In this work, we developed an eco-friendly strategy for preparing Co3O4 nanowires. The process consisted of two steps: controllable synthesis of metal cobalt nanowires followed by a facile air-oxidization step. The 1D nanowire structure with a high aspect ratio was easily achieved via a magnetic-field-assisted self-assembly of cobalt ion complexes during reduction. After air-calcinations, the C...

In this research an efficient synthesis of a novel nanocomposite including SiO2@(3-aminopropyl)triethoxysilane-coated cobalt oxide (Co3O4) nanocomposite has been reported by three step method. The structure and magnetic characterization of Co3O4@SiO2@NH2 have been done by using various spectroscopic analyses which include FT-IR, X-ray powder diffraction, scanning electron microscopy, transmissi...

In this study, to fabricate a carbon free (C-free) air electrode, Co3O4 nanofibers were grown directly on a Ni mesh to obtain Co3O4 with a high surface area and good contact with the current collector (the Ni mesh). In Li-air cells, any C present in the air electrode promotes unwanted side reactions. Therefore, the air electrode composed of only Co3O4 nanofibers (i.e., C-free) was expected to s...

A key challenge for rechargeable metal–air batteries is the development of a cost-effective bifunctional catalyst for both oxygen evolution (OER) and reduction (ORR) reactions. Here, we took the advantages of high OER activity of Co3O4 spinel and high ORR activity of Ag to develop a carbon-free oxygen electrode, e.g., for Li–air batteries. The optimized Ag + Co3O4 catalyst was further character...

BACKGROUND The Prussian blue analogues represent well-known and extensively studied group of coordination species which has many remarkable applications due to their ion-exchange, electron transfer or magnetic properties. Among them, Co-Fe Prussian blue analogues have been extensively studied due to the photoinduced magnetization. Surprisingly, their suitability as precursors for solid-state sy...

Water pollution is a serious concern for developing and undeveloped countries. Photocatalytic degradation of organic pollutants an effective method to restrain the green ecosystem. This research article presents green, low-cost, benevolent eco-friendly biosynthesis cobalt oxide (Co3O4) nanoparticles using Curcuma longa plant extract. The UV visible region absorbance Co3O4 estimated Co2+ Co3+ tr...

With the mass production of engineered nanoparticles, risk assessment efforts are in need of platforms that offer predictive value to human health and environment, and also possess high throughput screening capacity. Scientists, when turning to a model-organism to help answer genetic questions that cannot be easily addressed in humans, often chose the zebrafish (Danio rerio). Zebrafish share th...

Among all type of batteries, Lithium Air Batteries (LAB) are considered to be the most effective due their highest energy density around 11900 Wh/kg but there some major issues being faced by LAB such as large overpotential, poor cycle life, low current density, and decreased efficiency. The solution these is primarily dependent on proper selection an electrocatalyst. A new approach for using a...

Electrochemical partial reforming of organics provides an alternative strategy to produce valuable organic compounds while generating H2 under mild conditions. In this work, highly selective electrochemical reforming of ethanol into ethyl acetate is successfully achieved by using ultrathin Co3O4 nanosheets with exposed (111) facets as an anode catalyst. Those nanosheets were synthesized by a on...