title: Mesoporous delafossite CuCrO₂ and spinel CuCr₂O₄: synthesis and catalysis.
abstract: Delafossite CuCrO2 and spinel CuCr2O4 with mesoporous structures have been successfully synthesized using nanocasting methods based on a KIT-6 template. The functional activity of the mesoporous materials was evaluated in applications as heterogeneous catalysts. The activity for photocatalytic hydrogen production of the delafossite structures with different morphologies was characterized and the oxidation state changes associated with photocorrosion of Cu(+) investigated using electron energy loss spectroscopy (EELS). Mg(2+) doping was found to facilitate the casting of ordered structures for CuCrO2 and improves the photocorrosion resistance of delafossite structures. The mesoporous spinel CuCr2O4 nanostructures were found to be active for low temperature CO oxidation.
authors.affiliation: State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Shi
authors.forename: Miaofang
authors.initials: M
authors.lastname: Chi
authors.forename: Jung-Nam
authors.initials: JN
authors.lastname: Park
authors.forename: Galen D
authors.initials: GD
authors.lastname: Stucky
authors.forename: Eric W
authors.initials: EW
authors.lastname: McFarland
authors.forename: Lian
authors.initials: L
authors.lastname: Gao