Silica nanofibers based impedance type humidity detector prepared on glass substrate

Batool, S. S.; Imran, Zahid; Israr-Qadir, Muhammad; Jamil-Rana, Sadaf; Usman, Muhammad; Jamil, Hira; Rafiq, M. A.; Hasan, M. M.; Nur, Omer; Willander, Magnus

doi:10.1016/j.vacuum.2012.06.016

Cited by 16 publications

(12 citation statements)

References 30 publications

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“…In most of the published papers, tetraethyl orthosilicate (TEOS) was used as the SiO 2 precursor. 12,25−36 Numerous carrying polymers were used, including poly(vinylpyrrolidone) (PVP), 25,30,31,33 poly(vinyl alcohol), 12,28,35 poly(ethylene oxide), 33 or Pluronic F127. 12,26,32 When combining the sol–gel method with electrospinning, there is no need of a carrying polymer.…”

Section: Introductionmentioning

confidence: 99%

“…26,27,29,36 The alcohol-based spun solutions usually contain ethanol and methanol with other solvents like dimethylformamide 36 or dimethyl sulfoxide. 33 The polymeric reaction of TEOS is driven and stabilized by hydrochloric acid (HCl), 26,33,37 acetic acid, 25,34,36 or H 3 PO 4 . 30 The specific surface area of fibers can be further increased by addition of a surfactant into the spun solution, for example, Pluronic F127.…”

Section: Introductionmentioning

confidence: 99%

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SiO₂ Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance

et al. 2017

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Facile and innovative route for large-scale synthesis of SiO 2 fibers with excellent textural properties and H 2 O adsorption performance is presented. At first, a three-dimensional network of SiO 2 precursor fibers was produced from tailored spun solutions (without any toxic elements and surfactants) by centrifugal spinning, which is a very modern fiber-synthesis technique, with numerous advantages over electrospinning. Upon thermal annealing of the precursor fibers, mesoporous amorphous SiO 2 fibers with an ultrahigh surface area of up to 824 m 2 /g and pore size distribution in the range of 2–10 nm were produced. Owing to the high number of OH groups available on the surface, the produced SiO 2 fibers showed significantly better performance in H 2 O adsorption compared to that of the reference silicagel.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

SiO₂ Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance

et al. 2017

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“…Over the last fifteen years, one-dimensional structures of simple oxides particularly titanium oxide (TiO 2 ) [ 1 , 2 , 3 , 4 ] and silicon oxide (SiO 2 ) have been particularly popular in the field of both scientific research and expected wide application possibilities [ 5 , 6 , 7 , 8 ]. Unlike other zero-dimensional, two-dimensional, or three-dimensional nanostructures, nanowires have two limited quantum directions resulting from their nanometer diameter due to which electrons can easily move in a precisely defined direction, which is determined by the length of a single nanowire.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of the Novel Type of Bimodal Ceramic Nanowires from Polymer and Composite Fibrous Mats

Tański

Matysiak

2018

Nanomaterials

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The purpose of this paper was to produce SiO2 and TiO2 nanowires via the electrospinning process from a polyvinylpyrrolidone (PVP)/Tetraethyl orthosilicate (TEOS)/Titanium (IV) butoxide (TNBT)/dimethylformamide (DMF) and ethanol (EtOH) solution. The as-obtained nanofibers were calcined at temperatures ranging from 400 °C to 600 °C in order to remove the organic phase. The one-dimensional ceramic nanostructures were studied using a scanning electron microscope (SEM) and a transmission electron microscope (TEM) to analyze the influence of the used temperature on the morphology and structures of the obtained ceramic nanomaterials. In order to examine the chemical structure of the nanowires, energy dispersive spectrometry (EDX) and Fourier-Transform Infrared spectroscopy (FTIR) were used. The optical property analysis was performed on the basis of UV-Vis spectra of absorbance as a function of the wavelength. Using the modified Swanepoel method, which the authors proposed and the recorded absorbance spectra allowed to determine the banded refractive index n, real n′ and imaginary k part of the refractive index as a function of the wavelength, complex dielectric permeability ε, and real and imaginary part εr and εi of the dielectric permeability as a function of the radiation energy of the produced ceramic nanowires.

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“…Among them, humidity sensors based on resistance or capacitance change induced by humidity variation are very popular due to their simple detection methods and relatively high measurement precision [1] [2]. However, the yield and reliability of both resistance-typed and capacitance-type humidity sensors are very low.…”

Section: Introductionmentioning

confidence: 99%

A humidity sensor based on quartz crystal microbalance using graphene oxide as a sensitive layer

Jin

Zhang

Feng

et al. 2017

Vacuum

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Silica nanofibers based impedance type humidity detector prepared on glass substrate

Cited by 16 publications

References 30 publications

SiO₂ Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance

SiO₂ Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance

Synthesis of the Novel Type of Bimodal Ceramic Nanowires from Polymer and Composite Fibrous Mats

A humidity sensor based on quartz crystal microbalance using graphene oxide as a sensitive layer

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Silica nanofibers based impedance type humidity detector prepared on glass substrate

Cited by 16 publications

References 30 publications

SiO2 Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance

SiO2 Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance

Synthesis of the Novel Type of Bimodal Ceramic Nanowires from Polymer and Composite Fibrous Mats

A humidity sensor based on quartz crystal microbalance using graphene oxide as a sensitive layer

Contact Info

Product

Resources

About

SiO₂ Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance

SiO₂ Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance