Structural and Electronic Effect Driven Distortions in Visible Light Absorbing Polar Materials TaVO ( = Sr, Pb).

Complex vanadates of tantalum(V), such as TaVO (A = Sr, Pb), are rare and underrated materials, which have potential application domains that could be substantially expanded, mitigating the existing controversy on their atomic and electronic organization. Herein, we present a thorough structural examination combining synchrotron powder X-ray diffraction-aided distortion mode analysis with computational methods to study hettotypes of SrTaVO (STVO) and PbTaVO (PTVO). Being distinct from the perovskite family due to the presence of [VO] groups, both compounds are polar dielectric materials with certain similarities to SBT and PBT Aurivillius phases.

NaNiPO-Ni(OH) core-shell nanoparticles as hybrid electrocatalysts for the oxygen evolution reaction in alkaline electrolytes.

There is wide interest in developing efficient, robust and low-cost electrode materials for the electrolysis of water to produce clean hydrogen fuel. It is especially important to improve the performance and durability of electrocatalysts for the OER. Here we have shown that the transformation of nanoparticle (n-NNP) and crystalline (c-NNP) forms of mixed phosphate Na4Ni3(PO4)2P2O7 in highly alkaline solutions occurs along various routes and provokes the generation of 2D Ni(OH)2 nanosheets or stable core(phosphate)-shell(Ni(OH)2) particles, respectively.

CoO(OH)/C nanocomposites in situ derived from NaCo(PO)PO as sustainable electrocatalysts for water splitting.

The great interest in developing efficient and stable bifunctional electrodes for electrocatalytic water splitting is due to the rapid growth in demand for sustainable and renewable energy sources. Here, we present an original electrode design strategy which can be used for the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER). This strategy is based on the direct formation of active catalytic material on the electrode surface during electrolysis.

New complex phosphates CsMBi(PO) (M - Ca, Sr and Pb): synthesis, characterization, crystal and electronic structure.

Herein, the peculiarities of complex phosphate formation in self-fluxes of Cs-M-Bi-P-O (M = Ca, Sr, Ba and Pb) systems with Cs/P = 0.7-1.3 at fixed ratios of Bi/P = 0.