Article
Biochemistry & Molecular Biology
Baosheng Liu, Feng Li, Hongda Li, Shaohui Zhang, Jinghua Liu, Xiong He, Zijun Sun, Zhiqiang Yu, Yujin Zhang, Xiaoqi Huang, Fei Guo, Guofu Wang, Xiaobo Jia
Summary: Traditional graphite anode materials have low theoretical capacity and undergo easy lithium decomposition, while molybdenum disulfide is a promising anode material for advanced lithium-ion batteries due to its low cost, unique two-dimensional structure, and high theoretical capacity. However, poor conductivity and volume expansion during cycling hinder its practical application. In this study, monodisperse MoS2/graphite composites were prepared and investigated. The capacity of the composites increased with increasing MoS2 content, and reached the highest initial discharge capacity (832.70 mAh/g) at a MoS2:graphite ratio of 80%:20%. This simple and low-cost strategy has great potential for the development and production of advanced lithium-ion batteries.
Article
Chemistry, Multidisciplinary
Botao Yuan, Yuhan Feng, Xinghan Qiu, Yuhui He, Liwei Dong, Shijie Zhong, Jipeng Liu, Yifang Liang, Yuanpeng Liu, Haodong Xie, Zhezhi Liu, Jiecai Han, Weidong He
Summary: In this study, a core-shell structure is proposed to reinforce the polyvinylidene fluoride-hexafluoropropylene by encircling carbon nanotube (CNT) with adherent polydopamine. The CNT serves as an effective radiator for dispersing local heat sources. The composite separator avoids the violent growth of lithium dendrites caused by local heat accumulation, thus leading to high-rate and safe lithium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Bin He, Juanjuan Song, Huiqian Li, YiBo Li, Yawen Tang, Zhi Su, Qingli Hao
Summary: In this study, MoS2/N-doped carbon nanotubes (MoS2@N-C) were synthesized as anode materials for lithium-ion batteries (LIBs). The resulting hybrid architecture exhibited remarkable electrochemical performance, including high rate capacity and stable cyclic performance. The unique hollow structure of MoS2@N-C presents a new pathway for designing high-performance LIBs.
Article
Chemistry, Multidisciplinary
Tao Wang, Mingsheng Li, Lu Qi, Pengfei Jie, Wenlong Yang, Yuliang Li
Summary: Layered guest carbon materials, such as crystalline graphdiyne oxide (GDYO), can be inserted into the gallery of layered hosts like MoS2 to regulate their interlayer structure and electronic properties, resulting in improved performance in Li-ion batteries. The insertion of GDYO in MoS2 leads to enlarged interlayer distance, interfacial electric fields, and regulation of electrochemical products and current density distribution. This heterostructure exhibits high reversible capacity and cyclic stability, making it a promising candidate for high-performance energy storage and conversion systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yuansen Duan, Shaolin Du, Huachao Tao, Xuelin Yang
Summary: Tin has been considered as an ideal anode material for lithium ion batteries due to its high theoretical capacity, but its practical application is limited by poor cycling stability. Different structures, such as amorphous and crystalline, can significantly impact the electrochemical performance of Sn-based electrodes. In this study, it was found that the amorphous-Sn@C electrode exhibited higher capacity, better cycling stability, and rate capability compared to the crystalline-Sn@C electrode, attributing to enhanced strain regulation and defect sites. The results could serve as a reference for the development of high-capacity and long cycle life alloy-based anodes for lithium ion batteries.
Article
Chemistry, Multidisciplinary
Yangang Zhang, Zewei Wang, Yaohui Zhang, Kai Wang, Jiangchun Chen, Xuxu Guo, Jinlei Wu, Yuqi Xu, Jian Zhu, Hewei Zhao, Junfei Liang, Hua Wang
Summary: The use of 3D ultrathin SnO2 nanosheet/holey graphene composite frameworks in sodium-ion batteries shows great potential due to their high capacity. The encapsulation of ultrathin SnO2 nanosheets into densely packed graphene sheets addresses the challenges of SnO2, such as Na+ transport and poor conductivity, allowing for improved charge and ion transport.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Zeping Zhou, Feng Chen, Zhen Jiang, Tong Liu, Yanpei Fei, Tairong Kuang, Mingqiang Zhong, Xianhu Liu, Shuang Song
Summary: A method of growing layered MoS2 nanosheets on polyphosphazene microspheres was reported, showing uniform growth and high stable electrochemical performance. The obtained hollow carbon microspheres exhibited higher electrical conductivity and stronger structural stability, making them a promising MoS2-based anode material for Li-ion battery applications.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Lijing Han, Qiaohua Wei, Huimin Chen, Jing Tang, Mingdeng Wei
Summary: The GeO2/C nanocomposite exhibits excellent electrochemical performance as an anode in LIBs due to the enhanced electrical conductivity of GeO2 by carbon coating, the ability of the porous structure to buffer severe volume changes, and the capacity of GeO2 nanoparticles to shorten the diffusion distance of lithium ions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Huanting Xu, Chaokui Jiang, Wenbin Ye, Deping Xiong, Li Chen, Zuyong Feng, Kunhua Wen, Zhaoying Li, Miao He
Summary: The heterostructured arrangement of metal sulfide/oxide is crucial for the electrochemical characteristics of anode materials for lithium-ion batteries. In this study, a synthesized composite material was used, in which MoS2 and MoO2 were intercalated within PANI. The composite material showed effective mitigation of re-agglomeration and pulverization, as well as abundant active sites and shortened ion transport pathways. It exhibited exemplary cycling performance in both lithium-ion and sodium-ion batteries.
Article
Energy & Fuels
Chengli Yao, Jianglin Xu, Yuhua Shen, Anjian Xie
Summary: Carbon nanotubes growing on Ni2P@carbon were prepared using a phosphorization strategy, demonstrating excellent electrochemical performance. The porous carbon and CNTs improved conductivity, restricted volume and structural deformation, and provided more pathways for ion/electron movement.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Jiafeng Gao, Songlin Zuo, He Liu, Qiwen Jiang, Chenhao Wang, Huanhuan Yin, Ziqi Wang, Jie Wang
Summary: In this study, an interconnected hollow Si-C nanospheres/graphite composite was fabricated to improve the performance of Si anode. The composite anode exhibited high specific capacity, excellent rate performance, and cycling stability, attributed to the high electrical conductivity and buffering effect of graphite, as well as the good compatibility and uniform distribution of hollow Si-C nanospheres and graphite.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Shunzhang You, HuiTeng Tan, Licheng Wei, Wei Tan, Cheng Chao Li
Summary: Silicon-based materials have higher theoretical specific capacity in lithium-ion battery research, but their low conductivity and volume expansion pose challenges. Recent advancements in combining these materials with carbon have helped alleviate these issues. Future research will focus on designing and optimizing Si/C materials for efficient LIB anodes.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Botao Yuan, Kechun Wen, Dongjiang Chen, Yuanpeng Liu, Yunfa Dong, Chao Feng, Yupei Han, Jiecai Han, Yongqi Zhang, Chuan Xia, Andy (Xueliang) Sun, Weidong He
Summary: Composite separators play a crucial role in improving the thermal stability, mechanical strength, electrolyte uptake, and ionic conductivity of lithium ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Ceramics
Chunjuan Cui, Yanan Zhao, Zhicong Wang, Yue Liu, Chongyang Wu, Kai Zhang, Jian Wei
Summary: In this study, an S-sphere/C/MoS2 composite was prepared as a nanosulfur host, which improved the rate and cycling performance of Li-S batteries by enhancing the electroconductibility of sulfur.
CERAMICS INTERNATIONAL
(2022)
Article
Metallurgy & Metallurgical Engineering
Han-bing He, Zhen Liu, Chao-qun Peng, Jun Liu, Xiao-feng Wang, Jing Zeng
Summary: In this study, vertical MoS2 nanosheets were patterned onto graphene as nanoflowers through a two-step hydrothermal method. The interconnected network and intimate contact between MoS2 nanosheets and graphene by vertical channels enabled a high mechanical integrity of the electrode and cycling stability.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(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)