The porous Co3O4 nanowires were fabricated using a fluoride anion-assisted hydrothermal and controlled annealing route. The nanowires showed superior CO gas-sensing performances, such as high selectivity against CO and optimal sensing activity at a relatively low operating temperature (Top ≤ 100 °C). Such properties were ascribed to fluoride doping and porous nanowire structure.

The highly ordered mesoporous Co3O4-Al2O3 bimetal oxide, prepared by a nano-casting method, was modified with Sn promoter (denoted as Sn/m-CoAlOx) to enhance selectivity liquid-hydrocarbons well suppress CO2 formation formed water gas-shift (WGS) reaction activity during CO hydrogenation hydrocarbons (Fischer–Tropsch Synthesis (FTS) reaction). Based on the surface properties of Sn/m-CoAlOx in r...

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...

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...

Theoretical analysis and Computer simulations have proven to be cost-effective and powerful tools in scientific studies of materials, particularly at nano-scale where synthesis of nano-structures, interpretation of their observed character and exploration of new structures are not always straight forward. We present here fundamental principles of techniques used today for computational simulati...

Barium titanate (BaTiO3, BT) was co-doped by solid-state sintering with niobium pentoxide (Nb2O5) and cobalt trioxide (Co3O4) as dopants. The modified barium containing Nb Co (BTNC) larger particle size (0.5–1 μm) silver powder (Ag) smaller (25 nm) were co-filled polyvinylidene fluoride (PVDF) to prepare (BTNC-Ag)/PVDF three-phase composites. morphology crystal structure of composites character...