Journal article
Oxidation of Gallium-based Liquid Metal Alloys by Water
Langmuir, v 36(43), pp 12933-12941
03 Nov 2020
PMID: 33090792
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Gallium alloys with other low melting point metals, such as indium or tin, to form room-temperature liquid eutectic systems. The gallium in the alloys rapidly forms a thin surface oxide when exposed to ambient oxygen. This surface oxide has been previously exploited for self-stabilization of liquid metal nanoparticles, retention of metastable shapes, and imparting stimuli-responsive behavior to the alloy surface. In this work, we study the effect of water as an oxidant and its role in defining the alloy surface chemistry. We identify several pathways that can lead to the formation of gallium oxide hydroxide (GaOOH) crystallites, which may be undesirable in many applications. Furthermore, we find that some crystallite formation pathways can be reinforced by typical top-down particle synthesis techniques like sonication. This improved understanding of interfacial interactions provides critical insight for process design and implementation of advanced devices that utilize the unique coupling of flexibility and conductivity offered by these gallium-based liquid metal alloys.
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Details
- Title
- Oxidation of Gallium-based Liquid Metal Alloys by Water
- Creators
- Megan A. Creighton - Wright-Patterson Air Force BaseMichelle C. Yuen - Wright-Patterson Air Force BaseMichael A. Susner - Wright-Patterson Air Force BaseZachary Farrell - Wright-Patterson Air Force BaseBenji Maruyama - Wright-Patterson Air Force BaseChristopher E. Tabor - Wright-Patterson Air Force Base
- Publication Details
- Langmuir, v 36(43), pp 12933-12941
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 9
- Grant note
- 19RXCOR052 / AFOSR (LRIR)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000589253600016
- Scopus ID
- 2-s2.0-85095461394
- Other Identifier
- 991021229895804721
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Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary