New Methods to Characterize the Surface and Interface Acid–Base Properties of Some Hydrocarbons by Inverse Gas Chromatography

Hamieh, Tayssir; Abbasian, A.; Farshchi, Negin

doi:10.1007/s10337-020-03878-z

Cited by 2 publications

(3 citation statements)

References 43 publications

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“…Furthermore, the dispersive component of the surface tension of the probe γ l d and the surface area of molecules allowed calculating the surface energy of the solid by using the Fowkes relation where N is Avogadro’s number and a is the surface area of one adsorbed molecule on the solid. − γ s d was also determined by using the Dorris and Gray relation and Hamieh model. − …”

Section: Methodsmentioning

confidence: 96%

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Surface Thermal Behavior and RT CO Gas Sensing Application of an Oligoacenaphthylene with p-Hydroxyphenylacetic Acid Composite

et al. 2022

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The current work describes room-temperature gas sensing performances using an oligoacenaphthylene (OAN)/p-hydroxyphenylacetic acid (p-HPA) composite. Based on inverse gas chromatography (IGC), the London dispersive surface energy γ s d is calculated by using 14 representative models. Even when the γ s d values of both OAN and the OAN/p-HPA composite are decreased as the temperature increases, the surface of OAN shows a higher value than that of the composite. The Gibbs surface free energy values of both are decreased with an increasing temperature. In our results, higher Lewis basic characters are observed in OAN and the OAN/p-HPA composite and the OAN/p-HPA surface exhibits a higher basicity compared to OAN. Because of the presence of phenolic groups in the OAN/p-HPA composite, the more important basic character drives a significant CO gas sensing ability with a sensitivity of 8.96% and good cycling stability as compared to the pristine counterparts. It is expected that the current study sheds light on a new pathway to exploring polymer composite materials for futuristic diverse and multiple applications, including IGC and gas sensor applications.

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Section: Methodsmentioning

confidence: 96%

“… 36 − 38 γ s d was also determined by using the Dorris and Gray relation 16 and Hamieh model. 41 − 43…”

Section: Methodsmentioning

confidence: 99%

Surface Thermal Behavior and RT CO Gas Sensing Application of an Oligoacenaphthylene with p-Hydroxyphenylacetic Acid Composite

et al. 2022

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“…This situation is due to the interactions that occur between probes and surfaces that do not have dispersive and entropic interactions. These values are calculated as follows [51,52]:…”

Section: Surface Propertiesmentioning

confidence: 99%

Evaluation of the surface properties of 4-(Decyloxy) benzoic acid liquid crystal and its use in structural isomer separation

2021

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The selectivity of 4-(Decyloxy) benzoic acid (DBA) liquid crystal in surface adsorption region (303.2 -328.2 K) and thermodynamic region (423.2 -433.2 K) was investigated by inverse gas chromatography at infinite dilution (IGC-ID). The selectivity parameters of the structural isomer series named butyl acetate, butyl alcohol and amyl alcohol series were calculated for the DBA using IGC-ID technique. Additionally, the surface properties including dispersive surface energy (γ S D ), free energy (∆G A S ), enthalpy (∆H A S ), and acidity-basicity constants were calculated with net retention volumes obtained from IGC-ID experiment results. When the ∆H A S and ∆G A S constants, DBA surface was found to be an acidic character (K D /K A ≅ 0.89).

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New Methods to Characterize the Surface and Interface Acid–Base Properties of Some Hydrocarbons by Inverse Gas Chromatography

Cited by 2 publications

References 43 publications

Surface Thermal Behavior and RT CO Gas Sensing Application of an Oligoacenaphthylene with p-Hydroxyphenylacetic Acid Composite

Surface Thermal Behavior and RT CO Gas Sensing Application of an Oligoacenaphthylene with p-Hydroxyphenylacetic Acid Composite

Evaluation of the surface properties of 4-(Decyloxy) benzoic acid liquid crystal and its use in structural isomer separation

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