Metallic Nanocrystal Ripening on Inorganic Surfaces

Priyadarshi Ranjan; Ifat Kaplan-Ashiri; Ronit Popovitz-Biro; Sidney R. Cohen; Lothar Houben; Reshef Tenne; Michal Lahav; Milko E. van der Boom

doi:10.1021/acsomega.8b00779

Metallic Nanocrystal Ripening on Inorganic Surfaces

Priyadarshi Ranjan, Ifat Kaplan-Ashiri, Ronit Popovitz-Biro, Sidney R. Cohen, Lothar Houben, Reshef Tenne^*, Michal Lahav, Milko E. van der Boom^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

In this paper, we demonstrate the formation of hybrid nanostructures consisting of two distinctive components mainly in a one-to-one ratio. Thermolysis of inorganic nanotubes (INT) and closed-cage, inorganic fullerene-like (IF) nanoparticles decorated with a dense coating of metallic nanoparticles (M = Au, Ag, Pd) results in migration of relatively small NPs or surface-enhanced diffusion of atoms or clusters, generating larger particles (ripening). AuNP growth on the surface of INTs has been captured in real time using in situ electron microscopy measurements. Reaction of the AuNP-decorated INTs with an alkylthiol results in a chemically induced NP fusion process at room temperature. The NPs do not dissociate from the surfaces of the INTs and IFs, but for proximate IFs we observed fusion between AuNPs originating from different IFs.

Original language	English
Pages (from-to)	6533-6539
Number of pages	7
Journal	ACS Omega
Volume	3
Issue number	6
Early online date	18 Jun 2018
DOIs	https://doi.org/10.1021/acsomega.8b00779
Publication status	Published - 30 Jun 2018

Funding

We thank the Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging grant no. 7208214 and the Perlman Family Foundation, the Israel Science Foundation grant no. 265/12, the Kimmel Center for Nanoscale Science grant no. 43535000350000, the German-Israeli Foundation (GIF) grant no. 712053, the Irving and Azelle Waltcher Foundations in honor of Prof. M. Levy grant no. 720821, the EU project ITN-“MoWSeS” grant no. 317451, and the G. M. J. Schmidt Minerva Center for Supramolecular Chemistry grant no. 434000340000.

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering

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abstract = "In this paper, we demonstrate the formation of hybrid nanostructures consisting of two distinctive components mainly in a one-to-one ratio. Thermolysis of inorganic nanotubes (INT) and closed-cage, inorganic fullerene-like (IF) nanoparticles decorated with a dense coating of metallic nanoparticles (M = Au, Ag, Pd) results in migration of relatively small NPs or surface-enhanced diffusion of atoms or clusters, generating larger particles (ripening). AuNP growth on the surface of INTs has been captured in real time using in situ electron microscopy measurements. Reaction of the AuNP-decorated INTs with an alkylthiol results in a chemically induced NP fusion process at room temperature. The NPs do not dissociate from the surfaces of the INTs and IFs, but for proximate IFs we observed fusion between AuNPs originating from different IFs.",

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AU - Kaplan-Ashiri, Ifat

AU - Popovitz-Biro, Ronit

AU - Cohen, Sidney R.

AU - Houben, Lothar

AU - Tenne, Reshef

AU - Lahav, Michal

AU - van der Boom, Milko E.

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Metallic Nanocrystal Ripening on Inorganic Surfaces

Abstract

Funding

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