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We report the synthesis of bell-shaped Bi/Bi13S18Br2 metal/semiconductor heterostructures as a photocatalyst based on non-toxic and Earth-abundant elements. Their unique morphology arises from a multi-step growth process, involving 1) the…

In this study, a series of nanocrystalline ferrites of Ni0.7Cu0.30AlxFe2-xO4 (x=0.00 to 0.10 with a step of 0.02) has been synthesized through the sol-gel auto combustion technique. The structural, morphological, dielectric, and electrical…

Materials Science · Physics 2022-05-13 M. M. Rahman , N. Hasan , M. A. Hoque , M. B. Hossen , M. Arifuzzaman

High-temperature phase behavior in the system LixNa1-xNbO3 has been studied by using high-resolution powder neutron diffraction. Each of the three compositions studied in the Na-rich part of the phase diagram (x = 0.03, 0.08 and 0.12) shows…

Materials Science · Physics 2018-06-27 Charlotte Dixon , Philip Lightfoot

Nanoparticles of Ferric Chloride doped ZnS has been synthesized by simple chemical precipitation method and characterized by XRD, SEM, UV-Vis analysis, Differential Thermal Analysis, Thermo Gravimetric Analysis and Differential Scanning…

Chemical Physics · Physics 2013-03-12 T. Theivasanthi , N. Kartheeswari , M. Alagar

We have carried out systematic temperature-dependent neutron diffraction measurements in conjunction with dielectric spectroscopy from 6 to 300 K for sodium niobate based compounds (1-x) NaNbO3 -xBaTiO3 (NNBTx). The dielectric constant is…

Materials Science · Physics 2018-05-23 S. K. Mishra , Mrinal Jauhari , R. Mittal , P. S. R. Krishna , V. R. Reddy , S. L. Chaplot

The out-of-equilibrium heterogeneous microstructure typical of AlSi10Mg processed by Laser Powder Bed Fusion (LPBF) is often modified by further heat treatment to improve its ductility. According to literature, extensive experimental…

Using in-situ synchrotron tomography, we investigate the coarsening dynamics of barium borosilicate melts during phase separation. The 3-D geometry of the two interconnected phases is determined thanks to image processing. We observe a…

Single-phased La0.6Sr0.4Co1-yFeyO3-d (y = 0.2, 0.5, 0.8) nanorods exhibiting the rhombohedral perovskite-type phase were synthesized by a pore-wetting technique. We studied their chemical composition, crystal and electronic structures,…

The data experimental synthesis and studies of layered organic-inorganic nanocomposites [Cu2(OH)3 + DS], resulting from ablation of copper in aqueous solutions of surfactant - dodecyl sodium sulfate (SDS) are presented. By the methods of…

Mesoscale and Nanoscale Physics · Physics 2012-03-15 Vyacheslav T. Karpukhin , Mikhail M. Malikov , Tatyana I. Borodina , Evgeniy G. Valyano , Olesya A. Gololobova

We have produced synthetic analogues of cosmic silicates using the Sol Gel method, producing amorphous silicates of composition Mg(x)Ca(1-x)SiO3. Using synchrotron X-ray powder diffraction on Beamline I11 at the Diamond Light Source,…

Earth and Planetary Astrophysics · Physics 2015-06-12 S. J. Day , S. P. Thompson , A. Evans , J. E. Parker

Can we control the crystallization of solid CaCO3 from supersaturated aqueous solutions and thus mimic a natural process predicted to occur in living organisms that produce biominerals? Here we show how we achieved this by confining the…

Molecular dynamics simulations have been performed to determine the three-phase coexistence temperature for a methane hydrate system in equilibrium with a NaCl solution and a methane gas phase. The direct coexistence technique is used…

Chemical Physics · Physics 2024-01-29 S. Blazquez , C. Vega , M. M. Conde

The symmetry-breaking first-order phase transition between superfluid phases $^3$He-A and $^3$He-B can be triggered extrinsically by ionising radiation or heterogeneous nucleation arising from the details of the sample cell construction.…

The nanostructural evolution of the strain-induced structural phase transition in BiFeO3 is examined. Using high-resolution X-ray diffraction and scanning-probe microscopy-based studies we have uniquely identified and examined the numerous…

Materials Science · Physics 2011-05-23 A. R. Damodaran , C. -W. Liang , Q. He , C. -Y. Peng , L. Chang , Y. -H. Chu , L. W. Martin

Thermoelectric energy conversion - the exploitation of the Seebeck effect to convert waste heat into electricity - has attracted an increasing amount of research attention for energy harvesting technology. Niobium-doped strontium titanate…

Materials Science · Physics 2017-05-18 Yuqiao Zhang , Bin Feng , Hiroyuki Hayashi , Tetsuya Tohei , Isao Tanaka , Yuichi Ikuhara , Hiromichi Ohta

Two-dimensional colloidal halide perovskite nanocrystals are promising materials for light emitting applications. In addition, they can be used as components to create a variety of materials through physical and chemical transformations.…

The evolution of the nanoporous structure of cylindrical sintered silver samples during high temperature aging, ranging from 200 {\textdegree}C to 350 {\textdegree}C for 350 min, is studied through in-situ Computed X-Ray Tomography.…

The experiment was conducted to synthesize carbon nanospheres of different sizes by controlling the temperature in polycondensation reaction of glucose under hydrothermal process. The surface morphology, structural, optical, and thermal…

Materials Science · Physics 2017-06-20 Priya Karna , Sunil Karna

A well-established procedure for the photoelectrochemical (PEC) splitting of water relies on using porous electrodes of WO3 sensitized with BiVO4 as a visible scavenger photoanode semiconductor. In this work, we propose an evolved…

The photothermal heterodyne imaging technique enabled studies of individual weakly absorbing nano-objects in various environments. It uses a photo-induced change in the refractive index of the environment. Taking advantage of the dramatic…