Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide

Abstract Au nanoparticles synthesized from colloidal techniques have the capability in many applications such as catalysis and sensing. Au nanoparticles function as both catalyst and highly sensitive SERS probe can be employed for sustainable and green catalytic process. However, capping ligands tha...

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Autores principales:	Kai Liu, Shuyue He, Lin Li, Yi Liu, Zhihua Huang, Tinghan Liu, Han Wu, Xiaolin Jiang, Kun Liu, Fei Tian
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f061a5b2ff0848ff9928daa8538fa3eb
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spelling	oai:doaj.org-article:f061a5b2ff0848ff9928daa8538fa3eb2021-12-02T15:38:23ZSpectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide10.1038/s41598-021-89235-y2045-2322https://doaj.org/article/f061a5b2ff0848ff9928daa8538fa3eb2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89235-yhttps://doaj.org/toc/2045-2322Abstract Au nanoparticles synthesized from colloidal techniques have the capability in many applications such as catalysis and sensing. Au nanoparticles function as both catalyst and highly sensitive SERS probe can be employed for sustainable and green catalytic process. However, capping ligands that are necessary to stabilize nanoparticles during synthesis are negative for catalytic activity. In this work, a simple effective mild thermal treatment to remove capping ligands meanwhile preserving the high SERS sensitivity of Au nanoparticles is reported. We show that under the optimal treatment conditions (250 °C for 2 h), 50 nm Au nanoparticles surfaces are free from any capping molecules. The catalytic activity of treated Au nanoparticles is studied through H2O2 decomposition, which proves that the treatment is favorable for catalytic performance improvement. A reaction intermediate during H2O2 decomposition is observed and identified.Kai LiuShuyue HeLin LiYi LiuZhihua HuangTinghan LiuHan WuXiaolin JiangKun LiuFei TianNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kai Liu Shuyue He Lin Li Yi Liu Zhihua Huang Tinghan Liu Han Wu Xiaolin Jiang Kun Liu Fei Tian Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide
description	Abstract Au nanoparticles synthesized from colloidal techniques have the capability in many applications such as catalysis and sensing. Au nanoparticles function as both catalyst and highly sensitive SERS probe can be employed for sustainable and green catalytic process. However, capping ligands that are necessary to stabilize nanoparticles during synthesis are negative for catalytic activity. In this work, a simple effective mild thermal treatment to remove capping ligands meanwhile preserving the high SERS sensitivity of Au nanoparticles is reported. We show that under the optimal treatment conditions (250 °C for 2 h), 50 nm Au nanoparticles surfaces are free from any capping molecules. The catalytic activity of treated Au nanoparticles is studied through H2O2 decomposition, which proves that the treatment is favorable for catalytic performance improvement. A reaction intermediate during H2O2 decomposition is observed and identified.
format	article
author	Kai Liu Shuyue He Lin Li Yi Liu Zhihua Huang Tinghan Liu Han Wu Xiaolin Jiang Kun Liu Fei Tian
author_facet	Kai Liu Shuyue He Lin Li Yi Liu Zhihua Huang Tinghan Liu Han Wu Xiaolin Jiang Kun Liu Fei Tian
author_sort	Kai Liu
title	Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide
title_short	Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide
title_full	Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide
title_fullStr	Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide
title_full_unstemmed	Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide
title_sort	spectroscopically clean au nanoparticles for catalytic decomposition of hydrogen peroxide
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f061a5b2ff0848ff9928daa8538fa3eb
work_keys_str_mv	AT kailiu spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT shuyuehe spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT linli spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT yiliu spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT zhihuahuang spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT tinghanliu spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT hanwu spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT xiaolinjiang spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT kunliu spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide AT feitian spectroscopicallycleanaunanoparticlesforcatalyticdecompositionofhydrogenperoxide
_version_	1718386208229294080

Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide

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