High gas-sensor and supercapacitor performance of porous Co₃O₄ ultrathin nanosheets

Abstract

Porous Co3O4 ultrathin nanosheets exhibited good sensitivity and low concentration selectivity to ethanol.

Two‐Dimensional Metal Oxide Nanomaterials for Next‐Generation Rechargeable Batteries

“…Due to their unique electronic and magnetic properties, Co 3 O 4 nanomaterials have been widely used in applications involving catalysis, [157][158][159] magnetic materials, [160] electroreduction, [161] sensors, [162][163][164][165] and capacitors. Due to their unique electronic and magnetic properties, Co 3 O 4 nanomaterials have been widely used in applications involving catalysis, [157][158][159] magnetic materials, [160] electroreduction, [161] sensors, [162][163][164][165] and capacitors.…”

High-rate-capability asymmetric supercapacitor device based on lily-like Co3O4nanostructures assembled using nanowires

“…Compared with those in previous studies (Table 1), the specic capacitance and cycling performance at high current density is notably improved. [48][49][50][51][52][55][56][57] The asymmetric supercapacitor device was further assembled with the as-prepared Co 3 O 4 /Ni and active carbon (Co 3 O 4 / Ni//AC). The electrochemical performance was evaluated and the results are shown in Fig.…”

Role of cobalt cations in short range antiferromagnetic Co3O4 nanoparticles: a thermal treatment approach to affecting phonon and magnetic properties

“…In the last decade, research on the effects of the finite size on the structural, optical and magnetic properties of Co 3 O 4 have attracted enormous attention because of its wide range of important potential applications as a gas sensor 1 , data storage 2 , magnetic semiconductors 3 , electrochemical devices 4 , heterogeneous catalysts 5 , anode materials in Li-ion rechargeable batteries 6 , solid-state sensors 3 , solar energy absorbers, pigments 7–9 etc. The functioning of all these devices is strongly influenced by the different sample synthesis methods 3 , point defects (such as cation or anion vacancies) 10 , their morphology (such as nanobelts, nanorods, nanospheres, nanocubes, nanowires and nanoflowers) and nanosized effect 11,12 . Recently, Casas-Cabanas et al .…”