Ternary biogenic silica/magnetite/graphene oxide composite for the hyperactivation of Candida rugosa lipase in the esterification production of ethyl valerate [PDF]
, 2021 Oil palm leaves (OPL) silica (SiO2) can replace the energy-intensive, commercially produced SiO2. Moreover, the agronomically sourced biogenic SiO2 is more biocompatible and cost-effective enzyme support, which properties could be improved by the ...
Abdul Wahab, Roswanira +2 more
core +1 more source
Tunnel spin polarization of Ni80Fe20/SiO2 probed with a magnetic tunnel transistor [PDF]
, 2006 The tunnel spin polarization of Ni80Fe20/SiO2 interfaces has been investigated using a magnetic tunnel transistor (MTT). The MTT with a Ni80Fe20/SiO2 emitter shows a magnetocurrent of 74% at 100 K, corresponding to a tunnel spin polarization of the ...
Banerjee, T. +4 more
core +15 more sources
Experimental analysis of SiO2 and CNT nanoparticles effects on the compressive strength of the concrete [PDF]
Analytical and Numerical Methods in Mining Engineering, 2022 This article is focused on the compressive strength of the concrete using silica oxide (SiO2) and carbon nanotube (CNT) nanoparticles. The concrete samples are mixed with a combination of nanoparticles with different percentages.
شهرام قائدی فراموشجان +2 more
doaj +1 more source
Mechanical and Fracture Characterization of Epoxy/PLA/Graphene/SiO2 Composites
Fracture and Structural Integrity, 2023 This work investigated the effects of graphene and SiO2 addition on the mechanical and fracture properties of epoxy (80%) Poly Lactic acid (PLA) (20 %) composites. Epoxy-PLA composites were loaded with graphene and SiO2 (0.1-0.5 wt.
K. Dileep, A. Srinath
doaj +1 more source
High-efficient fabrication of core-shell-shell structured SiO2@GdPO4:Tb@SiO2 nanoparticles with improved luminescence [PDF]
Royal Society Open Science, 2020 SiO2@GdPO4:Tb@SiO2 nanoparticles with core-shell-shell structure were successfully synthesized by a cheap silane coupling agent grafting method at room temperature.
He Bai +9 more
doaj +1 more source
Jurnal Kimia Sains dan Aplikasi, 2023 Zircon is a rare metal natural mineral composed of zirconia and silica. The silica content in zircon can be used as anode material for lithium-ion batteries because of the low cost and high theoretical capacity.
Putri Lestari +5 more
doaj +1 more source
Preparation of SiO2-diamond composites by spark plasma sintering
Journal of Asian Ceramic Societies, 2021 SiO2-diamond composites with 65–85 mass% diamond were fabricated by spark plasma sintering at 1873 K under 130 MPa for 300 s using bimodal diamond particle size of 2 and 25 µm in diameter.
Mettaya Kitiwan +2 more
doaj +1 more source
Mongolian Journal of Chemistry, 2023 A Fenton-like catalyst MnO2-Fe3O4/SiO2 is synthesized via a two-step approach. The prepared composite has a mesoporous structure and a high surface area of 190 m2/g.
Ha Nguyen Manh +3 more
doaj +1 more source
Synthesis of Mesoporous Silica@Co–Al Layered Double Hydroxide Spheres: Layer-by-Layer Method and Their Effects on the Flame Retardancy of Epoxy Resins [PDF]
, 2014 Hierarchical mesoporous silica@Co–Al layered double hydroxide (m-SiO2@Co–Al LDH) spheres were prepared through a layer-by-layer assembly process, in order to integrate their excellent physical and chemical functionalities.
Abdalla M. +61 more
core +1 more source
Characterization and Transformation of Silicon Dioxide Nanoparticles in Aqueous Suspensions: Influence of pH [PDF]
Iranica Journal of Energy and Environment, 2017 Silicon dioxide (SiO2) in nanoscale had been detected as waste product in river water for the past two decades and it is recently proven to have adverse effects toward human and animal health, the ecosystem and water treatment system. The removal of SiO2
T. Y. Yee, M. Omar Fatehah
doaj +1 more source