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Effect of pH on Nanoparticle Structure in Radiochemical Synthesis of PtCu Alloy Supported on γ-Fe2O3 and Carbon

Published online by Cambridge University Press:  18 January 2016

Tomohisa Okazaki ,
Satoshi Seino ,
Junichiro Kugai ,
Yuji Ohkubo ,
Takashi Nakagawa  and
Takao A. Yamamoto
Tomohisa Okazaki*
Affiliation:
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
Satoshi Seino
Affiliation:
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
Junichiro Kugai
Affiliation:
Kobe City College of Technology, 8-3 Gakuenhigashimachi Nishiku, Kobe, Hyogo 651-2194, Japan
Yuji Ohkubo
Affiliation:
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
Takashi Nakagawa
Affiliation:
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
Takao A. Yamamoto
Affiliation:
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
*
*(Email: t-okazaki@mit.eng.osaka-u.ac.jp)
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Abstract

PtCu nanoparticles were synthesized with different pH and support conditions using radiochemical process. The nanoparticle structures were characterized by transmission electron microscopy, inductively coupled plasma atomic emission spectrometry, X-ray absorption spectroscopy, and X-ray diffraction techniques. The nanoparticle structure was relevant to the pH of the precursor solutions. The lattice parameter of PtCu alloy increased in high pH samples, which indicates the critical effect of metal ion adsorption in precursor solution on nanoparticle structure.

Keywords

adsorptionPtelectron irradiation
Type
Articles
Information
MRS Advances , Volume 1 , Issue 6: Energy and Sustainability , 2016 , pp. 427 - 432
Copyright
Copyright © Materials Research Society 2016 

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References

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