Sensor technology is considered to be one of the three pillars of modern information technology and has a wide range of applications in many fields. As an emerging two-dimensional (2D) material, layered double hydroxides (LDHs) have attracted more interests in sensor applications due to the characteristics such as layered structure, large surface area, unique exchangeability of intercalated anions and environmental friendliness. The unique structure and surface properties of LDHs have enabled them to be utilized in a broad application in electrochemical, optical, photodetectors, humidity, and gas sensor. However, a comprehensive review on this topic is still lacking in this field. In this paper, the research progress of LDHs in sensor field is summarized. Firstly, the development process and structural characteristics of LDHs is introduced. Secondly, the characteristics of common synthesis methods of LDHs are discussed. Thereafter, we systematically describe the great potential of LDHs in sensor applications, including electrochemical, optical, photodetectors, humidity and gas sensors. Finally, based on the current state of technology, we summarize the challenges and future prospects in this field.

中文翻译：

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用于高级传感器的二维层状双氢氧化物


传感器技术被认为是现代信息技术的三大支柱之一，在许多领域都有广泛的应用。层状双氢氧化物 （LDH） 作为一种新兴的二维 （2D） 材料，由于其层状结构、大表面积、独特的插层阴离子交换性和环境友好性等特点，在传感器应用中引起了更多的兴趣。LDH 的独特结构和表面特性使其能够广泛应用于电化学、光学、光电探测器、湿度和气体传感器。然而，该领域仍然缺乏对该主题的全面审查。本文综述了 LDHs 在传感器领域的研究进展。首先，介绍了 LDHs 的发育过程和结构特征;其次，讨论了 LDHs 常用合成方法的特点。此后，我们系统地描述了 LDH 在传感器应用中的巨大潜力，包括电化学、光学、光电探测器、湿度和气体传感器。最后，基于当前的技术状况，我们总结了该领域的挑战和未来前景。