AbstractRoom-temperature (RT) gas sensing is desirable for battery-powered or self-powered instrumentation that can monitor emissions associated with pollution and industrial processes. This review (with 171 references) discusses recent advances in three types of porous nanostructures that have shown remarkable potential for RT gas sensing. The first group comprises hierarchical oxide nanostructures (mainly oxides of Sn, Ni, Zn, W, In, La, Fe, Co). The second group comprises graphene and its derivatives (graphene, graphene oxides, reduced graphene oxides, and their composites with metal oxides and noble metals). The third group comprises 2D transition metal dichalcogenides (mainly sulfides of Mo, W, Sn, Ni, also in combination with metal oxides). They all have been found to enable RT sensing of gases such as NOx, NH3, H2, SO2, CO, and of vapors such as of acetone, formaldehyde or methanol. Attractive features also include high selectivity and sensitivity, long-term stability and affordable costs. Strengths and limitations of these materials are highlighted, and prospects with respect to the development of new materials to overcome existing limitations are discussed. Graphical AbstractThe review summarizes the most significant progresses related to room temperature gas sensing by using hierarchical oxide nanostructures, graphene and its derivatives and 2D transition metal dichalcogenides, highlighting the peculiar gas sensing behavior with enhanced selectivity, sensitivity and long-term stability.

中文翻译：

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基于金属氧化物纳米结构、石墨烯和二维过渡金属二硫属化物的化学电阻室温气体传感器综述

摘要 室温 (RT) 气体传感适用于电池供电或自供电仪器，可以监测与污染和工业过程相关的排放。这篇综述（有 171 篇参考文献）讨论了三种多孔纳米结构的最新进展，这些结构已显示出在 RT 气体传感方面的巨大潜力。第一组包括分级氧化物纳米结构（主要是 Sn、Ni、Zn、W、In、La、Fe、Co 的氧化物）。第二组包括石墨烯及其衍生物（石墨烯、氧化石墨烯、还原氧化石墨烯，以及它们与金属氧化物和贵金属的复合物）。第三组包括二维过渡金属二硫属元素化物（主要是 Mo、W、Sn、Ni 的硫化物，也与金属氧化物结合）。它们都已被发现能够对 NOx、NH3、H2、SO2、CO、和蒸气，如丙酮、甲醛或甲醇。吸引人的特点还包括高选择性和灵敏度、长期稳定性和可承受的成本。强调了这些材料的优点和局限性，并讨论了开发新材料以克服现有局限性的前景。图形摘要该综述总结了使用分层氧化物纳米结构、石墨烯及其衍生物和二维过渡金属二硫属化物在室温气体传感方面取得的最重要进展，突出了具有增强选择性、灵敏度和长期稳定性的独特气体传感行为。强调了这些材料的优点和局限性，并讨论了开发新材料以克服现有局限性的前景。图形摘要该综述总结了使用分层氧化物纳米结构、石墨烯及其衍生物和二维过渡金属二硫属化物在室温气体传感方面取得的最重要进展，突出了具有增强选择性、灵敏度和长期稳定性的独特气体传感行为。强调了这些材料的优点和局限性，并讨论了开发新材料以克服现有局限性的前景。图形摘要该综述总结了使用分层氧化物纳米结构、石墨烯及其衍生物和二维过渡金属二硫属化物在室温气体传感方面取得的最重要进展，突出了具有增强选择性、灵敏度和长期稳定性的独特气体传感行为。