Shape-regulated synthesis of cobalt oxide and its gas-sensing property

Nickel–cobalt hydroxide nanoflakes conformal coating on carbon nanotubes as a supercapacitive material with high-rate capability

“…After filtration and washing with water for several times, a chemical bath deposition (CBD) method was carried out [34]. The collected CNTs were dispersed into a 500 mL 0.01 mol L À1 nickel sulphate solution.…”

H2S and NH3 adsorption characteristics on CoO nanowire molecular device – A first-principles study

“…It is well known that both H 2 S and NH 3 belong to reducing gas, when adsorbed on p-type CoO nanowire molecular device; the resistance increases, which in turn decreases the current flowing across the CoO nanowire [31].…”

“…Xu et al reported hierarchical and hexagonal cobalt oxide as ethanol and acetone sensor. Since both ethanol and acetone belongs to reducing vapours similar to H 2 S and NH 3 gas [31], the response shows an increase in resistance when the concentration increases. Wollenstein et al studied cobalt oxide based gas sensors on a silicon substrate [16].…”

Influence of the cobalt nitrate:ethylene glycol molar ratio on the formation of carboxylate precursors and cobalt oxides

“…Due to their exceptional attributes and reduced dimensions, they can be exploited in a large range of fields [1]. Cobalt oxides are important materials with a wide array of applications, such as, catalysts [2,3,4,5,6], different kind of sensors [7,2,4,5], lithium ion batteries [8,7,5], optoelectronic devices [9,10], combustion of hydrocarbons at gas purification [11], supercapacitors [12,13], Fisher-Tropsh syntheses [14] and biomedical sciences [1,7,12]. Cobalt oxides obtained as nanoparticles present a particular interest due to their different properties compared to the bulk material.…”