Effect of pH on the spontaneous synthesis of palladium nanoparticles on reduced graphene oxide

Xiaorui Zhang; Wataru Ooki; Yoshinori R. Kosaka; Akinori Okonogi; Galina Marzun; Philipp Wagener; Stephan Barcikowski; Takahiro Kondo; Junji Nakamura

doi:10.1016/j.apsusc.2016.08.014

Effect of pH on the spontaneous synthesis of palladium nanoparticles on reduced graphene oxide

Xiaorui Zhang, Wataru Ooki, Yoshinori R. Kosaka, Akinori Okonogi, Galina Marzun, Philipp Wagener, Stephan Barcikowski, Takahiro Kondo, Junji Nakamura

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

18 Citations (Scopus)

Abstract

Palladium (Pd) nanoparticles were spontaneously deposited on reduced graphene oxide (rGO) without any external reducing agents. The prepared Pd/rGO composites were then characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Spontaneous deposition occurred because of a redox reaction between the Pd precursor and rGO, which involved reduction of bivalent Pd to metallic Pd ⁰ and oxidation of the sp ² carbon of rGO to oxygen-containing functional groups. The amount of Pd deposited on rGO varied with pH, and this was attributed to electrostatic interactions between the Pd precursor and rGO based on the results of zeta potential measurements. The importance of the redox reaction in the spontaneous deposition was demonstrated in the experiment with Zn, Ni, Cu, Ag, Pt, Pd, and Au.

Original language	English
Pages (from-to)	911-915
Number of pages	5
Journal	Applied Surface Science
Volume	389
DOIs	https://doi.org/10.1016/j.apsusc.2016.08.014
Publication status	Published - Dec 15 2016
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/j.apsusc.2016.08.014

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title = "Effect of pH on the spontaneous synthesis of palladium nanoparticles on reduced graphene oxide",

abstract = " Palladium (Pd) nanoparticles were spontaneously deposited on reduced graphene oxide (rGO) without any external reducing agents. The prepared Pd/rGO composites were then characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Spontaneous deposition occurred because of a redox reaction between the Pd precursor and rGO, which involved reduction of bivalent Pd to metallic Pd 0 and oxidation of the sp 2 carbon of rGO to oxygen-containing functional groups. The amount of Pd deposited on rGO varied with pH, and this was attributed to electrostatic interactions between the Pd precursor and rGO based on the results of zeta potential measurements. The importance of the redox reaction in the spontaneous deposition was demonstrated in the experiment with Zn, Ni, Cu, Ag, Pt, Pd, and Au.",

author = "Xiaorui Zhang and Wataru Ooki and Kosaka, {Yoshinori R.} and Akinori Okonogi and Galina Marzun and Philipp Wagener and Stephan Barcikowski and Takahiro Kondo and Junji Nakamura",

note = "Funding Information: This work was supported by the ACT-C , and the JST . Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

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doi = "10.1016/j.apsusc.2016.08.014",

language = "English",

volume = "389",

pages = "911--915",

journal = "Applied Surface Science",

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TY - JOUR

T1 - Effect of pH on the spontaneous synthesis of palladium nanoparticles on reduced graphene oxide

AU - Zhang, Xiaorui

AU - Ooki, Wataru

AU - Kosaka, Yoshinori R.

AU - Okonogi, Akinori

AU - Marzun, Galina

AU - Wagener, Philipp

AU - Barcikowski, Stephan

AU - Kondo, Takahiro

AU - Nakamura, Junji

PY - 2016/12/15

Y1 - 2016/12/15

N2 - Palladium (Pd) nanoparticles were spontaneously deposited on reduced graphene oxide (rGO) without any external reducing agents. The prepared Pd/rGO composites were then characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Spontaneous deposition occurred because of a redox reaction between the Pd precursor and rGO, which involved reduction of bivalent Pd to metallic Pd 0 and oxidation of the sp 2 carbon of rGO to oxygen-containing functional groups. The amount of Pd deposited on rGO varied with pH, and this was attributed to electrostatic interactions between the Pd precursor and rGO based on the results of zeta potential measurements. The importance of the redox reaction in the spontaneous deposition was demonstrated in the experiment with Zn, Ni, Cu, Ag, Pt, Pd, and Au.

AB - Palladium (Pd) nanoparticles were spontaneously deposited on reduced graphene oxide (rGO) without any external reducing agents. The prepared Pd/rGO composites were then characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Spontaneous deposition occurred because of a redox reaction between the Pd precursor and rGO, which involved reduction of bivalent Pd to metallic Pd 0 and oxidation of the sp 2 carbon of rGO to oxygen-containing functional groups. The amount of Pd deposited on rGO varied with pH, and this was attributed to electrostatic interactions between the Pd precursor and rGO based on the results of zeta potential measurements. The importance of the redox reaction in the spontaneous deposition was demonstrated in the experiment with Zn, Ni, Cu, Ag, Pt, Pd, and Au.

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EP - 915

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

ER -

Effect of pH on the spontaneous synthesis of palladium nanoparticles on reduced graphene oxide

Abstract

All Science Journal Classification (ASJC) codes

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