OB14 Rh sintering suppression on ZrO2 based oxide support containing a Nd enriched surface layer and an Al2O3 diffusion barrier

Monday, June 6, 2011: 4:40 PM
Columbus Ballroom (Detroit Marriott Hotel at the Renaissance Center )
Toshitaka Tanabe1, Akira Morikawa2, Miho Hatanaka2, Naoki Takahashi2, Hirofumi Shinjoh2, Akemi Sato3, Oji Kuno3 and Hiromasa Suzuki3, (1)Toyota Central R&D Labs., Inc., Aichi, Japan, (2)Toyota Central R&D Labs., Inc, Aichi, Japan, (3)Catalyst Design Dept., Toyota Motor Corporation, Toyota, Japan
Rh sintering suppression on ZrO2 based oxide was investigated. An Nd2O3 enriched layer formed on ZrO2 particles acts as an anchor for supported Rh nanoparticles. An alumina diffusion barrier was introduced to suppress the sintering of ZrO2 primary particles. This combination enabled Rh sintering suppression without degradation of Rh reducibility.

Extended Abstracts: