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Development of a chemiresistor sensor based on polyaniline (PANI) nanofibers for detection of ammonia

Doctor of Philosophy in Material Engineering

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Bibliographic Details
Main Author: Zulkhairi, Zakaria
Other Authors: Mohd Noor, Ahmad, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2016
Subjects:
Polyanilines
Nanofibers
Ammonia
Nanostructured polyaniline (PANI)
Chemiresistor sensor
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72771
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spelling my.unimap-727712023-02-22T06:36:55Z Development of a chemiresistor sensor based on polyaniline (PANI) nanofibers for detection of ammonia Zulkhairi, Zakaria Mohd Noor, Ahmad, Dr. Polyanilines Nanofibers Ammonia Nanostructured polyaniline (PANI) Chemiresistor sensor Doctor of Philosophy in Material Engineering Nanostructured conducting polymers have received great attention due to their unique properties and promising applications in nanomaterials and nanotechnology. Among them, nanostructured polyaniline (PANI) has been extensively studied due to its ease of synthesis, excellent conductivity, environmental stability, large surface area, and highly reversible redox properties. This study reports a development of a chemiresistor sensor based on PANI nanofibers for ammonia detection. The studies are divided into two parts, which are the preparation of PANI nanofibers at various parameters and the development of chemiresistor sensor for the detection of ammonia. The polymerization time, chemical structure, surface morphology, and electrical properties of the synthesized PANI nanofibers were characterized using digital watch, FTIR, UV-Vis, FESEM, SEM, and 4-point probe, respectively. The preparation of PANI through interfacial (IP-PANI) and rapid mixing polymerization (RP-PANI) give not significant difference except the polymerization time which was 390 and 300s, respectively. FTIR spectra analysis was corresponded to well-doped PANI with the existence of peaks at 3286, 1580, 1490, 1218, 1146 and 620 cm-1, respectively, which are related to N-H, C=C, C-N, in-plane C-H, and out-plane C-H functional group. UV-Vis spectra of the PANI nanofibers showed that three band transitions were appeared at 340, 420, and 814 nm, respectively, which refered to π-π*, polaron-π*, and localized polaron band while the average diameter size of PANI nanofibers for both methods was ~ 70nm. The effect of hydrochloric acid (HCl) concentration and ammonium persulfate/aniline (APS/ANI) molar ratio on PANI nanofibers synthesized by rapid mixing polymerization were also studied. 2016 2021-11-10T04:13:45Z 2021-11-10T04:13:45Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72771 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Materials Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Polyanilines
Nanofibers
Ammonia
Nanostructured polyaniline (PANI)
Chemiresistor sensor
spellingShingle Polyanilines
Nanofibers
Ammonia
Nanostructured polyaniline (PANI)
Chemiresistor sensor
Zulkhairi, Zakaria
Development of a chemiresistor sensor based on polyaniline (PANI) nanofibers for detection of ammonia
description Doctor of Philosophy in Material Engineering
author2 Mohd Noor, Ahmad, Dr.
author_facet Mohd Noor, Ahmad, Dr.
Zulkhairi, Zakaria
format Thesis
author Zulkhairi, Zakaria
author_sort Zulkhairi, Zakaria
title Development of a chemiresistor sensor based on polyaniline (PANI) nanofibers for detection of ammonia
title_short Development of a chemiresistor sensor based on polyaniline (PANI) nanofibers for detection of ammonia
title_full Development of a chemiresistor sensor based on polyaniline (PANI) nanofibers for detection of ammonia
title_fullStr Development of a chemiresistor sensor based on polyaniline (PANI) nanofibers for detection of ammonia
title_full_unstemmed Development of a chemiresistor sensor based on polyaniline (PANI) nanofibers for detection of ammonia
title_sort development of a chemiresistor sensor based on polyaniline (pani) nanofibers for detection of ammonia
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72771
_version_ 1772813062772883456
score 13.222552

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