Article
Multidisciplinary Sciences
Deril Ristiani, Retno Asih, Fahmi Astuti, Malik Anjelh Baqiya, Chonthicha Kaewhan, Sarayut Tunmee, Hideki Nakajima, Siriwat Soontaranon, Darminto
Summary: This study investigates the effect of heating temperature on the structure of graphenic-based carbon (GC) and suggests that GC has a mesostructure.
Article
Engineering, Chemical
Na Zhang, Qiang Li, Chunhui Li, Zhen Li, Li Zhao, Xiaotai Zhang, Yi Wang, Zhenghua Li, Xianghua Dou, Wanling Cui, Saisai Li
Summary: A highly ordered mesostructured flexible silica-based nanofiltration membrane was successfully fabricated using TEOS and Pluronic F127 copolymer as the silica source and structure directing agent, respectively. The membrane showed different mesostructures depending on the mass ratios of TEOS/F127, and exhibited a negatively charged and hydrophilic surface. It demonstrated excellent permeability, high rejections to methyl blue and multivalent salts, and satisfactory resistances to fouling and bacteria adhesion. The membrane also exhibited stability in acid and active chlorine solutions, and showed long-term performance stability.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Qixuan Zhong, Jun Liu, Shuhua Chen, Pengli Li, Jianian Chen, Wenhao Guan, Yinghua Qiu, Yong Xu, Muhan Cao, Qiao Zhang
Summary: This study presents a simple and effective post-treatment strategy to encapsulate CsPbX3 NC with PbSO4 nanoshell, significantly enhancing optical properties and demonstrating good stability.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Materials Science, Ceramics
Takumi Fujii, Moeki Yoshida, Ryouichi Yoshino, Motohide Matsuda
Summary: Highly dense and translucent bulk zeolite X was fabricated successfully by hydrothermal hot-pressing method. Densification was achieved by the addition of a small amount of distilled water or a 1 mol/L NaOH solution, resulting in enhanced sodium ion conduction.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Electrochemistry
Takashi Yanagishita, Ryotaro Kawato, Hideki Masuda
Summary: Highly ordered anodic porous alumina with a period of 90-160 nm was prepared by anodization using extremely dilute sulfuric acid. The hole period of anodic porous alumina was controllable by changing the anodization voltage. The addition of a small amount of phosphoric acid to the electrolyte improved the uniformity of the oxide film thickness.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Applied
Gabriel B. Bafero, Erica C. O. Munsignatti, Heloise O. Pastore
Summary: The study elucidated the mechanisms involved in the hydrothermal conversion of lamellar silicates into zeolites, showing that MOR phase formation follows a classical reconstructive pathway while Na-P1 and ZSM-34 structures result from a nonclassical recrystallization process. Understanding these synthetic mechanisms is crucial for the intelligent design of new and useful materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Materials Science, Paper & Wood
Tomoko Kuribayashi, Yu Ogawa, Isabelle Morfin, Yuji Matsumoto, Yoshiharu Nishiyama
Summary: Hydrothermal treatment is widely used in wood processing for various purposes. This study investigates the ultrastructure changes of wood cell walls before and after hydrothermal treatment at 200°C. The findings suggest that the hydrothermal treatment alters the nanoscale structure of wood cell walls, leading to the collapse of microfibrils.
Article
Materials Science, Ceramics
M. C. Rodriguez-Aranda, J. Alanis, H. J. Ojeda-Galvan, E. G. Villabona-Leal, A. G. Rodriguez, M. Quintana, H. R. Navarro-Contreras
Summary: This study successfully synthesized SrNb2O6, Sr2Nb2O7, and Sr5Nb4O15 perovskites via hydrothermal reactions in highly concentrated NaOH solutions. The mechanisms governing crystallization and crystal morphology were found to be dependent on NaOH concentration. High NaOH concentration accelerated the hydrolysis rate, leading to the formation of different crystalline phases.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Zamzama Rahmany, Jishad A. Salam, R. Jayakrishnan, S. Savitha Pillai
Summary: The study focused on investigating the impact of gallium content on the structural, magnetic, optical, and optoelectronic properties of nanocrystalline gallium ferrite prepared via hydrothermal synthesis. It was found that increasing gallium content led to decreased lattice parameters and increased particle size, affecting the structural, optical, and magnetic properties. The results showed that gallium content plays a crucial role in tailoring the properties of nanocrystalline gallium ferrite, with potential applications in optoelectronics.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Chufan Wang, Qi Cai, Jinxu Liu, Xifeng Yan
Summary: Titanium-tantalum alloys with lamellar microstructure were successfully fabricated using a low-cost powder metallurgy method. The Ti-Ta alloy showed a tensile yield strength of 1124 MPa, twice that of the cast Ti-Ta alloys. The lamellar structure strengthening was identified as the dominant mechanism for the high strength of the Ti-Ta alloys prepared by powder metallurgy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Composites
Chong Liu, Qing Tan, Yaqin Deng, Peilin Ye, Lingyu Kong, Xu Ma, Li Xu, Yuqing Xu, Qinping Qiang, Wenbo Chen, Yang Zhong, Yakovlev Alexey Nikolaevich, Zhengchun Zhao, Wei Zhou, Bitao Liu
Summary: High-performance piezoresistive sensors have the potential to be used in human health monitoring applications. A piezoresistive sensor without any adhesive polymer was fabricated by introducing multi-walled carbon nanotubes and carbon black into the skeletons of melamine sponge via a simple hydrothermal method. The resulting MWCNTs@CB sensor exhibits excellent performance and can detect physiological motions.
COMPOSITES COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Monica J. Mendoza-Castro, Erika De Oliveira-Jardim, Nelcari-Trinidad Ramirez-Marquez, Carlos-Alexander Trujillo, Noemi Linares, Javier Garcia-Martinez
Summary: Interzeolite transformation has been used to produce a novel family of hierarchical catalysts with excellent textural properties, strong acidity, and superior catalytic performance. The properties of the catalysts can be fine-tuned by stopping the interconversion at different times.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Navneet Kaur, Apoorva Katoch, Satyendra Singh, Raminder Kaur
Summary: In this study, zirconium ferrite nanoparticles were synthesized by hydrothermal method and then calcined. The results showed that crystal phases were formed and the average crystallite size increased with the temperature. The surface morphology of the particles was observed using FESEM. UV-vis absorption spectra were used to determine the optical band gap, which decreased with the temperature. The photocatalytic degradation of Rhodamine-B (RhB) by zirconium ferrite nanoparticles was achieved with the sample calcined at 700 degrees C.
Article
Chemistry, Inorganic & Nuclear
Salma Alshehri, Samar Al-Shehri, Haitham Ali, Ali Abdel-Daiem Hassaneen, Mohammed Salah Aida
Summary: Undoped and Ca-doped ZnO nanoparticles were synthesized via hydrothermal method. The influence of Ca doping ratio on the physical properties of ZnO nanoparticles was investigated by varying the Ca doping ratio. XRD and SEM techniques were used for structural and morphological characterization, while transmittance measurements were used for optical characterization. It was found that the introduction of Ca in the ZnO network enlarged the crystallographic parameters, created tensile strain, and increased the crystallite size. The prepared nanopowder showed homogeneously distributed spherical grains with increasing Ca doping ratio. The optical band gap of Ca-doped ZnO decreased due to the increase in crystallite size and disorder creation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Hong Wang, Dongtao Zhang, Yuqing Li, Yuqi Yang, Jianjun Yang, Weiqiang Liu, Ming Yue
Summary: Anisotropic SmCo6.8Hf0.2 nanocrystalline magnets with preferred texture were successfully prepared by hot pressing and hot deformation method. The {0001} orientation texture of the hot deformed magnet was remarkably preferred, which improved remanence. The structural evolution process was systematically characterized by TEM, providing crucial insight for developing high-performance SmCo7-based magnets.
MATERIALS RESEARCH LETTERS
(2022)
