synthesis and excellent ethanol sensing performance

Shunqiang Liu; Mingjiang Xie; Yanxing Li; Xuefeng Guo; Weijie Ji; Weiping Ding; Chak Tong AU

doi:10.1016/j.snb.2010.09.015

Novel sea urchin-like hollow core-shell SnO₂ superstructures: Facile synthesis and excellent ethanol sensing performance

Shunqiang Liu
, Mingjiang Xie
, Yanxing Li
, Xuefeng Guo^*
, Weijie Ji
, Weiping Ding
, Chak Tong AU

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

64 Citations (Scopus)

Abstract

Novel hierarchical sea urchin-like hollow core-shell SnO₂ superstructures have been fabricated by a template-free hydrothermal method, based on an inside-out Ostwald ripening mechanism. For comparison, hollow SnO₂ spheres were also prepared. It is found that the sea urchin-like hollow core-shell SnO₂ superstructures exhibit nearly three times better response to ethanol than the hollow SnO₂ spheres. The superior sensing performance is plausibly originated from the unique hierarchical core-shell structure with the nano-sized spikes (5-15 nm in diameter) on the shells.

Original language	English
Pages (from-to)	229-235
Number of pages	7
Journal	Sensors and Actuators B: Chemical
Volume	151
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2010.09.015
Publication status	Published - 26 Nov 2010

User-Defined Keywords

Gas sensor
Ostwald ripening
Superstructure
Tin dioxide
Urchin

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10.1016/j.snb.2010.09.015

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title = "Novel sea urchin-like hollow core-shell SnO2 superstructures: Facile synthesis and excellent ethanol sensing performance",

abstract = "Novel hierarchical sea urchin-like hollow core-shell SnO2 superstructures have been fabricated by a template-free hydrothermal method, based on an inside-out Ostwald ripening mechanism. For comparison, hollow SnO2 spheres were also prepared. It is found that the sea urchin-like hollow core-shell SnO2 superstructures exhibit nearly three times better response to ethanol than the hollow SnO2 spheres. The superior sensing performance is plausibly originated from the unique hierarchical core-shell structure with the nano-sized spikes (5-15 nm in diameter) on the shells.",

keywords = "Gas sensor, Ostwald ripening, Superstructure, Tin dioxide, Urchin",

author = "Shunqiang Liu and Mingjiang Xie and Yanxing Li and Xuefeng Guo and Weijie Ji and Weiping Ding and AU, \{Chak Tong\}",

note = "The supports from the Natural Science Foundation of China (20403008, 20773062) and the National Basic Research Program of China (973 Program) (2007CB936302) are gratefully acknowledged.",

year = "2010",

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doi = "10.1016/j.snb.2010.09.015",

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T2 - Facile synthesis and excellent ethanol sensing performance

AU - Liu, Shunqiang

AU - Xie, Mingjiang

AU - Li, Yanxing

AU - Guo, Xuefeng

AU - Ji, Weijie

AU - Ding, Weiping

AU - AU, Chak Tong

N1 - The supports from the Natural Science Foundation of China (20403008, 20773062) and the National Basic Research Program of China (973 Program) (2007CB936302) are gratefully acknowledged.

PY - 2010/11/26

Y1 - 2010/11/26

N2 - Novel hierarchical sea urchin-like hollow core-shell SnO2 superstructures have been fabricated by a template-free hydrothermal method, based on an inside-out Ostwald ripening mechanism. For comparison, hollow SnO2 spheres were also prepared. It is found that the sea urchin-like hollow core-shell SnO2 superstructures exhibit nearly three times better response to ethanol than the hollow SnO2 spheres. The superior sensing performance is plausibly originated from the unique hierarchical core-shell structure with the nano-sized spikes (5-15 nm in diameter) on the shells.

AB - Novel hierarchical sea urchin-like hollow core-shell SnO2 superstructures have been fabricated by a template-free hydrothermal method, based on an inside-out Ostwald ripening mechanism. For comparison, hollow SnO2 spheres were also prepared. It is found that the sea urchin-like hollow core-shell SnO2 superstructures exhibit nearly three times better response to ethanol than the hollow SnO2 spheres. The superior sensing performance is plausibly originated from the unique hierarchical core-shell structure with the nano-sized spikes (5-15 nm in diameter) on the shells.

KW - Gas sensor

KW - Ostwald ripening

KW - Superstructure

KW - Tin dioxide

KW - Urchin

UR - https://www.scopus.com/pages/publications/78049444568

U2 - 10.1016/j.snb.2010.09.015

DO - 10.1016/j.snb.2010.09.015

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SN - 0925-4005

VL - 151

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JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

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ER -

Novel sea urchin-like hollow core-shell SnO₂ superstructures: Facile synthesis and excellent ethanol sensing performance

Abstract

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