We synthesized a series of modified Co-ZIF-67 materials with tunable morphology to support fine Au nanoparticles for the alkali-free aerobic oxidation benzyl alcohol. Structure promotion was performed using Stöber silica as hard template, which subsequently removed by NaOH etching before gold immobilization. The texture structure Au/(Si)C greatly improved increasing surface area and volume. CoO...

We describe an in situ facile synthetic approach to prepare carbon quantum dot (CQD) fluorescent markers (FMs) for polyethylene (PE) the presence of agglomerated silica nanoparticles (SiO2 NPs) under mild reaction conditions. First SiO2 NPs, prepared by Stöber method, were dispersed toluene. This dispersion was added a PE solution After heating (either air or Ar) mixture obtained. drying, films...

Iron oxide magnetic nanoparticles were synthesized with different sizes (11 and 30 nm). Subsequently they shelled a silica layer allowing grafting of an organic phosphine ligand that coordinated to the [MoI2(CO)3] organometallic core. The was prepared by Stöber method using either mechanical (both 11 nm nanoparticles) or ultrasound (30 only) stirring. latter once coated obtained less aggregatio...

Magnetic g-Fe2O3@SiO2 core-shell nanocomposite was prepared using Stöber method and functionalized firstly by isopropenyloxytrimethylsilane as a coupling agent to enter active acetylacetone on the surface of nanoparticles, after that synthesized azo dye ligand, 2-(2-benzothiazolyl azo)-4-methoxyaniline. In such way, g-Fe2O3@SiO2-azo hybrid formed. The structure evidenced physical chemical analy...

Electrochemical energy storage (EES) devices are expected to play a critical role in achieving the global target of “carbon neutrality” within next two decades. Potassium-ion batteries (KIBs), with advantages low cost and high operating voltage, they could become major component required energy-material ecosystems. Carbon-based materials have shown promising properties as anode for KIBs. Howeve...