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Pt Diffusion Dynamics for the Formation Cr–Pt Core–Shell Nanoparticles

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Pt Diffusion Dynamics for the Formation Cr–Pt Core–Shell Nanoparticles. / Gupta, G.; Iqbal, P.; Yin, F. et al.
In: Langmuir, Vol. 31, 03.06.2015, p. 6917–6923.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Gupta, G, Iqbal, P, Yin, F, Liu, J, Palmer, RE, Sharma, S, Leung, KC-F & Mendes, PM 2015, 'Pt Diffusion Dynamics for the Formation Cr–Pt Core–Shell Nanoparticles', Langmuir, vol. 31, pp. 6917–6923. https://doi.org/10.1021/acs.langmuir.5b01410

APA

Gupta, G., Iqbal, P., Yin, F., Liu, J., Palmer, R. E., Sharma, S., Leung, K. C.-F., & Mendes, P. M. (2015). Pt Diffusion Dynamics for the Formation Cr–Pt Core–Shell Nanoparticles. Langmuir, 31, 6917–6923. https://doi.org/10.1021/acs.langmuir.5b01410

Vancouver

Gupta G, Iqbal P, Yin F, Liu J, Palmer RE, Sharma S et al. Pt Diffusion Dynamics for the Formation Cr–Pt Core–Shell Nanoparticles. Langmuir. 2015 Jun 3;31:6917–6923. doi: 10.1021/acs.langmuir.5b01410

Author

Gupta, G. ; Iqbal, P. ; Yin, F. et al. / Pt Diffusion Dynamics for the Formation Cr–Pt Core–Shell Nanoparticles. In: Langmuir. 2015 ; Vol. 31. pp. 6917–6923.

Bibtex

@article{a0f8bbe2ba3a49e5bc1d6e2f6b47ea98,
title = "Pt Diffusion Dynamics for the Formation Cr–Pt Core–Shell Nanoparticles",
abstract = "Layered core–shell bimetallic Cr–Pt nanoparticles were prepared by the formation and later reduction of an intermediate Pt-ion-containing supramolecular complex onto preformed Cr nanoparticles. The resultant nanoparticles were characterized by X-ray diffraction analysis, transmission electron microscopy, X-ray photoelectron spectroscopy, and aberration-corrected scanning transmission electron microscopy. The results are consistent with the presence of Pt diffusion during or after bimetallic nanoparticle formation, which has resulted in a Pt/Cr-alloyed core and shell. We postulate that such Pt diffusion occurs by an electric-field-assisted process according to Cabrera–Mott theory and that it originates from the low work function of the preformed oxygen-defective Cr nanoparticles and the rather large electron affinity of Pt.",
author = "G. Gupta and P. Iqbal and F. Yin and J. Liu and Palmer, {R. E.} and S. Sharma and Leung, {K. Cham-Fai} and Mendes, {P. M.}",
year = "2015",
month = jun,
day = "3",
doi = "10.1021/acs.langmuir.5b01410",
language = "English",
volume = "31",
pages = "6917–6923",
journal = "Langmuir",
issn = "0743-7463",
publisher = "AMER CHEMICAL SOC",

}

RIS

TY - JOUR

T1 - Pt Diffusion Dynamics for the Formation Cr–Pt Core–Shell Nanoparticles

AU - Gupta, G.

AU - Iqbal, P.

AU - Yin, F.

AU - Liu, J.

AU - Palmer, R. E.

AU - Sharma, S.

AU - Leung, K. Cham-Fai

AU - Mendes, P. M.

PY - 2015/6/3

Y1 - 2015/6/3

N2 - Layered core–shell bimetallic Cr–Pt nanoparticles were prepared by the formation and later reduction of an intermediate Pt-ion-containing supramolecular complex onto preformed Cr nanoparticles. The resultant nanoparticles were characterized by X-ray diffraction analysis, transmission electron microscopy, X-ray photoelectron spectroscopy, and aberration-corrected scanning transmission electron microscopy. The results are consistent with the presence of Pt diffusion during or after bimetallic nanoparticle formation, which has resulted in a Pt/Cr-alloyed core and shell. We postulate that such Pt diffusion occurs by an electric-field-assisted process according to Cabrera–Mott theory and that it originates from the low work function of the preformed oxygen-defective Cr nanoparticles and the rather large electron affinity of Pt.

AB - Layered core–shell bimetallic Cr–Pt nanoparticles were prepared by the formation and later reduction of an intermediate Pt-ion-containing supramolecular complex onto preformed Cr nanoparticles. The resultant nanoparticles were characterized by X-ray diffraction analysis, transmission electron microscopy, X-ray photoelectron spectroscopy, and aberration-corrected scanning transmission electron microscopy. The results are consistent with the presence of Pt diffusion during or after bimetallic nanoparticle formation, which has resulted in a Pt/Cr-alloyed core and shell. We postulate that such Pt diffusion occurs by an electric-field-assisted process according to Cabrera–Mott theory and that it originates from the low work function of the preformed oxygen-defective Cr nanoparticles and the rather large electron affinity of Pt.

U2 - 10.1021/acs.langmuir.5b01410

DO - 10.1021/acs.langmuir.5b01410

M3 - Journal article

VL - 31

SP - 6917

EP - 6923

JO - Langmuir

JF - Langmuir

SN - 0743-7463

ER -