Hydrothermal growth of zirconia nanobars on zirconium oxide

The performance improvement of Zr conversion coating through Mn incorporation: With and without organic coating

“…In Fig. 8b, the peaks at lower binding energy (180.4, 182.4, 182.8 eV) can be attributed to Zr 3d 5/2 which may correspond to ZrO [42,43]. The peak at the binding energy of 183.3 eV can be assigned to Zr 3d 5/2 and the other two peaks at the higher binding energies of 184.8 and 185.3 eV are attributed to Zr 3d 3/2 and all these three peaks correspond to Zr 4+ in ZrO 2 [44].…”

Review: monoclinic zirconia, its surface sites and their interaction with carbon monoxide

“…The preparation methods differ from traditional wet chemistry to prepare monoclinic zirconia powders. Nanorods have been prepared hydrothermally 16,17 in an autoclave, resulting in nanorods of various sizes, the diameter in general some tens of nanometers and the length a few hundred nanometers, and the length-…”

“…Since 2006, monoclinic zirconia has been prepared also in nanoshapes, including nanorods 16,17 and nanosheets 16 . Using the nanoshapes in catalysis might be beneficial due to their well-defined surface sites; thus their selectivity might be more easily linked to the exposed surfaces than those of traditional catalysts in polycrystalline form.…”

Synthesis of ZrO2 nanoparticles by hydrothermal treatment

“…The particle size increased with an increase in concentration. The increasing precursor concentration might cause an increasing particle growth [9]. It also can be seen that at high concentration, particles can be separated.…”

“…Several techniques are available for producing zirconia nanoparticles, such as sol/gel method [4], vapor phase method [5,6], pyrolysis [1], spray pyrolysis [7], hydrolysis [8], hydrothermal [9], and microwave plasma [10]. Hydrothermal synthesis was reported to be a soft chemical route with important advantages due to low crystallization temperatures enabling directly production of nanocrystalline powders without any firing step and high degree of precipitation reducing the content of metal ions in effluents with respect to environmental regulations.…”