Facile radiolytic synthesis of ruthenium nanoparticles on graphene oxide and carbon nanotubes

J. V. Rojas; M. Toro-Gonzalez; M. C. Molina-Higgins; C. E. Castano

doi:10.1016/j.mseb.2015.12.005

Facile radiolytic synthesis of ruthenium nanoparticles on graphene oxide and carbon nanotubes

J. V. Rojas, M. Toro-Gonzalez, M. C. Molina-Higgins, C. E. Castano

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

196 Scopus citations

Abstract

Ruthenium nanoparticles on pristine (MWCNT) and functionalized carbon nanotubes (f-MWCNT), and graphene oxide have been prepared through a facile, single step radiolytic method at room temperature, and ambient pressure. This synthesis process relies on the interaction of high energy gamma rays from a ⁶⁰Co source with the water in the aqueous solutions containing the Ru precursor, leading to the generation of highly reducing species that further reduce the Ru metal ions to zero valence state. Transmission electron microscopy and X-Ray diffraction revealed that the nanoparticles were homogeneously distributed on the surface of the supports with an average size of ∼2.5 nm. X-ray Photoelectron spectroscopy analysis showed that the interaction of the Ru nanoparticles with the supports occurred through oxygenated functionalities, creating metal-oxygen bonds. This method demonstrates to be a simple and clean approach to produce well dispersed nanoparticles on the aforementioned supports without the need of any hazardous chemical.

Original language	English
Pages (from-to)	28-35
Number of pages	8
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	205
DOIs	https://doi.org/10.1016/j.mseb.2015.12.005
State	Published - Mar 2016
Externally published	Yes

Funding

This work was funded by the Virginia Commonwealth University with the support of the Mechanical and Nuclear Engineering department and the NRC-HQ-84-14-FOA-002, Faculty Development Program in Radiation Detection and Health Physics at VCU. The authors would like to thank the Nanomaterials Core Characterization Facility (NCC) from the School of Engineering. Finally, we also would like to acknowledge the assistance received from Dr. Stoyan Toshkov at the Nuclear Radiation Lab, University of Illinois Urbana Champaign during the sample irradiation.

Funders	Funder number
Mechanical and Nuclear Engineering Department	NRC-HQ-84-14-FOA-002
Virginia Commonwealth University

Keywords

Carbon nanotubes
Gamma irradiation
Graphene oxide
Nanoparticles
Radiation chemistry
Radiolysis
Ruthenium

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10.1016/j.mseb.2015.12.005

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abstract = "Ruthenium nanoparticles on pristine (MWCNT) and functionalized carbon nanotubes (f-MWCNT), and graphene oxide have been prepared through a facile, single step radiolytic method at room temperature, and ambient pressure. This synthesis process relies on the interaction of high energy gamma rays from a 60Co source with the water in the aqueous solutions containing the Ru precursor, leading to the generation of highly reducing species that further reduce the Ru metal ions to zero valence state. Transmission electron microscopy and X-Ray diffraction revealed that the nanoparticles were homogeneously distributed on the surface of the supports with an average size of ∼2.5 nm. X-ray Photoelectron spectroscopy analysis showed that the interaction of the Ru nanoparticles with the supports occurred through oxygenated functionalities, creating metal-oxygen bonds. This method demonstrates to be a simple and clean approach to produce well dispersed nanoparticles on the aforementioned supports without the need of any hazardous chemical.",

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AU - Castano, C. E.

PY - 2016/3

Y1 - 2016/3

N2 - Ruthenium nanoparticles on pristine (MWCNT) and functionalized carbon nanotubes (f-MWCNT), and graphene oxide have been prepared through a facile, single step radiolytic method at room temperature, and ambient pressure. This synthesis process relies on the interaction of high energy gamma rays from a 60Co source with the water in the aqueous solutions containing the Ru precursor, leading to the generation of highly reducing species that further reduce the Ru metal ions to zero valence state. Transmission electron microscopy and X-Ray diffraction revealed that the nanoparticles were homogeneously distributed on the surface of the supports with an average size of ∼2.5 nm. X-ray Photoelectron spectroscopy analysis showed that the interaction of the Ru nanoparticles with the supports occurred through oxygenated functionalities, creating metal-oxygen bonds. This method demonstrates to be a simple and clean approach to produce well dispersed nanoparticles on the aforementioned supports without the need of any hazardous chemical.

AB - Ruthenium nanoparticles on pristine (MWCNT) and functionalized carbon nanotubes (f-MWCNT), and graphene oxide have been prepared through a facile, single step radiolytic method at room temperature, and ambient pressure. This synthesis process relies on the interaction of high energy gamma rays from a 60Co source with the water in the aqueous solutions containing the Ru precursor, leading to the generation of highly reducing species that further reduce the Ru metal ions to zero valence state. Transmission electron microscopy and X-Ray diffraction revealed that the nanoparticles were homogeneously distributed on the surface of the supports with an average size of ∼2.5 nm. X-ray Photoelectron spectroscopy analysis showed that the interaction of the Ru nanoparticles with the supports occurred through oxygenated functionalities, creating metal-oxygen bonds. This method demonstrates to be a simple and clean approach to produce well dispersed nanoparticles on the aforementioned supports without the need of any hazardous chemical.

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KW - Gamma irradiation

KW - Graphene oxide

KW - Nanoparticles

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Facile radiolytic synthesis of ruthenium nanoparticles on graphene oxide and carbon nanotubes

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Keywords

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