for the first time, this research reports the formation of nanoporous layers of metals on the surface of metal substrates by raney method and their conversion to corresponding porous perovskite layers. the noble metals doped perovskites are used as catalytic converter for reducing automotive pollutants. the use of perovskite as a substrate for the noble metals can reduce the need for such metal...

In this paper, catalytic oxidation of CO over the LaFe1-xCuxO3 (x= 0, 0.2, 0.4, 0.6) perovskite-type oxides was investigated. The catalysts were synthesized by sol-gel method and characterized by XRD, BET, FT-IR, H2-TPR and SEM methods. The catalytic activity of catalysts was tested in catalytic oxidation of CO. XRD patterns confirmed the synthesized perovskites to be single-phase perovskite-ty...

Materials with tunable infrared refractive index changes have enabled active metasurfaces for novel control of optical circuits, thermal radiation, and more. Ion-gel-gated epitaxial films the perovskite cobaltite La1−xSrxCoO3−δ (LSCO) 0.00 ≤ x 0.70 offer a new route to significant, voltage-tuned, nonvolatile modulation metasurfaces, shown here through Kramers–Kronig-consistent dispersion models...

Organic-inorganic hybrid perovskite solar cells are considered as one of the most promising next-generation solar cells due to their advantages of low-cost precursors, high power conversion efficiency (PCE) and easy of processing. In the past few years, the PCEs have climbed from a few to over 20% for perovskite solar cells. Recent developments demonstrate that perovskite exhibits ambipolar sem...

In this "nano idea" paper, three concepts for the preparation of methylammonium lead halide perovskite particles are proposed, discussed, and tested. The first idea is based on the wet chemistry preparation of the perovskite particles, through the addition of the perovskite precursor solution to an anti-solvent to facilitate the precipitation of the perovskite particles in the solution. The sec...

[1] The athermal elastic constants of the perovskite and post-perovskite polymorphs of pure end-member FeSiO3 were calculated from ab initio calculations. We predict that incorporating ten mole percent FeSiO3 together with four mole percent Al2O3 into MgSiO3 reduces the perovskite to post-perovskite phase transition pressure by 5 GPa. Small changes in the seismic properties of the post-perovski...

Most research on perovskite solar cells has focused on improving power-conversion efficiency and stability. However, if one could refurbish perovskite solar cells, their stability might not be a critical issue. From the perspective of cost effectiveness, if failed, perovskite solar cells could be collected and recycled; reuse of their gold electrodes and transparent conducting glasses could red...

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim wileyonlinelibrary.com (1 of 7) 1604733 configuration is of the structure R2(CH3NH3)n–1MnX3n+1, where R is an organic group, M is a divalent metal, and X is a halide (Cl−, Br−, or I−). The number of perovskite layers are determined by the long organic groups separated by the MX6 layers.[8] In this work, quasi 2D perovskites were synthesized whic...