Amino groups-based polymers for CO2 detection; A comparison between two sensing mechanism models

Author

Serban, B. ; Kumar, Anakkat Koyilothu Sarin ; Brezeanu, M. ; Cobianu, C. ; Buiu, O. ; Bostan, C. ; Varachiu, N. ; Costea, S.

Author_Institution

Sensors & Wireless Lab. Bucharest, Honeywell Romania SRL, Bucharest, Romania

Volume

1

fYear

2011

fDate

17-19 Oct. 2011

Firstpage

127

Lastpage

130

Abstract

Two CO₂ sensing mechanisms, based on the Hard Soft Acids Bases (HSAB) and Bronsted-Lowry theories, are discussed and compared. They are evaluated by selecting amino groups-based coating layers, which are deposited on Surface Acoustic Wave (SAW) devices for CO₂ detection. Experimentally measured CO₂ sensitivities of different coating layers, such as polyallylamine (PAA), polyethyleneimine (PEI), nanocomposite matrix based on PAA-aminocarbon nanotubes and PEI-aminocarbon nanotubes, emeraldine, 4-sulfocalix[4]arene-doped polyaniline, matrix based emeraldine and carbonic anhydrase (PACA) are compared and evaluated according to their corresponding sensing mechanism.

Keywords

carbon compounds; chemical sensors; doping; insulating coatings; nanocomposites; nanosensors; nanotube devices; polymers; surface acoustic wave devices; Bronsted-Lowry concept; CO₂; SAW; coating layer sensitivity; detection process; doping; hard soft acid bases; nanocomposite matrix; nanotubes; polymers; sensing mechanism; surface acoustic wave devices; Carbon dioxide; Coatings; Nanotubes; Plastics; Sensors; Surface acoustic wave devices; Surface acoustic waves; Bronsted-Lowry; CO2 sensor; HSAB; SAW; carbonic anhydrase; polyaniline; polymer;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference (CAS), 2011 International

Conference_Location

Sinaia

ISSN

1545-827X

Print_ISBN

978-1-61284-173-1

Type

conf

DOI

10.1109/SMICND.2011.6095734

Filename

6095734