Size dependent oxygen buffering capacity of ceria nanocrystals.
The structural, chemical and electronic changes of ceria as a function of decreasing particle size have been studied: at sizes below 5 nm the total amount of reducible oxygen dramatically increases due to superoxide formation on the ceria surface, a result indicative of a size dependent oxygen buffering capacity.
Xu
Jiahui
J
Wolfson Catalysis Centre, Inorganic Chemistry Laboratory, University of Oxford, Oxford, UK OX1 3QR.
Harmer
Jeffrey
J
Li
Guoqiang
G
Chapman
Thomas
T
Collier
Paul
P
Longworth
Sarennah
S
Tsang
Shik Chi
SC