Greish c , Ahmed Alzamly c , Sandeep G. Surya de , Naser Qamhieh a and Saleh T. E-mail: saleh. Limited, Malmesbury, UK. The development of gas sensing devices to detect environmentally toxic, hazardous, and volatile organic compounds VOCs has witnessed a surge of immense interest over the past few decades, motivated mainly by the significant progress in technological advancements in the gas sensing field. A great deal of research has been dedicated to developing robust, cost-effective, and miniaturized gas sensing platforms with high efficiency.
Compared to conventional metal-oxide based gas sensing materials, metal—organic frameworks MOFs have garnered tremendous attention in a variety of fields, including the gas sensing field, due to their fascinating features such as high adsorption sites for gas molecules, high porosity, tunable morphologies, structural diversities, and ability of room temperature RT sensing.
This review summarizes the current advancement in various pristine MOF materials and their composites for different electrical transducer-based gas sensing applications. The review begins with a discussion on the overview of gas sensors, the significance of MOFs, and their scope in the gas sensing field. Next, gas sensing applications are divided into four categories based on different advanced transducers: chemiresistive, capacitive, quartz crystal microbalance QCM , and organic field-effect transistor OFET based gas sensors.
Their fundamental concepts, gas sensing ability towards various gases, sensing mechanisms, and their advantages and disadvantages are discussed. Finally, this review is concluded with a summary, existing challenges, and future perspectives. Ahmed Alzamly, Prof. Saleh T. Mahmoud, and Prof. Yaser E. He is currently working on MXene based 2D materials for gas sensing applications. Currently, he is working as a professor of materials chemistry at UAEU.
His research focuses on the design of various types of nanostructured materials for biomedical and environmental applications. Currently, he is an Associate Professor at the Dept. His research focuses on the design and synthesis of transition-metal catalysts for energy and environmental applications. He is a full professor at the Dept. He is the PI and Co-PI of 20 research projects, and has vast experience in the synthesis of nanomaterials and sensors' fabrication for detecting hazardous gasses.
