Highly sensitive acetone-sensing properties of Pt-decorated CuFe2O4 nanotubes prepared by electrospinning

Zhao, Changhui1,2,3; Lan, Weizong1; Gong, Huimin1; Bai, Jinglong4; Rarnachandran, Rajendran1,3; Liu, Sheng2; Wang, Fei1,3,5

2018-02-15

10.1016/j.ceramint.2017.11.032

CERAMICS INTERNATIONAL   影响因子和分区

0272-8842

1873-3956

Pristine and Pt-decorated copper ferrite nanotubes (Pt-CuFe(2)o(4) NTs, 0.1%, 0.5%, and 1.0%, mole percent) were prepared by a simple electrospinning method. The samples were characterized by X-ray diffraction, scanning electron microscope, and transmission electron microscope. Their gas-sensing properties were evaluated by a commercial CGS-4TPs system. Microscopic images showed that all samples consisted of well-defined nanotubes with diameter of 70-100 nm. Gas-sensing measurements revealed that the Pt-CuFe2O4 NTs had an improved acetone-sensing properties compared with pristine CuFe2O4 NTs. In particular, 0.5% Pt-CuFe2O4 NT-based sensor showed a high response (16.5 at 100 ppm), good selectivity, and long-term stability for acetone at 300 degrees C. In addition, more Pt dopants would have a greater effect on promoting the sensing properties of the CuFe2O4 NTs at high acetone concentrations. A gas -sensing enhancement mechanism of Pt-CuFe2O4 NT-based sensors was proposed, according to the catalytic oxidation process of acetone molecules, which could be due to the kinetic competition between Pt dopants and CuFe2O4 NTs.

Pt-decorated CuFe2O4 nanotubes Electrospinning Acetone sensor Gas-sensing mechanism

SCI ; EI

英语

第一 ; 通讯

Guangdong Natural Science Funds for Distinguished Young Scholar[2016A030306042]

Materials Science

Materials Science, Ceramics

WOS:000423891900031

ELSEVIER SCI LTD

20174604404007

Acetone ; Catalytic oxidation ; Chemical detection ; Chemical sensors ; Copper alloys ; Electrospinning ; Ferrite ; Gas detectors ; Iron compounds ; Magnetic materials ; Nanotubes ; Platinum ; Scanning electron microscopy ; Transmission electron microscopy ; X ray diffraction ; Yarn

Metallography:531.2 ; Copper Alloys:544.2 ; Precious Metals:547.1 ; Magnetic Materials:708.4 ; Nanotechnology:761 ; Chemistry:801 ; Chemical Agents and Basic Industrial Chemicals:803 ; Organic Compounds:804.1 ; Fiber Chemistry and Processing:819.3 ; Fiber Products:819.4 ; Accidents and Accident Prevention:914.1

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Hubei, Peoples R China
3.Shenzhen Key Lab 3rd Generat Semicond Devices, Shenzhen 518055, Peoples R China
4.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
5.Chinese Acad Sci, State Key Lab Transducer Technol, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China

Zhao, Changhui,Lan, Weizong,Gong, Huimin,et al. Highly sensitive acetone-sensing properties of Pt-decorated CuFe2O4 nanotubes prepared by electrospinning[J]. CERAMICS INTERNATIONAL,2018,44(3):2856-2863.

Zhao, Changhui.,Lan, Weizong.,Gong, Huimin.,Bai, Jinglong.,Rarnachandran, Rajendran.,...&Wang, Fei.(2018).Highly sensitive acetone-sensing properties of Pt-decorated CuFe2O4 nanotubes prepared by electrospinning.CERAMICS INTERNATIONAL,44(3),2856-2863.

Zhao, Changhui,et al."Highly sensitive acetone-sensing properties of Pt-decorated CuFe2O4 nanotubes prepared by electrospinning".CERAMICS INTERNATIONAL 44.3(2018):2856-2863.