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Gold‐Nanotube Membranes for the Oxidation of CO at Gas–Water Interfaces
Author(s) -
SanchezCastillo Marco A.,
Couto Claudia,
Kim Won Bae,
Dumesic James A.
Publication year - 2004
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.200353238
Subject(s) - nanotube , membrane , materials science , chemical engineering , nanotechnology , carbon nanotube , chemistry , engineering , biochemistry
Membranes of gold nanotubes in polycarbonate films are used to study catalytic reactions at gas–liquid interfaces. The catalytic properties of gold for CO oxidation with O 2 can be enhanced by liquid water and promoted by increasing the pH value of the solution. The membrane is sandwiched between other membranes that contain thiol‐functionalized gold nanotubes, which control mass transport to the central reaction zone (see picture).