IR and ESR studies of CuO substituted for PbO in eutectic lead vanadate glass system

Electrical and Spectroscopic Studies of the CdO Substituted Lead Vanadate Glass System vs Crystalline Form

“…It can be seen from the conductivity studies that conductivity is reduced in CdO substituted samples. A similar result was observed by Ramesh in ZnO substituted lead vanadate glass system and it has been observed that there is some residual hyperfine interaction in ZnO substituted samples [24]. But in CdO substituted samples, the residual hyperfine interaction is more pronounced.…”

“…Recently Ramesh and Sastry carried out the work in the field of semi conducting glasses to understand the effect of different oxide groups in the place of PbO in PbO-V 2 O 5 glass system chosen at the eutectic composition i.e. 1:1 molar ratio with the substitution of ZnO, CuO and TiO 2 in the place of PbO of PbO-V 2 O 5 eutectic glass composition which can be represented as follows, by the general formula XMO:(50-x)PbO:50V 2 O 5 , where MO is the substituted metal oxide [3][4][5][6]. In all compositions x varied as 0, 5, 10 and 15 mole%.…”

Tailoring the metal introduction sequence onto mesostructured silica nanoparticles framework: Effect on physicochemical properties and photoactivity

“…The ESR spectra in Fig. 5C shows that 3C-ZM had a higher resonance signal at g = 2.06 and 2.01 than Z-3CM, representing the presence of more prominent intrinsic defects, which are oxygen vacancies in the catalyst [42,43]. This provided an advantage to 3C-ZM, as a higher amount of oxygen vacancies, is associated with improved electron-hole separation, in which the oxygen vacancies acted as electron acceptors that enhanced the photoactivity.…”

DC Electrical Conductivity Studies of GeO<sub>2</sub> Doped Lead Vanadate Glass System

“…DSC recordings of the GeO 2 -PbO-V 2 O 5 glass systems are shown in Figure 2. These are different when compared to those of the unsubstituted system [13]. Values of glass transition temperature T g , crystallization temperature T c , melting temperature T m , and glass forming tendency K g obtained from the DSC recordings are given in Table 1.…”