Tuning the accessibility and activity of Au25(SR)18 nanocluster catalysts through ligand engineering

Li, Jingguo and Nasaruddin, Ricca Rahman and Feng, Yan and Yang, Jun and Yan, Ning and Xie, Jianping (2016) Tuning the accessibility and activity of Au25(SR)18 nanocluster catalysts through ligand engineering. Chemistry A European Journal, 22. pp. 14816-14820. ISSN 0947-6539 E-ISSN 1521-3765

	PDF (Tuning the Accessibility and Activity of Au25(SR)18 Nanocluster Catalysts through Ligand Engineering - research article) - Published Version Restricted to Repository staff only Download (810kB) | Request a copy
	PDF (Tuning the Accessibility and Activity of Au25(SR)18 Nanocluster Catalysts through Ligand Engineering - supplementary document) - Published Version Restricted to Repository staff only Download (522kB) | Request a copy

Abstract

In this work, the effects of thiolate ligands (-SR, e.g., chain length and functional moiety) on the accessibility and catalytic activity of thiolate-protected gold nanoclusters (e.g., Au25(SR)18) for 4-nitrophenol hydrogenation is reported. The data suggest that Au25(SR)18 bearing a shorter alkyl chain shows a better accessibility to the substrates (shown by shorter induction time, t0) and a higher catalytic activity (shown by higher apparent reaction rate constant, kapp). The functional moiety of the ligands is another determinant factor, which clearly suggests that ligand engineering of Au25(SR)18 would be an efficient platform for fine-tuning its catalytic properties.

Item Type:	Article (Journal)
Additional Information:	8629/66300
Uncontrolled Keywords:	Gold Nanocluster, Ligand Engineering, Catalysis, 4-nitrophenol hydrogenation
Subjects:	Q Science > QD Chemistry T Technology > TP Chemical technology > TP155 Chemical engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering Kulliyyah of Engineering
Depositing User:	Dr Ricca Rahman Nasaruddin
Date Deposited:	12 Apr 2019 11:37
Last Modified:	12 Apr 2019 11:37
URI:	http://irep.iium.edu.my/id/eprint/66300

Actions (login required)

View Item