4.6 Article

Controlled Transformation of Liquid Metal Microspheres in Aqueous Solution Triggered by Growth of GaOOH

Journal

ACS OMEGA
Volume 7, Issue 9, Pages 7912-7919

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acsomega.1c06897

Keywords

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Funding

  1. National Key Research and Development Program of China [2017YFB0406200]
  2. CASHIPS Director's Fund [YZJJZX202015]

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This study investigates the transformation process of EGaIn microspheres in deionized water and proposes a two-step process of microspherical transformation. It is shown that the growth of GaOOH crystals drives the transformation. These findings extend the application area of liquid metals.
Liquid metals (LMs) are playing an increasingly important role in the fields of flexible devices, electronics, and thermal management due to their low melting point and excellent thermal and electrical conductivity, and the transformation of LMs in deionized water has recently received much attention. In this paper, we investigate the transformation process of EGaIn microspheres in deionized water and propose a two-step process of microspherical transformation, whereby the microspheres are first deformed into a spindle shape and then into lamellar nanorods. It is also shown that the growth of GaOOH crystals drives the transformation. Based on this result, EGaIn microspheres with controllable transformation could be prepared, such as spindle or lamellar rod shapes, extending the application area of LMs.

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