CeO2-stabilised ZrO2 nanoparticles with excellent sintering performances synthesized by sol-gel-flux method

2021 ◽  
Author(s):  
Nan Li ◽  
Nuoting Yu ◽  
Zhongzhou Yi ◽  
Di An ◽  
Zhipeng Xie
Keyword(s):  
Sol Gel ◽  
Zro2 Nanoparticles ◽  
Flux Method

scholarly journals Development of Silane-Based Coatings with Zirconia Nanoparticles Combining Wetting, Tribological, and Aesthetical Properties

Coatings ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 368 ◽  
Author(s):  
Sara Lopez de Armentia ◽  
Mariola Pantoja ◽  
Juana Abenojar ◽  
Miguel Martinez
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Sol Gel ◽  
Dip Coating ◽  
Zro2 Nanoparticles ◽  
High Wear Resistance ◽  
Surface Protection ◽  
Main Research ◽  
Aesthetic Appearance ◽  
Zirconia Nanoparticles

Silane-based coatings with nanoparticles have been widely used in applications related to surface protection. Between them, the improvement of corrosion resistance by increasing the hydrophobicity is one of the main research goals. However, most coatings present problems of low wear resistance and poor aesthetic appearance. Therefore, the overall goal of this research is to manufacture hydrophobic sol-gel coatings based on silanes which comply with good tribological and aesthetical properties. In the present study, stainless steel plates were coated with a silane-based solution containing zirconia nanoparticles by dip coating. Water–ethanol solutions with silanes (methyltrimethoxysilane (MTS) and tetrathoxysilane (TEOS)) and different percentages of ZrO2 nanoparticles were prepared. Gloss, color, contact angle, surface energy, wear resistance, and thickness of coating were analyzed to elucidate the effect of zirconium oxide on the performance of the coatings. Results demonstrate that the ZrO2–silane coatings on stainless steel offer a balanced combination of properties: low wettability, high wear resistance, and similar color and brightness compared to pristine stainless steel.

Synthesis of 2,3-dihydroquinazolin-4(1H)-ones catalyzed by Perchlorated Zirconia (HClO4/ZrO2) nanoparticles as a novel solid acid catalyst

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Seyed Yousef Mosavian
Keyword(s):  
Solid Acid ◽  
Condensation Reaction ◽  
Solid Acid Catalyst ◽  
Sol Gel ◽  
Acid Catalyst ◽  
Catalytic Performance ◽  
Acid Sites ◽  
Zro2 Nanoparticles ◽  
Calcination Temperatures ◽  
Aldehydes And Ketones

Zirconia was synthesized in nanosize by sol-gel method and perchlorated zirconia (HClO4/ZrO2) with various calcination temperatures were prepared and characterized by XRD, FTIR and SEM techniques. The catalyst acidity characters, including the acidicstrength and the total number of acid sites were determined by potentiometric titration. The catalytic performance experiments show that the HClO4/ZrO2 with calcination temperature of 300 °C has the best catalytic activity. 2,3-Dihydroquinazolin-4(1H)-ones wereprepared in good to excellent yields via condensation reaction of oaminobenzamide and various types of aldehydes and ketones in the presence of HClO4/ZrO2 nanoparticles as an efficient solid acid catalyst. The catalyst is reusable with moderate loss in activity.

scholarly journals Effects of precursor on the morphology and size of ZrO2 nanoparticles, synthesized by sol-gel method in non-aqueous medium

2012 ◽  
Vol 15 (6) ◽  
pp. 986-989 ◽  
Author(s):  
Mohammed Rafiq Hussain Siddiqui ◽  
Abdulaziz Ibrahim Al-Wassil ◽  
Abdullah Mohmmed Al-Otaibi ◽  
Refaat Mohamad Mahfouz
Keyword(s):  
Aqueous Medium ◽  
Sol Gel ◽  
Zro2 Nanoparticles ◽  
Gel Method ◽  
Sol Gel Method

Synthesis and characterization of scratch-resistant hybrid coatings based on non-hydrolytic sol-gel ZrO2 nanoparticles

2017 ◽  
Vol 103 ◽  
pp. 60-68 ◽  
Author(s):  
Francesca Tana ◽  
Massimo Messori ◽  
Davide Contini ◽  
Alberto Cigada ◽  
Teodoro Valente ◽  
...  
Keyword(s):  
Sol Gel ◽  
Hybrid Coatings ◽  
Synthesis And Characterization ◽  
Zro2 Nanoparticles
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