Article
Materials Science, Multidisciplinary
Manuel Luitz, Diana Pellegrini, Miriam von Holst, Khaled Seteiz, Lukas Groener, Mario Schleyer, Michael Daub, Andreas Warmbold, Yi Thomann, Ralf Thomann, Frederik Kotz-Helmer, Bastian E. Rapp
Summary: Tungsten is an important material due to its high chemical and thermal stability, particularly in high-temperature applications. Tungsten carbide, known for its outstanding hardness, is widely used in tool manufacturing and as a catalyst scaffold. However, the microstructuring of these materials faces challenges due to their hardness and brittleness, making traditional machining methods impractical.
ADVANCED ENGINEERING MATERIALS
(2023)
Review
Materials Science, Ceramics
Anastasia Kucheryavaya, Zoltan Lences, Pavol Sajgalik, Harald Harmuth
Summary: Zirconium oxycarbides and zirconium oxycarbonitrides are high-temperature ceramic materials with excellent properties and potential applications. However, their stoichiometry, synthesis chemistry, and thermodynamics of reactions still need further clarification. This review provides a comprehensive interpretation of data for these materials and summarizes the state-of-the-art synthesis procedures and potential applications.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Environmental Sciences
Qie Luo, Wenzheng Cui, Huan Wang, Bo Xiao, Lei Chen, Youqun Wang, Zhibin Zhang, Yunhai Liu, Xiaohong Cao
Summary: This study prepared magnetic Zr(IV)-ethylenediamine tetramethylene phosphonic acid (EDTMPA) hybrids for the capture of U(VI) from aqueous solutions. The influences of pH, adsorption period, initial concentration, and temperature were investigated, and the desorption and reusability of the materials were explored. The experiment demonstrated that MZrOP-0.2-100 is a potentially effective material for removing U(VI) from radioactive solutions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Ceramics
Lin Zhao, Xueying Wang, Seahoon Lee, Emanuel Ionescu, Ralf Riedel
Summary: Nano size ZrC powder was prepared using liquid polymeric precursor method, controlling the carbon content and viscosity. ZrC powders were fabricated by pyrolysis and carbothermal reduction in argon and vacuum, with analysis of microstructure and pyrolysis mechanism. The synthesized X-ray pure ZrC powders had an average grain size less than 30 nm.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Wen Kiat Chan, Jiawei Chen, Donglei Zhou, Junzhi Ye, Ricardo Javier Vazquez, Cheng Zhou, Guillermo Carlos Bazan, Akshay Rao, Zhongzheng Yu, Timothy Thatt Yang Tan
Summary: This study reports on the synthesis and photophysical characterization of inorganic-organic hybrid perovskite superstructures (CsPbBr3 SSs) with unique photophysical properties. These SSs exhibit large emission red-shifts and super-radiant burst emissions, making them promising for applications in displays, lasers, and photodetectors.
Article
Materials Science, Ceramics
Yiming Zhang, Haoyang Wu, Mingli Qin, Yuelong Wang, Zhirui Zhang, Deyin Zhang, Baorui Jia, Xuanhui Qu
Summary: Polycrystalline aluminum oxynitride (AlON) powders were prepared by carbothermal reduction nitridation of amorphous precursor obtained by solution combustion synthesis (SCS). The research discussed the influences of different urea/aluminum nitrate nonahydrate ratio, calcining temperature, and holding time on the properties of products, providing valuable reference for the efficient synthesis of AlON powders.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Xiya Guan, Haibo Li, Ruiqing Li, Suyuan Zeng, Rui Li, Qingxia Yao, Hongyan Chen, Yao Zheng, Konggang Qu
Summary: In this study, a novel organic-inorganic hybrid strategy was employed to synthesize highly dispersed Fe species embedded in N-doped porous carbon nanosheet (Fe,N-PCN). The newly-prepared Fe,N-PCN displayed excellent catalytic activity and stability. Theoretical computations revealed the active sites and interfacial electron transfer for catalytic performance modulation.
Article
Engineering, Chemical
Fatemeh Ahmadpoor, Mahmoud Nasrollahzadeh, Mahsa Mohammad
Summary: This study successfully designed an efficient and green hierarchical copper phosphate-lignosulfonate nanoflowers using an eco-friendly self-assembly method for catalytic reduction of organic dyes in water. Lignosulfonate played a critical role in controlling the size and morphology of Cu-LS nanoflowers, which showed high stability and reusability in catalytic tests.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Zhi-hui Zhou, Mei Zhang, Tie-chui Yuan, Yun-bao Xu, Rui-di Li
Summary: Understanding and controlling the influence of impurity elements on the quality of boron carbide is of great importance. In this study, it was found through hot pressing sintering experiments that impurity elements can result in the formation of aggregation pores and abnormal grain growth, significantly reducing the toughness of boron carbide samples.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Materials Science, Composites
Zhu-Bao Shao, Xiang Song, Tian-Ci Wang, Jing Cui, Wen Ye, Baoyun Xu, De-Yi Wang
Summary: A novel constructing strategy was used to obtain super-efficient flame retardants containing metal elements for epoxy resin, resulting in excellent fire protection.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Jiacheng Huang, Hongliang Guo, Jun Cheng, Xiaozhou Wang
Summary: In this study, nanosized Hf(C,N,O) ceramics were prepared from a novel precursor, and the carbothermal reduction of these ceramics into hafnium carbide was investigated. The ceramics contained nanocrystals of Hf2ON2 and HfO2, as well as amorphous carbon. The conversion process began at 1300 degrees C and completed at 1500 degrees C, resulting in irregularly shaped crystallites measuring 50-150 nm. Nitrogen gas was introduced to catalyze the conversion of oxides into carbides. The ceramics prepared in this study are expected to have superior properties for high-performance composite ceramics.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Melania Rogowska, Per-Anders Hansen, Henrik Hovde Sonsteby, Joanna Dziadkowiec, Hakon Valen, Ola Nilsen
Summary: This study reports on photoactive organic-inorganic hybrid thin films prepared by molecular layer deposition, comparing different metal components and their effects on the optical properties of the films. The results demonstrate the importance of metal choice in determining the photoluminescence behavior of the films, laying a foundation for further research on these materials for potential applications as photoactive agents.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Lindsey Paul, Melissa Gu, Sydney Moise, Daniel P. Harrison, Michael R. Norris
Summary: In this study, four Ru complexes containing bidentate polypyridyl ligands were synthesized. It was found that these complexes can selectively reduce CO2 to liquid fuels, with the involvement of amines playing a crucial role in this process.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Chumei Ye, Lauren N. McHugh, Celia Chen, Sian E. Dutton, Thomas D. Bennett
Summary: Crystalline materials have been crucial for the development of hybrid organic-inorganic perovskites (HOIPs), leading to interesting applications like solar cells and optoelectronic devices. Recently, the glassy state of HOIPs, which retains the basic building blocks of crystalline HOIPs but lacks long-range periodic order, has been discovered. The emerging family of glasses formed from HOIPs exhibit diverse properties complementary to their crystalline state. This mini review highlights the chemical diversity of 3D and 2D crystalline HOIPs and showcases the production of glasses from these materials, with a focus on achievements in melt-quenched glasses. Our perspective on the future of this new family of materials is also provided.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Ceramics
Yu Tian, Wenzhou Sun
Summary: In this study, ZrB2-ZrC hybrid powders were successfully synthesized by a novel two-step reduction method. The relative contents of ZrB2 and ZrC phases in the product powders could be adjusted by varying the B4C and C content in the starting compositions. The resultant powders showed good oxidation resistance and sinterability.
CERAMICS INTERNATIONAL
(2022)
