One-Step Synthesis and Characterization of Silica Nano-/Submicron Spheres by Catalyst-Assisted Pyrolysis of a Preceramic Polymer

Silica nanospheres have attracted tremendous interest due to their importance in extensive applications. However, the direct large-scale fabrication of silica nanospheres with controlled morphology and high purity remains a significant challenge. In this work, silica nano-/submicron spheres were successfully synthesized by a simple method through pyrolysis of an amorphous polysilazane preceramic powder with catalyst FeCl2. The synthesized spheres possess well-designed shape with diameter of 600–800 nm and high purity. The surfaces of the spheres are smooth and clean without any flaws. Besides, the spheres are identified as amorphous silica, and their growth mechanism was also proposed.

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Synthesis and characterization of a new ZIF-67@MgAl2O4 nanocomposite and its adsorption behaviour

RSC Advances ◽

10.1039/d1ra01056e ◽

2021 ◽

Vol 11 (22) ◽

pp. 13245-13255

Author(s):

Mehdi Davoodi ◽

Fatemeh Davar ◽

Mohammad R. Rezayat ◽

Mohammad T. Jafari ◽

Mehdi Bazarganipour ◽

...

Keyword(s):

Room Temperature ◽

Magnesium Aluminate ◽

Synthesis And Characterization ◽

Magnesium Aluminate Spinel ◽

Adsorption Behaviour ◽

Zeolitic Imidazolate Framework ◽

Simple Method

New nanocomposite of zeolitic imidazolate framework-67@magnesium aluminate spinel (ZIF-67@MgAl2O4) has been fabricated by a simple method at room temperature with different weight ratios.

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One-Step Synthesis and Characterization of Reduced Graphene Oxide/Silver Nanoparticles Using Chemical Reaction

Journal of Physics Conference Series ◽

10.1088/1742-6596/1818/1/012209 ◽

2021 ◽

Vol 1818 (1) ◽

pp. 012209

Author(s):

Noora Al-Janabi ◽

Amer K. Al-Nafiey

Keyword(s):

Silver Nanoparticles ◽

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Chemical Reaction ◽

Synthesis And Characterization ◽

Reduced Graphene ◽

One Step

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Synthesis and characterization of a high-purity chiral 5,5'-disulfonato-BINAP ligand and its application in asymmetric hydrogenation of β-keto esters

Molecular Catalysis ◽

10.1016/j.mcat.2021.111562 ◽

2021 ◽

Vol 507 ◽

pp. 111562

Author(s):

Xin Jin ◽

Sen Huang ◽

Fan Wang ◽

Lin Zhu ◽

Hongbing Song ◽

...

Keyword(s):

High Purity ◽

Asymmetric Hydrogenation ◽

Synthesis And Characterization ◽

Keto Esters

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One Step Synthesis and Characterization of Zirconia-Graphene Composites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.600.174 ◽

2012 ◽

Vol 600 ◽

pp. 174-177 ◽

Cited By ~ 1

Author(s):

Jian Fei Xia ◽

Zong Hua Wang ◽

Yan Zhi Xia ◽

Fei Fei Zhang ◽

Fu Qiang Zhu ◽

...

Keyword(s):

Synthesis And Characterization ◽

Two Dimensional ◽

X Ray Diffraction ◽

X Ray ◽

Graphene Composite ◽

Transmission Electron ◽

One Step ◽

Ft Ir ◽

Xrd Techniques

Zirconia-graphene composite (ZrO2-G) has been successfully synthesized via decomposition of ZrOCl2•6H2O in a water-isopropanol system with dispersed graphene oxide (GO) utilizing Na2S as a precursor could enable the occurrence of the deposition of Zr4+ and the deoxygenation of GO at the same time. Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) techniques were used to characterize the samples. It was found that graphene were fully coated with ZrO2, and the ZrO2 existing in tetragonal phase, which resulted in the formation of two-dimensional composite.

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