Optical and electrical properties of Fe3O4@MoS2 nanocomposites and doped lead boron tellurite glass

Construction of MoO2 Ultra-uniformly Coated FeS2 with Tailored Interfacial Traits toward Improved Energy Storage

“…To further measure the functional groups of a series of FeS 2 @MoO 2 (Fe–Mo-1, Fe–Mo-2, and Fe–Mo-3), their FT-IR spectra were recorded and are depicted in Figure d. The peaks at 1090, 595, and 934 cm –1 were derived from Fe–S, S–S, and Mxe5fbO, respectively, demonstrating the successful formation of FeS 2 @MoO 2 composites. , Likewise, the peak located at 559 cm –1 came from the vibration of Fe–O–Mo, mainly ascribed to the formed Fe–O–Mo interfacial bonds. − In the spectra of Fe–Mo-2 and Fe–Mo-3, the peak at 466 cm –1 could be found, which was related to the vibration of Mo–S, perhaps derived from the formation of MoS 2 . , Compared to the functional groups of Fe–Mo-1, abundant groups could be noted in Fe–Mo-2 and Fe–Mo-3, which could offer more electron pairs, further providing abundant active and adsorption sites for polysulfides, accompanied with the fast adsorption/desorption of electrons. Further exploring the interfacial bonds of FeS 2 @MoO 2 , the obvious signals at g = 2.003 could be observed by the ESR spectrum in Figure e, verifying the existence of sulfur vacancies.…”

Cerium (IV) oxide reinforced Lithium-Borotellurite glasses: A characterization study through physical, optical, structural and radiation shielding properties

“…TeO 2 glasses synthesized with binary, ternary and more component compositions have become the focus of glass synthesis processes due to their low phonon energies, high refractive indices, high thermal stabilities and high transmittances in the UV-Vis and IR regions, [8]. Furthermore, electrical, optical, and structural properties of boro-tellurite glasses, which have specific applications such as glass structures with magnetic properties, are among the main topics in the literature [11,12]. The structural, thermal, and optical characteristics of different tellurite-based glasses (TeO 2 -V 2 O 5 or B 2 O 3 -TeO 2 ) doped with lanthanide group elements (Yb 3+ , Eu 3+ , Ho 3+ , Gd 3+ , Dy 3+ , Er 3+ ) have shown some surprising findings for technological applications [13][14][15].…”