Article
Chemistry, Physical
Iztok Naglic, Blaz Leskovar, Zoran Samardzija, Bostjan Markoli
Summary: This study investigated the influence of gallium addition on the phases formed in Al-Mn alloys during casting, revealing that an increase in gallium content led to the formation of IQCs and DQCs in the alloys. Microanalysis showed that IQCs contained more gallium and less manganese compared to DQCs.
Article
Materials Science, Multidisciplinary
Md Maidul Islam, Daniel G. Georgiev
Summary: The Cu3N films were deposited through reactive sputtering of copper in a nitrogen/argon gas mixture, with the resulting films exhibiting polycrystalline structure and variable crystalline orientation depending on substrate temperature. The optical band gap values and resistivity of the film material showed significant variations with substrate temperature and nitrogen gas fraction, with different characteristics observed for films deposited on Si and glass substrates.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Masaki Tahara, Kazuya Hasunuma, Hideki Hosoda
Summary: This study investigated the decomposition process of the isothermal alpha '' phase in beta-Ti alloys, and found that the resulting alpha + beta dual phase inherited the microstructural characteristics of the alpha ''(iso) phase. The research results indicate the existence of a strict variant selection rule between the decomposed alpha and beta phases, with a specific variant combination observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
Mehmet Erman Mert
Summary: The study investigated the efficiency of hydrogen production by doping nickel foam precursors with nickel, cobalt particles, and decorating with silver nano-domes. The catalyst NF/NiCo-2/Ag showed the best performance in terms of lower hydrogen overpotential, higher HPE, stability, and response during the electrolysis process in 1 M KOH.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Water Resources
M. N. Hossain, Md. Didarul Islam, Ashiqur Rahaman, Nazma Khatun, M. A. Matin
Summary: This study aimed to develop a cost-effective activated carbon (AC) from local tea waste for the treatment of tannery wastewater. The synthesized AC showed high adsorption capability in a methylene blue adsorption test. The crystal structure and microstructure of AC were examined using XRD and SEM, which revealed small crystallite size and particle size. The produced AC effectively reduced chromium and other physical parameters in industrial wastewater.
APPLIED WATER SCIENCE
(2023)
Article
Materials Science, Ceramics
Khan Alam, Mohammad B. Haider, Mohammad F. Al-Kuhaili, Khalil A. Ziq, Bakhtiar Ul Haq
Summary: Chromium nitride thin films were prepared by reactive radio frequency magnetron sputtering, and their properties were studied in relation to the nitrogen to argon flow rate ratio and film composition. The results show that the film composition, band gap, and electronic phase transition are influenced by the gas flow ratio and film composition.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
T. Roch, M. Gregor, S. Volkov, M. Caplovicova, L. Satrapinskyy, A. Plecenik
Summary: This study examined the impact of different substrates on the structure and orientation of niobium nitride thin films, revealing that films on C-Al2O3 substrate exhibited the best superconducting properties.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Munmun Basak, Md Lutfor Rahman, Md Farid Ahmed, Bristy Biswas, Nahid Sharmin
Summary: Cobalt ferrite nanoparticles were synthesized using co-precipitation technique with different precipitating agents, affecting the structure and size distribution. Various analysis methods showed highly correlated results, with SSP method being the most compatible.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Applied
Yanqiu Ma, Jingnan Zang, Mingmin Qing, Yulin Xiao, Huajiang Zhang, Yujie Chi, Yuan Chi
Summary: The glycosylation of egg white proteins with maltodextrin was studied. The glycosylated egg white proteins showed improved gel properties, such as increased hardness, water holding capacity, rheological parameters, and finer gel microstructures. The protein structures were unfolded due to glycosylation, as observed by changes in content of exposed sulfhydryl group and β-sheet, decreased crystallinity, thermal denaturation temperature, and enthalpy. The study provides insights into glycosylation mechanism and a convenient approach to improve the gel properties of egg white proteins.
Article
Chemistry, Applied
Yanqiu Ma, Jingnan Zang, Mingmin Qing, Yulin Xiao, Huajiang Zhang, Yujie Chi, Yuan Chi
Summary: The glycosylation of egg white proteins with maltodextrin was studied and the resulting glycosylated proteins showed improved gel properties such as increased hardness, water holding capacity, rheological parameters, and finer microstructures. The protein structures were unfolded due to extended glycosylation, as evidenced by increased exposed sulfhydryl groups and beta-sheet content, decreased crystallinity, thermal denaturation temperature, and enthalpy. The gel properties were correlated with the structural changes. Overall, this study provides insights into the mechanism of glycosylation and offers a convenient approach to enhance the gel properties of egg white proteins in the food industry.
Article
Materials Science, Multidisciplinary
Holger Schwarz, Thomas Uhlig, Niels Roesch, Thomas Lindner, Fabian Ganss, Olav Hellwig, Thomas Lampke, Guntram Wagner, Thomas Seyller
Summary: This study analyzed thin films deposited via magnetron sputtering from two different preparation methods of CoCrFeNi High-Entropy Alloy targets and found that their stoichiometry, phase composition, and microscopic structure were almost identical after film deposition with the same parameters.
Article
Chemistry, Physical
Okkyun Seo, Jaemyung Kim, Jiayi Tang, L. S. R. Kumara, Koji Kimoto, Kazushi Miki, Akifumi Matsuda, Mamoru Yoshimoto, Osami Sakata
Summary: This research focuses on the influence of atomic arrangement on the electrical and catalytic properties of oxide thin films. The atomic arrangement of LiNiO2 thin films was investigated by uniaxial compression and annealing at 600℃ on sapphire substrates. Thin films with a rock-salt structure were grown using pulsed laser deposition method at room temperature. It was observed that the as-grown thin films transformed from a rock-salt to a layered structure after uniaxial compression at 600℃, and the layer thickness of the latter structure increased with increasing uniaxial compression pressure. Uniaxial compression provides a useful tool for oxide thin film research, contributing to the development of new functional oxide materials and adjustment of the atomic ordering of cation materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Subodh Shrivastava, Shubhra Mathur, Nutan Sharma, Ankit Kumar Vishwakarma, Chagan Lal Saini, S. P. Nehra
Summary: In this study, conducting MWNT/PANI nanocomposite was successfully synthesized using in-situ oxidative polymerization at low temperatures. The physicochemical properties of the nanocomposite were characterized, and the effect of MWNT loading on the gas sensing properties for hydrogen gas was analyzed. The results showed that the addition of MWNT improved the crystallite, conductivity, stability, and morphology of the composite material. The MWNT/PANI thin film sensor demonstrated high sensitivity and fast response for hydrogen gas detection at low temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Alexei Kuzmin, Milena Dile, Katrina Laganovska, Aleksejs Zolotarjovs
Summary: Undoped and Mn-doped ZnS nanocrystals were synthesized and characterized. The substitution of Mn ions for Zn ions in ZnS nanocrystals led to changes in lattice parameters and interatomic distances. Photoluminescence spectroscopy showed a shift in emission peak due to Mn doping in ZnS nanocrystals.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Ravinder Kumar Chadha, Kanchan L. Singh, Chetan Sharma, Anirudh P. Singh, Vandana Naithani
Summary: Different compositions of 70Sr-HA.xZn (30-x)Si composites were prepared by conventional sintering and microwave sintering, characterized by XRD, FTIR, Raman, SEM, and hardness tests. Microwave sintered samples showed higher density, hardness, as well as more uniform and higher grain growth compared to conventionally sintered samples.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
