Nontoxic liquid metals (conductive materials in a liquid state at room temperature) are an emerging class of materials for applications ranging from soft electronics and robotics to medical therapy and energy devices. Their sticky and corrosive properties, however, are becoming more of a critical concern for circuits and devices containing other metals as these are easily destroyed or contaminated by the liquid metals. Herein, a feasible method for fabricating highly conductive graphene‐coated liquid metal (GLM) droplets is reported and their application as nonstick, noncorrosive, movable, soft contacts for electrical circuits is demonstrated. The as‐prepared GLM droplets consist of a liquid‐phase soft core of liquid metal and a slippery outer layer of graphene sheets. These structures address the issue of simultaneous control of the wettability and conductivity of a soft electronic contact by combining extraordinary properties, i.e., nonstick, noncorrosive, yet exhibiting high electronic conductivity while in contact with metal substrates, e.g., Au, Cu, Ag, and Ni. As proof‐of‐concept, the as‐prepared GLM droplets are demonstrated as floating electrodes for movable, recyclable electronic soft contacts in electrical circuits.

中文翻译：

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用于基于液滴的浮动电极的不粘，非腐蚀性，导电石墨烯涂层液态金属液滴的坚固制造

无毒液态金属（室温下呈液态的导电材料）是新兴的一类材料，其应用范围从软电子，机器人技术到医学治疗和能源设备。但是，对于含有其他金属的电路和设备，它们的粘性和腐蚀性很重要，因为它们很容易被液态金属破坏或污染。本文报道了一种制备高导电性石墨烯涂层液态金属（GLM）液滴的可行方法，并展示了其作为电路的不粘，无腐蚀，可移动，软触点的应用。制备的GLM液滴由液态金属的液相软核和石墨烯片的光滑外层组成。这些结构通过结合非凡特性（即不粘，无腐蚀性，同时与金，铜，银和铝等金属基材接触时仍显示出高电子电导率）的非凡特性，解决了同时控制软电子触点的润湿性和电导率的问题。你。作为概念验证，所制备的GLM液滴被展示为用于电路中可移动，可回收电子软触点的浮动电极。