Tang Xiaohui, Debliquy Marc, Lahem Driss, Yan Yiyi, Raskin Jean-Pierre
ICTEAM Institute, Université Catholique de Louvain (UCLouvain), Place du Levant, 3, 1348 Louvain-la-Neuve, Belgium.
Materials Science Department, University of Mons, 56, Rue de l'Epargne, 7000 Mons, Belgium.
Sensors (Basel). 2021 Feb 19;21(4):1443. doi: 10.3390/s21041443.
Since the first graphene gas sensor has been reported, functionalized graphene gas sensors have already attracted a lot of research interest due to their potential for high sensitivity, great selectivity, and fast detection of various gases. In this paper, we summarize the recent development and progression of functionalized graphene sensors for ammonia (NH) detection at room temperature. We review graphene gas sensors functionalized by different materials, including metallic nanoparticles, metal oxides, organic molecules, and conducting polymers. The various sensing mechanism of functionalized graphene gas sensors are explained and compared. Meanwhile, some existing challenges that may hinder the sensor mass production are discussed and several related solutions are proposed. Possible opportunities and perspective applications of the graphene NH sensors are also presented.
自从首个石墨烯气体传感器被报道以来，功能化石墨烯气体传感器因其在高灵敏度、高选择性以及快速检测各种气体方面的潜力，已经吸引了大量的研究兴趣。在本文中，我们总结了用于室温下检测氨气（NH₃）的功能化石墨烯传感器的最新进展。我们回顾了通过不同材料功能化的石墨烯气体传感器，这些材料包括金属纳米颗粒、金属氧化物、有机分子和导电聚合物。解释并比较了功能化石墨烯气体传感器的各种传感机制。同时，讨论了一些可能阻碍传感器大规模生产的现有挑战，并提出了几种相关解决方案。还介绍了石墨烯氨气传感器可能的机遇和潜在应用。
