Cargando…

Synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices

For the past decade, much attention was focused on polysaccharide natural resources for various purposes. Throughout the works, several efforts were reported to prepare new function of chitosan by chemical modifications for renewable energy, such as fuel cell application. This paper focuses on synth...

Descripción completa

Detalles Bibliográficos
Autores principales: Rahman, Noriah Abdul, Abu Hanifah, Sharina, Mobarak, Nadhratun Naiim, Su’ait, Mohd Sukor, Ahmad, Azizan, Shyuan, Loh Kee, Khoon, Lee Tian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6377118/
https://www.ncbi.nlm.nih.gov/pubmed/30768616
http://dx.doi.org/10.1371/journal.pone.0212066
_version_ 1783395696415604736
author Rahman, Noriah Abdul
Abu Hanifah, Sharina
Mobarak, Nadhratun Naiim
Su’ait, Mohd Sukor
Ahmad, Azizan
Shyuan, Loh Kee
Khoon, Lee Tian
author_facet Rahman, Noriah Abdul
Abu Hanifah, Sharina
Mobarak, Nadhratun Naiim
Su’ait, Mohd Sukor
Ahmad, Azizan
Shyuan, Loh Kee
Khoon, Lee Tian
author_sort Rahman, Noriah Abdul
collection PubMed
description For the past decade, much attention was focused on polysaccharide natural resources for various purposes. Throughout the works, several efforts were reported to prepare new function of chitosan by chemical modifications for renewable energy, such as fuel cell application. This paper focuses on synthesis of the chitosan derivative, namely, O-nitrochitosan which was synthesized at various compositions of sodium hydroxide and reacted with nitric acid fume. Its potential as biopolymer electrolytes was studied. The substitution of nitro group was analyzed by using Attenuated Total Reflectance Fourier Transform Infra-Red (ATR-FTIR) analysis, Nuclear Magnetic Resonance (NMR) and Elemental Analysis (CHNS). The structure was characterized by X-ray Diffraction (XRD) and its thermal properties were examined by using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). Whereas, the ionic conductivity of the samples was analyzed by electrochemical impedance spectroscopy (EIS). From the IR spectrum results, the nitro group peaks of O-nitrochitosan, positioned at 1646 and 1355 cm(-1), were clearly seen for all pH media. At pH 6, O-nitrochitosan exhibited the highest degree of substitution at 0.74 when analyzed by CHNS analysis and NMR further proved that C-6 of glucosamine ring was shifted to the higher field. However, the thermal stability and glass transition temperatures were decreased with acidic condition. The highest ionic conductivity of O-nitrochitosan was obtained at ~10(−6) cm(-1). Overall, the electrochemical property of new O-nitrochitosan showed a good improvement as compared to chitosan and other chitosan derivatives. Hence, O-nitrochitosan is a promising biopolymer electrolyte and has the potential to be applied in electrochemical devices.
format Online
Article
Text
id pubmed-6377118
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-63771182019-03-01 Synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices Rahman, Noriah Abdul Abu Hanifah, Sharina Mobarak, Nadhratun Naiim Su’ait, Mohd Sukor Ahmad, Azizan Shyuan, Loh Kee Khoon, Lee Tian PLoS One Research Article For the past decade, much attention was focused on polysaccharide natural resources for various purposes. Throughout the works, several efforts were reported to prepare new function of chitosan by chemical modifications for renewable energy, such as fuel cell application. This paper focuses on synthesis of the chitosan derivative, namely, O-nitrochitosan which was synthesized at various compositions of sodium hydroxide and reacted with nitric acid fume. Its potential as biopolymer electrolytes was studied. The substitution of nitro group was analyzed by using Attenuated Total Reflectance Fourier Transform Infra-Red (ATR-FTIR) analysis, Nuclear Magnetic Resonance (NMR) and Elemental Analysis (CHNS). The structure was characterized by X-ray Diffraction (XRD) and its thermal properties were examined by using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). Whereas, the ionic conductivity of the samples was analyzed by electrochemical impedance spectroscopy (EIS). From the IR spectrum results, the nitro group peaks of O-nitrochitosan, positioned at 1646 and 1355 cm(-1), were clearly seen for all pH media. At pH 6, O-nitrochitosan exhibited the highest degree of substitution at 0.74 when analyzed by CHNS analysis and NMR further proved that C-6 of glucosamine ring was shifted to the higher field. However, the thermal stability and glass transition temperatures were decreased with acidic condition. The highest ionic conductivity of O-nitrochitosan was obtained at ~10(−6) cm(-1). Overall, the electrochemical property of new O-nitrochitosan showed a good improvement as compared to chitosan and other chitosan derivatives. Hence, O-nitrochitosan is a promising biopolymer electrolyte and has the potential to be applied in electrochemical devices. Public Library of Science 2019-02-15 /pmc/articles/PMC6377118/ /pubmed/30768616 http://dx.doi.org/10.1371/journal.pone.0212066 Text en © 2019 Rahman et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Rahman, Noriah Abdul
Abu Hanifah, Sharina
Mobarak, Nadhratun Naiim
Su’ait, Mohd Sukor
Ahmad, Azizan
Shyuan, Loh Kee
Khoon, Lee Tian
Synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices
title Synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices
title_full Synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices
title_fullStr Synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices
title_full_unstemmed Synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices
title_short Synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices
title_sort synthesis and characterizations of o-nitrochitosan based biopolymer electrolyte for electrochemical devices
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6377118/
https://www.ncbi.nlm.nih.gov/pubmed/30768616
http://dx.doi.org/10.1371/journal.pone.0212066
work_keys_str_mv AT rahmannoriahabdul synthesisandcharacterizationsofonitrochitosanbasedbiopolymerelectrolyteforelectrochemicaldevices
AT abuhanifahsharina synthesisandcharacterizationsofonitrochitosanbasedbiopolymerelectrolyteforelectrochemicaldevices
AT mobaraknadhratunnaiim synthesisandcharacterizationsofonitrochitosanbasedbiopolymerelectrolyteforelectrochemicaldevices
AT suaitmohdsukor synthesisandcharacterizationsofonitrochitosanbasedbiopolymerelectrolyteforelectrochemicaldevices
AT ahmadazizan synthesisandcharacterizationsofonitrochitosanbasedbiopolymerelectrolyteforelectrochemicaldevices
AT shyuanlohkee synthesisandcharacterizationsofonitrochitosanbasedbiopolymerelectrolyteforelectrochemicaldevices
AT khoonleetian synthesisandcharacterizationsofonitrochitosanbasedbiopolymerelectrolyteforelectrochemicaldevices