Article
Chemistry, Multidisciplinary
Muhammad Faizan, Sajjad Hussain, Mobinul Islam, Ji-Young Kim, Daseul Han, Jee-Hwan Bae, Dhanasekaran Vikraman, Basit Ali, Saleem Abbas, Hyun-Seok Kim, Aditya Narayan Singh, Jongwan Jung, Kyung-Wan Nam
Summary: In this study, a phase engineering strategy was explored to improve the electrochemical performance of transition metal sulfides (TMSs) as anode materials for lithium-ion batteries (LIBs). MoS2 nanostructures were synthesized using a one-pot hydrothermal approach. By simple calcination in the temperature range of 200-300 degrees C, MoS2 and MoO3 phases can be readily controlled. The optimized MoO3@MoS2 hybrid exhibited enhanced performance compared to pristine MoS2 and MoO3, attributed to the formation of a MoO3 passivation layer and reactive interfaces between the two phases.
Article
Chemistry, Multidisciplinary
Li Zeng, Hongxue Xi, Xingang Liu, Chuhong Zhang
Summary: Silicon/carbon nanofibers with a core-shell structure were successfully fabricated using a coaxial electrospinning technique, exhibiting excellent electrochemical performance, high electrical conductivity, and structural stability, showing great potential for advanced flexible energy storage.
Article
Nanoscience & Nanotechnology
Jasmin-Clara Buerger, Serin Lee, Jan Buettner, Sebastian Gutsch, Maximilian Kolhep, Anna Fischer, Frances M. M. Ross, Margit Zacharias
Summary: The SnO2/ZnO core/shell nanowires, as anode materials in LIBs, were studied using electrochemical analysis and electron microscopy to understand the relationship between structural changes and battery performance. The combination of SnO2 and ZnO showed higher storage capacities, but cycling caused significant structural changes and loss of mechanical integrity. This study provides insights into the stability limitations of SnO2/ZnO heterostructure LIB anodes and offers guidance for the design of next-generation anode materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Xinlong Li, Xinlin Huang, Yuanzhi Chen, Jie Mei, Wanjie Xu, Laisen Wang, Dong-Liang Peng
Summary: The study demonstrated the preparation of monodisperse spinel Li4Ti5O12 (LTO) particles coated with a carbon layer through a solid-phase sintering reaction, which can enhance the rate performances of batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Ke Tan, Zhaolin Tan, Sen Liu, Guoqiang Zhao, Yang Liu, Linrui Hou, Changzhou Yuan
Summary: In order to solve the problem of lithium polysulfide application, a synergistic strategy has been proposed, which improves the sulfur cathode by using heterogeneous and homogeneous catalysts. By constructing MIL-47 derived core-shell carbon nanorods (V3S4@C) as a host material and introducing optimized homogeneous catalyst Co(C5H5)2, the assembled Li-S batteries show outstanding performance and improve the prospect of commercial applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Zeyu Zhang, Shixiong Sun, Wen Zhang, Jia Xu, Xin Wang, Chun Fang, Qing Li, Jiantao Han
Summary: A watermelon-like core-buffer-shell Si/electrochemically exfoliated graphene/C (Si/EG/C) composite was prepared using ball milling and spray drying. The composite exhibited excellent electrochemical performance due to the presence of folds and voids in the graphene layer, which buffered the volume fluctuations of the silicon core and facilitated fast lithium ion transport. It has potential applications in the next generation of Li-ion batteries.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Lixin Li, Lei Wang, Chunhong Zhang
Summary: In this study, hierarchical MnMoO4@NC core-shell microspheres were synthesized as advanced electrode materials for both lithium-ion batteries (LIBs) and potassium-ion batteries (PIBs), showing improved performance due to the semi-hollow microsphere structure of MnMoO4 and the uniform nitrogen-doped carbon layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jiantong Sun, Cheng Liu, Huili Wang, Yu Cao, Xinpeng Han, Shaojie Zhang, Haipeng Wang, Yiming Zhang, Aibing Chen, Zhanxu Yang, Jie Sun
Summary: A phosphorus/carbon nanotube@polypyrrole (BP/CNT@PPy) composite with good performance was successfully synthesized using a simple method, showing excellent stability in the application of lithium-ion batteries.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Kaiyuan Liu, Xianhe Meng, Lijing Yan, Meiqiang Fan, Yechao Wu, Chao Li, Tingli Ma
Summary: The novel Sn/SnOx@NC composite shows high reversible capacity and excellent electrochemical performance as an anode material for lithium-ion batteries, primarily due to its unique porous N-doped carbon frameworks.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Pengwei Li, Shao-hua Luo, Qing Wang, Yahui Zhang, Xin Liu, Caihong Xu, Jinsheng Liang, Xinhui Duan
Summary: A novel process of preparing ZnMn2O4 as anode material for lithium-ion batteries from spent zinc-manganese batteries was developed in this study. Nano ZnMn2O4 was synthesized by a low-temperature hydrothermal method and exhibited high initial discharge specific capacity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Hui Huang, Lingjun Kong, Wei Shuang, Wei Xu, Jie He, Xian-He Bu
Summary: This study reports a carbon-encapsulated Fe2O3 electrode for the negative electrode of lithium-ion batteries, which exhibits high specific capacity and cycle stability. The influence of carbonization conditions on the electrode performance is also investigated.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Analytical
Wenzhen Zou, Ting Li, Zhendong Yao, Meiqiang Fan, Tingli Ma
Summary: This study designs and prepares a ZIF-8/SiOx/ZIF-8 composite with core-shell structure to overcome the low conductivity and volume expansion issues of silicon oxide in lithium-ion battery anode materials. The research shows that ZIF-8 not only regulates the particle size of SiOx, but also builds a three-dimensional network structure to provide buffer space, effectively preventing capacity loss caused by SiOx detachment from the anode surface.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Ying Zeng, Zhiyan He, Mingqi Li
Summary: A core-shell structured monodisperse carbon-rich SiO1.31C1.46H0.81 submicron ceramic sphere with a unique microstructure and carbon content is synthesized. It exhibits higher reversible capacity and rate performance as an anode material for lithium-ion batteries compared to the SiOC-based ceramic materials reported previously in literature.
Article
Chemistry, Multidisciplinary
Zhiya Lin, Xueqing Tan, Yanping Lin, Jianping Lin, Wenyu Yang, Zhiqiang Huang, Shaoming Ying, Xiaohui Huang
Summary: This study reports a hierarchically nanoarchitectured anode material with a yolk-shell structure composed of N,P co-doped carbon as the shell and CoP nanowires as the yolk. The electrode demonstrates excellent cycling stability and high reversible capacity for sodium storage.
Article
Materials Science, Multidisciplinary
Bingfeng Cui, Yu Gao, Xiaopeng Han, Wenbin Hu
Summary: Sn coating loaded on copper foil is used to guide the uniform zinc deposition and improve the performance of zinc metal batteries.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)