Review
Materials Science, Multidisciplinary
Santosh K. Gupta, K. Sudarshan, R. M. Kadam
Summary: Optical nanomaterials have garnered significant attention due to their superior advantages such as photostability, ease of coating on any surface, and large Stoke/Antistoke shifts. These properties not only contribute to technological advancements but also help in addressing the global energy crisis and improving the standard of living for the general population.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Shayan Angizi, Xianxuan Huang, Lea Hong, Md Ali Akbar, P. Ravi Selvaganapathy, Peter Kruse
Summary: In this study, a highly pH-sensitive substrate was fabricated by controlling the type and defect density of graphene derivatives. The pH-sensing mechanisms of graphene were demonstrated using nanomaterials of different graphene structures. The study identified three competing mechanisms of pH sensitivity and investigated the function and density of graphene pH-sensitive functional groups. It opens up a new avenue for integrating micro-nano-sized pH sensors based on graphene derivatives into next-generation sensing platforms.
Review
Chemistry, Multidisciplinary
Ping Chen, Wei Han, Mei Zhao, Jianwei Su, Zexin Li, Dongyan Li, Lejing Pi, Xing Zhou, Tianyou Zhai
Summary: 2D rare earth materials have shown fascinating luminescence, magnetism, and electric properties with potential applications in next-generation devices. This review focuses on crystal structures, synthesis methods, properties, and novel photodetector constructions using RE elements, highlighting the importance of exploring new compounds and broadening applications in this field.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Peipei Dang, Guodong Zhang, Wei Yang, Hongzhou Lian, Guogang Li, Jun Lin
Summary: Combining rare-earth ions with halide perovskites can produce interesting optical properties in the visible and NIR regions. In this study, RE3+ ions (RE: Nd, Ho, Er, Tm) were successfully introduced into Cs4Cd1-wMnwBi2Cl12 quadruple perovskites through a hydrothermal method. The materials exhibited characteristic emission of RE3+ in the red and NIR regions via constructing a Mn2+ energy bridge. The energy transfer processes and mechanism were confirmed, and an evolution process from direct to indirect band gaps was verified.
CHEMISTRY OF MATERIALS
(2023)
Article
Multidisciplinary Sciences
Jeongmo Kim, Reinaldo Chacon, Zijun Wang, Eric Larquet, Khalid Lahlil, Aymeric Leray, Gerard Colas-des-Francs, Jongwook Kim, Thierry Gacoin
Summary: The authors present a novel method to retrieve the three-dimensional orientation of luminescent, lanthanide-doped nanorods from a single-shot emission spectrum, eliminating the need for complicated optical setups typically required to determine the orientation of nanoscale objects in three-dimensional space.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Zheng-Ze Pan, Aleksandra Govedarica, Hirotomo Nishihara, Rui Tang, Cong Wang, Yi Luo, Wei Lv, Fei-Yu Kang, Milana Trifkovic, Quan-Hong Yang
Summary: The study found that adjusting the sol's pH can achieve optimal self-aggregation and dispersion balance between TOCN and GO, resulting in cryogels with regular micro-honeycomb structures. By maximizing the TOCN-GO interactions and the dispersoid complexes' high affinity for ice crystals, a micro-honeycomb morphology can be obtained along the freezing direction.
Article
Chemistry, Physical
Manli Li, Zhihao Ji, Guodong Sheng, Shaodong Zhou, Kaikai Chang, Enqi Jin, Xiaojie Guo
Summary: The scavenging mechanism of rare earth metal ions La(III) and Nd(II) in water by graphene oxide (GO) was systematically investigated in this study. The results showed that GO exhibited high adsorption capacities for La(III) and Nd(II) at 20°C and pH 5.5, reaching equilibrium within 120 minutes. The adsorption kinetics followed the pseudo-first-order model and the adsorption isotherms were well described by the Langmuir model, indicating GO as a promising material for removing La(III) and Nd(II) from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Ahmed M. Shahr El-Din, Tarek Monir, Emad H. Borai
Summary: A nanocomposite material was developed for the removal of Th(IV), U(VI) and Fe(III) from rare earth chloride liquor, showing high adsorption capacity. Selective removal of target metal ions was achieved under pH 2.0 condition.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Chemistry, Applied
Rabia Kirkgecit, Handan Ozlu Torun, Fatma Kilic Dokan, Esra Ozturk
Summary: In this research, undoped CeO2 and Ce0.85La0.10M0.05O2 (M: Sm, Er, Y) compounds were synthesized by the hydrothermal method and their multi-functional properties were investigated. The addition of rare earth ions created oxygen defects in the compounds, affecting their electrical and luminescence behaviors. Characterization techniques such as XRD, BET, UV-vis DRS, SEM, PL spectroscopy, and EIS were employed to analyze the synthesized products. The compounds were found to be nanostructured and have a cubic phase. The total conductivity and bandgap energy of the compounds were calculated, and the emission spectra showed different colors depending on the additive type.
JOURNAL OF RARE EARTHS
(2022)
Article
Materials Science, Ceramics
S. V. Kameneva, Kh. E. Yorov, R. K. Kamilov, S. Yu. Kottsov, M. A. Teplonogova, T. V. Khamova, M. A. Popkov, I. V. Tronev, A. E. Baranchikov, V. K. Ivanov
Summary: Aerogels containing rare earth elements are promising compounds for designing functional materials due to their combination of aerogel properties and the luminescent and catalytic properties of rare earth elements. A modified sol-gel method was developed to produce mixed rare earth oxide aerogels with high metal to metal ratio and individual aerogels. The aerogels obtained possess mesoporous structure and high surface area, and show strong luminescence in the visible region after calcination at high temperature.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Tijana Stamenkovic, Dejan Pjevic, Jugoslav Krstic, Maja Popovic, Vladimir Rajic, Vesna Lojpur
Summary: A series of SrGd2O4 samples doped with different concentrations of Sm3+ and Dy3+ were prepared through glycine-assisted combustion synthesis. X-ray Powder Diffraction investigation confirmed the presence of pure orthorhombic lattice SrGd2O4. Energy Dispersive X-ray Spectroscopy showed that the desired elements were incorporated in the structure. Field Emission Scanning Electron Microscopy revealed the morphology of the samples as porous aggregated particles consisting of approximately 50 nm-sized spherical particles. Mercury Intrusion Porosimetry demonstrated the presence of a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy confirmed the successful incorporation of Dy3+ and Sm3+ ions. Down-conversion luminescence spectra showed typical emission transitions for Sm3+ and Dy3+ ions. The energy band gap of the doped samples was calculated to be 4.3 eV using UV-VIS Diffuse Reflectance Spectroscopy. UV-VIS Absorption Spectroscopy observed the photocatalytic degradation process, with approximately 50% of Rhodamine B being mineralized after 4 hours of simulated Sun exposure.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xu Sang, Kang Zhang, Adnan Khan, Rui Xu, Yan Li, Jiaxin Yang, Ming Feng, Lisa Liu, Feng Song, Wei Huang
Summary: Electrically tunable polarized luminescence of aligned Eu(tta)(3)phen/E7 composites is achieved by the interaction between liquid crystal hosts and rare earth complex guests. The generation mechanism of the polarization effect is explored from three different aspects, including polarized energy absorption of incident light, site symmetry of Eu3+ ions, and polarized energy transfer from E7 to Eu(tta)(3)phen. The convenient control of well-aligned Eu(tta)(3)phen complex by embedding Eu(iii) complex guest in E7 host and utilizing electric field forces is confirmed.
Article
Chemistry, Applied
Xiaoru Zhao, Xinyu Jiang, Dongming Peng, Jie Teng, Jingang Yu
Summary: Three-dimensional graphene oxide-tris(4-aminophenyl)amine (GO-TAPAx:y) composites with different GO-to-TAPA mass ratios were prepared and characterized for their adsorption capacities of rare earth elements (REEs). The results indicate that the introduction of specific molecules enhances the adsorption ability of the composites, making them feasible for the enrichment of REE ions in real samples.
JOURNAL OF RARE EARTHS
(2021)
Review
Materials Science, Multidisciplinary
Mina Shirzadi-Ahodashti, Sobhan Mortazavi-Derazkola, Mohammad Ali Ebrahimzadeh
Summary: Nanostructures composed of rare earth oxides, such as Ho2O3 and Nd2O3, have desirable characteristics, with neodymium oxides known for their distinctive electrical and optical properties. The synthesis of Ho2O3 and Nd2O3 nanostructures through different techniques is comprehensively described and examined in this review.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Multidisciplinary Sciences
Marius Jakoby, Carolin Beil, Pariya Nazari, Bryce S. Richards, Michael Seitz, Andrey Turshatov, Ian A. Howard
Summary: This study demonstrates that coordination polymers based on rare-earth metal centers and carboxylated 4,4'-diphenyl-2,2'-bipyridine ligands can exhibit multi-mode emission, including biluminescent behavior. The research reveals the mechanism behind the different emissions from the singlet and triplet states of the ligand.
Review
Engineering, Biomedical
Liszt Y. C. Madruga, Matt J. Kipper
Summary: Electrospinning is a versatile technology for fabricating polymer fibers, especially for biological applications. Recent research has focused on using biopolymers such as sulfated polymers, tannin derivatives, and modified collagen to produce new fibers. The potential advantages of these biopolymer-based fibers for biomedical applications are also being explored to enhance or achieve new properties for electrospun materials.
ADVANCED HEALTHCARE MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Aigerim Maksot, Sadia Momtaz Sorna, Melissa Blevens, Ronald G. Reifenberger, Kimberly Hiyoto, Ellen R. Fisher, Tony Vindell, Yan Vivian Li, Matt J. Kipper, Candace Su-Jung Tsai
Summary: This study investigated the release of engineered nano particles (ENPs) from contaminated protective clothing during human motion and evaluated the retention of ENPs on the fabric. The results showed that different fabric materials had varying effects on particle resuspension, with Tyvek fabric being the most effective in trapping and retaining ENPs.
ACS APPLIED NANO MATERIALS
(2022)
Article
Oncology
Qinghua Hou, Yanfeng Zhong, Linzhuang Liu, Liusheng Wu, Jixian Liu
Summary: This study constructed a prognostic model based on m6A-related lncRNAs for predicting the prognosis of lung adenocarcinoma (LUAD) patients and screened potential therapeutic drugs. The results showed that the prognostic model could effectively predict the survival rate of LUAD patients, and the screened drugs had potential clinical application value.
Article
Engineering, Chemical
Debora P. Facchi, Suelen P. Facchi, Paulo R. Souza, Elton G. Bonafe, Ketul C. Popat, Matt J. Kipper, Alessandro F. Martins
Summary: Ecovio (R) is a hydrophobic and biodegradable synthetic polymer blend that can be electrospun with the addition of Tween 20 and a chloroform/formic acid mixture. The resulting fibers have thin diameters and improved electrical conductivity and viscosity. The addition of Tween 20 also makes the fibers wettable and capable of adsorbing silver ions, enhancing their antimicrobial properties. The biodegradable composite filter made from Ecovio (R)/Tween 20 fibers can effectively remove bacteria from water.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Evandro Bonifacio, Debora P. Facchi, Paulo R. Souza, Johny P. Monteiro, Ketul C. Popat, Matt J. Kipper, Alessandro F. Martins
Summary: This study presents an innovative adsorbent material obtained through dialysis and freezing-thawing cycles, resulting in a solid adsorbent with water insolubility and stability. The adsorbent showed high efficiency in removing dyes from water and exhibited favorable kinetic and equilibrium properties. The adsorption process was spontaneous, endothermic, and governed by hydrophobic interactions.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Multidisciplinary
Tian Hao, Yao Wang, Miaorong Zhang, Zhipeng Liu, Jixian Liu, Linjun Huang, Jie Li, Yao Peng, Jianguo Tang
Summary: The graphene oxide-silica (GO-SiO2) nanoparticles were grafted with block polymers PEG and LPET to prepare the additive GS-IPTES plus PEG-LPET (GSIP). The addition of small amounts of GSIP dramatically enhanced the crystallization and mechanical properties of the PET/GSIP composite. The improvements in properties were attributed to the synergistic effects of GS and block polymer chains.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Oncology
Liusheng Wu, Yanfeng Zhong, Xiaoya Yu, Dingwang Wu, Pengcheng Xu, Le Lv, Xin Ruan, Qi Liu, Yu Feng, Jixian Liu, Xiaoqiang Li
Summary: This study aimed to investigate the application value of selective polyadenylation in lung adenocarcinoma (LUAD), particularly in immune cell infiltration, biological transcription function, and survival prognosis. The research analyzed mRNA expression data and immune cell content from LUAD patients to construct a LUAD risk score prognostic model. The study found that the immune score significantly affected the prognosis of LUAD patients, and identified specific immune cell types and immunosuppressor genes correlated with the risk score. The findings highlight the importance of selective polyadenylation in LUAD development, immune invasion, and survival prognosis.
Article
Biotechnology & Applied Microbiology
Chao Chen, Haozhen Liu, Qumiao Xu, Xiuqing Zhang, Feng Mu, Jixian Liu
Summary: PTPRT gene is associated with cancer metastasis, and its mutation is correlated with poor prognosis, serving as a potential biomarker for cancer metastasis.
BIOMED RESEARCH INTERNATIONAL
(2022)
Review
Materials Science, Multidisciplinary
Xinhui Mao, Yanxin Wang, Xianhang Yan, Zhenzhen Huang, Zhiyuan Gao, Yuxuan Wang, Linjun Huang, Matt J. Kipper, Jianguo Tang
Summary: Human activities are generating increasing amounts of oily water, making oil/water separation methods crucial. Membranes and nanofibers with superwetting surfaces offer low cost, high efficiency, and environmental friendliness in oil/water separation. This review discusses various types of superwetting membranes, their structural features, manufacturing technology, applications, and outlines the challenges and future opportunities in the field of oil/water separation.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Zhenzhen Huang, Yanxin Wang, Xianhang Yan, Xinhui Mao, Zhiyuan Gao, Matt J. Kipper, Linjun Huang, Jianguo Tang
Summary: In this study, a luminescent lanthanide complex, Eu(tta)3phen, was used to prepare fluorescent nanofiber films. The nanofibers, composed of chitosan and polyethylene oxide containing silica nanoparticles, encapsulated the Eu(tta)3phen. The resulting Na-CS/PEO-SiO2@Eu(tta)3phen fiber film showed high sensitivity and a wide detection range, making it a recyclable sensor for the detection of Cu2+ ions.
Article
Materials Science, Multidisciplinary
Fengchun Jia, Liu Yang, Zihao Li, Liyue Sun, Dehao Yu, Yu Song, Yanxin Wang, Linjun Huang, Jianguo Tang
Summary: Graphene oxide (GO) has great potential in molecular separation for water purification due to its tunable physicochemical properties. A method to precisely control interlayer spacing using double cross-linking of sodium alginate (SA) and multivalent cations is reported. The results show that the addition of GO-SA component enlarges the nanochannels, leading to a significantly increased water permeability and improved dye screening performance.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Xianhang Yan, Yanxin Wang, Zhenzhen Huang, Zhiyuan Gao, Xinhui Mao, Matt J. Kipper, Linjun Huang, Jianguo Tang
Summary: In this paper, Janus PAN nanofiber membranes (PNM) were prepared by co blending hydrophilic SiO2 nanoparticles, carbon nanotubes (CNTs) doped with PAN (PNM-SiO2 and PNM-CNT, respectively) and then using sequential multilayer electrospinning. The existence of electrostatic mutual gravitational force between SiO2 and CNTs makes the binding between the multilayer membranes exist more firmly. Janus PAN membranes have different wetting properties and can efficiently separate water-in-oil and oil-in-water emulsions with high flux and separation efficiency.
ACS APPLIED NANO MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Jie Li, Yao Wang, Liangang Shan, Lei Qian, Wenchao Wang, Jixian Liu, Jianguo Tang
Summary: In this study, a general protocol for synthesizing thiolated folate derivatives was reported. The high purity S-S-containing diol was synthesized through a newly developed green oxidation protocol without catalyst, and it was then used to modify folic acid through esterification to synthesize thiolated folate. The effectiveness of this method was demonstrated by the successful modification of silver nanoparticles using thiolated folate.
Article
Biochemistry & Molecular Biology
Liusheng Wu, Qi Liu, Xin Ruan, Xinyu Luan, Yanfeng Zhong, Jixian Liu, Jun Yan, Xiaoqiang Li
Summary: The RNA-binding protein RBM10 is highly expressed in lung adenocarcinoma and is involved in immune regulation, affecting immune cell numbers and tumor sensitivity. RBM10 inhibits the proliferation and invasion of lung adenocarcinoma cells through negative regulation and promotes apoptosis through immunomodulatory mechanisms.
Article
Chemistry, Physical
Ke-xin Tao, Li-yue Sun, De-hao Yu, Chen-yu Jia, Zhao-ge Juan, Yao Wang, Yan-xin Wang, Matt J. Kipper, Lin-jun Huang, Jian-guo Tang
Summary: The shortage of water resources has led to a need for water purification technologies, with membrane separation being the most commonly used method. This paper compares graphene oxide (GO) and MXene materials in terms of their structure, preparation methods, membrane performance, water treatment principles, and optimization strategies. The study finds that GO has more mature preparation methods, but MXene may have higher water flux. The performance of the membranes can be improved through chemical and physical modifications.
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)
