Palladium-silicondioxide-silicon structures as hydrogen sensors in electrolytes

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Palladium-silicondioxide-silicon structures as hydrogen sensors in electrolytes

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© The Institution of Electrical Engineers
Published

It is demonstrated that palladium-silicondioxide-silicon structures can be used to monitor hydrogen dissolved in electrolytes. It is shown that in acids (HCl) the small amount of naturally occurring hydrogen in the electrolyte is large enough to saturate the device with hydrogen. The principle of operation is suggested to be similar to that of the palladium-MOS structure kept in an inert atmosphere like argon.

Inspec keywords: chemical variables measurement; silicon compounds; metal-insulator-semiconductor structures; electrolytes; palladium; electric sensing devices

Other keywords: Pd-SiO2-Si structures; HCl; electrolytes; H2 sensors

Subjects: Metal-insulator-semiconductor structures; Sensing devices and transducers; Chemical variables measurement

References

    1. 1)
      • T.L. Poteat , B. Lalevic . Transition metal-gate MOSgaseous detectors. IEEE Trans. Electron Devices , 123 - 129
    2. 2)
      • I. Lundstrom . Hydrogen sensitive MOS-structures Part 1: Principles and applications. Sens. & Actuators , 403 - 426
    3. 3)
      • I. Lundström , D. Söderberg . Hydrogen-sensitive MOS structures Part 2: characterization. Sens. & Actuators
    4. 4)
      • I. Lundström , D. Soderberg . Isothermal hydrogen desorption from palladium films. Appl. Surf. Sci. , 506 - 522
    5. 5)
      • M.C. Steele , J.W. Hile , A.A. Maciver . Hydrogen-sensitive palladium gate MOS capacitors. J. Appl. Phys. , 2537 - 2538
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