金属氧化物纳米系统作为化学战剂的化学电阻气体传感器：重点回顾,Advanced Materials Interfaces

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金属氧化物纳米系统作为化学战剂的化学电阻气体传感器：重点回顾
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2022-04-13 , DOI: 10.1002/admi.202102525
Davide Barreca ₁ , Chiara Maccato ₂ , Alberto Gasparotto ₂

Affiliation

早期有效地检测化学战剂 (CWA)，即导致致命和不可逆转的健康损害的危险化合物，是安全保障的首要问题。尽管迄今为止做出了努力，但寻求更低的检测限、更高的选择性/稳定性和更快的识别仍然是有效应对此类可怕威胁的主要瓶颈。本综述旨在对基于用于 CWA 识别的金属氧化物纳米系统的化学电阻气体传感器的发展进行调查。回顾和讨论了文献中提出的传感机制，以及功能化/复合系统性能增强的主要原因。这项工作总结了迄今为止取得的主要成果，并尝试提供指导来克服主要的未解决问题。致力于提供有关材料特性/性能相互作用的信息，突出其制造和功能表征方面的挑战。事实上，尽管取得了进展，但仍然缺少对界面特性的合理设计和理解，以及对商业应用强制要求的系统增长的完美控制。最后，对未来发展的发展前景进行了简要展望，力求为最终的技术实施提供下一步必要步骤的愿景。尽管取得了进展，但仍然缺少对界面特性的合理设计和理解，以及对商业应用强制要求的对系统增长的完美控制。最后，对未来发展的发展前景进行了简要展望，力求为最终的技术实施提供下一步必要步骤的愿景。尽管取得了进展，但仍然缺少对界面特性的合理设计和理解，以及对商业应用强制要求的对系统增长的完美控制。最后，对未来发展的发展前景进行了简要展望，力求为最终的技术实施提供下一步必要步骤的愿景。

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Metal Oxide Nanosystems As Chemoresistive Gas Sensors for Chemical Warfare Agents: A Focused Review

The early and efficient detection of chemical warfare agents (CWAs), hazardous compounds resulting in fatal and irreversible health damages, is an issue of primary importance for security safeguard. Despite the efforts undertaken to date, the quest of lower detection limits, higher selectivity/stability, and faster recognition still represents a main bottleneck to effectively counteract such dreadful threats. This review aims at providing a survey on the developments undertaken in chemoresistive gas sensors based on metal oxide nanosystems for CWA recognition. The sensing mechanisms proposed in the literature, as well as the main reasons underlying the performance enhancement for functionalized/composite systems, are reviewed and discussed. The work summarizes key results achieved so far, and attempts to provide guidelines to overcome the main open problems. Efforts are devoted to delivering information on material properties/performance interplay, highlighting challenges in their fabrication and functional characterization. In fact, despite the advances made, a rational design and understanding of interfacial properties, as well as a perfect control over system growth, mandatory for commercial applications, are still missing. At the conclusion, a brief outlook on development prospects for future advancements is presented, endeavoring to provide a vision on the next necessary steps for an eventual technological implementation.

更新日期：2022-04-13

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