Magnetoelectric (Sr0.5Ba0.5Nb2O6)1?x?(CoFe2O4)x (x = 0.2–0.6) composites were prepared by a one-pot soft-chemistry synthesis using PEG400. Calcining at 700 °C resulted in nanocrystalline composite powders (dcryst. 24–30 nm) which sintered between 1050 and 1200 to ceramic bodies with relative densities up 98%. SEM investigations confirm the formation of ceramics 0–3 connectivity variable grain s...

To protect natural resources and avoid environmental pollution, an effective method is proposed to recover tin (Sn) from waste printed circuit boards (WPCBs). In order realize the efficient recovery of Sn, it necessary study effects experimental parameters on Sn leaching understand kinetics processes. The statistical mathematical technique (response surface methodology (RSM)) was used interacti...

the nanopowders of sno2, casno3 and ca2sno4 in the size rang of 5-70 nm have been prepared using solid-state reaction technique. the technique is convenient and inexpensive in comparison to the conventional routes of compound prepared and processing where, many steps of mixing and annealing are involved. formation of resultant compounds was explained on the basis of reaction taken place between...

The effects of calcination on spent bleaching earth ash (SBEA) were investigated in terms its contribution to pozzolanic reactivity as well the strength blended cement mortar when used partial substitution. SBEA waste, which is plentiful global stock, showed some potential material reduce reliance traditional clinker cement. However, actual research use replacement and how it may benefit from w...

In this study, the bimetallic Ni-Zr MOF-derived nickel-zirconium oxide (Ni-Zr-O)-impregnated silicotungstic acid (HSiW) nanocomposite catalyst (HSiW@Ni-Zr-O) was prepared via a hydrothermal procedure followed by pyrolysis treatment, and its structural, morphological, surface components oxidation states were characterized using XRD, FTIR, TPD-NH3, SEM, TEM, N2 physisorption, XPS analyses. Then, ...

Porous ceramics were generated by direct foaming the alkali-activated unprocessed kaolin (impure kaolin, iK) with addition of hydrogen peroxide (H2O2) and calcining at a low temperature 400 ​°C. Hydrogen peroxide, blowing agent, decomposes producing oxygen gas bubbles forming porous structure in fresh iK paste. In present study, three different molarity alkali activator (5, 10, or 15 ​M NaOH) e...

The Zero Emission Coal Alliance (ZECA) is developing an integrated zero emission process that will generate clean energy carriers (electricity or hydrogen) from coal. The process exothermically gasifies coal using hydrogen to produce a methane rich intermediate state. The methane is subsequently reformed using water and a CaO based sorbent. The sorbent supplies the energy needed to drive the re...

Given the current huge generation of solid waste worldwide, alternative and innovative methodologies for incorporating these materials should be encouraged elsewhere. In this context, objective research is to evaluate use glass as a substitute sand raw material in ceramics. Formulations containing from 0% 20% were produced, thus replacing natural sand. Extruded calcined specimens produced at te...