Superhydrophobic and H₂S gas sensing properties of CuO nanostructured thin films through a successive ionic layered adsorption reaction process

Abstract

Superhydrophobic surfaces of CuO were synthesized using a successive ionic-layered adsorption reaction technique by varying the number of deposition cycles followed by a thermal annealing process.

Analysis on superhydrophobic silver decorated copper Oxide nanostructured thin films for SERS studies

“…1. The detailed experimental procedure and reaction mechanism have been discussed in the previous work [20]. The successive cycles and the increase in the deposition times led to an increase in thickness of the deposited film.…”

“…Silver was deposited for SERS studies using thermal evaporation from a helical coil onto the CuO nanostructure for a deposition time of 2 min. The film was annealed at 200°C and silver were again deposited; the desired parameter was chosen from the previous publication and resulted in the formation of silver decorated nanoflower like structure [3,20]. The thickness of the deposited silver film was recorded using a quartz crystal thickness monitor.…”

“…Synthesis of cupric oxide thin films using SILAR method Superhydrophobic surfaces of Copper Oxide (CuO) nanostructures have been designed by SILAR process as reported for Zinc Oxide (ZnO) [19] and CuO in our previous work [20]. The procedure for this method is schematically represented in Fig.…”

Effect of Platinum Doping on the Morphology and Sensing Performance for CuO-Based Gas Sensor

“…The released electrons during this process will recombine with the holes on the surface of CuO and cause the decrease of hole concentration, which will lead to an increased resistance of the gas sensor. According to some previous reports [41,42], a CuS layer might form on the surface of the CuO, when the sensor is exposed to high H 2 S concentrations, the spontaneous chemical reaction is as shown in Equation (6), as follows:…”

Influence of Oxalate Concentration and Temperature on the Microstructure Morphology of Nano Anodized Copper Coating

“…Development of copper oxide coating recently was demanded in many fields of scientific applications like gas detection sensors [1], hydrophobic surfaces [2], solar cells [3], energy storage [4], high temperature superconductors, magneto resistance materials [5] and memory devices [6]. Anodic polarization process is associated with electrochemical oxidation reactions that occur on the anode.…”