DTA/TG, IR, EPR and XPS studies of some praseodymium(III) tungstates

Formation of Ag Nanoparticles on β-Ag2WO4 through Electron Beam Irradiation: A Synergetic Computational and Experimental Study

“…Several values near these values have been reported (see Table ), and we assumed that this broadness is the result of an overlapping of different vibration modes from both [WO 4 ] and [WO 5 ] clusters. The vibration band with their maxima recorded at 599 cm –1 may be due to the deformation of W–O bonds in [WO 5 ] clusters . As previously reported in β-Ag 2 WO 4 , the IR-active vibrational modes with maxima at 538 and 588 cm –1 may be due to symmetric bending vibrations modes in an isolated WO 4 2– tetrahedron. , …”

Dielectric properties of RE2W2O9 (RE=Pr, Sm–Gd) ceramics

“…The raw materials were dried at 1073 K for 8 h to remove any moisture, and weighed according to each respective stoichiometric formula. After homogenization in an agate mortar, the resulting mixtures were heated in porcelain crucibles, in air, and under thermal conditions applied by us in previous studies [14,16,17]. The synthesis of tungstates under study can be described by the following chemical equations:…”

Thermal Expansion of Ln6WO12 (Ln = Y,Ho,Er,Yb) and Ln2WO6 (Ln = Gd,Dy,Ho) – an In Situ Synchrotron X‐ray Diffraction Study

“…There are several compositions within the rare‐earth tungstate family which have attracted interest because of promising potential in various fields. Interesting fluorescent, laser, piezo‐ and ferroelectric properties, negative thermal expansion (NTE), high‐temperature proton and electron conductivity, and high thermal and chemical stability have motivated numerous studies related to possible engineering applications. Given the high interest in NTE materials, it is not surprising that the most detailed high‐temperature studies have been focused on the Ln 2 O 3 :3WO 3 (1:3) molar ratio composition .…”