Liquid Metals: A Novel Possibility of Fabricating 2D Metal Oxides,Advanced Materials

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Liquid Metals: A Novel Possibility of Fabricating 2D Metal Oxides
Advanced Materials ( IF 27.4 ) Pub Date : 2021-01-14 , DOI: 10.1002/adma.202005544
Shasha Zhao ₁ , Jiaqian Zhang ₁ , Lei Fu ₁

Affiliation

2D metal oxides (2DMOs) have been widely applied in the fields of electronic, magnetic, optical, and catalytic materials, owing to their rich surface chemistry and unique electronic structures. However, their further development faces challenges such as the difficulty in fabricating 2DMOs with unstable surface induced by strong surface polarizability, or the high cost and limited yield of the fabrication process. Recently, liquid metals have shown great potential in the fabrication of 2DMOs. The native oxide skin formed on the surface of liquid metals can be considered as a perfect 2D planar material. Due to the solubility, fluidity, and reactivity of liquid metals, they can act as the solvent, reactant, and interface in the fabrication of 2DMOs. Moreover, liquid metals undergo a liquid–solid phase transition, enabling them to be a symmetric matched substrate for growing high‐quality 2DMOs. An insightful survey of the recent progress in this research direction is presented. The features of liquid metals including good solubility, chemical reactivity, weak interface force, and liquid–solid phase transitions are introduced in detail. Furthermore, strategies for the fabrication of 2DMOs by virtue of these features are summarized comprehensively. Finally, current challenges and prospects regarding the future development in the fabrication of 2DMOs via liquid metals are highlighted.

中文翻译：

液态金属：制造二维金属氧化物的新可能性

二维金属氧化物（2DMOs）由于其丰富的表面化学性质和独特的电子结构，已广泛应用于电子，磁性，光学和催化材料领域。然而，它们的进一步发展面临挑战，例如难以制造由于强表面极化性而导致具有不稳定表面的2DMO，或者制造过程的成本高且产量有限。最近，液态金属在2DMO的制造中显示出巨大的潜力。在液态金属表面上形成的天然氧化皮可以认为是完美的2D平面材料。由于液态金属的溶解性，流动性和反应性，它们可以在2DMO的制造中充当溶剂，反应物和界面。此外，液态金属会经历液相-固相转变，使它们成为增长高质量2DMO的对称匹配基板。提出了对这一研究方向的最新进展的有见地的调查。详细介绍了液态金属的特征，包括良好的溶解性，化学反应性，弱的界面力以及液相-固相转变。此外，全面总结了利用这些功能制造2DMO的策略。最后，重点介绍了通过液态金属制造2DMO的当前挑战和前景。详细介绍了液相和固相转变。此外，全面总结了利用这些功能制造2DMO的策略。最后，重点介绍了通过液态金属制造2DMO的当前挑战和前景。详细介绍了液相和固相转变。此外，全面总结了利用这些功能制造2DMO的策略。最后，重点介绍了通过液态金属制造2DMO的当前挑战和前景。

更新日期：2021-03-02

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