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|Title: ||Combined amperometric/field-effect sensor for the detection of dissolved hydrogen|
|Authors: ||HUCK, Christina|
Schoening, M. J.
|Issue Date: ||2013|
|Publisher: ||ELSEVIER SCIENCE SA|
|Citation: ||SENSORS AND ACTUATORS B-CHEMICAL, 187, p. 168-173|
|Abstract: ||Real-time and reliable monitoring of the biogas process is crucial for a stable and efficient operation of biogas production in order to avoid digester breakdowns. The concentration of dissolved hydrogen (H-2) represents one of the key parameters for biogas process control. In this work, a one-chip integrated combined amperometric/field-effect sensor for monitoring the dissolved H-2 concentration has been developed for biogas applications. The combination of two different transducer principles might allow a more accurate and reliable measurement of dissolved H-2 as an early warning indicator of digester failures. The feasibility of the approach has been demonstrated by simultaneous amperometric/fieldeffect measurements of dissolved H-2 concentrations in electrolyte solutions. Both, the amperometric and the field-effect transducer show a linear response behaviour in the H-2 concentration range from 0.1 to 3% (v/v) with a slope of 198.4 +/- 13.7 nA/% (v/v) and 14.9 +/- 0.5 mV/% (v/v), respectively. (C) 2012 Elsevier B. V. All rights reserved.|
|Notes: ||[Huck, C.; Poghossian, A.; Schoening, M. J.] Aachen Univ Appl Sci, Inst Nano & Biotechnol INB, D-52428 Julich, Germany. [Huck, C.; Poghossian, A.; Schoening, M. J.] Forschungszentrum Julich, Peter Grunberg Inst PGI 8, D-52525 Julich, Germany. [Wagner, P.] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium.
|ISI #: ||000324298300027|
|Type: ||Journal Contribution|
|Validation: ||ecoom, 2014|
|Appears in Collections: ||Research publications|
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