Methane oxidation over A-site ordered and disordered Sr(0.8)Gd(0.2)CoO(3-δ) perovskites.
A tetragonal phase Sr0.8Gd0.2CoO3-δ with ordered Gd(3+)/Sr(2+) ions and oxygen vacancy sites is found to be about five times less active in the reaction of methane combustion than a quenched cubic perovskite phase with randomly distributed (disordered) Gd(3+)/Sr(2+) ions over the A-sites of the crystal lattice.
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk, 660036, Russia. snv@icct.ru.
Sergei N
SN
Vereshchagin
Leonid A
LA
Solovyov
Evgenii V
EV
Rabchevskii
Vyacheslav A
VA
Dudnikov
Sergey G
SG
Ovchinnikov
Alexander G
AG
Anshits