Elemental two-dimensional (2D) materials have emerged as promising candidates for energy and catalysis applications due to their unique physical, chemical, and electronic properties. These materials are advantageous in offering massive surface-to-volume ratios, favorable transport properties, intriguing physicochemical properties, and confinement effects resulting from the 2D ultrathin structure. In this review, we focus on the recent advances in emerging energy and catalysis applications based on beyond-graphene elemental 2D materials. First, we briefly introduce the general classification, structure, and properties of elemental 2D materials and the new advances in material preparation. We then discuss various applications in energy harvesting and storage, including solar cells, piezoelectric and triboelectric nanogenerators, thermoelectric devices, batteries, and supercapacitors. We further discuss the explorations of beyond-graphene elemental 2D materials for electrocatalysis, photocatalysis, and heterogeneous catalysis. Finally, the challenges and perspectives for the future development of elemental 2D materials in energy and catalysis are discussed.

中文翻译：

---

用于能源和催化应用的新兴超越石墨烯元素的二维材料

由于其独特的物理、化学和电子特性，元素二维 (2D) 材料已成为能源和催化应用的有希望的候选材料。这些材料的优势在于提供巨大的表面积与体积比、有利的传输特性、有趣的物理化学特性以及二维超薄结构产生的限制效应。在这篇综述中，我们重点关注基于超石墨烯元素二维材料的新兴能源和催化应用的最新进展。首先，我们简要介绍了元素二维材料的一般分类、结构和性质以及材料制备的新进展。然后我们讨论能量收集和存储方面的各种应用，包括太阳能电池、压电和摩擦纳米发电机，热电设备、电池和超级电容器。我们进一步讨论了用于电催化、光催化和多相催化的超石墨烯元素二维材料的探索。最后，讨论了元素二维材料在能源和催化领域未来发展的挑战和前景。