Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction

Quasi-homogeneous ligand-protected gold nanoclusters (Au NCs) with atomic precision and welldefined structure offer great opportunity for exploring the catalytic nature of nanogold catalysts at a molecular level. Herein, using real-time electrospray ionization mass spectrometry (ESI-MS), we have suc...

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Main Authors:	Nasaruddin, Ricca Rahman, Yao, Qiaofeng, Chen, Tiankai, Hülsey, Max J., Yan, Ning, Xie, Jianping
Format:	Article
Language:	English English English
Published:	Royal Society of Chemistry 2018
Subjects:	QD Chemistry TP155 Chemical engineering
Online Access:	http://irep.iium.edu.my/69163/ http://irep.iium.edu.my/69163/7/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural.pdf http://irep.iium.edu.my/69163/8/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural%20transformation%20SCOPUS.pdf http://irep.iium.edu.my/69163/9/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural%20transformation%20WOS.pdf

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author	Nasaruddin, Ricca Rahman Yao, Qiaofeng Chen, Tiankai Hülsey, Max J. Yan, Ning Xie, Jianping
author_facet	Nasaruddin, Ricca Rahman Yao, Qiaofeng Chen, Tiankai Hülsey, Max J. Yan, Ning Xie, Jianping
author_sort	Nasaruddin, Ricca Rahman
building	IIUM Repository
collection	Online Access
description	Quasi-homogeneous ligand-protected gold nanoclusters (Au NCs) with atomic precision and welldefined structure offer great opportunity for exploring the catalytic nature of nanogold catalysts at a molecular level. Herein, using real-time electrospray ionization mass spectrometry (ESI-MS), we have successfully identified the desorption and re-adsorption of p-mercaptobenzoic acid (p-MBA) ligands from Au25(p-MBA)18 NC catalysts during the hydrogenation of 4-nitrophenol in solution. This ligand dynamic (desorption and re-adsorption) would initiate structural transformation of Au25(p-MBA)18 NC catalysts during the reaction, forming a mixture of smaller Au NCs (Au23(p-MBA)16 as the major species) at the beginning of catalytic reaction, which could further be transformed into larger Au NCs (Au26(p-MBA)19 as the major species). The adsorption of hydrides (from NaBH4) is identified as the determining factor that could induce the ligand dynamic and structural transformation of NC catalysts. This study provides fundamental insights into the catalytic nature of Au NCs, including catalytic mechanism, active species and stability of Au NC catalysts during a catalytic reaction.
first_indexed	2025-11-14T17:19:04Z
format	Article
id	iium-69163
institution	International Islamic University Malaysia
institution_category	Local University
language	English English English
last_indexed	2025-11-14T17:19:04Z
publishDate	2018
publisher	Royal Society of Chemistry
recordtype	eprints
repository_type	Digital Repository
spelling	iium-691632019-01-29T08:38:03Z http://irep.iium.edu.my/69163/ Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction Nasaruddin, Ricca Rahman Yao, Qiaofeng Chen, Tiankai Hülsey, Max J. Yan, Ning Xie, Jianping QD Chemistry TP155 Chemical engineering Quasi-homogeneous ligand-protected gold nanoclusters (Au NCs) with atomic precision and welldefined structure offer great opportunity for exploring the catalytic nature of nanogold catalysts at a molecular level. Herein, using real-time electrospray ionization mass spectrometry (ESI-MS), we have successfully identified the desorption and re-adsorption of p-mercaptobenzoic acid (p-MBA) ligands from Au25(p-MBA)18 NC catalysts during the hydrogenation of 4-nitrophenol in solution. This ligand dynamic (desorption and re-adsorption) would initiate structural transformation of Au25(p-MBA)18 NC catalysts during the reaction, forming a mixture of smaller Au NCs (Au23(p-MBA)16 as the major species) at the beginning of catalytic reaction, which could further be transformed into larger Au NCs (Au26(p-MBA)19 as the major species). The adsorption of hydrides (from NaBH4) is identified as the determining factor that could induce the ligand dynamic and structural transformation of NC catalysts. This study provides fundamental insights into the catalytic nature of Au NCs, including catalytic mechanism, active species and stability of Au NC catalysts during a catalytic reaction. Royal Society of Chemistry 2018-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/69163/7/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural.pdf application/pdf en http://irep.iium.edu.my/69163/8/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural%20transformation%20SCOPUS.pdf application/pdf en http://irep.iium.edu.my/69163/9/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural%20transformation%20WOS.pdf Nasaruddin, Ricca Rahman and Yao, Qiaofeng and Chen, Tiankai and Hülsey, Max J. and Yan, Ning and Xie, Jianping (2018) Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction. Nanoscale, 10 (48). pp. 23113-23121. E-ISSN 2040-3372 https://pubs.rsc.org/en/content/articlelanding/2018/nr/c8nr07197g#!divAbstract 10.1039/C8NR07197G
spellingShingle	QD Chemistry TP155 Chemical engineering Nasaruddin, Ricca Rahman Yao, Qiaofeng Chen, Tiankai Hülsey, Max J. Yan, Ning Xie, Jianping Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction
title	Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction
title_full	Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction
title_fullStr	Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction
title_full_unstemmed	Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction
title_short	Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction
title_sort	hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction
topic	QD Chemistry TP155 Chemical engineering
url	http://irep.iium.edu.my/69163/ http://irep.iium.edu.my/69163/ http://irep.iium.edu.my/69163/ http://irep.iium.edu.my/69163/7/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural.pdf http://irep.iium.edu.my/69163/8/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural%20transformation%20SCOPUS.pdf http://irep.iium.edu.my/69163/9/69163%20Hydride-induced%20ligand%20dynamic%20and%20structural%20transformation%20WOS.pdf

Hydride-induced ligand dynamic and structural transformation of gold nanoclusters during a catalytic reaction

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