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XPS and some surface characterizations of electrodeposited MgO nanostructure

“…Ho et al . first observed porous surface microstructure of sol–gel prepared MgO thin film on Si(111) substrate from field emission microscopic study, they later realized enhanced grain growth and clear surface microstructure after annealing the sample to ~900 °C for 5 h. Evolution of well‐crystalline structure and grain growth of film had also been achieved as MgO peaks became stronger with annealing temperatures above 700 °C according to literature . It can therefore be seen that suitable temperature at the growth stage of thin film nanostructure is a key factor in determining its orientation .…”

“…Further annealing took place during sample characterization. As a matter of fact, this study intended to investigate if nucleation and growth of well‐oriented crystalline MgO could be achieved at moderate annealing temperature below 400 °C contrary to high growth temperature that had been widely reported by many authors . We were also interested in establishing suitable concentration and cathodic potential for obtaining nanocrystalline MgO from magnesium nitrate solution because in electrodeposition process, surface configuration such as crystal orientation and electrolyte concentration has major influences on the nucleation and crystal growth .…”

“…Several reports have suggested various mechanisms and methods of growing MgO nanocrystals such as vapor deposition, Atomic layer deposition, thermal evaporation/sputtering, pulsed laser deposition, and solution growth but rarely by electrochemical deposition from inorganic compound. Li et al .…”

“…The closest approach to ours was the work on electrodeposition of MgZnO nanostructure reported by Moon and Co‐workers, 2012, where they employed magnesium nitrate as part of their reagents in the making of electrolyte solution. Fu et al . also obtained MgO from mixture of magnesium nitrate and alcohol by sol–gel method.…”

Preparation, structural and optical properties of AWO4 (A = Ca, Ba, Sr) nanofilms

“…It has a good stability and disparity, and is commonly used in medicine and industry fields [17,18]. Recently, it has been used as an additive in the sol-gel system to prepare MgO thin films [19]. In this work, a simple technique for the preparation of AWO 4 (A = Ca, Ba, Sr) nanofilms is firstly brought forward using collodion as a dispersant and film-forming agent.…”