Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper

Abstract 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 nanofi...

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Autores principales:	Soon Yeol Kwon, EunJu Ra, Dong Geon Jung, Seong Ho Kong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a01d90c9140f4459afe9a2471a93aa39
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spelling	oai:doaj.org-article:a01d90c9140f4459afe9a2471a93aa392021-12-02T15:02:40ZImmobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper10.1038/s41598-021-90536-52045-2322https://doaj.org/article/a01d90c9140f4459afe9a2471a93aa392021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90536-5https://doaj.org/toc/2045-2322Abstract 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/cm2) with a particle size of about 3 nm. The catalytic current of the hydrolyzed Pt electrode in CH3OH/H2SO4 solution exceeded 213 mA/cm2 Pt mg, which was considerably greater than the current was 148 mA/cm2 Pt mg for an unhydrolyzed electrode.Soon Yeol KwonEunJu RaDong Geon JungSeong Ho KongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Soon Yeol Kwon EunJu Ra Dong Geon Jung Seong Ho Kong Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper
description	Abstract 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/cm2) with a particle size of about 3 nm. The catalytic current of the hydrolyzed Pt electrode in CH3OH/H2SO4 solution exceeded 213 mA/cm2 Pt mg, which was considerably greater than the current was 148 mA/cm2 Pt mg for an unhydrolyzed electrode.
format	article
author	Soon Yeol Kwon EunJu Ra Dong Geon Jung Seong Ho Kong
author_facet	Soon Yeol Kwon EunJu Ra Dong Geon Jung Seong Ho Kong
author_sort	Soon Yeol Kwon
title	Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper
title_short	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_sort	immobilization of pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a01d90c9140f4459afe9a2471a93aa39
work_keys_str_mv	AT soonyeolkwon immobilizationofptnanoparticlesonhydrolyzedpolyacrylonitrilebasednanofiberpaper AT eunjura immobilizationofptnanoparticlesonhydrolyzedpolyacrylonitrilebasednanofiberpaper AT donggeonjung immobilizationofptnanoparticlesonhydrolyzedpolyacrylonitrilebasednanofiberpaper AT seonghokong immobilizationofptnanoparticlesonhydrolyzedpolyacrylonitrilebasednanofiberpaper
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Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper

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