High purity lead titanate nanopowders in tetragonal form have been successfully prepared bycitric acid gel method using lead nitrate and tetra-n-butyl titanate as Pb and Ti sourcesrespectively and citric acid as complexing reagent. The precursors were calcined at varioustemperatures ranging from 450 °C to 600 °C for 2 h. Fourier Transform InfraredSpectroscopy (FT-IR), X-ray diffraction (XRD) an...

AUTHOR EMAIL ADDRESS ([email protected]) RECEIVED DATE (to be automatically inserted after your manuscript is accepted if required according to the journal that you are submitting your paper to) TITLE RUNNING HEAD 'High temperature stable anatase TiO 2 ' CORRESPONDING AUTHOR FOOTNOTE *[email protected] 2 ABSTRACT: In the absence of a dopant or precursor modification, anatase to rutile tra...

Preparation and properties of La(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 high-entropy ceramics are investigated. prepared by a traditional two-step solid-state reaction method in air. single-phase powders synthesized calcining the mixed oxides at 1000 °C for 20 h. The sintered 1350–1650 muffle furnace 4 h using above powders. phase compositions different temperatures characterized X-ray diffraction (XRD) ...

The Mn-containing mixed-oxide-supported bismuth oxychloride (BiOCl) catalysts were prepared by calcining their corresponding parent hydrotalcite supported BiOCl. crystal structure of BiOCl was found to be intact during calcination, while significant differences appeared in the chemical state Mn and redox capacities before after calcination. Compared hydrotalcite-supported catalysts, showed much...

stoichiometric tetragonal bal-xsrxtio3 (x = 0.23) nanopowders were prepared by stearic acid gel(sag) method using barium stearate, strontium stearate, tetrabutyl titanate as ba, sr, ti sourcesand stearic acid as complexing reagent. thermal analysis including differential thermogravimetric(dtg) and tg, fourier transform infrared spectrometry (ftir), x-ray diffraction (xrd) andtransmission electr...

A pyroscrubber is a furnace used in the petroleum coke calcining industry to recover energy from the carbonaceous contents, including char dust and hydrocarbon volatiles of the exhaust gas from the calcination kiln. The combusted hot gases are used to generate steam and produce electricity, so it is important to optimize the pyroscrubber performance to produce high-grade combusted gases to gene...

The main obstacle to solid oxide fuel cells (SOFCs) implementation is the high operating temperature in range of 800–1,000 °C so that it has an impact on costs. SOFCs work at temperatures causing rapid breakdown between layers (anode, electrolyte, and cathode) because they have different thermal expansion. study focused reducing medium range. SmBa0.5Sr0.5Co2O5+δ (SBSC) was studied as a cathode ...

A new polymorph crystalline silica composition having uniform pore dimensions were synthesized by calcining a crystalline hydrated alkyl-ammonium silicate. The pore dimensions approximately were 6 angstrom for silicalite-1 and 11 angstrom for silicalite-2 units. The silicalite-1 was prepared hydrothermally at a pH of about 10 from a reaction mixture consist of water, amorphous silica and a ...