Micropored Sn-SnO2/carbon heterostructure nanofibers and their highly sensitive and selective C2H5OH gas sensing performance

Yan, Shuang; Wu, Qingsheng

doi:10.1016/j.snb.2014.08.062

Cited by 31 publications

(15 citation statements)

References 39 publications

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“…Therefore, most attention has been paid to the synthesis of nanostructured SnO 2 materials with the intension of tuning their properties for selectivity and sensitivity. 1D SnO 2 nanorods, 15 SnO 2 nanosheets, 16 SnO 2 nanoowers, 17 SnO 2 hollow spheres, 18 3D porous ower-like SnO 2 , 19 microporous Sn-SnO 2 / carbon heterostructures, 20 SnO 2 -carbon composite nanotubes, 21 hollow porous SnO 2 microcubes 22 etc. are a few different forms of SnO 2 nanostructures used in gas sensors.…”

Section: Introductionmentioning

confidence: 99%

Bio-green synthesis of Ni-doped tin oxide nanoparticles and its influence on gas sensing properties

et al. 2015

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Considering the potential applications of transition metal doped nanostructured materials and the advantages of novel, cost-effective and environmental friendly biosynthesis methods, Ni-doped SnO2 nanomaterials have been synthesized using remnant water (ideally kitchen waste) collected from soaked Bengal gram beans (Cicer arietinum L.) extract. The structural and optical properties of the Ni-doped SnO2 nanostructures were studied using various techniques such as UV/visible spectroscopy, FT-IR spectroscopy, X-ray powder diffraction (XRD), Field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The SEM, TEM images and XRD of biosynthesized Ni-SnO2 nanoparticles reveal uniform size distribution with the average size of 6 nm and confirmed the formation of rutile structure with space group (P42/mnm) and nanocrystalline nature of the products with spherical morphology.Subsequently, Ni-doped biosynthesized SnO2 nanoparticles were coated onto the glass substrate using doctor blade method to form thin films. The NO2 sensing properties of the materials have been studied in comparison with other gases.The reported gas sensing results are promising, which suggest that the Ni-dopant is a promising noble metal additives to fabricate low cost SnO2 based sensor.

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Section: Introductionmentioning

confidence: 99%

Bio-green synthesis of Ni-doped tin oxide nanoparticles and its influence on gas sensing properties

et al. 2015

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“…The enhancement in gas-sensing property on In 2 O 3 and SnO 2 composites may be mainly ascribed to heterostructure 35,36 . The SnO 2 has a lower Fermi level than that of In 2 O 3 , In 2 O 3 would receive electrons from SnO 2 , leading to the formation of an accumulation layer at the In 2 O 3 -SnO 2 interface, as shown in Fig.9 (b).…”

Section: Methodsmentioning

confidence: 98%

“…The enhancement in gas-sensing property on In 2 O 3 and SnO 2 composites may be mainly ascribed to heterostructure. 35,36 The SnO 2 has a lower Fermi level than that of In Besides, In 2 O 3 and SnO 2 were both active site, but each promoted different breakdown proles of the ethanol vapours being sensed. Because of their complementary catalytic activity (catalytic activity reaches an optimum level when the mass ratio of In 2 O 3 and SnO 2 is 2 : 1), the mixed oxides permitted a more complete breakdown of the ethanol vapours, leading to the observed enhancement in sensitivity.…”

Section: Gas Mechanismmentioning

confidence: 99%

Highly sensitive and humidity-independent ethanol sensors based on In₂O₃ nanoflower/SnO₂ nanoparticle composites

et al. 2015

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“…Sn-SnO 2 /PAN heterostructure NFs have been synthesized for ethanol sensing by electrospinning followed by annealing [ 244 ]. The Sn-SnO 2 /PAN NFs have an average diameter in the range of 350–400 nm after heat treatment.…”

Section: Reviewmentioning

confidence: 99%

“…The Sn-SnO 2 /PAN NFs have an average diameter in the range of 350–400 nm after heat treatment. The Sn-SnO 2 /PAN NFs show a maximum response of 46.15 at 220 °C toward 1000 ppm of ethanol compared with pure SnO 2 NFs with 15.16 at 280 °C [ 244 ].…”

Section: Reviewmentioning

confidence: 99%

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

Muhammad¹,

Motta²,

Shafiei³

2018

Beilstein J. Nanotechnol.

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Electrospun one-dimensional (1D) nanostructures are rapidly emerging as key enabling components in gas sensing due to their unique electrical, optical, magnetic, thermal, mechanical and chemical properties. 1D nanostructures have found applications in numerous areas, including healthcare, energy storage, biotechnology, environmental monitoring, and defence/security. Their enhanced specific surface area, superior mechanical properties, nanoporosity and improved surface characteristics (in particular, uniformity and stability) have made them important active materials for gas sensing applications. Such highly sensitive and selective elements can be embedded in sensor nodes for internet-of-things applications or in mobile systems for continuous monitoring of air pollutants and greenhouse gases as well as for monitoring the well-being and health in everyday life. Herein, we review recent developments of gas sensors based on electrospun 1D nanostructures in different sensing platforms, including optical, conductometric and acoustic resonators. After explaining the principle of electrospinning, we classify sensors based on the type of materials used as an active sensing layer, including polymers, metal oxide semiconductors, graphene, and their composites or their functionalized forms. The material properties of these electrospun fibers and their sensing performance toward different analytes are explained in detail and correlated to the benefits and limitations for every approach.

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Micropored Sn-SnO2/carbon heterostructure nanofibers and their highly sensitive and selective C2H5OH gas sensing performance

Cited by 31 publications

References 39 publications

Bio-green synthesis of Ni-doped tin oxide nanoparticles and its influence on gas sensing properties

Bio-green synthesis of Ni-doped tin oxide nanoparticles and its influence on gas sensing properties

Highly sensitive and humidity-independent ethanol sensors based on In₂O₃ nanoflower/SnO₂ nanoparticle composites

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

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Micropored Sn-SnO2/carbon heterostructure nanofibers and their highly sensitive and selective C2H5OH gas sensing performance

Cited by 31 publications

References 39 publications

Bio-green synthesis of Ni-doped tin oxide nanoparticles and its influence on gas sensing properties

Bio-green synthesis of Ni-doped tin oxide nanoparticles and its influence on gas sensing properties

Highly sensitive and humidity-independent ethanol sensors based on In2O3 nanoflower/SnO2 nanoparticle composites

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

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Highly sensitive and humidity-independent ethanol sensors based on In₂O₃ nanoflower/SnO₂ nanoparticle composites