Abstract The nature and local environment of Au single atoms supported stabilized on four different oxides is studied by means DFT + U calculations using CO as probe molecule its stretching frequency, ? e , a fingerprint the site where atom bound. Four are considered, anatase TiO 2 tetragonal ZrO cubic CeO perovskite LaFeO 3 . In this latter case recently reported experimental study has detecte...

Piezoelectrics are key functional materials in actuator and sensor applications. Current technology exploits lead-based materials displaying a morphotropic phase boundary (MPB) between two ferroelectric solid solutions of different symmetries and polarization directions. This is best exemplified by the PbZr1 xTixO3 (PZT) perovskite system where the distortions driving the piezo response are pro...

A proposal that high solid oxide fuel cell (SOFC) anode performance can be achieved by using a very thin, catalytically active functional layer, with a noncatalytic conduction layer, has been tested. An anode impedance of 0.26 Ω cm2 was obtained at 973 K in humidified H2 using a Ag-paste conduction layer and a 12 μm thick functional layer made from 1 wt % Pd and 40 wt % ceria in yttria-stabiliz...