Scalable production of two-dimensional (2D) materials is pivotal to their widespread engineering applications. However, unlike for graphene, h-BN, and MoS₂, we still lack a scalable production method for 2D metals, which are newcomers to the family of 2D materials but have shown great potential for various important applications. Here, we develop a low-cost, high-yield scalable production method for 2D metals through polymer surface buckling enabled exfoliation (PSBEE). Compared to the traditional synthesis methods for 2D metals, PSBEE is desirable in terms of its high yield (30%–100%), superior production rate (10¹–10³ mg/h), and low energy consumption rate (10⁷–10⁹ J/g). Most important, PSBEE enables the fabrication of freestanding 2D metallic nanosheets with a thermodynamically stable or metastable atomic structure, a large in-plane size, and unrestricted chemical makeup (from elemental metals to chemically complex alloys), which is incredibly rare in the field of 2D materials.

二维（2D）材料的可扩展生产对其广泛的工程应用至关重要。但是，与石墨烯，h-BN和MoS _2不同，我们仍然缺乏2D金属的可扩展生产方法，这是2D材料家族的新成员，但在各种重要应用中显示出巨大潜力。在这里，我们开发了一种通过聚合物表面屈曲剥落（PSBEE）技术来制造2D金属的低成本，高产量可扩展生产方法。与2D金属的传统合成方法相比，PSBEE具有高产量（30％–100％），出众的生产率（10 ¹ –10 ³ mg / h）和低能耗（10 ⁷ – 10 ⁹J / g）。最重要的是，PSBEE能够制造具有热力学稳定或亚稳态原子结构，大平面内尺寸以及不受限制的化学组成（从元素金属到化学复杂的合金）的独立式2D金属纳米片，这在纳米材料领域极为罕见。 2D材料。