Electrical promotion-assisted automotive exhaust catalyst: highly active and selective NO reduction to N2 at low-temperatures

Yuki Omori; Ayaka Shigemoto; Kohei Sugihara; Takuma Higo; Toru Uenishi; Yasushi Sekine

doi:10.1039/D1CY00591J

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Electrical promotion-assisted automotive exhaust catalyst: highly active and selective NO reduction to N₂ at low-temperatures†

Yuki Omori,^a Ayaka Shigemoto,^a Kohei Sugihara,^a Takuma Higo,

^a Toru Uenishi^b and Yasushi Sekine

*^a

Author affiliations

* Corresponding authors

^a Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo 169-8555, Japan
E-mail: ysekine@waseda.jp

^b Toyota Motor Corp, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan

Abstract

A Pd catalyst (Pd/Ce_0.7Zr_0.3O₂) 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.

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Article information

DOI: https://doi.org/10.1039/D1CY00591J
Article type: Communication
Submitted: 05 Apr 2021
Accepted: 25 May 2021
First published: 02 Jun 2021
This article is Open Access

Download Citation

Catal. Sci. Technol., 2021,11, 4008-4011

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Electrical promotion-assisted automotive exhaust catalyst: highly active and selective NO reduction to N₂ at low-temperatures

Y. Omori, A. Shigemoto, K. Sugihara, T. Higo, T. Uenishi and Y. Sekine, Catal. Sci. Technol., 2021, 11, 4008 DOI: 10.1039/D1CY00591J

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