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将铂纳米颗粒固定在水解聚丙烯腈基纳米纤维纸上。

Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper.

作者信息

Kwon Soon Yeol, Ra EunJu, Jung Dong Geon, Kong Seong Ho

机构信息

School of Electronic and Electrical Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea.

Fineroute academy, Hwaseong, Gyunggi-do, 18505, Republic of Korea.

出版信息

Sci Rep. 2021 Jun 1;11(1):11501. doi: 10.1038/s41598-021-90536-5.

DOI:10.1038/s41598-021-90536-5
PMID:34075101
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8169836/
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/cm) with a particle size of about 3 nm. The catalytic current of the hydrolyzed Pt electrode in CHOH/HSO solution exceeded 213 mA/cm Pt mg, which was considerably greater than the current was 148 mA/cm Pt mg for an unhydrolyzed electrode.

摘要

催化剂的电化学活性强烈依赖于无团聚的单分散铂纳米颗粒的均匀分布。在此，我们提出一种新的水解辅助涂抹方法，用于在独立的纸型电极上负载铂。基于聚丙烯腈（PAN）的纳米纤维纸用作电极，并作为铂的载体。电极的水解使铂吸附在PAN纳米纤维上的活性成核位点数量增加了两倍，从而显著提高了纳米纤维的润湿性。这有助于铂纳米颗粒均匀分布，在不形成团聚的情况下，负载量可达40 wt%（约0.8 mg/cm），粒径约为3 nm。水解后的铂电极在CHOH/HSO溶液中的催化电流超过213 mA/cm Pt mg，这大大高于未水解电极的148 mA/cm Pt mg的电流。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/325f8f4f1915/41598_2021_90536_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/7c5bff9a5aeb/41598_2021_90536_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/ba191d2aafb1/41598_2021_90536_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/ec8c3cdd07a2/41598_2021_90536_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/7d7e1fa8166f/41598_2021_90536_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/c2f5be8c1425/41598_2021_90536_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/8319e083a7eb/41598_2021_90536_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/325f8f4f1915/41598_2021_90536_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/7c5bff9a5aeb/41598_2021_90536_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/ba191d2aafb1/41598_2021_90536_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/ec8c3cdd07a2/41598_2021_90536_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/7d7e1fa8166f/41598_2021_90536_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/c2f5be8c1425/41598_2021_90536_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/8319e083a7eb/41598_2021_90536_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8caa/8169836/325f8f4f1915/41598_2021_90536_Fig7_HTML.jpg

相似文献

[1]
Immobilization of Pt nanoparticles on hydrolyzed polyacrylonitrile-based nanofiber paper.

Sci Rep. 2021-6-1

[2]
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[10]
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引用本文的文献

[1]
Immobilization of Photocatalysts on Spider Silk-Based Membranes for Continuous Hydrogen Production.

ACS Omega. 2025-8-3

[2]
Advances in Electrostatic Spinning of Polymer Fibers Functionalized with Metal-Based Nanocrystals and Biomedical Applications.

Molecules. 2022-8-29

本文引用的文献

[1]
One-step green synthesis of antibacterial silver nanoparticles embedded in electrospun cyclodextrin nanofibers.

Carbohydr Polym. 2018-12-6

[2]
Surface Decoration of Pt Nanoparticles via ALD with TiO Protective Layer on Polymeric Nanofibers as Flexible and Reusable Heterogeneous Nanocatalysts.

Sci Rep. 2017-10-17

[3]
Ultramicropore formation in PAN/camphor-based carbon nanofiber paper.

Chem Commun (Camb). 2010-1-8

[4]
Enhanced adsorption of arsenate on the aminated fibers: sorption behavior and uptake mechanism.

Langmuir. 2008-10-7

[5]
Ordered nanoporous arrays of carbon supporting high dispersions of platinum nanoparticles.

Nature. 2001-7-12

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