An amazingly simple recipe for nanometer-sized
corundum

Almost everyone uses nanometer-sized alumina these
days—this mineral, among others, constitutes the skeleton of modern
catalytic converters in cars. Until now, the practical production
of nanocorundum with a sufficiently high porosity has not been
possible. The situation has changed radically with the presentation
of a new method of nanocorundum production, developed as part of a
German-Polish cooperation of scientists from Mülheim an der Ruhr
and Cracow.