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Electrical Promotion-Assisted Automotive Exhaust Catalyst: Highly Active and Selective NO Reduction to N2 at Low-Temperatures
preprintsubmitted on 07.03.2021, 14:46 and posted on 09.03.2021, 05:58 by Yuki Omori, Ayaka Shigemoto, Kohei Sugihara, Takuma Higo, Toru Uenishi, Yasushi Sekine
Pd catalyst (Pd/Ce0.7Zr0.3O2) in an electric field exhibits extremely high three-way catalytic activity (TWC: NO-C3H6-CO-O2-H2O). By applying an electric field to the semiconductor catalyst, low-temperature operation of TWC can be achieved even at 473 K by virtue of the activated surface-lattice oxygen.