Review
Materials Science, Multidisciplinary
Enhui Wang, Xinmei Hou, Yafeng Chen, Zhi Fang, Junhong Chen, Tongxiang Liang, Kuo-chih Chou, Klaus G. Nickel
Summary: With the advancement of science and technology, non-oxide ceramics (NOCs) play a crucial role in various fields at high temperatures. However, they are prone to complex gas-solid interface reactions under harsh conditions, emphasizing the importance of understanding these reactions for material performance improvement. Different approaches, including theoretical, experimental, and simulative methods, are used to efficiently study the reaction behavior and mechanisms of NOCs at the gas-solid interface.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Hao-Cheng Thong, Alexis Payne, Jia-Wang Li, Yue-Yu-Shan Cheng, Jacob L. Jones, Ke Wang
Summary: The excellent piezoelectric properties of lead-free potassium sodium niobate (KNN) ceramics have been reported in the past 15 years, but the poor reproducibility of these properties has hindered industrial development due to a lack of understanding of processing aspects. Chemical inhomogeneity during processing is a critical challenge for KNN-based ceramics, as their properties are strongly dependent on composition. In this study, in-situ temperature-dependent X-ray diffraction and thermogravimetric analysis were used to investigate chemical reactions during solid-state synthesis, revealing that chemical homogeneity is sensitive to reactant competition, explaining the chemical inhomogeneity in KNN and other lead-free piezoelectric ceramic systems prepared via solid-state synthesis.
Article
Materials Science, Multidisciplinary
Marcos Cota-Leal, Jorge A. Garcia-Valenzuela
Summary: A versatile three-step sequential reaction route is proposed to synthesize transparent copper iodide thin films with adjustable resistivities. The route involves chemical solution deposition, annealing and iodination processes. The films obtained are transparent, homogeneous and adhere well to glass substrates.
Review
Nanoscience & Nanotechnology
Yuntong Zhu, Juan Carlos Gonzalez-Rosillo, Moran Balaish, Zachary D. Hood, Kun Joong Kim, Jennifer L. M. Rupp
Summary: This review explores the chemistry and thin-film processing of Li oxides and highlights their potential integration in microbatteries, neuromorphic computing, and sensors. Thin-film Li oxides offer fast Li-ion movement and electronic-state changes, leading to improved energy and information density, cycle speed, and endurance in Li-conductor-based devices. Additionally, a future vision is provided for lithionic devices utilizing Li-based ceramics in microdevices beyond batteries.
NATURE REVIEWS MATERIALS
(2021)
Article
Materials Science, Ceramics
Maria J. S. Lima, Fernando E. S. Silva, Maria V. M. Souto, Kivia F. G. Araujo, Roberta A. C. Menezes, Marcello Filgueira, Carlson P. Souza, Uilame U. Gomes
Summary: WC-Ni nanoparticles were successfully synthesized using the gas-solid reaction method, with synthesis temperature having the greatest influence on crystallite size, and the combination of temperature and isotherm also significantly affecting the response variable.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Yuanxun Li, Rui Peng, Yongcheng Lu, Minshu Chen
Summary: The Li2MnSiO4 ceramic was synthesized using the solid state reaction method, and its sintering and dielectric properties were analyzed through various techniques. The peak dielectric properties were obtained at 1000 degrees C.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Ceramics
Chaochao Cao, Jingwen Yang, Shaobo Yang, Wenjuan Bai, Dong Wang, Song Yan, Yanming Xue, Xiongwei Qu, Chengchun Tang
Summary: In this study, a reaction welding strategy is used to prepare well-bonded h-BN fibers network using ethanolamine as a crosslinking agent. The resulting h-BN ceramics exhibit excellent physicochemical stability, processibility, and various desirable properties, making them promising for practical applications.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Yang Gao, Daiki Hamana, Ryo Iwasaki, Junya Iihama, Sawao Honda, Munni Kumari, Tomokatsu Hayakawa, Samuel Bernard, Philippe Thomas, Yuji Iwamoto
Summary: In this study, we report the synthesis of β-SiAlON:Eu2+ phosphors using novel single source precursors. By establishing strict control over the chemical composition at the molecular scale, we were able to successfully synthesize β-SiAlON:Eu2+ phosphors that exhibit green emission properties.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Maho Kitamura, Shinobu Fujihara, Manabu Hagiwara
Summary: We compared the microstructure and energy-storage properties of (Bi1/2K1/ 2)0.5Sr0.5TiO3 ceramics prepared via solid-state and hydrothermal reactions. The hydrothermally derived ceramics exhibited well-dispersed cubic nanoparticles, while the solid-state reaction resulted in the aggregation of primary particles. By controlling the sintering temperature, the grain size of the hydrothermally derived ceramics could be controlled between 273±24 and 936±69 nm, maintaining a relative density of over 95%. On the other hand, ceramics prepared via the solid-state reaction did not fully densify even at the highest tested sintering temperature of 1200 degrees C. The hydrothermally derived ceramics exhibited a high recoverable energy-storage density of 2.25 J/cm^3 at 240 kV/cm, attributed to their dense and fine-grained microstructure.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Applied
Fabio Wilbert, Thomas J. J. Muller
Summary: One-pot syntheses of 3,3-diarylallylidene indolinones were achieved by pseudo-four-and pseudo-five-component reactions. The title compounds, which are a mixture of E/Z-configured isomers, were assessed for their photophysical characteristics using absorption and solid-state emission spectroscopy. The fluorescence of 3,3-diarylallylidene indolinones in the solid state was observed regardless of their configuration, but only when electron-withdrawing and weakly electron-releasing remote p-phenyl substituted dyes were present with concomitant Boc substitution of the lactam moiety. DFT and TD-DFT calculations were used to reproduce and rationalize the electronic structure of the longest wavelength absorption and emission bands.
Article
Engineering, Environmental
Jimin Zeng, Jun Yuan, Lihui Jiang, Shihe Chen, Shaonan Zhang, Zhichao Li
Summary: The study focused on the reactions between solid fuel and gas intermediates in a chemical looping combustion (CLC) reactor, identifying carbon gasification as a control step and determining that the diffusional resistance of 45-75 μm char particles can be ignored.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Luisa Maria Gatzemeier, Franc Meyer, Ulf Diederichsen, Tiago Fleming Outeiro
Summary: Alpha-Synuclein is a protein involved in neurodegenerative disorders that accumulate in brain protein inclusions. We have developed a chemical synthesis method for Alpha-Synuclein, allowing the synthesis of protein variants for further investigation of its structure and aggregation behavior.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Yuhan Liu, Jing Shang, Tong Zhu
Summary: Photoelectric co-catalysis is a promising method for CO2 reduction due to its flexibility and higher reaction efficiency. In this study, solid planar PEC devices were designed using reduced graphene oxide (RGO) for gas-solid PEC CO2 reduction. The best CO2 reduction efficiency was achieved with RGO-130, which had moderate oxygen content, 001 crystal face, and layer upon layer structure, facilitating the separation and transfer of photogenerated carriers.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaona Li, You Yang
Summary: Automated chemical solid-phase synthesis is a reliable and efficient automation platform for synthesizing glycans. Automated Glycan Assembly (AGA), as a key breakthrough in the field, has evolved from a proof-of-concept to a robust technology for streamlined production of various glycans. In addition, HPLC-assisted automated synthesis shows promising potential in accessing glycans.
CHINESE JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Seung Hyun Jin, Hae Won Lee, Na Won Kim, Byung-Woo Lee, Gil-Geun Lee, Youn-Woo Hong, Woo Hyun Nam, Young Soo Lim
Summary: This study demonstrates the sonochemically activated solid-state synthesis of BaTiO3 powders, which accelerates the phase conversion process and can replace traditional ball-mill mixing methods.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Seung-Keun Park, Yun Chan Kang
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Nanoscience & Nanotechnology
Seung-Keun Park, Jul-Sung Park, Yun Chan Kang
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Nanoscience & Nanotechnology
Bo-Young Kim, Ji-Wook Yoon, Jin Koo Kim, Yun Chan Kang, Jong-Heun Lee
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Physical
Young Jun Hong, Kwang Chul Roh, Yun Chan Kang
Article
Chemistry, Physical
Jung Hyun Kim, Yeon Jong Oh, Yun Chan Kang
Article
Chemistry, Physical
Gi Dae Park, Jung-Kul Lee, Yun Chan Kang
Article
Thermodynamics
Sanjay K. S. Patel, Sanath Kondaveeti, Sachin V. Otari, Ravi T. Pagolu, Seong Hun Jeong, Sun Chang Kim, Byung-Kwan Cho, Yun Chan Kang, Jung-Kul Lee
Article
Engineering, Environmental
Sanjay K. S. Patel, Sachin V. Otari, Jinglin Li, Dong Rip Kim, Sun Chang Kim, Byung-Kwan Cho, Vipin C. Kalia, Yun Chan Kang, Jung-Kul Lee
JOURNAL OF HAZARDOUS MATERIALS
(2018)
Article
Chemistry, Physical
Jin-Sung Park, Jung Sang Cho, Yun Chan Kang
JOURNAL OF POWER SOURCES
(2018)
Article
Chemistry, Multidisciplinary
Seung-Keun Park, Gi Dae Park, Yun Chan Kang
Article
Chemistry, Multidisciplinary
Gi Dae Park, Jong Hwa Kim, Yun Chan Kang
Article
Chemistry, Multidisciplinary
Min Su Jo, Gi Dae Park, Yun Chan Kang, Jung Sang Cho
Article
Chemistry, Multidisciplinary
Gi Dae Park, Yun Chan Kang
Article
Chemistry, Multidisciplinary
Gi Dae Park, Yun Chan Kang
Article
Chemistry, Multidisciplinary
Seung-Keun Park, Jung-Kul Lee, Yun Chan Kang
ADVANCED FUNCTIONAL MATERIALS
(2018)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)