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Water‐Gas Shift Reaction on a Highly Active Inverse CeO x /Cu(111) Catalyst: Unique Role of Ceria Nanoparticles
Author(s) -
Rodriguez José A.,
Graciani Jesús,
Evans Jaime,
Park Joon B.,
Yang Fan,
Stacchiola Dario,
Senanayake Sanjaya D.,
Ma Shuguo,
Pérez Manuel,
Liu Ping,
Sanz Javier Fdez.,
Hrbek Jan
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200903918
Subject(s) - catalysis , water gas shift reaction , nanoparticle , copper , inverse , substrate (aquarium) , oxide , nanotechnology , chemical engineering , materials science , chemistry , computer science , metallurgy , geology , mathematics , organic chemistry , engineering , oceanography , geometry
CeO takes charge : Ceria grows forming small islands on terraces (2–5 nm, CeO x ‐I) and large islands on steps of a copper substrate (30–50 nm, CeO x ‐II; see scheme; 100×100 nm 2 ). The resulting CeO x /Cu(111) systems display an extraordinary water‐gas shift activity and illustrate the role that an oxide can play in improving the performance of copper‐based catalysts.