Hierarchical Assembly of α-Fe2O3 Nanorods on SnO2 Nanosheet Arrays for Acetone Detection at Sub-ppm Level

Gong，Huimin1; Zhao，Changhui1; Wang，Fei2; Niu，Gaoqiang1; Zhang，Wei1

10.1109/NEMS.2019.8915666

2019-04-01

2474-3747

978-1-7281-1630-3

Proceedings of the 14th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2019

213-216

11-14 April 2019

Bangkok, Thailand

Institute of Electrical and Electronics Engineers Inc.

We report for the first time an acetone sensor based on novel SnO/α-FeO hybrid nanoarrays (HNAs), which may be used in breath acetone analysis. The SnO/α-FeO HNAs are synthesized through a cost-effective two-step liquid-phase process at low temperature. By applying an on-chip synthesis method, α-FeO nanorods are grown on the prefabricated SnO nanosheet arrays (NSAs). Gas-sensing properties of the SnO/α-FeO HNAs based sensor are investigated, which shows a greatly improved response to acetone (2.3, at 0.4 ppm) at sub-ppm level compared to pure SnO NSAs (1.2, at 0.4 ppm). The SnO/α-FeO HNAs based sensor also presents good selectivity and reproducibility to acetone, indicating its potential in practical application.

acetone sensor breath analysis nanoarrays α-Fe 2 O 3 SnO 2

第一

英语

EI

Science, Technology and Innovation Commission of Shenzhen Municipality[KQTD2015071710313656] ; [2016A030306042]

20195207894619

Cost effectiveness ; Hematite ; Nanorods ; Nanosensors ; Nanosheets ; Temperature

Minerals:482.2 ; Thermodynamics:641.1 ; Nanotechnology:761 ; Organic Compounds:804.1 ; Industrial Economics:911.2 ; Solid State Physics:933

2-s2.0-85076690503

Scopus

1.Southern University of Science and Technology,Department of Electrical and Electronic Engineering,Shenzhen,China
2.Southern University of Science and Technology,School of Microelectronics and Department of Electrical and Electronic Engineering,Shenzhen,China

Gong，Huimin,Zhao，Changhui,Wang，Fei,et al. Hierarchical Assembly of α-Fe2O3 Nanorods on SnO2 Nanosheet Arrays for Acetone Detection at Sub-ppm Level[C]:Institute of Electrical and Electronics Engineers Inc.,2019:213-216.