Heterostructured nanowires, such as core/shell nanowires and nanoparticle-decorated nanowires, are versatile building blocks for a wide range of applications because they integrate dissimilar materials at the nanometer scale to achieve unique functionalities. The sol-flame method is a new, rapid, low-cost, versatile, and scalable method for the synthesis of heterostructured nanowires, in which ...

In this research work, we report a simple method called reflux condensation method for synthesizing Co3O4 nanoparticles using cheap chemicals such as, cobalt acetate (precursor salt), sodium monododecyl sulphate - SDS (surfactant) and N, N - Dimethylformamide - DMF (solvent). The prepared materials were heat treated at 200, 400, 600 and 800 oC for each 2 h to get phase pure product. The calcine...

The synthesis of Co and Ce oxide nanoparticles using precipitation precursor salt solutions in the form microdroplets generated with a nebulizer proved to be an efficient, fast inexpensive method. Different morphologies single oxides particles were obtained. Ceria almost cube-shaped 8 nm average size, forming 1.3–1.5 μm aggregates, whereas cobalt appeared as rounded-edged 37 mainly nanorods 50–...

In recent years, supercapacitors have been developed rapidly as a rechargeable energy storage device. And the performance of is depending on electrode materials, preparation method and materials become primary goal scientific development. This study synthesizes Co3O4@MnO2@PPy cathode material with porous pattern core-shell structure by hydrothermal electrodeposition. The result samples are char...

Novel flower-shaped C-dots/Co3O4{111} with dual-reaction centers were constructed to improve the Fenton-like reaction activity and peroxymonosulfate (PMS) conversion sulfate radicals. Due exposure of a high surface area Co3O4{111} facets, could provide more Co(II) for PMS activation than traditional spherical Co3O4{110}. Meanwhile, was preferred adsorption on facets because energy thereby facil...

The rational design of cost effective and highly efficient oxygen evolution reaction (OER) catalysts plays an extremely important role in promoting the commercial applications electrochemical water splitting. Herein we reported a sacrificial template strategy for preparation borate anion doped Co3O4@ZIF-67 nanocages assembled with nanosheets (B-Co3O4@ZIF-67) by hydrothermal boronation zeolitic ...

Abstract Long-term stability and selectivity are crucial for the practical application of gas sensors, which closely related to microstructure composition sensor materials. In this work, Co-based metal organic framework (MOF) is used as a precursor prepared by simple hydrothermal method. After calcination, series Co3O4 nanospheres with various microstructures derived. When calcination temperatu...

Sunlight responsible mono- and co-doped TiO2 nanoparticles (Con+ Fen+) were prepared via sol–gel technique. The X-ray diffraction (XRD) results showed no phase change of was observed after the addition Con+ Fen+ ions. Diffuse reflectance spectra (DRS) a significant red-shift absorption edge doping by Con band gap energy reduced sharply from 3.10 to 1.72 eV. photoelectron spectroscopy (XPS) emph...