Delafossite CuFeO2 oxides were grown inside a hydrothermal reactor using Cu2O and FeOOH as precursors and NaOH as mineralizer. During this work the effect of the NaOH mineralizer and the reaction atmosphere was studied by varying the amount of NaOH used in the hydrothermal synthesis and by chang...detailed
The optimal synthesis conditions for the growth of delafossite CuFeO2 thin films via aerosol assisted CVD were studied. An iterative synthesis process was followed until the average atomic ratio of Cu/Fe in the synthesized thin films was close to 1. TiO2 coated borosilicate was initially used as...detailed
In the present work, an enhancement for the free turbulent convection in a rectangular cavity is examined by using a novel Delafossite Nanofluid. Delafossite CuAlO2 nanoparticles prepared using Al2O3 as dominant at four different weight concentrations of the doping copper 0, 1, 3 and 5% using an...detailed
This study investigated the synthesis of delafossite CuAlO2 with Fe and graphene through a solid-state reaction method. The results of X-ray diffractometry showed that graphene was insoluble in delafossite CuAlO2 while Fe was substituted into Al sites, expanding the d-spacing. From X-ray photoel...detailed
In this paper we investigated the vibrational properties of (Fe,Li)-doped delafossite oxide CuCrO2 by means of Raman experiments. The measurements were carried out at ambient temperature and pressure and on ab- and a(b)c-plane of a single grain. The samples were prepared using self-combustion ur...detailed
Undoped and (Ag,Mg)-doped CuCrO2 semiconductor polycrystalline ceramics were produced using the self-combustion urea nitrate process. The effects of the two dopants on the microstructure, optical properties and electrical properties were investigated. X-ray diffraction results showed that all th...detailed
The use of nanostructured delafossite oxides in thermoelectric (TE) applications has attracted a great interest due to their high performance and long-term stability at elevated temperatures. Cuprous delafossites, CuMO2 (M = Al, Cr, Fe, Ga, Mn), compared to conventional TE materials, such as Bi2...detailed
The d-electron occupancy of transition metal (TM) oxides is one of the most dominant factors in the catalytic activity in the oxygen evolution reaction (OER). To investigate the spin states and the local atomic structure around the TM atoms in delafossite oxides, CuCrO2, CuMnO2, AgFeO2, CuFeO2, ...detailed