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

Praveen Kumar Basivi, Tayssir Hamieh, Kedhareswara Sairam Pasupuleti, Visweswara Rao Pasupuleti, Vempuluru Navakoteswara Rao, Moon-Deock Kim, Chang Woo Kim*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The current work describes room-temperature gas sensing perform-ances using an oligoacenaphthylene (OAN)/p-hydroxyphenylacetic acid (p-HPA) composite. Based on inverse gas chromatography (IGC), the London dispersive surface energy gamma sd is calculated by using 14 representative models. Even when the gamma sd 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.
Original languageEnglish
Pages (from-to)36307-36317
Number of pages11
JournalAcs omega
Volume7
Issue number41
Early online date1 Oct 2022
DOIs
Publication statusPublished - 18 Oct 2022

Keywords

  • CELLULOSE-ACETATE PROPIONATE
  • 4-HYDROXYPHENYLACETIC ACID
  • FREE-ENERGY
  • CHROMATOGRAPHY
  • SENSOR
  • DEGRADATION
  • NANOTUBES
  • POLYACENAPHTHYLENE
  • MECHANISM
  • POLYMERS

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