M Kimura et al 2009 J. Phys.: Conf. Ser. 190 012163 doi:10.1088/1742-6596/190/1/012163
M Kimura1, K Uemura3, T Nagai3, Y Niwa4, Y Inada2 and M Nomura4
Show affiliationsWe investigated the change in structures during reduction and oxidation of a new type of Pd on Sr-Fe-O catalyst for exhaust emission. In situ DXAFS techniques have shown changes in palladium states and oxygen concentration simultaneously during reduction and oxidation reactions. Quantitative analysis has shown that palladium atoms change their states between Pd(II*) and Pd(0) reversibly according to the gas atmosphere accompanying changes in the oxygen concentration. This reaction explains the high performance of the catalyst.
82.65.+r Surface and interface chemistry; heterogeneous catalysis at surfaces
89.20.Bb Industrial and technological research and development
82.30.-b Specific chemical reactions; reaction mechanisms
82.80.Ej X-ray, Mössbauer, and other gamma-ray spectroscopic analysis methods
Condensed matter: electrical, magnetic and optical
Issue 1 (2009)
M Kimura et al 2009 J. Phys.: Conf. Ser. 190 012163
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