Article
Materials Science, Ceramics
Kangkang Yuan, Hui Li, Xiaotong Jin, Chengshun Li, Xinqiang Wang, Duanxi Wu, Guanghui Zhang
Summary: Ceramic fibrous membranes have excellent potential in gas solid filtration and high thermal insulation. However, achieving flexible ceramic fibrous membranes that remain stable at high temperatures is still a challenge. In this study, a CaZrO3 fibrous membrane with excellent stability at 1200 ? and good flexibility at 1100 ? was successfully achieved using a combination of sol-gel and electrospinning methods. The CaZrO3 fibrous membrane showed promising thermal stability and alkaline resistance, making it a potential candidate for high-temperature applications.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Ping Li, Liuyong Zhao, Song Wang, Xiaohui Zhang, Huaiyuan Jiang, Ruizhen Liu, Nengchuang Zhao, Jian Cheng, Caili Xu, He Zhao, Renliang Lyu
Summary: This study successfully synthesized rare-earth ions doped upconversion luminescent microparticles using the impinging stream method, optimizing the conditions to achieve high yield and good monodispersity of the particles.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yuchao Shi, Meijuan Yuan, Jing Li, Fen Li, Wenhao Cui, Xuechen Jiao, Yaru Peng, Yuxin Huang, Li Chen
Summary: Temperature-sensing media based on upconversion materials, specifically MSc2O4:Er3+/Yb3+ nanocrystals, were prepared using a hydrothermal method. The red upconversion luminescence intensity of the CaSc2O4:Er3+/Yb3+ sample was significantly enhanced compared to other samples. By adjusting the presence of alkali ions, the upconversion luminescence intensities of CaSc2O4:Er3+/Yb3+ and SrSc2O4:Er3+/Yb3+ samples were further improved, especially in the presence of Li+ ions. These materials exhibited excellent temperature-sensing behaviors with high sensitivity and relative sensitivity.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jingbo Yu, Lili Hu, Jinjun Ren
Summary: The study found that La3+ ions have promotion and suppression effects on the crystallization of PbF2, with a stronger attraction ability compared to Pb2+ ions. Intensive upconversion visible luminescence was observed in rare earth ion-doped oxyfluoride glasses, with most Er3+ ions dissolved in the LaF3 crystal.
INORGANIC CHEMISTRY
(2021)
Review
Chemistry, Inorganic & Nuclear
Daniele Paderni, Luca Giorgi, Vieri Fusi, Mauro Formica, Gianluca Ambrosi, Mauro Micheloni
Summary: Rare earth elements (REEs) are a group of elements playing critical roles in modern applications, with scientists showing strong interests in their new applications. However, the development of chemical sensors suitable for selective sensing of REE ions remains a challenging task due to their complicated coordination properties.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Chemistry, Multidisciplinary
Thais K. L. Rezende, Helliomar P. P. Barbosa, Luiz F. F. dos Santos, Karmel de O. Lima, Patricia Alves de Matos, Tayana M. M. Tsubone, Rogeria R. Goncalves, Jefferson L. L. Ferrari
Summary: Light-based therapies and diagnoses, such as photodynamic therapy (PDT), have been widely used in various fields of medicine. PDT requires a light source and a light-sensitive compound to detect and destroy cancer cells. However, one of the challenges is the depth of light penetration into biological tissues.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Chengyu Zhuo, Zeyu Lyu, Dashuai Sun, Sida Shen, Taixing Tan, Shuai Wei, Zhijun Li, Pengcheng Luo, Hongpeng You
Summary: Na2MgScF7 (NMSF) was synthesized for the first time through hydrothermal and high-temperature solid-state reactions. The NMSF crystalizes in the space group Imma, with the cell parameters a = 10.40860(18), b = 7.32804(12), c = 7.52879(11) angstrom, alpha = beta = gamma = 90 degrees, and V = 574.256(24) angstrom(3). Doping with Tb3+ or Eu3+ ions allows for yellow-green or red emission in NMSF-based phosphors, respectively. In addition, upconversion emission can be achieved by doping with Yb3+-Er3+, Yb3+-Tm3+, Yb3+-Ho3+, or Er3+. The synthesized NMSF:Er3+ phosphor exhibits green upconversion emission at 980 nm excitation and red emission at 1532 nm excitation.
DALTON TRANSACTIONS
(2023)
Article
Nanoscience & Nanotechnology
Chen Li, Xiyan Li, Xiaowang Liu
Summary: This study reports the tuning of optical attributes of lanthanide-doped nanoparticles through simultaneous binary cation exchange, enabling both upconversion and downshifting emissions. The use of Tb3+ ions also helps maintain the integrity of the nanoparticles.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Ekta Rai, Abhishek Roy, Anita Rai, Vijay Janardhan Fulari, S. B. Rai
Summary: The structural and optical properties of Eu3+, Tb3+ doped and Eu3+/Tb3+ codoped LaVO4 were investigated. It was found that the doping of Eu3+, Tb3+ ions led to changes in the crystallite size and morphology of LaVO4. UV-Vis absorption and FTIR spectra showed distinct fluorescence characteristics in the doped samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Engineering, Chemical
Yiran Wang, Wen Zhang, Xianjie Zeng, Tao Deng, Jianyou Wang
Summary: Alkali metal and alkaline-earth metal elements have similar properties and their separation is crucial for applications in seawater desalination, resource recovery, and energy storage, key for sustainable development. Membrane technologies, with their eco-friendly and energy-efficient advantages, have been extensively studied in this area and attracted significant attention.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Huajun Yang, Fang Peng, Danielle E. Schier, Stipe A. Markotic, Xiang Zhao, Anh N. Hong, Yanxiang Wang, Pingyun Feng, Xianhui Bu
Summary: Selective crystallization into metal-organic frameworks (MOFs) presents new opportunities for rare-earth separation. The development of MOF platforms with high selectivity toward target ions, such as the CPM-66 platform, shows exceptional ion-size selectivity during crystallization. This work provides insights into preparing low-coordinate MOFs for efficient lanthanide separation and other applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Electrical & Electronic
Wan Ying Xie, Peng Zhang, Hong Fang Lai, Yin Ling Lai, Zian Cheak Tiu
Summary: This work practically demonstrates the use of rare-earth composites as optical upconversion temperature dual mode sensing. By aliovalent doping, the upconversion luminescence of NaGdF4:Yb3+/Er3+/Zn2+ phosphors is enhanced, and the temperature sensing behaviors based on luminescence intensity and lifetime are recorded.
ELECTRONICS LETTERS
(2022)
Article
Materials Science, Ceramics
Mingyue Wei, Jie Xu, Runwu Yang, Jiatong Zhu, Xuanyu Meng, Jinlong Yang, Feng Gao
Summary: This work used sol-gel and electrospinning techniques to prepare ultra-fine rare-earth-zirconate high-entropy ceramic (HEC) fibers, and characterized their microscopic morphology and decomposition process. The results showed that HEC fibers had excellent thermal insulation properties and maintained a continuous microstructure.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Mengjia Zhang, Changchun Ding, Bin Duan, Yuxiang Wu, Yongqiang Li, Jin Wei, Fengyi Wang, Junshan Hu
Summary: This study achieved a significant enhancement in luminescence intensity of the WO3: Yb3+, Ho3+ phosphor through non-equivalence substitution of Bi3+ ions. The morphology of phosphors and valence state of elements were characterized by SEM and XPS techniques. In the research of upconversion luminescence, the Yb3+/Ho3+/Bi3+ doped WO3 phosphor obtained a significant increase in emission intensity.
Article
Nanoscience & Nanotechnology
Rashmi Joshi, Sourav Patra, Manas Srivastava, Bheeshma Pratap Singh, Avik Chakraborty, Sandeep Balu Shelar, Rubel Chakravarty, Sudipta Chakraborty, Raghumani Singh Ningthoujam
Summary: Nearly monodispersed NaGdF4/Ho-Yb upconversion nanoparticles with biocompatible mesoporous silica coating were synthesized. These nanoparticles exhibit red and green bands in the visible range upon excitation at different wavelengths of light. The potential applications of these nanoparticles as drug carriers and therapeutic radionuclide carriers were demonstrated.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
R. V. Yadav, R. S. Yadav, A. Bahadur, S. B. Rai
Article
Chemistry, Inorganic & Nuclear
A. Bahadur, R. S. Yadav, R. V. Yadav, S. B. Rai
JOURNAL OF SOLID STATE CHEMISTRY
(2017)
Article
Spectroscopy
Ajay Kumar Choudhary, A. Dwivedi, A. Bahadur, S. B. Rai
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2017)
Article
Materials Science, Ceramics
A. K. Choudhary, A. Dwivedi, A. Bahadur, T. P. Yadav, S. B. Rai
CERAMICS INTERNATIONAL
(2018)
Article
Optics
Akanksha Maurya, A. Bahadur, S. B. Rai
JOURNAL OF LUMINESCENCE
(2018)
Article
Chemistry, Multidisciplinary
R. Yadav, A. K. Singh, A. Bahadur, T. P. Yadav, R. S. Yadav, S. B. Rai
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2018)
Article
Chemistry, Multidisciplinary
A. Maurya, A. Bahadur, A. Dwivedi, A. K. Choudhary, T. P. Yadav, P. K. Vishwakarma, S. B. Rai
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2018)
Article
Materials Science, Multidisciplinary
R. Yadav, R. S. Yadav, A. K. Singh, A. Bahadur, T. P. Yadav, S. B. Rai
MATERIALS CHEMISTRY AND PHYSICS
(2018)
Article
Optics
Pushpa Kumari, Y. Dwivedi, Amresh Bahadur
Article
Chemistry, Analytical
A. K. Choudhary, S. K. Singh, A. Dwivedi, A. Bahadur, S. B. Rai
METHODS AND APPLICATIONS IN FLUORESCENCE
(2018)
Article
Optics
A. K. Choudhary, A. Dwivedi, A. Bahadur, S. B. Rai
JOURNAL OF LUMINESCENCE
(2019)
Article
Materials Science, Multidisciplinary
P. K. Vishwakarma, A. Bahadur, Akanksha Maurya, S. B. Rai
MATERIALS RESEARCH BULLETIN
(2019)
Article
Chemistry, Multidisciplinary
P. K. Vishwakarma, P. K. Shahi, S. B. Rai, A. Bahadur
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2020)
Article
Chemistry, Multidisciplinary
Monika, Ram Sagar Yadav, Amresh Bahadur, Shyam Bahadur Rai
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)