Cargando…
Proton Conductivity through Polybenzimidazole Composite Membranes Containing Silica Nanofiber Mats
The quest for sustainable and more efficient energy-converting devices has been the focus of researchers′ efforts in the past decades. In this study, SiO(2) nanofiber mats were fabricated through an electrospinning process and later functionalized using silane chemistry to introduce different polar...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6680558/ https://www.ncbi.nlm.nih.gov/pubmed/31337094 http://dx.doi.org/10.3390/polym11071182 |
_version_ | 1783441527817633792 |
---|---|
author | Escorihuela, Jorge García-Bernabé, Abel Montero, Alvaro Andrio, Andreu Sahuquillo, Óscar Gimenez, Enrique Compañ, Vicente |
author_facet | Escorihuela, Jorge García-Bernabé, Abel Montero, Alvaro Andrio, Andreu Sahuquillo, Óscar Gimenez, Enrique Compañ, Vicente |
author_sort | Escorihuela, Jorge |
collection | PubMed |
description | The quest for sustainable and more efficient energy-converting devices has been the focus of researchers′ efforts in the past decades. In this study, SiO(2) nanofiber mats were fabricated through an electrospinning process and later functionalized using silane chemistry to introduce different polar groups −OH (neutral), −SO(3)H (acidic) and −NH(2) (basic). The modified nanofiber mats were embedded in PBI to fabricate mixed matrix membranes. The incorporation of these nanofiber mats in the PBI matrix showed an improvement in the chemical and thermal stability of the composite membranes. Proton conduction measurements show that PBI composite membranes containing nanofiber mats with basic groups showed higher proton conductivities, reaching values as high as 4 mS·cm(−1) at 200 °C. |
format | Online Article Text |
id | pubmed-6680558 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-66805582019-08-09 Proton Conductivity through Polybenzimidazole Composite Membranes Containing Silica Nanofiber Mats Escorihuela, Jorge García-Bernabé, Abel Montero, Alvaro Andrio, Andreu Sahuquillo, Óscar Gimenez, Enrique Compañ, Vicente Polymers (Basel) Article The quest for sustainable and more efficient energy-converting devices has been the focus of researchers′ efforts in the past decades. In this study, SiO(2) nanofiber mats were fabricated through an electrospinning process and later functionalized using silane chemistry to introduce different polar groups −OH (neutral), −SO(3)H (acidic) and −NH(2) (basic). The modified nanofiber mats were embedded in PBI to fabricate mixed matrix membranes. The incorporation of these nanofiber mats in the PBI matrix showed an improvement in the chemical and thermal stability of the composite membranes. Proton conduction measurements show that PBI composite membranes containing nanofiber mats with basic groups showed higher proton conductivities, reaching values as high as 4 mS·cm(−1) at 200 °C. MDPI 2019-07-14 /pmc/articles/PMC6680558/ /pubmed/31337094 http://dx.doi.org/10.3390/polym11071182 Text en © 2019 by the authors. 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 Escorihuela, Jorge García-Bernabé, Abel Montero, Alvaro Andrio, Andreu Sahuquillo, Óscar Gimenez, Enrique Compañ, Vicente Proton Conductivity through Polybenzimidazole Composite Membranes Containing Silica Nanofiber Mats |
title | Proton Conductivity through Polybenzimidazole Composite Membranes Containing Silica Nanofiber Mats |
title_full | Proton Conductivity through Polybenzimidazole Composite Membranes Containing Silica Nanofiber Mats |
title_fullStr | Proton Conductivity through Polybenzimidazole Composite Membranes Containing Silica Nanofiber Mats |
title_full_unstemmed | Proton Conductivity through Polybenzimidazole Composite Membranes Containing Silica Nanofiber Mats |
title_short | Proton Conductivity through Polybenzimidazole Composite Membranes Containing Silica Nanofiber Mats |
title_sort | proton conductivity through polybenzimidazole composite membranes containing silica nanofiber mats |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6680558/ https://www.ncbi.nlm.nih.gov/pubmed/31337094 http://dx.doi.org/10.3390/polym11071182 |
work_keys_str_mv | AT escorihuelajorge protonconductivitythroughpolybenzimidazolecompositemembranescontainingsilicananofibermats AT garciabernabeabel protonconductivitythroughpolybenzimidazolecompositemembranescontainingsilicananofibermats AT monteroalvaro protonconductivitythroughpolybenzimidazolecompositemembranescontainingsilicananofibermats AT andrioandreu protonconductivitythroughpolybenzimidazolecompositemembranescontainingsilicananofibermats AT sahuquillooscar protonconductivitythroughpolybenzimidazolecompositemembranescontainingsilicananofibermats AT gimenezenrique protonconductivitythroughpolybenzimidazolecompositemembranescontainingsilicananofibermats AT companvicente protonconductivitythroughpolybenzimidazolecompositemembranescontainingsilicananofibermats |