Protective effect in sulfuric acid media of alumina and ceria oxide layers electrodeposited on stainless steel

Novel Sol-Gel Methods for Preparation of Ceramic-Oxide Coatins

“…Recently, much attention has been attracted to this technique by many other researchers. [19][20][21][22][23] Our experimental results demonstrate that, during electrochemical process, the basicity on the surface region of the cathode is increased, leading to the formation of hydroxide sol-gel films on its surface. For example, a sol-gel film can be formed on the cathode surface in ethanol solution containing 0.005 M Al(NO 3 ) 3 ·9H 2 O. IR-RAS analysis did not detect any organic functional groups except hydroxyl and nitrate ion in the as-deposited film, but the analysis combined with SEM, XRD, XPS and EDS showed that the as-deposited film consisted of a hydroxide with some nitrate from the solution; and the sintered film at an elevated temperature contained an aluminum compound only, because the nitrate has decomposed at high temperatures.…”

Facile Synthesis and Characterization of CuO–CeO2 Nanostructures for Photocatalytic Applications

“…Moreover, it is reported that nanocomposites of CeO 2 with other oxides have substantial redox property with high catalytic performance and is attributed to the active centers produced at CeO 2 and oxide interfaces. [2,14] Although CeO 2 is a good semiconducting photocatalyst, the vast bandgap energy is the main restriction to its applications in the visible region. Therefore, the desire to use whole visible spectra appeals to the formation of composites and heterojunction structures to get bandgap tunability for efficient photocatalysts.…”

The fabrication and characterization of CeO2/Cu2O nanocomposites with enhanced visible-light photocatalytic activity

“…The researchers reported that deposition of CeO 2 by other oxides led to a stronger redox property and high catalytic activity attributed to the formation of interfacial active centers between CeO 2 and oxide. 24 On the other hand, nanoscale crystals of CeO 2 generally exhibit higher interfacial density, which generates a large number of carriers to promote oxidizability. 25 In this study, we have successfully synthesized spherical Cu 2 O nanocrystals and deposited CeO 2 nanoparticles on their surface.…”