Influence of hydrothermal conditions on the morphology and particle size of zinc oxide powder

Synthesis of Gallium Oxide Hydroxide Crystals in Aqueous Solutions with or without Urea and Their Calcination Behavior

“…These researchers concluded that the morphology of goethite crystals was chiefly a function of the pH of the system 61 and showed morphologic variations along the pH scale. However, it is quite interesting to mention here that a similar ellipsoidal particle morphology was detected by Lu et al 62 during the hydrothermal synthesis of zinc hydroxide powders from zinc nitrate solutions titrated with NH 4 OH.…”

Synthesis of Silver-Doped Zinc Oxide Nanocomposite by Pulse Mode Ultrasonication and Its Characterization Studies

“…ZnO has attracted intensive research effort for its unique properties and versatile applications in transparent electronics, chemical sensors, and spin electronics [2][3][4][5][6][7][8]. A variety of metal oxides like zinc oxide, titanium dioxide (TiO 2 ), and silicon dioxide (SiO 2 ) and different techniques such as chemical coprecipitation [9,10], sol-gel process [11,12] chemical vapour deposition [13], thermal decomposition [14,15], hydrothermal synthesis [16,17], solidstate reaction [18], spray pyrolysis [19], vapour-liquid-solid method [20], and microemulsion precipitation [21][22][23] have been used so far. Hingorani et al also reported the synthesis of ZnO nanoparticles (NPs) and it was the first study using reverse microemulsion in the early 1990s [24,25].…”

Effect of reducing agents on the structure of zinc oxide under microwave irradiation

“…Among which, ZnO has wide applications in the areas such as solar cells [2][3][4], catalysis [5,6], sensors [7], laser diodes [8] and varistors [5,9]. Various techniques had been employed for the synthesis of the nano/micro structured ZnO such as sol-gel process [10], homogeneous precipitation [5], thermal decomposition [11], microwave heating [12], conventional hydrothermal [13][14][15], etc. Compared with the conventional heating methods, the microwave heating has many advantages of developing small particles of metal oxides with nano or micro sizes and better purity in short time [16][17][18][19].…”