HYBRID EVENT: You can participate in person at Valencia, Spain or Virtually from your home or work.
Yogendra Kumar Gautham, Speaker at Materials Science Conferences
Chaudhary Charan University, India
Title : Nanostructured thin films for hydrogen gas sensing applications

Abstract:

Hydrogen has a great potential as clean and renewable energy carrier. A very efficient sensors are required to detect hydrogen gas leak in industries, mines and an automotive sector, etc. because hydrogen is highly flammable gas when mixed with air. Recently, resistance-based nanostructured metal and metal oxide (MOS) thin film based devices have great interest for their possible use as gas sensing devices. These thin film based gas sensors are easy to fabricate and have various advantages compared to other sensor device structures. The sensors have the ability to detect a wide range of hydrogen with high sensitivity. However, operating temperature, selectivity, mechanical and environmental stability of hydrogen gas sensors are still under investigation to fulfill the demand for the use of hydrogen. The nanostructured thin films have pronounced potential to overcome these issues. The Pd-capped Mg thin films based sensors fabricated on electrochemically etched porous silicon substrate using DC magnetron sputtering is found to be mechanically stable for several cycles under humid conditions. The room temperature desorption with fast kinetics for magnetron sputtered Pd-capped Mg–Pd alloy thin film have the potential to be used as room temperature H2 gas sensor. The Pd-CuO thin film sensor presents a remarkable sensing performance with fast response/recovery time for hydrogen gas at a low concentration. The sensor is observed to be highly selective towards hydrogen gas against other gases carbon monoxide and ammonia. The SnO2 thin film sensor exhibits good sensitivity at moderate working temperature for detection of wide range of concentration of hydrogen. These sensors are found stable in high humid conditions, long-term mechanical stability and highly selective to hydrogen gas. The nanostructured thin films can be used to design a simple and low-cost sensors to detect low concentration of H 2 gas for use in hydrogen-driven industries.

What will audience learn from your presentation?

  •  Importance of detection of various gases like; hydrogen and toxic gases
  • They will know about the current status and challenges of nanomaterials-based hydrogen gas sensors
  • The presentation will help to understand a practical solution to problems related to gas sensors
  • Audience will find the information for designing and performance of nanomaterials-based hydrogen gas sensors.

Biography:

Dr. Yogendra Kumar Gautam is working as Assistant Professor in Department of Physics, Chaudhary Charan University (CCSU), Meerut, U.P., India since 2015. He had worked as Assistant Professor in Department of Physics, JUET Guna, M. P., India (2013-2015). He received his M.Tech. (Solid State Materials) at Indian Institute of Technology (IIT) Delhi, India in 2007. He received his Ph.D. (Material Science) at Indian Institute of Technology (IIT) Roorkee, India in 2013. He has published 35 research articles in reputed journals. His research areas is focused on gas sensors, hydrogen storage, energy storage devices, antimicrobial activity and photocatalytic activity.

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