Catalytic hydrogen peroxide decomposition on La1-xSrxCo03-d perovskite oxides


Dam, Van-Ahn. T. and Olthuis, W. and Bergveld, P. and Berg, A. van den (2005) Catalytic hydrogen peroxide decomposition on La1-xSrxCo03-d perovskite oxides. In: 13th International Conference on Solid-StateSensors, Actuators and Microsystems, Transducers 2005, June 5-9, 2005, Seoul, Korea (pp. pp. 1840-1843).

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Abstract:Lanthanide perovskite oxides are mentioned as material for hydrogen peroxide sensor because they can catalytically decompose hydrogen peroxide in an aqueous medium. The catalytic properties of these perovskite oxides to hydrogen peroxide are suggested due to their oxygen vacancies influenced by the oxide non-stoichiometry. In this paper, we investigate the catalytic hydrogen peroxide decomposition of a La/sub 1-x/Sr/sub x/CoO/sub 3-/spl delta// thin film with x = 0.7 for sensing application. The oxygen vacancy concentration in the oxide is estimated via the work function measurement using an electrolyte metal oxide semiconductor field effect transistor (/sup E/MOSFET) with a platinum remote gate. The experimental results show the catalytic properties of this oxide to hydrogen peroxide increases with increasing its non-stoichiometry, x.
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Copyright:© 2005 IEEE
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Metis ID: 224641