Size Characterization of Glutathione-Protected Gold Nanoclusters in the Solid, Liquid and Gas Phases | Zendy

Antonin Soleilhac | Zendy; Franck Bertorelle | Zendy; Clothilde CombyZerbino | Zendy; Fabien Chirot | Zendy; Nathalie Calin | Zendy; Philippe Dugourd | Zendy; Rodolphe Antoine | Zendy

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Size Characterization of Glutathione-Protected Gold Nanoclusters in the Solid, Liquid and Gas Phases

Author(s) -

Antonin Soleilhac,

Franck Bertorelle,

Clothilde CombyZerbino,

Fabien Chirot,

Nathalie Calin,

Philippe Dugourd,

Rodolphe Antoine

Publication year - 2017

Publication title -

the journal of physical chemistry c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.401

H-Index - 289

eISSN - 1932-7455

pISSN - 1932-7447

DOI - 10.1021/acs.jpcc.7b09500

Subject(s) - nanoclusters , characterization (materials science) , materials science , nanoparticle , monolayer , particle size , fluorescence anisotropy , mass spectrometry , counterion , ion , metal , analytical chemistry (journal) , nanotechnology , crystallography , chemical physics , chemical engineering , fluorescence , chemistry , chromatography , organic chemistry , metallurgy , physics , optics , engineering

International audienceMonolayer-protected metal nanoclusters belonging to the size regime between two and a few hundred atoms represent unique building blocks for new materials. Because of the extremely tiny size of such clusters (smaller than ∼3 nm in diameter) and the stabilizing layer which varies in size and composition, traditional techniques used for characterizing the size of large metal nanoparticles are not very reliable. In this work, we compare solid, liquid and gas phase size characterization methods for selected glutathione- (SG-) protected gold clusters (namely Au15(SG)13, Au18(SG)14, and Au25(SG)18). We also investigate the effect of nanocluster ion-pairing with bulky counterions on their size characterization. We show that X-ray powder diffraction, ion mobility mass spectrometry, and time-resolved fluorescence anisotropy can be a useful addition to tools available for ultrasmall nanoparticle characterization

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