Article
Materials Science, Ceramics
Aldo E. Marino-Gamez, Guillermo-E Acosta-Gonzalez, M. Pech-Canul, M. B. Hernandez, S. Garcia-Villarreal, Patricia Zambrano-Robledo, Bertha Silvana Vera Barrios, J. A. Aguilar-Martinez
Summary: High-energy ball milling was used to modify the nanoparticle size of TiO2 and study its effects on structural, microstructural, and optical properties. Increasing milling time resulted in smaller particle sizes, broadening of X-ray diffraction peaks, decreased reflectance in UV-Vis spectra, and a decrease in bandgap transition energy. SEM analysis also showed a more homogeneous distribution of nanoparticle size with longer milling duration.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Vaishnavi B. R. Krupa, Arup Dasgupta, Chanchal Ghosh, Shyam Kanta Sinha
Summary: This study investigates the structural modification in nanocrystalline yttria induced by high energy ball-milling as a function of milling duration. It is found that as the milling duration progresses, the cubic phase gradually transforms to the monoclinic phase, and the monoclinic phase is more stable at smaller sizes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Patric Berger, Hans Flandorfer
Summary: Lithium containing alloy systems, especially the ternary Li-Sb-Sn system, are studied as potential electrode materials for lithium ion batteries. Experimental results show that SbSn can uptake up to 15 at.% Li, forming Li3Sb and confirming the ternary phase Li8SbxSn3-x.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Metallurgy & Metallurgical Engineering
Clement Pechberty, Antoine Klein, Bernard Fraisse, Lorenzo Stievano, Romain Berthelot
Summary: Different polymorphs of Mg-Sn and Mg-Pb intermetallic compounds were prepared by high-energy mechanical alloying, among which the cubic polymorphs Mg2Sn and Mg2Pb were found to be preferentially formed during alloying process and showed compatibility with the electrolyte.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Metallurgy & Metallurgical Engineering
Clement Pechberty, Antoine Klein, Bernard Fraisse, Lorenzo Stievano, Romain Berthelot
Summary: Different polymorphs of Mg-Sn and Mg-Pb intermetallic compounds were prepared by high-energy mechanical alloying. The cubic polymorphs Mg2Sn and Mg2Pb exhibited superior alloying and dealloying performance, while other polymorphs acted as by-products or intermediate phases in the electrochemical process.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Crystallography
Hana Ibn Gharsallah, Myriam Azabou, Mohamed Khitouni, Jason Daza, Joan-Josep Sunol
Summary: In this study, the structural, microstructural, thermal, and magnetic properties of a Fe-25at%Al alloy produced by high-energy mechanical milling were investigated. The results showed the formation of a supersaturated solid solution and various phase transitions during the milling process, leading to changes in the magnetic behavior.
Article
Physics, Condensed Matter
Anita D. Souza, Sudhindra Rayaprol, M. S. Murari, Mamatha Daivajna
Summary: Polycrystalline bulk samples of La0.7-x BixSr0.3MnO3 manganites were processed into nanoparticles through high energy planetary ball milling, affecting magnetic transitions and magnetization with the influence of particle size and Bi3+.
PHYSICA B-CONDENSED MATTER
(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
Materials Science, Multidisciplinary
Bo Li, Liqing He, Yan Guo, Huajun Zhao, Jingjun Shen, Wen Lei, Jincheng Xu, Huaiyu Shao
Summary: The amorphous phase has advantages over crystalline counterparts in energy storage due to abundant defects, active sites, and less structural strain. High energy ball milling is a convenient and universal method to prepare amorphous materials with defects and fresh surfaces. This study utilizes high energy ball milling to prepare transition metal vanadates with enhanced lithium storage performance.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Guvenc Akgul, Funda Aksoy Akgul
Summary: A series of zinc oxide semiconductor nanocomposites doped with different concentrations of cobalt were synthesized using a simple and effective mechanical ball-milling method. The resulting nanocomposites crystallized in a hexagonal wurtzite structure and exhibited ferromagnetic behavior at room temperature.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Priyadarshini Balasubramanian, Manjusha Battabyal, Arumugam Chandra Bose, Raghavan Gopalan
Summary: The phase pure ZnSb thermoelectric material was achieved through high-energy ball milling in a shorter time, showing enhanced thermoelectric properties with a thermoelectric figure of merit of 0.76 at 600 K, the highest value reported so far in binary ZnSb materials. This study provides insights into the phase evolution and improved thermoelectric properties of ZnSb materials, which could aid in scaling up the processing of high-performance ZnSb thermoelectric materials.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Materials Science, Ceramics
K. Vasanthakumar, Revathi Gorle, S. Ariharan, Srinivasa Rao Bakshi
Summary: Single phase high entropy carbide (Ti0.2W0.2Ta0.2Mo0.2V0.2)C-0.8 compacts were successfully synthesized by reactive spark plasma sintering, showing excellent mechanical and thermal properties. The carbide exhibited uniform distribution of transition metals and high hardness and fracture toughness under sintering at 1800 degrees C.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Analytical
Joao Paulo Winiarski, Breno Ferreira Tavares, Kelli de Fatima Ulbrich, Carlos Eduardo Maduro de Campos, Antonio A. U. Souza, Selene M. A. Guelli U. Souza, Cristiane Luisa Jost
Summary: This study utilized waste from the steel industry as an electrode modifier material for electrochemical monitoring of neurotransmitters. The waste material was modified through ball milling, resulting in improved magnetic properties and selectivity. The modified electrode showed enhanced sensitivity and selectivity for dopamine, serotonin, and tryptophan.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Jamieson Brechtl, Michael R. Koehler, Michael S. Kesler, Hunter B. Henderson, Alexander A. Baker, Kai Li, James Kiggans, Kashif Nawaz, Orlando Rios, Ayyoub M. Momen
Summary: Magnetocaloric alloys, such as LaFeMnSi, have shown potential for use in non-vapor compression cycles. The study revealed that high energy ball milling retained most of the original magnetocaloric phase in the powders, while also reducing crystallinity. Additionally, a decrease in Fe content was found to lead to a drop in the Curie temperature, with milling causing an increase in the Curie temperature by approximately 3-6 degrees Celsius.
Article
Chemistry, Multidisciplinary
Miecio de Oliveira Melquiades, Leonardo Soares de Oliveira, Ranilson Angelo da Silva, Sergio Michielon de Souza, Marcelo Ornaghi Orlandi
Summary: Layered tin-based dichalcogenide semiconductors were synthesized via high-energy ball milling, showing anisotropic nanostructures with microstrain effects. Replacing the 1d site with heavier chalcogenides reduces microstrain and affects optical properties.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
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)