title: In situ formation of reduced graphene oxide structures in ceria by combined sol-gel and solvothermal processing.
abstract: Raman and IR investigations indicated the presence of reduced graphene oxide (rGO)-like residues on ceria nanoparticles after solvothermal treatment in ethanol. The appearance of such structures is closely related to ceriumtert-butoxide as precursor and ethanol as solvothermal solvent. The rGO-like residues improve the catalytic CO oxidation activity. This was also confirmed by introduction of "external" graphene oxide during sol-gel processing, by which the rGO structures and the catalytic activity were enhanced.
authors.affiliation: Institute of Materials Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Wien, Austria; permanent address: College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, LongTeng Road 333, 201620 Shanghai, P. R. China.
authors.forename: Jingxia
authors.initials: J
authors.lastname: Yang
authors.affiliation: Institute of Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9, 1060 Wien, Austria.
authors.forename: Johannes
authors.initials: J
authors.lastname: Ofner
authors.affiliation: Institute of Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9, 1060 Wien, Austria.
authors.forename: Bernhard
authors.initials: B
authors.lastname: Lendl
authors.affiliation: Institute of Materials Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Wien, Austria.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Schubert
keywords: CO oxidation; ceria; graphene oxide; sol–gel processing