Article
Materials Science, Ceramics
Hao Wu, Chengxin Lei, Yan Du, Wangtu Huo, Yusheng Zhang, Lian Zhou
Summary: The strength and ductility of titanium matrix composites (TMCs) often show a trade-off, but this study successfully achieved a balance between strength and ductility through specific processing methods. By using electrophoretic depositing and spark plasma sintering, a laminated titanium composite with high strength and good ductility was created.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Composites
Wendian Fan, Longlong Dong, Fukai Zheng, Mingjia Li, Guodong Sun, Junjie Xu, Xiang Li, Yongqing Fu, Ahmed Elmarakbi, Lianwen Wang, Yusheng Zhang
Summary: Composites of TiC/(TC18 + TC4) with designed heterogeneous network structures, reinforced by graphene and ss-TC18 alloy, were successfully synthesized using spark plasma sintering. The composites exhibit superior high strength and ductility compared to monolithic TC4 and TC18. Incompatible plastic deformation behaviors of TC18 and TC4 enhance the ductility of the composites, and refinement strengthening and heterostructure-deformation induced hardening are key mechanisms for achieving high strength.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Zhong-Zheng Jin, Min Zha, Hai-Long Jia, Pin-Kui Ma, Si-Qing Wang, Jia-Wei Liang, Hui-Yuan Wang
Summary: The utilization of SRS combined with HPR process has led to an increase in elongation with maintained tensile strength in Mg-6Zn-0.2Ca alloy. The refined grain structure and eutectic phase, along with the presence of excessive Ca solute atoms, contribute to the enhanced ductility and strain-hardening ability of the alloy.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Run Chen, Qi An, Shuai Wang, Lujun Huang, Rui Zhang, Cunyu Wang, Shipeng Zhou, Lin Geng
Summary: TiBw/TC18 composites with low reinforcement content were designed and successfully fabricated to improve the ductility of TC18 titanium alloy without sacrificing its strength. The addition of TiBw resulted in a network microstructure, beta grain refinement, and an increase in the proportion of alpha-colony, which significantly enhanced the tensile strength and elongation of the composites. However, a further increase in TiBw volume fraction led to a decrease in both the strength and ductility of the composites.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Yang Liu, Xing Wang, Daibo Zhu, Yuanzhe Li, Bingqing Yao, Tianyou Sun, Hualei Miao
Summary: This study fabricated zinc alloy composites containing 27 wt% Al using hot-pressed sintering process and different amounts of CNTs, which simultaneously improved the tensile strength and ductility of the composites. Interface characterization showed the formation of in-situ carbides, ZnC8, between CNTs and Zn matrix, improving the interfacial bonding for enhanced load transfer efficiency.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Multidisciplinary
Wangtu Huo, Chengxin Lei, Yan Du, Guo Chang, Ming Zhu, Biao Chen, Yusheng Zhang
Summary: Inspired by the structure of nacre, researchers have developed a new type of titanium matrix composites with high strength and good plasticity. The composites mimic the brick-and-mortar architecture of nacre and exhibit superior strength-ductility synergy. This study provides a facile approach to fabricating large-sized artificial composites with outstanding properties.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Tong Gao, Zengqiang Li, Kaiqi Hu, Yihan Bian, Xiangfa Liu
Summary: In this study, 8.2AlN/Mg-8Al composites reinforced with in situ and/or ex situ AlN particles were synthesized. It was found that the in situ-formed AlN particles, acting as particle chains, were more efficient in enhancing mechanical properties compared to ex situ particles. The in situ-prepared composite showed improvements in density, hardness, and compressive strength over the ex situ composites, providing insights for designing particle-reinforced Mg composites using various methods.
Article
Materials Science, Multidisciplinary
Q. Yan, B. Chen, L. Cao, K. Y. Liu, S. Li, L. Jia, K. Kondoh, J. S. Li
Summary: A quasi-networked reinforcement structure in titanium matrix composites was achieved by uniformly coating Ti-6Al-4V spherical powders with a graphene nanosheet layer, leading to higher tensile strength and good ductility compared to randomly dispersed graphene nanosheets and TiC. The study provided a method to fabricate titanium matrix composites with high strength and good ductility by forming a networked hybrid reinforcement structure.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Jun Li, Fucheng Wang, Chunsheng Shi, Enzuo Liu, Chunnian He, Naiqin Zhao
Summary: By effectively combining vacuum pressureless sintering and hot-extrusion processes, MgAlB4 whisker reinforced Al composites with rational reinforcement distribution were successfully prepared. The composite exhibited excellent comprehensive properties with high ultimate tensile strength and fracture elongation, with the alignment distribution of MgAlB4 whiskers along the extrusion direction being the main reason for the improved ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Multidisciplinary
Z. Y. Xu, C. F. Fang, N. Wang, R. Wang, X. P. Zhang, Y. M. Wang
Summary: This study investigates the use of Al3Fe nanoparticles to reinforce Mg matrix composites. The results show that the as-rolled 0.5 wt% Al3Fe/AZ31 composite exhibits the highest yield and ultimate tensile strength, while maintaining a certain level of ductility compared to the AZ31 alloy. It is found that the activation of non-basal dislocation slip leads to a higher early stage strain hardening rate and late stage uniform elongation. These findings provide insight into overcoming the strength-ductility trade-off in Mg matrix composites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Ceramics
Shuai Wang, LuJun Huang, Qi An, ZiShuo Ma, Rui Zhang, Hua-Xin Peng, Lin Geng
Summary: This study presents the ingenious design and fabrication of Ti6Al4V composites reinforced by in-situ generated TiB whiskers. The composites exhibit a hierarchical reinforcement distribution, characterized by a network distribution of TiB whiskers in the TC4 matrix and a homogeneous distribution of TiB whiskers inside the network cells. The designed composites demonstrate remarkable strength-ductility synergy, with improved tensile strength and elongation compared to the matrix alloy. An in-situ tensile test and microstructure evolution analysis provide evidence for the role of TiB whiskers in enhancing ductility and strengthening efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Li Zhang, Kun-kun Deng, Kai-bo Nie, Cui-ju Wang, Chao Xu, Quan-xin Shi, Yu Liu, Jie Wang
Summary: Incorporating graphite/graphene into a Mg alloy matrix is a promising approach for lightweight heat dissipation materials. However, their different surface characteristics pose challenges in composite fabricating and interface controlling. This study proposes a new strategy of in situ interfacial modification to achieve excellent thermal conductivity and mechanical properties in graphite/Mg composites. The strong chemical interface bonding facilitated by in situ interface modification enhances interfacial cohesion and thermal conduction, resulting in superior strength-thermal conductivity synergy.
Article
Metallurgy & Metallurgical Engineering
Peitang Zhao, Xuejian Li, Hailong Shi, Xiaoshi Hu, Chunlei Zhang, Chao Xu, Xiaojun Wang
Summary: In this study, graphene reinforced magnesium matrix composites were prepared using the in situ liquid-state method. The tensile strength of the composites was improved by increasing the content of graphene nanoparticles (GNPs). Additionally, the composites exhibited a significant plastic deformation stage, with the ductility of the 0.12 GNPs/Mg6Zn composites reaching 27.6%. Thus, this novel preparation method has great potential for fabricating Mg matrix composites with high strength and high ductility.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Jian Huang, Zhongming Zhang, Changlin Yang, Bin Zhang, Yunxia Sun, Tuo Liang, Tian Li, Zhu Mao, Jiemin Zu, Jingchao Wang, Ruiru Cai, Jianfeng Liu
Summary: The hot tearing susceptibility of AlN/AZ91D composites was evaluated using the CRC method combined with thermal analysis. It was found that the composites had lower susceptibility compared to AZ91D. The microstructure analysis showed that the in-situ AlN particles refined the matrix grains and shortened the intergranular shrinkage distance, which improved the resistance to hot tearing.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
M. Adil Mehmood, Mohammad Mujahid, Andy Godfrey, Muhammad Farooq Zafar, Khurram Yaqoob
Summary: This study aims to develop materials with better combinations of strength and ductility by adding TiB2 to the CoCrFeNi high entropy alloy (HEA). The interaction between titanium diboride (TiB2) and chromium in the HEA matrix during melting resulted in the in-situ formation of chromium borides with plate morphology. The mechanical characterization of the developed composites showed a wide range of mechanical properties, with excellent combinations of strength and ductility achieved by adding 6 wt% TiB2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Food Science & Technology
Yuandong Lin, Ji Ma, Qijun Wang, Da-Wen Sun
Summary: There is an increasing interest in the role of nondestructive and rapid detection technologies in the food industry. Machine learning techniques have shown great potential in handling complex data and building calibration models. Novel nondestructive technologies, such as acoustic analysis, machine vision, electronic nose, and spectral imaging, combined with machine learning, have wide applications in food quality assessment.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Psychology, Biological
Graham Albert, Erika Wells, Steven Arnocky, Chang Hong Liu, Jessica K. Hlay, Carolyn R. Hodges-Simeon
Summary: This study examined whether facial sexual dimorphism influences selective attention and conducted several experimental paradigms to test this hypothesis. The results showed that masculinized faces did not attract participants' selective attention in the different experimental tasks.
ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY
(2023)
Article
Engineering, Environmental
Ying Ma, Hao Wang, Qiqi Wang, Xiaodong Cao, Huichang Gao
Summary: This study developed a multi-channel nerve guidance conduit (NGC) with dual electrical activity of piezoelectricity and conductivity to enhance peripheral nerve regeneration. In vitro and in vivo experiments demonstrated that the electroactive NGC promoted cell proliferation, differentiation, axonal regeneration, and functional recovery of peripheral nerves, indicating its great potential in repairing peripheral nerve injuries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Lei Wang, Haiyan Cheng, Zhiting Zhang, Yang Zhang, Jingwei Huang, Houde She, Chunli Liu, Qizhao Wang
Summary: Utilizing organic structures to combine with TiO2 is an effective strategy for improving the photo-catalytic performance of TiO2. However, there is limited research on the impact of modulation at the organic molecular level for COF construction on the optical and electronic features of TiO2-COF heterostructures. In this study, a nitrogen-rich covalent organic framework (COF) was covalently integrated with amino-propyltriethoxysilane modified TiO2 (APTES-TiO2) through a Schiff-base reaction. The hybridized TiO2@TMP-COF with honeycomb-like morphology showed enhanced intramolecular charge transfer and photocatalytic CO2 reduction reaction (CO2RR) compared to the structure-similar COF established hybrid, TiO2@TM-COF. The study demonstrates the potential of creating heterostructures to improve light absorption and charge delivery in photocatalysis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Shulin Dong, Yingdong Qu, Ruirun Chen, Guanglong Li, Wei Zhang, Qi Wang, Hongze Fang, Jingjie Guo, Bo Yu
Summary: By designing and preparing Ti-44Al-4Nb-0.5Fe-0.1B and Ti-44Al-2Nb-2Fe-0.1B alloys, the study focuses on whether and why the hot deformation processing capability of the new alloys is improved. The results show that the Ti-44Al-2Nb-2Fe-0.1B alloy has lower true stress, moderate diffusion activation energy, lower stress exponent, larger hot processing window, lower dislocation density, and more adequate dynamic recrystallization, demonstrating its good hot deformation processing capability and service properties.
Article
Engineering, Electrical & Electronic
Tao Zhang, Guoli Li, Rui Zhou, Qunjing Wang, Lei Wang
Summary: Compared to traditional single-axis motors, reluctance spherical motors (RSMs) can generate rotational torque in three spatial latitudes on a single motor, enabling three degrees-of-freedom (DOF) motion. This paper addresses the problem of consuming huge computational resources and long computation time in calculating the torque of RSM using the finite element method (FEM) by developing a torque model using the virtual work method. The results show that this method greatly reduces the amount of computing and simulation work with accurate modeling, providing a theoretical basis for the study of energization strategies and real-time control of RSM.
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
(2023)
Article
Ecology
Shuying Yu, Xuesong Kong, Qi Wang, Zhiwei Yang, Jian Peng
Summary: This study quantitatively assessed flood resilience in the Dongting Lake Basin using a process-based evaluation framework. The results showed that the overall resilience of the basin was high, but the flood resilience in the Dongting Lake Eco-economic Zone was poor. The synergy of robustness and resistance dominated flood resilience, providing a new process perspective for improving it.
LANDSCAPE AND URBAN PLANNING
(2023)
Article
Materials Science, Multidisciplinary
Zecui Gao, Tengfei Zhang, Qimin Wang, Paul Heinz Mayrhofer
Summary: The performance of electrochemical capacitors is influenced by their surface area, stability, and conductivity. By using magnetron sputtering, columnar and zig-zag y-Mo2N thin-film electrodes were prepared, with the latter exhibiting a 4 times higher capacitance than the former. Both electrodes showed excellent cycling stability and the zig-zag y-Mo2N electrode demonstrated a higher power density and volumetric capacitance compared to the columnar y-Mo2N electrode. Additionally, the zig-zag y-Mo2N supercapacitors displayed mechanical flexibility up to a bending angle of 107 degrees.
MATERIALS & DESIGN
(2023)
Article
Engineering, Chemical
Yuefa Jia, Hongru Han, Yi Luo, Qizhao Wang, Bo Wha Lee, Chunli Liu
Summary: In this study, Z-scheme ZnFe2O4-SrTiO3 nanocomposite was prepared and used for tetracycline hydrochloride (TCH) degradation and CO2 conversion. The nanocomposite showed significantly higher TCH degradation efficiency and CO2 photoreduction activity compared to pure ZnFe2O4 and SrTiO3. The enhanced activities were attributed to improved solar energy utilization and efficient electron-hole pair separation through a Z-scheme charge transfer model. The results suggest that ZnFe2O4-SrTiO3 nanocomposite has great potential for wastewater purification and CO2 reduction to renewable solar fuels.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yi Luo, Hongru Han, Jiajie Li, Qizhao Wang, Weibin Zhang, Yuefa Jia
Summary: In this study, Fe doped Bi2O2S nanosheets were synthesized for TCH photo-Fenton degradation. The optimized 2mol%Fe-BOS achieved greatly enhanced TCH degradation efficiency up to 81.01% under visible light irradiation. The enhanced catalytic performance of Fe-BOS was mainly attributed to the migration of photoinduced electrons to Fe3+ to generate Fe2+ and the rapid production of hydroxyl radicals (center dot OH) via the reaction between Fe2+ and H2O2.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Orthopedics
Fei Guo, Shuaiying Jia, Qiyan Wang, Qinyu Liu, Mingquan Hu, Wenzhang Wang, Shijian Liu, Qiang Li, Bin Lu, Yeying Zheng
Summary: Patients with hypertension undergoing prone spine surgery are at risk of developing POCD, and intraoperative SstO2 is associated with POCD, while SctO2 shows no association with POCD.
ORTHOPAEDIC SURGERY
(2023)
Article
Biochemical Research Methods
Dongfang Li, Manli Zhao, Chao Tao, Xiaoqin Qian, Xiaojun Liu
Summary: Microcirculation imaging plays a significant role in the early diagnosis and assessment of various diseases. In this study, an optical-resolution photoacoustic microscopy (OR-PAM) was used to image the microvasculature of the nailbed. The sensitivity of imaging was significantly improved by hydrating the nail. In vivo experiments further demonstrated the enhanced sensitivity and practicality of OR-PAM, while the quantitative analysis of capillary loops provided valuable indicators for clinical microcirculation detection using OR-PAM.
JOURNAL OF BIOPHOTONICS
(2023)
Article
Plant Sciences
Kaihuai Li, Rongxian Hou, Xue Zhou, Chunlan Xiong, Cheng Li, Yong Wang, Fengquan Liu
Summary: In this study, a potential regulator of HSAF biosynthesis, RecX, was identified. Deletion of recX increased HSAF production, while overexpression of recX suppressed HSAF production. It was found that RecX directly binds to the promoter region of the lafB gene to inhibit its transcription and thus decrease HSAF production in L. enzymogenes.
PHYTOPATHOLOGY RESEARCH
(2023)
Article
Chemistry, Physical
Ziqiang Wang, Guanghui Yang, Pengjun Tian, Kai Deng, Hongjie Yu, You Xu, Xiaonian Li, Hongjing Wang, Liang Wang
Summary: In this study, we propose a method to encapsulate rhodium nanoparticles (NPs) on a palladium metallene film using a bromine initiator for catalyzing both the oxidation and reduction reactions. The Rh/Pd film exhibits excellent hydrogen evolution and hydrazine catalytic activities due to its abundant active sites and rapid charge transfer rate. In the hydrazine-assisted water splitting system, the Rh/Pd film only requires a low overpotential to produce hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yitian Zhou, Yifan Liu, Hehua Tang, Bo-Lin Lin
Summary: Controlling the binding energy of hydrogen by introducing a secondary metal is an effective approach to design Ru-based electrocatalysts for improving the HER performance. In this study, a series of multi-active site NiRu bimetallic materials with improved HER catalytic performance were synthesized through a facile microwave synthesis method. The Ni1Ru1/C sample, with the RuO2/NiRu heterogeneous interface, exhibited the best HER performance and achieved comparable overpotential to commercial Pt/C.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
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)
