A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HONEYCOMB CATALYTIC CONVERTER
The present invention relates to a honeycomb catalytic converter including: a honeycomb structured body including in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween; and a noble metal supported on the honeycomb structured body, wherein the honeycomb structured body contains a ceria-zirconia complex oxide and alumina, each partition wall includes a first carrier layer defining a surface layer of the partition wall and carrying Rh, and a second carrier layer located more inwardly of the partition wall than the first carrier layer and carrying Pd, and the Pd concentration on the first carrier layer side of each second carrier layer is higher than the Pd concentration in the center of the second carrier layer.
HONEYCOMB CATALYTIC CONVERTER
The present invention relates to a honeycomb catalytic converter including: a honeycomb structured body including in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween; and a noble metal supported on the honeycomb structured body, wherein the honeycomb structured body contains a ceria-zirconia complex oxide and alumina, each partition wall includes a first carrier layer defining a surface layer of the partition wall and carrying Rh, and a second carrier layer located more inwardly of the partition wall than the first carrier layer and carrying Pd, and the Pd concentration on the first carrier layer side of each second carrier layer is higher than the Pd concentration in the center of the second carrier layer.
HONEYCOMB CATALYTIC CONVERTER
GOTO SHINNOSUKE (author) / YOSHIDA TAKERU (author) / TOJO TAKUMI (author) / SUZUKI HIROMASA (author)
2020-07-16
Patent
Electronic Resource
English
HONEYCOMB STRUCTURE, AND CATALYTIC CONVERTER FOR AUTOMOBILE
| European Patent Office | 2017