Article
Biochemistry & Molecular Biology
Danyal Naseer, Jang-Hoon Ha, Jongman Lee, Chanhyuk Park, In-Hyuck Song
Summary: In this study, a high-performance mesoporous alpha-alumina membrane was successfully fabricated using the sol-gel method. The surface properties of the membrane were improved and the membrane achieved the smallest reported pore size for pure alpha-alumina membranes.
Article
Chemistry, Inorganic & Nuclear
Hui Dan, Li Chen, Zhen Li, Xinmiao He, Yi Ding
Summary: Amorphous ZrO2 powders were successfully prepared using a novel hydrothermal-assisted sol-gel method. The obtained powders exhibited features of small and uniform particle size, as well as high purity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Chemical
Akira Miwano, Takehiro Yonezawa, Noriko Yamauchi, Kouichi Nakashima, Yoshio Kobayashi
Summary: The study suggests a new coating technique for thermistors using zirconia, which shows excellent chemical resistance and electrical insulation properties. Pre-silica coating on the substrate can improve the adhesion of ZrO2 films.
Article
Engineering, Biomedical
Feng Wang, Yiran Shao, Congqin Ning
Summary: A ZrO2-Li2Si2O5 ceramic with minimized glass phases was successfully prepared through a sol-gel method and pressureless sintering. The study showed that the densification process of the ceramic was mainly dominated by the growth of Li2Si2O5 grains, and adjusting the Li2Si2O5 content and sintering temperature could control the properties of the samples effectively.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Taranga Dehury, Sandeep Kumar, Chandana Rath
Summary: By doping Pr up to 15 at%, the high-temperature cubic phase of HfO2 has been stabilized at room temperature, with a coexistence of monoclinic and cubic phases observed between 7 and 13 at% of Pr. The decrease in particle size from 35 to 10 nm, along with the decrease in bandgap from 5.42 to 5.06 eV, is attributed to nonstoichiometric HfO2_x and the formation of sub-bands near the conduction band induced by enhanced oxygen vacancies.
Article
Materials Science, Ceramics
Yi Ding, Zhen Li, Zimei Bai, Zhengdi Jiang, Zhenyu Chen, Xuanrui Zhang, Chao Lu, Hui Dan, Tao Duan
Summary: In this study, Nd-doped zirconia ceramics were successfully prepared using the hydrothermal assisted sol-gel method. With the increase in Nd content, the phase structure of ZrO2 changed and the grain size and compactness of the obtained ceramics increased with the increment in sintering temperature. The successful accommodation of Nd within the ZrO2 lattice was confirmed by the detected increase of cell parameters. This study provides a new method for the immobilization of high-level radioactive waste.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Composites
Yuchen Tong, Zhufeng Hu, Min Wang, Chao Yang, Junbo Xu
Summary: In this study, CF-ZrO2/ZrC composites with controllable coating thickness were prepared using an in-situ sol-gel method. By changing the hydrophobicity of the carbon fibers surface, the interface affinity was increased, ensuring the preparation of uniform coatings. The coating layer increased the thickness of the composites and prevented further oxidation of internal carbon. This method effectively improved the ablative resistance and thermal decomposition temperature of the composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Xuanming Lu, Kazuyoshi Kanamori, George Hasegawa, Kazuki Nakanishi
Summary: Hierarchically porous monoliths based on cobalt manganite have been prepared through a sol-gel process with phase separation, resulting in interconnected macropores and open nanopores. The dual-polymer strategy effectively induces spinodal decomposition to form a porous gel with a co-continuous structure. The effects of solvent and polymer on the porous morphology derived from phase separation have been systematically studied.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Energy & Fuels
Shaobo Wang, Fangang Zeng, Yanwei Liu, Yanghao Meng, Wenjia Wang, Chang Liu, Jinglai Zhang, Hongbiao Du, Jie Li
Summary: In this study, atom-doped ZrO2-SiO2 complex oxide catalysts were prepared using sol-gel method for hydrothermal liquefaction of Spirulina. The optimized catalyst, calcinated at 700 degrees C with the ratio of SiO2:ZrO2 = 10:1 and 5g polyethylene glycol, showed the best performance in terms of specific surface area and total acid site density, providing the highest biocrude yield.
Article
Chemistry, Physical
Y. Mansilla, M. D. Arce, C. Gonzalez-Oliver, J. Basbus, H. Troiani, A. Serquis
Summary: ZrO2 thin films were synthesized using the sol-gel method and characterized using various techniques, showing excellent insulating properties and high symmetry phases, making them ideal for electrical insulator and anti-corrosion coatings.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Sarmad Naim Katea, Lars Riekehr, Gunnar Westin
Summary: Carbothermal reduction of Zr-sucrose gels powders into nano-phase ZrC or ZrC-Zr(C, O) core-shell powders was achieved by using a composite of 2-4 nm sized ZrO2 and amorphous carbon. The resulting products varied in morphology and structure depending on the sucrose-carbon:Zr ratio in the gels.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Polymer Science
Hartina Mohd Yusop, Annur Isma Husna Mohd Ismail, Wan Norfazilah Wan Ismail
Summary: A new biopolymer-silica hybrid material composed of inulin and TEOS was successfully synthesized via sol-gel method for use as an adsorbent. Analysis using FTIR, EDX, FESEM, XRD, BET, and TGA confirmed the strong interaction between inulin and TEOS, optimal morphology and characteristics for absorption properties, mesoporous structure, and thermal stability of the composite material.
Article
Polymer Science
Anna Adamczyk
Summary: Materials of the ZrO2-SiO2 system were synthesized using the sol-gel method, and the effect of different ZrO2 precursors and annealing temperatures on the structure of the samples was analyzed using various characterization techniques.
Article
Materials Science, Ceramics
Xiaoqing Wang, Chengyuan Li, Mingjia Zhi, Zhanglian Hong
Summary: In our previous work, we used the organic acids assisted sol-gel method to prepare ZrO2 aerogels. We found that organic acids with two carboxyl groups and one side group, or with three carboxyl groups and one hydroxyl group, were necessary to form wet gels. In this work, we used different organic reagents to verify our assumption and successfully synthesized ZrO2 aerogels with high surface area and large pore volume.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Dasong Peng, Xiaodong Wang, Yanchao Ren, Ziyue Tan, Shanping Hu
Summary: A novel process method to prepare Yttria stabilized Zr0 2 beads with desirable properties has been proposed in this study. The optimized preparation parameters greatly improve the density and reduce the sintering temperature of the beads.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
