GeO2 Encapsulated Ge Nanostructure with Enhanced Lithium‐Storage Properties
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201807946
Abstract: Germanium (Ge)‐based nanostructures, especially those with germanium dioxide (GeO2), have drawn great interest for applications in lithium (Li)‐ion batteries due to their ultrahigh theoretical Li+ storage capability (8.4 Li/Ge). However, GeO2 in conventional Ge(s)/GeO2(c) (where… read more here.
Keywords: nanostructure; storage; encapsulated nanostructure; nanostructure enhanced ... See more keywords
Unique Role of GeO2 as a Noninvasive Promoter of Nano‐Sized Zeolite Crystals
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202205885
Abstract: The synthesis of zeolites with nano‐sized dimensions is often limited to a narrow design space that conventionally relies upon the design of organics to direct hierarchical materials. Here, it is demonstrated that the addition of… read more here.
Keywords: geo2 noninvasive; role geo2; geo2; nano sized ... See more keywords
Self-Optimizing Effect in Lithium Storage of GeO2 Induced by Heterointerface Regulation.
Sign Up to like & getrecommendations! Published in 2021 at "Small"
DOI: 10.1002/smll.202106067
Abstract: Herein, a heterostructural hexagonal@tetragonal GeO2 (HT-GeO2 ) composite has been designed based on density functional theory (DFT) calculations and synthesized via an acidic-heating route dealt with rapid cooling, where the inner hexagonal GeO2 (H-GeO2 )… read more here.
Keywords: storage; optimizing effect; effect lithium; geo2 ... See more keywords
Dielectric and electromagnetic interference shielding properties of germanium dioxide nanoparticle reinforced poly(vinyl chloride) and poly(methylmethacrylate) blend nanocomposites
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-018-0150-6
Abstract: Germanium dioxide (GeO2) nanoparticles reinforced poly(vinyl chloride) (PVC) and poly(methyl methacrylate) (PMMA) blend nanocomposite films were prepared using solution casting technique. The PVC/PMMA/GeO2 nanocomposite films were characterized by FTIR—Fourier transform infrared spectroscopy, XRD—X-ray diffraction and… read more here.
Keywords: microscopy; germanium dioxide; reinforced poly; geo2 ... See more keywords
Metallic hollow waveguide based on GeO2–NaOH precursor solution for transmission of CO2 laser radiations
Sign Up to like & getrecommendations! Published in 2018 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-018-1662-2
Abstract: By using the GeO2–NaOH precursor solution, the hexagonal structural GeO2 reflective films with high flatness were grown on the inner wall of stainless steel (SUS) capillary tubes by liquid phase deposition method. XRD and SEM… read more here.
Keywords: transmission; geo2; precursor solution; hollow waveguide ... See more keywords
Influence of Ge and GeO2 on the microstructure and varistor properties of TiO2–Ta2O5–CaCO3 ceramics
Sign Up to like & getrecommendations! Published in 2017 at "Ceramics International"
DOI: 10.1016/j.ceramint.2016.09.141
Abstract: This study investigated the effect of elemental crystal Ge or/and GeO2 doping on the microstructure and varistor properties of TiO2–Ta2O5–CaCO3 varistor ceramics, which were prepared via the traditional ball milling–molding–sintering process. X-ray diffraction, scanning electron… read more here.
Keywords: microscopy; tio2 ta2o5; ta2o5 caco3; spectroscopy ... See more keywords
Effect of introduction of TiO2 and GeO2 oxides on thermal stability and 2 μm luminescence properties of tellurite glasses
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.05.171
Abstract: Abstract In this paper, Tm3+ doped pure tellurite glass, TiO2 modified tellurite glass and TiO2/GeO2 co-modified tellurite glasses were prepared. The effects of the introduction of TiO2 and GeO2 oxides on the thermal, structural, optical… read more here.
Keywords: tellurite glasses; introduction tio2; tio2; geo2 ... See more keywords
A comparative study on gamma photon shielding features of various germanate glass systems
Sign Up to like & getrecommendations! Published in 2019 at "Composites Part B: Engineering"
DOI: 10.1016/j.compositesb.2019.02.022
Abstract: Abstract In this paper, we studied the gamma photon attenuation properties for different germanate glasses systems with composition Sb2O3–GeO2–SiO2–Al2O3, TeO2–WO3–GeO2, GeO2–TeO2/SiO2–PbO–CaO–Tm2O3 and B2O3–GeO2–Gd2O3–Eu2O3–GdF3–BaF2. The mass attenuation coefficients (μ/ρ) for the selected germanate glasses were calculated… read more here.
Keywords: gamma photon; geo2; glass; sio2 ... See more keywords
Statistical structure analysis of GeO2 modified Yb3+: Phosphate glasses based on Raman and FTIR study
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2016.12.175
Abstract: Abstract Structural modification of conventional Yb3+ doped phosphate glass by GeO2 was shown to significantly improve both thermal and spectroscopic properties, namely, transition temperature, coefficient of thermal expansion, effective line width, Stark splitting, and fluorescence… read more here.
Keywords: raman; structure analysis; statistical structure; structure ... See more keywords
Optical properties in the infrared range of the birefringent α-GeO2 single crystal
Sign Up to like & getrecommendations! Published in 2020 at "Materials Research Bulletin"
DOI: 10.1016/j.materresbull.2020.110881
Abstract: The components of the frequency-dependent complex refractive index were determined indirectly for the new non-centrosymmetric α-GeO2 crystal using polarized Fourier transform infrared reflectivity spectra measured in the far- and mid-infrared spectral region at room temperature.… read more here.
Keywords: properties infrared; infrared range; optical properties; geo2 ... See more keywords
High capacity binder-free nanocrystalline GeO2 inverse opal anodes for Li-ion batteries with long cycle life and stable cell voltage
Sign Up to like & getrecommendations! Published in 2018 at "Nano Energy"
DOI: 10.1016/j.nanoen.2017.11.007
Abstract: Abstract We demonstrate that crystalline macroporous GeO2 inverse opals exhibit state-of-the-art capacity retention, voltage stability and a very long cycle life when tested as anode materials for Li-ion batteries. The specific capacities and capacity retention… read more here.
Keywords: voltage; long cycle; capacity; cycle life ... See more keywords