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Ionotropic Gelation of Chitosan for Next-Generation Composite Proton Conducting Flat Structures

(1) Background: Ionotropic gelation of cost-effective and eco-friendly biopolymer chitosan (Chit) is a novel and promising approach to the one-step synthesis of proton-conducting fuel cell bio-membranes.The method discovered by the author in 2011 and subsequently drowned among very few papers. This...

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Autor principal: Bocchetta, Patrizia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7180786/
https://www.ncbi.nlm.nih.gov/pubmed/32252314
http://dx.doi.org/10.3390/molecules25071632
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author Bocchetta, Patrizia
author_facet Bocchetta, Patrizia
author_sort Bocchetta, Patrizia
collection PubMed
description (1) Background: Ionotropic gelation of cost-effective and eco-friendly biopolymer chitosan (Chit) is a novel and promising approach to the one-step synthesis of proton-conducting fuel cell bio-membranes.The method discovered by the author in 2011 and subsequently drowned among very few papers. This work aimed to relaunch this method through clear and effective communication of new unpublished results emphasizing the key aspects of this topic for successful dissemination of the results and significant future developments. (2) Methods and results: The mechanism of in-situ ionotropic gelation of Chit on an alumina substrate by phosphotungtate anions (PWA(3−)) was discussed and analyzed. The study sheds light on the effect of prolonged post-treatment in phosphotungstic acid (PWA) solution on the obtained chitosan/phosphotungstate (Chit-PWA) flat structures. Methods used included combined structural (XRD), thermal-gravimetric (DTG), electrochemical (in-situ EIS), compositional (EDX),morphological analysis (SEM), as well as the performances in a low temperature H(2)/O(2) fuel cell(4) Conclusions: This contribution discloses novel possibilities aimed at increasing the impact of ionotropic gelation of chitosan on the scientific community working on the synthesis of novel proton conductive bio-composite membranes and structures.
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spelling pubmed-71807862020-05-01 Ionotropic Gelation of Chitosan for Next-Generation Composite Proton Conducting Flat Structures Bocchetta, Patrizia Molecules Article (1) Background: Ionotropic gelation of cost-effective and eco-friendly biopolymer chitosan (Chit) is a novel and promising approach to the one-step synthesis of proton-conducting fuel cell bio-membranes.The method discovered by the author in 2011 and subsequently drowned among very few papers. This work aimed to relaunch this method through clear and effective communication of new unpublished results emphasizing the key aspects of this topic for successful dissemination of the results and significant future developments. (2) Methods and results: The mechanism of in-situ ionotropic gelation of Chit on an alumina substrate by phosphotungtate anions (PWA(3−)) was discussed and analyzed. The study sheds light on the effect of prolonged post-treatment in phosphotungstic acid (PWA) solution on the obtained chitosan/phosphotungstate (Chit-PWA) flat structures. Methods used included combined structural (XRD), thermal-gravimetric (DTG), electrochemical (in-situ EIS), compositional (EDX),morphological analysis (SEM), as well as the performances in a low temperature H(2)/O(2) fuel cell(4) Conclusions: This contribution discloses novel possibilities aimed at increasing the impact of ionotropic gelation of chitosan on the scientific community working on the synthesis of novel proton conductive bio-composite membranes and structures. MDPI 2020-04-02 /pmc/articles/PMC7180786/ /pubmed/32252314 http://dx.doi.org/10.3390/molecules25071632 Text en © 2020 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bocchetta, Patrizia
Ionotropic Gelation of Chitosan for Next-Generation Composite Proton Conducting Flat Structures
title Ionotropic Gelation of Chitosan for Next-Generation Composite Proton Conducting Flat Structures
title_full Ionotropic Gelation of Chitosan for Next-Generation Composite Proton Conducting Flat Structures
title_fullStr Ionotropic Gelation of Chitosan for Next-Generation Composite Proton Conducting Flat Structures
title_full_unstemmed Ionotropic Gelation of Chitosan for Next-Generation Composite Proton Conducting Flat Structures
title_short Ionotropic Gelation of Chitosan for Next-Generation Composite Proton Conducting Flat Structures
title_sort ionotropic gelation of chitosan for next-generation composite proton conducting flat structures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7180786/
https://www.ncbi.nlm.nih.gov/pubmed/32252314
http://dx.doi.org/10.3390/molecules25071632
work_keys_str_mv AT bocchettapatrizia ionotropicgelationofchitosanfornextgenerationcompositeprotonconductingflatstructures