The Antoine equation of state: Rediscovering the potential of an almost forgotten expression for calculating volumetric properties of pure compounds

Araujo-López, Eduard; Lopez-Echeverry, Juan Sebastian; Reif-Acherman, Simón

doi:10.1016/j.ces.2017.10.051

Cited by 11 publications

(4 citation statements)

References 281 publications

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“…This is a very well‐known phenomenon mainly due to the strong absorption of light by the MWCNTs, which strongly compete with the light adsorption of the photoinitiator . We overcame this problem on the basis of our previous experience by adjusting parameters such as the radical photoinitiator content. In Figure the conversion curves as a function of irradiation time are reported for the same PEGDA‐based formulations containing MWCNTs, increasing the amount of radical photoinitiator from 1 wt% up to 3 wt%.…”

Section: Resultsmentioning

confidence: 99%

“…The concentration in part per million (ppm) of the volatile vapor was calculated using the following equation:

C (ppm) = (\frac{P^{*}}{P} \times \frac{f}{f + F}) \times 10^{6}

where P is the input air pressure (atmospheric pressure in this case), P * is the saturated partial pressure of the analyte, f and F are the mass flow rate of MFC of the pure dry air and MFC of the carrier, respectively. P * is evaluated by Antoine's equation as a function of the temperature and Antoine's component‐specific constants A, B, and C

P^{*} = 10^{(A normal normal - normal normal \frac{B}{C normal normal + normal normal T})}

…”

Section: Methodsmentioning

confidence: 99%

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A Flexible, Highly Sensitive, and Selective Chemiresistive Gas Sensor Obtained by In Situ Photopolymerization of an Acrylic Resin in the Presence of MWCNTs

Vigna

Fasoli

Cocuzza

et al. 2018

Macro Materials & Eng

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A new flexible polymeric gas sensor is developed by photocrosslinking poly(ethylene glycol) diacrylate resin (PEGDA) containing multi‐walled carbon nanotubes (MWCNTs) as conductive filler. The cured material shows a percolative threshold conductivity which changes when in contact with various gas analytes with different chemical and physical properties. The different behavior of the sensors toward the different gases is explained either on the basis of chemical affinity toward the polymeric matrix or due to the interactions that can occur between the analyte and the surface of the nanotubes in the case of the aromatic gas.

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Section: Resultsmentioning

confidence: 99%

“…The concentration in part per million (ppm) of the volatile vapor was calculated using the following equation:

C (ppm) = (\frac{P^{*}}{P} \times \frac{f}{f + F}) \times 10^{6}

P^{*} = 10^{(A normal normal - normal normal \frac{B}{C normal normal + normal normal T})}

…”

Section: Methodsmentioning

confidence: 99%

A Flexible, Highly Sensitive, and Selective Chemiresistive Gas Sensor Obtained by In Situ Photopolymerization of an Acrylic Resin in the Presence of MWCNTs

Vigna

Fasoli

Cocuzza

et al. 2018

Macro Materials & Eng

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“…The concentration of the VOC vapor is expressed as a percentage obtained from the ratio between the saturated vapor flow coming out of the bubbler and divided by the total flow reaching the detection chamber, using the following equation (eq ) where P is the input air pressure (atmospheric pressure in this case), P * is the saturated partial pressure of the analyte, and f and F are the mass flow rates of MFC of the pure dry air and MFC of the carrier, respectively. P * is calculated by Antoine’s equation (eq ) as a function of temperature and Antoine’s component-specific constants A , B , and C . − At room temperature the saturated vapor pressures of acetone, ethanol, NaClO, and NH 3 are 0.254, 0.061, 0.020, and 0.732 atm, respectively. Furthermore, the response time ( t res ) is defined as the time required for the saturation value to reach 90% of the total resistance change, whereas the recovery time ( t rec ) is the reverse of the response time related to the desorption of the gas.…”

Section: Methodsmentioning

confidence: 99%

Layered Double Hydroxide-Based Gas Sensors for VOC Detection at Room Temperature

et al. 2021

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Miniaturized low-cost sensors for volatile organic compounds (VOCs) have the potentiality to become a fundamental tool for indoor and outdoor air quality monitoring, to significantly improve everyday life. Layered double hydroxides (LDHs) belong to the class of anionic clays and are largely employed for NO x detection, while few results are reported on VOCs. In this work, a novel LDH coprecipitation method is proposed. For the first time, a study comparing four LDHs (ZnAl−Cl, ZnFe−Cl, ZnAl− NO 3 , and MgAl−NO 3 ) is carried out to investigate the sensing performances. As explored through several microscopy and spectroscopy analyses, LDHs show a morphology characterized by a large surface area and a three-dimensional hierarchical flowerlike architecture with micro-and nanopores that induce a fast diffusion and highly effective surface interaction of the target gases. The fabricated sensors, operating at room temperature, are able to reversibly and selectively detect acetone, ethanol, ammonia, and chlorine vapors, reaching significant sensing response values up to 6% at 21 °C. The results demonstrate that by changing the LDHs' composition, it is possible to modulate the sensitivity and selectivity of the sensor, helping the discrimination of different analytes, and the consequent integration on a sensor array paves the way for electronic nose development.

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“…Vapor pressures (VP) of the metal‐organic sources were estimated using Antoine formula as shown in Equation (),

\log ({VP}_{{Cp}_{2} Mn}) ([], Torr) = A - \frac{B}{T_{{Cp}_{2} Mn} ([], Kelvin)}

where A = 8 and B = 2012 for DEZn, and A = 5.93 and B = 2615 for Cp 2 Mn. [ 23–25 ] DEZn source bubbler was maintained at 5 °C to vaporize at 5 Torr with a flow rate of 1–2 sccm. O 2 flow rate was set to 150–300 sccm to maintain a VI/II ratio of 150.…”

Section: Mocvd Growth Of Znmnomentioning

confidence: 99%

Optical and Structural Properties of Manganese‐Doped Zinc Oxide Grown by Metal‐Organic Chemical Vapor Deposition

Saravade

Manzoor

Corda

et al. 2021

Advanced Optical Materials

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This systematic study investigates the optical properties and process−structure−property relationships of Mn‐doped zinc oxide (ZnMnO) grown by metal‐organic chemical vapor deposition with varying Mn‐doping concentration and growth conditions. ZnMnO exhibits a good crystal quality oriented in the (002) direction and contains intermixtures of zinc oxide (ZnO)‐like and manganese oxide (MnxOy)‐like phases. The material exhibits a direct energy absorption band‐edge and a reduction in bandgap with Mn‐doping. Photoluminescence studies show that Mn‐doping can simultaneously tailor broad green band luminescence and ultraviolet edge emissions. Post‐growth air‐annealing results in broad MnxOy‐related photoluminescence emissions at 3.3–4.5 eV. A further reduction in the absorption band‐edge is also observed with annealing. Results indicate that luminescence wavelengths and intensities, and absorption band‐edge can be tuned with the Mn‐doping process. This paper promotes a thorough understanding of defect centers in ZnO with transition metal doping and their interrelation with optical characteristics. The work provides a solid foundation for the development of optoelectronic devices, such as light emitting diodes, solar cells, lasers, and photodetectors using ZnO‐based materials.

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The Antoine equation of state: Rediscovering the potential of an almost forgotten expression for calculating volumetric properties of pure compounds

Cited by 11 publications

References 281 publications

A Flexible, Highly Sensitive, and Selective Chemiresistive Gas Sensor Obtained by In Situ Photopolymerization of an Acrylic Resin in the Presence of MWCNTs

A Flexible, Highly Sensitive, and Selective Chemiresistive Gas Sensor Obtained by In Situ Photopolymerization of an Acrylic Resin in the Presence of MWCNTs

Layered Double Hydroxide-Based Gas Sensors for VOC Detection at Room Temperature

Optical and Structural Properties of Manganese‐Doped Zinc Oxide Grown by Metal‐Organic Chemical Vapor Deposition

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