Hydrogen sensors: palladium-based electrode

  • Ghobad Behzadi PourEmail author
  • Leila Fekri Aval
  • Mehdi Nasiri Sarvi
  • Sedigheh Fekri Aval
  • Hamed Nazarpour Fard


Hydrogen sensors are transducer devices and able to convert the hydrogen concentration in the environment to an electrical signal. The detection and monitoring of hydrogen gas under the explosive limit is the essential issue for its applications as the chemical reactant and energy resource. In this study, the sensing mechanism and principle of the palladium-based hydrogen gas sensors are firstly reported. Then, the physical sensing parameter, measuring range, response time and recovery time of the different hydrogen gas sensors are also reviewed. Moreover, the high response speed hydrogen sensors are introduced for practical usages.



This research work was supported by the department of physics, East Tehran Branch, Islamic Azad University.


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Authors and Affiliations

  1. 1.Department of Physics, East Tehran BranchIslamic Azad UniversityTehranIran
  2. 2.Plasma Physics Research Center, Science and Research BranchIslamic Azad UniversityTehranIran
  3. 3.School of New TechnologiesIran University of Science and TechnologyTehranIran
  4. 4.Department of Medical Biotechnology, Faculty of Advanced Medical ScienceTabriz University of Medical ScienceTabrizIran
  5. 5.Central Lab, Faculty of AgricultureUniversity of LorestanKhoram-AbadIran

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