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Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper
The electrochemical activity of catalysts strongly depends on the uniform distribution of monodisperse Pt nanoparticles without aggregates. Here, we propose a new hydrolysis-assisted smearing method for Pt loading on a free-standing paper-type electrode. Polyacrylonitrile (PAN)-based nanofiber paper...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8169836/ https://www.ncbi.nlm.nih.gov/pubmed/34075101 http://dx.doi.org/10.1038/s41598-021-90536-5 |
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author | Kwon, Soon Yeol Ra, EunJu Jung, Dong Geon Kong, Seong Ho |
author_facet | Kwon, Soon Yeol Ra, EunJu Jung, Dong Geon Kong, Seong Ho |
author_sort | Kwon, Soon Yeol |
collection | PubMed |
description | The electrochemical activity of catalysts strongly depends on the uniform distribution of monodisperse Pt nanoparticles without aggregates. Here, we propose a new hydrolysis-assisted smearing method for Pt loading on a free-standing paper-type electrode. Polyacrylonitrile (PAN)-based nanofiber paper was used as the electrode, and it acted as a Pt support. Hydrolysis of the electrode tripled the number of active nucleation sites for Pt adsorption on the PAN nanofibers, thereby significantly enhancing the wettability of the nanofibers. This facilitated the uniform distribution of Pt nanoparticles without aggregate formation up to 40 wt% (about 0.8 mg/cm(2)) with a particle size of about 3 nm. The catalytic current of the hydrolyzed Pt electrode in CH(3)OH/H(2)SO(4) solution exceeded 213 mA/cm(2) Pt mg, which was considerably greater than the current was 148 mA/cm(2) Pt mg for an unhydrolyzed electrode. |
format | Online Article Text |
id | pubmed-8169836 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-81698362021-06-03 Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper Kwon, Soon Yeol Ra, EunJu Jung, Dong Geon Kong, Seong Ho Sci Rep Article The electrochemical activity of catalysts strongly depends on the uniform distribution of monodisperse Pt nanoparticles without aggregates. Here, we propose a new hydrolysis-assisted smearing method for Pt loading on a free-standing paper-type electrode. Polyacrylonitrile (PAN)-based nanofiber paper was used as the electrode, and it acted as a Pt support. Hydrolysis of the electrode tripled the number of active nucleation sites for Pt adsorption on the PAN nanofibers, thereby significantly enhancing the wettability of the nanofibers. This facilitated the uniform distribution of Pt nanoparticles without aggregate formation up to 40 wt% (about 0.8 mg/cm(2)) with a particle size of about 3 nm. The catalytic current of the hydrolyzed Pt electrode in CH(3)OH/H(2)SO(4) solution exceeded 213 mA/cm(2) Pt mg, which was considerably greater than the current was 148 mA/cm(2) Pt mg for an unhydrolyzed electrode. Nature Publishing Group UK 2021-06-01 /pmc/articles/PMC8169836/ /pubmed/34075101 http://dx.doi.org/10.1038/s41598-021-90536-5 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Kwon, Soon Yeol Ra, EunJu Jung, Dong Geon Kong, Seong Ho Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper |
title | Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper |
title_full | Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper |
title_fullStr | Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper |
title_full_unstemmed | Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper |
title_short | Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper |
title_sort | immobilization of pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8169836/ https://www.ncbi.nlm.nih.gov/pubmed/34075101 http://dx.doi.org/10.1038/s41598-021-90536-5 |
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