ZnO is a commonly used material for hydrogen gas sensors. In this study, nanofiber film with diameter of approximately 60 nm was synthesized by the electrospinning method. Compared to previously reported sensors, an abnormal phenomenon observed here, where resistance increased upon exposure in temperature range from 210 °C 330 °C. The physical mechanism explored through microstructure analysis ...

Today, monitoring and classification of hydrogen gas by metal oxide-based sensors are widely studying to improve their selectivity stability. In present work, sensing properties magnetron sputtered deposited pure SnO2 thin films have been studied. The film was on glass substrate as-deposited annealed at 450 °C for 6 hrs. has crystalline tetragonal structure, granular surface morphology non-stoi...

zno nanostructures of different methods and sizes were grown in a controlled manner using a simple hydrothermal and sonochemical technique. controlling the content of concentration and temperature of the reaction mixture, spherical nanoparticles zno structures could be synthesized at temperatures 100-150 °c with excellent reproducibility in solvothermal and at different power and time in sonoch...

in an attempt ot develop a one step process for the removal of h2s from sour gas, the engineering consideration were dealt with in two steps. in the first step it was attempted to derive the data required for establishing the design criteria for a pilot plant, by experimenting with a small bench scale.

To detect hydrogen gas leakage rapidly, many types of hydrogen sensors containing palladium alloy film have been proposed and fabricated to date. However, the mechanisms and factors that determine the response rate of such hydrogen sensor have not been established theoretically. The manners in which response time is forecasted and sensitive film is designed are key issues in developing hydrogen...