Abstract The existence and detection of toxic and greenhouse gases at relatively low concentrations play an important role in protecting human beings exposures from intensive gases. To overcome this issue, it is essential to devise gas-sensing devices based on ultrafine-structured nanomaterials. The versatile zeolite imidazolate-based metal-organic frameworks (ZIF-MOF) are effectively synthesized using solvothermal method for superior gas sensing applications. Compared with other target gases measured at wide range of temperatures (50–350 °C) and 10–100 ppm with different gas concentrations, the fabricated gas sensors demonstrate fast response and recovery times (113.5, 111.5 s), strong sensing sensitivity (118.5) and selectivity against NO2 gas at 350 °C. Simultaneously, the polyhedral based MOF gas sensors are considered potential applicants in the development of the NO2 gas sensor industry. This research expands on new insight for high porosity metal-organic frameworks in the industrial environment applications of gas-sensors.

中文翻译：

---

面向出色 NO2 气体传感应用的小平面控制多面体 ZIF-8 MOF 纳米结构

摘要 相对低浓度的有毒气体和温室气体的存在和检测在保护人类免受高强度气体影响方面发挥着重要作用。为了克服这个问题，设计基于超细结构纳米材料的气体传感装置是必不可少的。使用溶剂热法有效合成了多功能沸石咪唑酯基金属有机骨架 (ZIF-MOF)，可用于卓越的气体传感应用。与在较宽的温度范围 (50–350 °C) 和 10–100 ppm 的不同气体浓度下测量的其他目标气体相比，制造的气体传感器表现出快速响应和恢复时间 (113.5, 111.5 s)、强传感灵敏度 (118.5 ) 和在 350 °C 时对 NO2 气体的选择性。同时地，基于多面体的 MOF 气体传感器被认为是 NO2 气体传感器行业发展的潜在申请人。这项研究扩展了对气体传感器工业环境应用中高孔隙率金属有机框架的新见解。