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
Materials Science, Multidisciplinary
N. B. Pradeep, M. M. Rajath Hegde, G. C. Manjunath Patel, Khaled Giasin, Danil Yu Pimenov, Szymon Wojciechowski
Summary: This research article discusses the synthesis and characterization of a Ti alloy powder using a high-energetic ball milling process. The study focuses on the formation of ternary Ti alloy with Mg and Sr additions, and the characterization results show the generation of nonequilibrium intermetallic phases and partial amorphization during the ball milling process.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
F. A. Ibrahim, M. H. Habib
Summary: The study created silver vanadate nanosheets using the sol-gel process and found their uniform size distribution and superior electrochromic characteristics. The addition of silver enhanced the crystallinity of V2O5 and improved the compositions' performance, making them suitable for manufacturing electronic devices.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
Nadine Eissmann, Uwe Muehle, Uwe Gaitzsch, Gunnar Walther, Thomas Weissgaerber, Bernd Kieback
Summary: The effect of titanium addition beyond the solubility limit was investigated to demonstrate the precipitation hardening possibility of the Cantor alloy CoCrFeMnNi. Following appropriate heat treatment, a significant increase in hardness was detected due to nanometer-sized precipitates identified through TEM analysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Maxim Ozerov, Vitaly Sokolovsky, Sergey Nadezhdin, Ekaterina Zubareva, Nadezhda Zherebtsova, Nikita Stepanov, Lujun Huang, Sergey Zherebtsov
Summary: The TiZrNb metal-matrix composites reinforced by in-situ formed borides were produced using different amounts of TiB2. The composites exhibited varying microstructures and mechanical properties with the increase in boride content. Load transfer strengthening was found to be the main contributor to the overall strength of the composite. The biocompatibility evaluation suggested a decrease in the proliferation rate of mesenchymal stem cells with an increase in boride content.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Baris Yavas, Cain J. Hung, Mingxuan Li, Rainer J. Hebert, S. Pamir Alpay, Mark Aindow
Summary: Laser glazing in a powder bed fusion instrument was used to evaluate the microstructure of an Al85Cu6Fe3Cr6 alloy, revealing the presence of I-phase quasicrystals, Al2Cu, and FCC Al. Laser tracks produced under different conditions showed a fine and uniform phase mixture with over 70% I-phase, a thin film of Al2Cu, and no cracking or macrosegregation. The reasons for the formation of I-phase instead of the previously reported D-phase in this alloy were discussed.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
M. A. Mazo, A. C. Caballero, J. Rubio
Summary: In this study, cheap, abundant, and easily-obtained carbon fillers such as graphite and carbon black were successfully incorporated into a silicon oxycarbide matrix to obtain dense crack-free bulk composites with enhanced electrical and thermal conductivities. Raman parameters were crucial for understanding the electronic and/or phonon transport in the composites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Thomas Willum Hansen, Marc Willinger
Summary: Catalysis is a highly complex phenomenon involving fundamental processes on multiple length scales. The understanding of the full-scale complexity of catalysis is still limited, and the experimental documentation of how atomic-scale processes influence long-range order in materials is lacking. Elucidating the link between atomic-scale structural dynamics and collective behavior could lead to a deeper understanding and further optimization of catalysts and processes.
Article
Biochemistry & Molecular Biology
Samridhi Pathak, Nayan Deori, Aditi Sharma, Shirisha Nagotu, Avinash Kale
Summary: Tuberculosis is a serious infectious disease that affects millions of people globally every year, especially in tropical countries like India. The treatment of tuberculosis using first-line drugs can lead to drug-resistant strains and side effects such as muscle wasting and malnutrition. This study investigates the effects of these major tuberculosis drugs on actin polymerization, which plays a central role in muscle contraction. Biophysical approaches, in vivo and in vitro experiments, and computational simulations were used to understand the mechanism of muscle wasting in tuberculosis. The findings provide valuable insights into the interaction between tuberculosis drugs and actin filaments.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2022)
Article
Chemistry, Physical
Kamila Hyra, Pawel M. Nuckowski, Joanna Willner, Tomasz Suponik, Dawid Franke, Miroslawa Pawlyta, Krzysztof Matus, Waldemar Kwasny
Summary: The article assesses the solutions and dried residues from the bioleaching process of PCB using Acidithiobacillus ferrooxidans. The analysis of the residues showed a difference in the component oxidation, with the leachate consisting mainly of amorphous particles and the control solution showing crystalline components. The investigation confirmed the activity of A. ferrooxidans bacteria in solubilizing electronic waste components.
Article
Chemistry, Applied
Vivek K. Bajpai, InWha Park, Imran Khan, Fanar Hamad Alshammari, Pradeep Kumar, Lei Chen, MinKyun Na, Yun Suk Huh, Young-Kyu Han, Shruti Shukla
Summary: The protoberberine alkaloid THBA showed significant antioxidant potential and antimicrobial activity against Bacillus cereus, disrupting the membrane integrity and inhibiting biofilm formation. It also reduced ROS levels in fibroblast cells and decreased CFU counts in raw rice, suggesting its potential as a natural antioxidant and antimicrobial agent.
Article
Nanoscience & Nanotechnology
Ming Chen, Wenlong Deng, MengMeng Wang, Jiansheng Li, Shilong Xing
Summary: Duplex stainless steels with ultrafine or fine-grained microstructures exhibit pronounced discontinuous yielding and Luders banding behavior during tensile deformation at 77 K. In particular, samples with high-stability eye-shaped structures and ultrafine grains show a yield strength of 1750 MPa, a yield drop of 87 MPa, and a Luders strain of 0.23.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Debasrita Bharatiya, Biswajit Parhi, Sarat K. Swain
Summary: In this study, a GO-based ZnO, CuO, and Ag2O mixed ternary nanostructured composite was developed using a simple sol-gel synthesis approach, showing enhanced dielectric properties and potential charge storage applications. Physio-chemical characterization techniques were used to study the properties of the composite, highlighting its remarkable dielectric and charge storage capabilities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
A. Pakalniskis, R. Skaudzius, D. V. Zhaludkevich, A. L. Zhaludkevich, D. O. Alikin, A. S. Abramov, T. Murauskas, V. Ya. Shur, A. A. Dronov, M. V. Silibin, A. Selskis, R. Ramanauskas, A. Lukowiak, W. Strek, D. V. Karpinsky, A. Kareiva
Summary: In this study, samarium substituted bismuth ferrite ceramics were prepared by sol-gel synthesis method and studied using various microscopic techniques to investigate the evolution of crystal structure across the morphotropic phase boundary region. The compounds exhibited structural transitions from polar active rhombohedral phase to anti-polar orthorhombic phase and then to non-polar orthorhombic phase within a specific concentration range. The results revealed a coexistence of different structural phases in the compounds, with a notable difference in the concentration range ascribed to the morphotropic phase boundary estimated by microscopic measurements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
S. C. H. Llewelyn, L. R. Owen, H. Y. Playford, N. G. Jones, D. Dye, M. C. Hardy, H. J. Stone
Summary: This study examined the effects of Ni:Co ratio variation on the lattice misfit of NiCo-5Al-5Ti-15Cr alloys over a wide temperature range. Different alloy compositions were prepared and aged at 800 degrees C, and neutron diffraction was used to determine the lattice parameters. The results showed that the lattice misfit decreased with increasing temperature for alloys with Co content of 0-47 at%, and the misfit increased systematically with increasing Co content up to 38 at%. The alloy with 47Co exhibited lower misfit values than the 38Co alloy at temperatures up to 700 degrees C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Mehri Sohrabi, Bijan Eftekhari Yekta, Hamidreza Rezaie, Mohammad Reza Naimi-Jamal, Ajay Kumar, Andrea Cochis, Marta Miola, Lia Rimondini
Summary: Injectable bioactive glass-based pastes are promising biomaterials for filling small bone defects and improving self-healing, with the addition of MgO enhancing material properties. Controlled ion release and cell experiments validated the bioactivity and cytocompatibility of the materials.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Abolhassan Najafi, F. Golestani-Fard, H. R. Rezaie, Saviz Parsa Saeb
Summary: SiC-B4C nano powders were synthesized through sol-gel process in water-solvent-catalyst-dispersant system. The formation mechanism of the product during sol-gel process was evaluated using TEM, SEM, DTA/TG, BET, XRD, FTIR and DLS analysis methods. The nanoparticles had a high surface area and meso porous surfaces, with SiC-B4C particles in the range of 20-40 nm.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
M. Karami, S. M. Masoudpanah, H. R. Rezaie
Summary: In this study, porous LiFePO4 powders were synthesized using a mixture of CTAB and citric acid as fuel, resulting in higher crystallinity and pore volume compared to CTAB-urea fuel. The CTAB-citric acid electrode exhibited higher discharge capacity and better kinetic performance.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Chemical
M. Karami, S. M. Masoudpanah, H. R. Rezaie
Summary: Hierarchical porous LiFePO4 powders were prepared by solution combustion method using a mixture of CTAB and glycine as fuel. The effects of fuel contents on structural, microstructural, and electrochemical properties were investigated, with an appropriate amount of mixed fuels resulting in high discharge capacity and capacity retention.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Polymer Science
Mehri Sohrabi, Bijan Eftekhari Yekta, Hamid Reza Rezaie, Mohammad Reza Naimi-Jamal
Summary: The addition of GPTMS improved the structural integrity, bioactivity, and cellular adhesion of the bio-nano composite paste in simulated body fluid. It also affected the viscosity and injectability of the paste.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Applied
Romina Mehrabi, Hamid Reza Rezaie, Bijan Eftekhari Yekta
Summary: This study investigated the effects of NaF, Li2CO3, and H3BO3 minerals, with H3BO3 identified as the best mineralizer. The optimum calcination temperature for synthesizing malayaite pink pigment was found to be 1300 degrees C. The study also optimized various parameters to propose a novel pigment with improved performance through the sol-gel method.
PIGMENT & RESIN TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Shaghayegh Shabani, Seyed Mohammad Mirkazemi, Hamidreza Rezaie, Yaser Vahidshad, Stefano Trasatti
Summary: Mesoporous gamma-alumina is widely used as a catalyst support, and this study investigates the effects of La, Sn, and B additives on the porous structure, thermal stability, and surface area of gamma-alumina.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Fahimeh Dini, Seyed Amir Ghaffari, Jafar Javadpour, Hamid Reza Rezaie
Summary: Low-temperature binder jetting is a promising method for printing hydroxyapatite composites. Optimal mechanical properties can be achieved by optimizing design parameters such as binder and powder properties. A water-based solvent and water-soluble polymeric adhesives were used for binder jetting of 3D printable hydroxyapatite powder. By blending different combinations and routes of hydroxyapatite, carboxymethyl chitosan, polyvinylpyrrolidone, and dextrin, a 3D printable powder with optimized flowability and packing density was prepared. Post-treatment in chitosan solution increased the compressive strength and Young's modulus.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Engineering, Electrical & Electronic
Leila Sohrabi-Kashani, Bijan Eftekhari Yekta, Hamid Reza Rezaie, Ashkan Zolriasatein
Summary: This study compares the hydrophobic, mechanical, and electrical properties of polymer coatings reinforced with ceramic particles. The results indicate that the use of modified titanium dioxide can significantly improve the contact angle, mechanical strength, elongation, and electrical resistivity of the material.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Hamid Rezaie, Hadi Razmi, Nima Safari, Hasan Doagou-Mojarrad
Summary: This paper proposes a dynamic wind-thermal generation scheduling framework to reduce system generation costs and pollutant emissions. A new probabilistic wind cost function is introduced to deal with wind power uncertainty, and a straightforward procedure for dynamic load dispatch based on power flow is proposed. The proposed framework is implemented on the IEEE-30 bus test system for performance evaluation, showing its effectiveness.
ELECTRICAL ENGINEERING
(2022)
Article
Materials Science, Ceramics
Soroush Etebarian, Hossein Sarpoolaky, Hamid Reza Rezaie, Mohammad Velashjerdi
Summary: Titanium silicon carbide (Ti3SiC2) MAX phase powder was synthesized using the molten salt synthesis (MSS) method. The purity and synthesis pathway of Ti3SiC2 were investigated, and Ti3SiC2 was successfully synthesized in high purity (93%) using graphite as the carbon source. The presence of Ti5Si3 silicide phase and the application of pressure and a different eutectic mixture also promoted the formation of Ti3SiC2 MAX phase. The formation mechanism involved reactions among Ti5Si3, TiC, and residual carbon.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shaghayegh Shabani, Seyed Mohammad Mirkazemi, Hamidreza Rezaie, Yaser Vahidshad, Stefano Trasatti, Filippo Bossola
Summary: The thermal stability and surface area of γ-alumina can be improved by incorporating various transition and rare earth metals. In this study, Zr and Zr-La doped alumina granules were synthesized, and the results showed enhanced thermal stability and surface area. The co-doping process with Zr and La dopants occupied vacancies in the alumina structure, preserving the mesoporous structure and suppressing α-alumina formation up to 1200 °C. These Zr-Al co-doped alumina granules can be suitable for industrial catalyst supports.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
H. Rezaie, M. Asadollahi-Baboli, S. K. Hassaninejad-Darzi
Summary: A novel decision-making procedure is proposed to identify dual inhibitors using consensus approaches and kNN classifications. The integration of diverse sources of information increases the reliability and accuracy of active/selective detections.
SAR AND QSAR IN ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Chemical
Fatemeh KashaniNia, Hamid Reza Rezaie, Hossein Sarpoolaky
Summary: In this study, bentonite was intercalated with CMC and crosslinked with glutaraldehyde to obtain non water-soluble composites. The composites were coated on clay-based microfiltration membranes. XRD, FTIR, and SEM were used to investigate the intercalation mechanism, crosslink procedure, and microstructure of the coated samples. The samples coated with the synthesized composite including 10% of glutaraldehyde showed the best performance in removing Cr3+ ions from contaminated water.
MEMBRANE AND WATER TREATMENT
(2022)
Article
Nanoscience & Nanotechnology
Neda Zakeri, Hamid Reza Rezaie, Jafar Javadpour, Mahshid Kharaziha
Summary: A novel polycaprolactone-zeolite nanocomposite scaffold was developed for sustained release of cisplatin in bone cancer treatment. The scaffold exhibited high porosity and suitable pore diameters, and the release of cisplatin had a cytotoxic effect on MG63 cells through a pH-sensitive and sustained release mechanism.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2022)
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)