This paper presents the first successful fabrication of hierarchically ordered porous (HOP) TiO2. Poly(styrene-co-acrylic acid) colloidal spheres and triblock copolymer P123 were used as macro- and mesoporous structure-d...
T-La2CuO4 can be transformed into T'-La2CuO4 via a two-step topotactic reaction mechanism. First T-La2CuO4 is reduced by CaH2 at 200 degrees C to La2CuO3.5 which can be subsequently reoxidized to T'-La2CuO4 at 300 degree...