The search for materials with high thermal resistance has promising applications in thermoelectric devices and boiling crisis retardation. In this paper, we study the interfacial heat transfer between water and gold, nanostructuring the gold surface and coating it with graphene. By trapping air (or vacuum in our simulations) between graphene and the nanopatterned surface, we observe a considerable increase in the interfacial resistance compared to the planar gold situation, which is shown to scale with the effective graphene–gold contact surface for both monolayer and multilayer graphene. With the massive thermal resistances we predict (up to 200 nm in terms of Kapitza length), the system proposed here represents a robust alternative to superhydrophobic Cassie materials. Moreover, since the low thermal conductance is achieved primarily due to geometry (vacuum trapping), it is straightforward to extend our results to any material with a structure equivalent to that of the nanopatterned gold wall considered here.

中文翻译：

---

使用涂有石墨烯的纳米结构金表面实现超高液-固热阻

寻找具有高耐热性的材料在热电器件和沸腾危机延迟方面具有广阔的应用前景。在这篇论文中，我们研究了水和金之间的界面热传递，对金表面进行纳米结构化并在其上涂上石墨烯。通过在石墨烯和纳米图案表面之间捕获空气（或我们的模拟中的真空），我们观察到与平面金情况相比界面电阻显着增加，这表明单层和单层的有效石墨烯-金接触表面成比例多层石墨烯。由于我们预测的巨大热阻（根据 Kapitza 长度高达 200 nm），这里提出的系统代表了超疏水 Cassie 材料的稳健替代品。而且，