NDLI: Ligand-free Gold Nanoparticles as a Reference Material for Kinetic Modelling of Catalytic Reduction of 4-Nitrophenol

Content Provider	Springer Nature Link
Author	Gu, Sasa Kaiser, Julian Marzun, Galina Ott, Andreas Lu, Yan Ballauff, Matthias Zaccone, Alessio Barcikowski, Stephan Wagener, Philipp
Copyright Year	2015
Abstract	The reduction of 4-nitrophenol by sodium borohydride is a common model reaction to test the catalytic activity of metal nanoparticles. As all reaction steps proceed solely on the surface of the metal nanoparticles (Langmuir–Hinshelwood model), ligand-coverage of metal nanoparticles impedes the merging of theory and experiment. Therefore we analyzed the catalytic activity of bare gold nanoparticles prepared by laser ablation in liquid without any stabilizers or ligands. The catalytic reaction is characterized by a full kinetic analysis including 4-hydroxylaminophenol as an intermediate species. Excellent agreement between theory and experiment is found. Moreover, the suspension of the nanoparticles remains stable. Hence, ligand-free nanoparticles can be used as a reference material for mechanistic studies of catalytic reactions. In addition, the analysis shows that gold nanoparticles synthesized by laser ablation are among the most active catalysts for this reaction.
Starting Page	1105
Ending Page	1112
Page Count	8
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	145
Issue Number	5
e-ISSN	1572879X
Language	English
Publisher	Springer US
Publisher Date	2015-03-28
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Laser ablation in liquid Ligand-free gold nanoparticles Langmuir–Hinshelwood kinetics Catalysis Industrial Chemistry/Chemical Engineering Organometallic Chemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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