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...

The selection and assembly of materials are central issues in the development of smaller, more flexible batteries. Cobalt oxide has shown excellent electrochemical cycling properties and is thus under consideration as an electrode for advanced lithium batteries. We used viruses to synthesize and assemble nanowires of cobalt oxide at room temperature. By incorporating gold-binding peptides into ...

The morphology and magnetic properties of diblock copolymer templated ferrimagnetic cobalt oxide nanoparticles are reported. Ring opening metathesis polymerization (ROMP) was used to synthesize a novel cobalt diblock copolymer, where cobalt is directly attached to the polymer chain. Gel permeation chromatography (GPC) was performed to determine molecular weight distribution. Transmission electr...

The development of sustainable, ecofriendly, and cost-effective methods for the synthesis nanomaterials is an important aspect nanotechnology these days. present study was aimed at synthesizing cobalt oxide (Co3O4) nanoparticles by using plant extracts Aerva javanica, bacterial isolates from rhizospheric soil Potentilla atrosanguinea, Swertia petiolata, Senecio chrysanthemoides, fungus Fusarium...

In this paper, three different morphological Co3O4 electrodes for oxygen evolution reaction (OER) have been synthesized. By comparing the three morphologies of Co3O4, the electrocatalytic properties show that the urchin-like spheres of Co3O4 electrode has relative low overpotential and good electrocatalysis stability, indicating that the structure of urchin-like Co3O4 spheres exhibit an easy OE...

Single crystalline Co3O4 nanocrystals exposed with different crystal planes were synthesised, including cubic Co3O4 nanocrystals enclosed by {100} crystal planes, pseudo octahedral Co3O4 enclosed by {100} and {110} crystal planes, Co3O4 nanosheets exposed by {110} crystal planes, hexagonal Co3O4 nanoplatelets exposed with {111} crystal planes, and Co3O4 nanolaminar exposed with {112} crystal pl...

Graphene (Gr)/metal oxide nanocomposites, as advanced electrode materials, have drawn significant attention in supercapacitors due to their two components' synergistic cooperation, which compensates each other's drawbacks and hence perform better than individual components. In this study, graphene/metal Gr/NiO Gr/Co3O4 binaries were separately synthesized by a co-precipitation method NiO or Co3...

Rapid capacity decay and inferior kinetics are the vital issues of anodes in conversion reaction for lithium-ion batteries. Vacancy engineering can efficiently modulate intrinsic properties transition-metal oxide (TMO)-based electrode materials, but effect oxygen vacancies on performance remains unclear. Herein, abundant situ introduced into lattice different TMOs (e.g., Co3O4, Fe2O3, NiO) via ...

Co3O4-coated commercial TiO2 powders (P25) p-n junction photocatalysts were prepared by plasma-enhanced atomic layer deposition (PEALD) technique. The structure, morphology, bandgap, and photocatalytic properties under ultraviolet light were investigated systematically. Although the deposition of Co3O4 does not change the anatase structure and crystallite size of P25 powders, the ultraviolet ph...

A class of novel nickel cobalt oxide hollow nanosponges were synthesized through a sodium borohydride reduction strategy. Due to their porous and hollow nanostructures, and synergetic effects between their components, the optimized nickel cobalt oxide nanosponges exhibited excellent catalytic activity towards oxygen evolution reaction.