Keeping gallium metal to liquid state under the freezing point by using silica nanoparticles

Lingfei Cao; Hyunseo Park; Gjergj Dodbiba; Kenji Ono; Chiharu Tokoro; Toyohisa Fujita

doi:10.1063/1.3645596

Keeping gallium metal to liquid state under the freezing point by using silica nanoparticles

Lingfei Cao^*, Hyunseo Park, Gjergj Dodbiba, Kenji Ono, Chiharu Tokoro, Toyohisa Fujita

^*Corresponding author for this work

School of Creative Science and Engineering

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

12 Citations (Scopus)

Abstract

Gallium metal under the freezing point was observed to maintain its liquid state by dispersing silica nanoparticles of a given particle size and concentration. Though the freezing point of pure gallium is 302.9 K, the liquid gallium maintained its supercooling state at 276-277 K for more than 400 days by dispersing 1.0 wt. of silica nanoparticles (10 nm in size). Extended x-ray absorption fine structure analysis shows that the supercooled gallium liquid has a β-Ga-like feature, and the nearest neighboring atom distance is 0.1 larger than that of pure liquid gallium. This method opens the way to use liquid gallium as a promising fluid carrier in energy conversion devices.

Original language	English
Article number	143120
Journal	Applied Physics Letters
Volume	99
Issue number	14
DOIs	https://doi.org/10.1063/1.3645596
Publication status	Published - 2011 Oct 3

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3645596

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title = "Keeping gallium metal to liquid state under the freezing point by using silica nanoparticles",

abstract = "Gallium metal under the freezing point was observed to maintain its liquid state by dispersing silica nanoparticles of a given particle size and concentration. Though the freezing point of pure gallium is 302.9 K, the liquid gallium maintained its supercooling state at 276-277 K for more than 400 days by dispersing 1.0 wt. of silica nanoparticles (10 nm in size). Extended x-ray absorption fine structure analysis shows that the supercooled gallium liquid has a β-Ga-like feature, and the nearest neighboring atom distance is 0.1 larger than that of pure liquid gallium. This method opens the way to use liquid gallium as a promising fluid carrier in energy conversion devices.",

author = "Lingfei Cao and Hyunseo Park and Gjergj Dodbiba and Kenji Ono and Chiharu Tokoro and Toyohisa Fujita",

note = "Funding Information: The financial supports provided by the Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowship For Foreign Researches (FY2006) and the Grant-in-Aid for Challenging Exploratory Research (FY2010, 22656202) are gratefully acknowledged. The x-ray adsorption measurements were performed by using synchrotron radiation from Photon Factory (PF) at the National Laboratory of High Energy Physics (KEK), Tsukuba, Japan, and we appreciate the support by Dr. Chiya Numako, Tokushima University. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

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AU - Cao, Lingfei

AU - Park, Hyunseo

AU - Dodbiba, Gjergj

AU - Ono, Kenji

AU - Tokoro, Chiharu

AU - Fujita, Toyohisa

N1 - Funding Information: The financial supports provided by the Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowship For Foreign Researches (FY2006) and the Grant-in-Aid for Challenging Exploratory Research (FY2010, 22656202) are gratefully acknowledged. The x-ray adsorption measurements were performed by using synchrotron radiation from Photon Factory (PF) at the National Laboratory of High Energy Physics (KEK), Tsukuba, Japan, and we appreciate the support by Dr. Chiya Numako, Tokushima University. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2011/10/3

Y1 - 2011/10/3

N2 - Gallium metal under the freezing point was observed to maintain its liquid state by dispersing silica nanoparticles of a given particle size and concentration. Though the freezing point of pure gallium is 302.9 K, the liquid gallium maintained its supercooling state at 276-277 K for more than 400 days by dispersing 1.0 wt. of silica nanoparticles (10 nm in size). Extended x-ray absorption fine structure analysis shows that the supercooled gallium liquid has a β-Ga-like feature, and the nearest neighboring atom distance is 0.1 larger than that of pure liquid gallium. This method opens the way to use liquid gallium as a promising fluid carrier in energy conversion devices.

AB - Gallium metal under the freezing point was observed to maintain its liquid state by dispersing silica nanoparticles of a given particle size and concentration. Though the freezing point of pure gallium is 302.9 K, the liquid gallium maintained its supercooling state at 276-277 K for more than 400 days by dispersing 1.0 wt. of silica nanoparticles (10 nm in size). Extended x-ray absorption fine structure analysis shows that the supercooled gallium liquid has a β-Ga-like feature, and the nearest neighboring atom distance is 0.1 larger than that of pure liquid gallium. This method opens the way to use liquid gallium as a promising fluid carrier in energy conversion devices.

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Keeping gallium metal to liquid state under the freezing point by using silica nanoparticles

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