Design of α-Fe 2 O 3 nanorods functionalized tubular NiO nanostructure for discriminating toluene molecules

Chen Wang; Tianshuang Wang; Boqun Wang; Xin Zhou; Xiaoyang Cheng; Peng Sun; Jie Zheng; Geyu Lu

doi:10.1038/srep26432

Design of α-Fe ₂ O ₃ nanorods functionalized tubular NiO nanostructure for discriminating toluene molecules

Chen Wang, Tianshuang Wang, Boqun Wang, Xin Zhou, Xiaoyang Cheng, Peng Sun, Jie Zheng, Geyu Lu^*

^*Corresponding author for this work

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

64 Citations (Scopus)

Abstract

A novel tubular NiO nanostructure was synthesized by a facile and low-cost hydrothermal strategy and then further functionalized by decorating α-Fe ₂ O ₃ nanorods. The images of electron microscopy indicated that the α-Fe ₂ O ₃ nanorods were assembled epitaxially on the surfaces of NiO nanotubes to form α-Fe 2 O 3 /NiO nanotubes. As a proof-of-concept demonstration of the function, gas sensing devices were fabricated from as-prepared α-Fe ₂ O ₃ /NiO nanotubes, and showed enhanced gas response and excellent selectivity toward toluene, giving a response of 8.8 to 5 ppm target gas, which was about 7.8 times higher than that of pure NiO nanotubes at 275 °C. The improved gas sensing performance of α-Fe ₂ O ₃ /NiO nanotubes could be attributed to the unique tubular morphology features, p-n heterojunctions and the synergetic behavior of α-Fe ₂ O ₂ and NiO.

Original language	English
Article number	26432
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep26432
Publication status	Published - 19 May 2016
Externally published	Yes

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@article{f848bf84ed414ca595c5dde91a0d4808,

title = "Design of α-Fe 2 O 3 nanorods functionalized tubular NiO nanostructure for discriminating toluene molecules",

abstract = "A novel tubular NiO nanostructure was synthesized by a facile and low-cost hydrothermal strategy and then further functionalized by decorating α-Fe 2 O 3 nanorods. The images of electron microscopy indicated that the α-Fe 2 O 3 nanorods were assembled epitaxially on the surfaces of NiO nanotubes to form α-Fe 2 O 3 /NiO nanotubes. As a proof-of-concept demonstration of the function, gas sensing devices were fabricated from as-prepared α-Fe 2 O 3 /NiO nanotubes, and showed enhanced gas response and excellent selectivity toward toluene, giving a response of 8.8 to 5 ppm target gas, which was about 7.8 times higher than that of pure NiO nanotubes at 275 °C. The improved gas sensing performance of α-Fe 2 O 3 /NiO nanotubes could be attributed to the unique tubular morphology features, p-n heterojunctions and the synergetic behavior of α-Fe 2 O 2 and NiO.",

author = "Chen Wang and Tianshuang Wang and Boqun Wang and Xin Zhou and Xiaoyang Cheng and Peng Sun and Jie Zheng and Geyu Lu",

year = "2016",

month = may,

day = "19",

doi = "10.1038/srep26432",

language = "English",

volume = "6",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature Research",

}

TY - JOUR

T1 - Design of α-Fe 2 O 3 nanorods functionalized tubular NiO nanostructure for discriminating toluene molecules

AU - Wang, Chen

AU - Wang, Tianshuang

AU - Wang, Boqun

AU - Zhou, Xin

AU - Cheng, Xiaoyang

AU - Sun, Peng

AU - Zheng, Jie

AU - Lu, Geyu

PY - 2016/5/19

Y1 - 2016/5/19

N2 - A novel tubular NiO nanostructure was synthesized by a facile and low-cost hydrothermal strategy and then further functionalized by decorating α-Fe 2 O 3 nanorods. The images of electron microscopy indicated that the α-Fe 2 O 3 nanorods were assembled epitaxially on the surfaces of NiO nanotubes to form α-Fe 2 O 3 /NiO nanotubes. As a proof-of-concept demonstration of the function, gas sensing devices were fabricated from as-prepared α-Fe 2 O 3 /NiO nanotubes, and showed enhanced gas response and excellent selectivity toward toluene, giving a response of 8.8 to 5 ppm target gas, which was about 7.8 times higher than that of pure NiO nanotubes at 275 °C. The improved gas sensing performance of α-Fe 2 O 3 /NiO nanotubes could be attributed to the unique tubular morphology features, p-n heterojunctions and the synergetic behavior of α-Fe 2 O 2 and NiO.

AB - A novel tubular NiO nanostructure was synthesized by a facile and low-cost hydrothermal strategy and then further functionalized by decorating α-Fe 2 O 3 nanorods. The images of electron microscopy indicated that the α-Fe 2 O 3 nanorods were assembled epitaxially on the surfaces of NiO nanotubes to form α-Fe 2 O 3 /NiO nanotubes. As a proof-of-concept demonstration of the function, gas sensing devices were fabricated from as-prepared α-Fe 2 O 3 /NiO nanotubes, and showed enhanced gas response and excellent selectivity toward toluene, giving a response of 8.8 to 5 ppm target gas, which was about 7.8 times higher than that of pure NiO nanotubes at 275 °C. The improved gas sensing performance of α-Fe 2 O 3 /NiO nanotubes could be attributed to the unique tubular morphology features, p-n heterojunctions and the synergetic behavior of α-Fe 2 O 2 and NiO.

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000376077600002

UR - https://openalex.org/W2400268522

U2 - 10.1038/srep26432

DO - 10.1038/srep26432

M3 - Journal Article

SN - 2045-2322

VL - 6

JO - Scientific Reports

JF - Scientific Reports

M1 - 26432

ER -

Design of α-Fe ₂ O ₃ nanorods functionalized tubular NiO nanostructure for discriminating toluene molecules

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