Since the discovery of graphene, research on finding such materials has extended quite fast in the last two decades. The layered architecture and very thin vertical height make it a two-dimensional material. Elemental materials have emerged parallel to other such two-dimensional materials. Anticipating their unique characteristics, the synthesis of these interesting materials has gained attention among researchers. Various techniques have been tried and tested for successful synthesis of these materials. Adequate electronic and chemical properties and a large surface-to-volume ratio along with several other distinctive properties have made these suitable for diverse applications including gas sensing, energy storage, and flexible electronics, etc. In this work, the recent work done in the area of gas sensors utilizing these elemental two-dimensional nanomaterials has been reviewed. First, an introduction to gas sensors and available homoatomic materials and their popular synthesis procedures are discussed in detail. Then, the application of each material in gas sensing through theoretical and experimental research in line with its current development is elaborated. Finally, a future outline, opportunities, and challenges of these sensors are discussed. This work provides a comprehensive and detailed review in the area of electronic sensors, particularly using homoatomic materials.

中文翻译：

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石墨烯之外的同原子平面：气体传感器的新途径

自从发现石墨烯以来，寻找此类材料的研究在过去二十年中发展得相当快。分层结构和非常薄的垂直高度使其成为一种二维材料。元素材料与其他此类二维材料同时出现。预见到它们独特的特性，这些有趣材料的合成引起了研究人员的关注。为了成功合成这些材料，已经尝试和测试了各种技术。足够的电子和化学特性、大的表面积与体积比以及其他一些独特的特性使它们适合多种应用，包括气体传感、能量存储和柔性电子器件等。在这项工作中，最近完成的工作对利用这些元素二维纳米材料的气体传感器领域进行了综述。首先，详细讨论了气体传感器和可用的同原子材料及其流行的合成程序。然后，结合当前的发展，通过理论和实验研究阐述了每种材料在气体传感中的应用。最后，讨论了这些传感器的未来概况、机遇和挑战。这项工作对电子传感器领域，特别是使用同原子材料进行了全面而详细的回顾。