Article
Engineering, Environmental
Zhiwei Yang, Lang Qiu, Mengke Zhang, Yanjun Zhong, Benhe Zhong, Yang Song, Gongke Wang, Yuxia Liu, Zhenguo Wu, Xiaodong Guo
Summary: This study prepared an in-situ doped Si/carbon anode material using SiO2 and CO2 as raw materials, achieving nanosizing of silicon and construction of a 3D carbon network, which improved electrical conductivity and cycling performance of the battery. The simple preparation method provides a new idea for modifying silicon-based anode materials, offering valuable insights for further research on carbon doping.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Green & Sustainable Science & Technology
Yuan Tao, Yuan Tian, Yongling An, Chuanliang Wei, Yuan Li, Qikun Zhang, Jinkui Feng
Summary: The study synthesized uniform porous Si@C using a green vacuum distillation method, which improved electrical conductivity and ability to accommodate volume changes of the silicon anode, while maintaining stable battery performance. Due to its unique structure, pSi@C exhibited superior rate capability and stable cycling performance.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Jian Yu, Chaoran Zhang, Weidong Wu, Yuankun Cai, Yafei Zhang
Summary: Silicon has garnered attention for its high specific capacity and abundant reserves, but its volumetric changes during charging and discharging processes have hindered industrial utilization. This study introduces a novel hybrid anode material, Si@void/CNF, designed with a nodes-connected structure that provides both a conductive reticulation for silicon nanoparticles and addresses volume variation. By adjusting the mass ratio of silicon to PMMA, an optimal structure was achieved, demonstrating excellent electrochemical performance with high specific capacity and cycling stability. The electrospun structure of nodes-connected Si@void/CNF offers a promising method for fabricating advanced silicon-based anode materials.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Xu Liu, Huitian Liu, Yuhao Cao, Xiaochen Wu, Zhongqiang Shan
Summary: Chemical-expanded graphite (CEG) is used as a carbon matrix to form Si@CEG/C composites with an embedded structure, effectively addressing the challenges posed by volume change and electrochemical interface of Si anode. The embedded structure enables better cycling performance and rate capability for Si@CEG/C.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Changsheng Song, Baoxun Zhao, Siyu Chen, Jinyang Ma, Hongbin Du
Summary: A new method for preparing silicon-nickel-carbon composites with high mechanical strength and ion diffusivity has been developed, improving the performance of lithium-ion batteries. The composites show stable performance during long-term cycling and exhibit better capacity retention compared to conventional materials.
Article
Chemistry, Physical
Dong Sui, Min Yao, Linqi Si, Kun Yan, Jingge Shi, Jianshe Wang, Charles Chunbao Xu, Yongsheng Zhang
Summary: In this study, advanced SiO2 anodes were prepared by coating hollow SiO2 nanotubes (SNTs) with lignin or phenolated and depolymerized lignin furfural resin (PDLF)-derived carbon. The novel structure of SNTs effectively promotes both Li+ and electron transport, increases active sites for Li+ insertion and accommodates the volume change. SNTs@C-PDLF demonstrates higher specific capacity (661 mAh g(-1) at 100 mA g(-1)), superior rate capability (262 mAh g(-1) at 3000 mA g(-1)), and better cycling stability (549 mAh g(-1) at 1000 mA g(-1) after 800 cycles) compared to SNTs@C-lignin and pristine SNTs.
Article
Engineering, Chemical
Fangfang Zhao, Min Zhao, Yanru Dong, Lei Ma, Yu Zhang, Sulin Niu, Liangming Wei
Summary: The study presents the development of a silicon-graphite-carbon ternary composite using inexpensive micron-sized silicon, showcasing its potential for high rates and good capacity stability, and achieving significant electrochemical performance.
Article
Chemistry, Physical
Zhiguo Wang, Biao Zheng, Hui Liu, Chun Zhang, Fangfang Wu, Huayun Luo, Peng Yu
Summary: NPSi@C composites were successfully synthesized via one-step magnesiothermic co-reduction using rice husks and CO2, showing superior lithium storage performance and electrical conductivity. The nanoporous silicon structure accommodates activated silicon and facilitates lithium ion transfer, while the graphitized carbon layers enhance the electrochemical properties of the composites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yanchen Ma, Aoming Huang, Yan Li, Hongcheng Jiang, Wen Zhang, Li Zhang, Linlin Li, Shengjie Peng
Summary: The study introduces the preparation of Si/N-doped carbon composite anode materials using recycled Si waste from the photovoltaic industry. The coating of Si micro/nano-plates with N-doped carbon facilitates electron transfer, inhibits volume expansion, and enhances the stability of the composites. This approach shows promising results in terms of high discharge capacity and cycling performance for the next generation of LIBs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jae-Ik Hyun, Kyeongho Kong, Songgue Choi, Minyoung Na, Kwang Bum Kim, Won Tae Kim, Do Hyang Kim
Summary: A scalable method was developed to synthesize nanoporous Si using Al-Si-Ni amorphous precursor alloys, with controlled pore and ligament sizes. The Ni-coated nanoporous Si showed high initial coulombic efficiency and high reversible capacity after 500 cycles, indicating its potential as a novel strategy for next-generation LIBs.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Ikramul Hasan Sohel, Tarik Ozturk, Umut Aydemir, Naeimeh Sadat Peighambardoust, Ozgur Duygulu, Isil Isik-Gulsac, Mustafa Altun, Mehmet Nurullah Ates
Summary: This study presents a simple method to enhance the stability of electroplated Silicon (Si) electrodes through heat treatment. The cycling stability of the Si anode improves significantly with increasing heat treatment temperature. The Si electrode heat treated at 400 degrees C maintains 77% capacity even after exposure to air for one week.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Yaodong Ma, Pengqian Guo, Mengting Liu, Pu Cheng, Tianyao Zhang, Jiande Liu, Dequan Liu, Deyan He
Summary: Porous carbon coated silicon nanoparticles were prepared as anode materials for lithium-ion batteries to suppress the volume expansion effect of silicon and improve the infiltration of electrolyte and the diffusion of lithium ions. The mass ratio of the anode materials effectively controlled the specific capacities and reduced production cost.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Qiuyan Li, Ran Yi, Yaobin Xu, Xia Cao, Chongmin Wang, Wu Xu, Ji-Guang Zhang
Summary: This study focuses on the design and failure analysis of a silicon (Si) anode for lithium-ion batteries (LIBs). The volumetric energy density of the Si anode depends heavily on factors such as Si/C loading, anode calendering density, first-cycle coulombic efficiency, and anode capacity density. Stable Si/C electrode structure is crucial for long-term cycling, and the degree of prelithiation needs to be balanced with cycle life.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Wei He, Hang Luo, Peng Jing, Hongmei Wang, Changhaoyue Xu, Hao Wu, Qian Wang, Yun Zhang
Summary: In this study, a grape stem-derived porous carbon framework (PCF) was used as the matrix for silicon (Si) to address the issues of electrochemical activity and cycling stability. The PCF provided sufficient space for volumetric expansion of Si and abundant active sites, and its porous structure and high conductivity facilitated electrolyte penetration and electron transfer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Jongha Hwang, Mincheol Jung, Jin-Ju Park, Eun-Kyung Kim, Gunoh Lee, Kyung Jin Lee, Jae-Hak Choi, Woo-Jin Song
Summary: Silicon-based electrodes are considered promising anodes for high-energy-density lithium-ion batteries due to their advantages, but the large volume change and low electrical conductivity during charge-discharge process are critical issues. In this study, the researchers solved the problem of volume expansion by applying a carbon coating method using low-cost phenolic resin, resulting in high-performance lithium-ion batteries.
Review
Chemistry, Multidisciplinary
Lin Zhang, Xingyu Li, Xuanhui Qu, Mingli Qin, Zhongyou Que, Zichen Wei, Chenguang Guo, Xin Lu, Yanhao Dong
Summary: Ultrafine-grained (UFG) refractory metals are promising materials for various applications, but achieving full density while maintaining a fine microstructure through sintering remains challenging. This article provides an overview of sintering issues, microstructural design rules, and powder metallurgy practices for UFG and nanocrystalline refractory metals. It also reviews previous efforts, including the use of fine/nanopowders and field-assisted sintering techniques, and highlights the recent technological breakthrough of pressureless two-step sintering for producing dense UFG refractory metals. Additionally, the progress of powder metallurgy in specific materials systems, such as elementary metals and refractory alloys, is discussed, and future developments towards UFG and nanocrystalline refractory metals with improved properties are outlined.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Kaixuan Cui, Ping Li, Wang Zhao, Chunrong Liu, Qi Wan, Shengwei Li, Xuanhui Qu
Summary: A uniform, dense, and low-oxidized W coating prepared by plasma spraying effectively prevents the corrosion of the Sb-Sn cathode on its current collector and improves the cycle stability of Li||Sb-Sn liquid metal batteries. For the first time, micro-CT nondestructive inspection is applied in the field of LMBs, obtaining the corrosion micromorphology and composition evolution of the SS304 matrix and Sb-Sn cathode with or without the plasma-sprayed W coating. The research provides a universal autonomous LMB device for nondestructive inspection and fills the knowledge gap in LMB detection technology by directly visualizing the inner critical positions in three dimensions.
CHINESE CHEMICAL LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Jingyang Nan, Xinbo He, Zhang Tao, Xuanhui Qu, Haiqing Yin
Summary: This study provides a homogenization method to investigate the impact of interfacial characteristics on the thermal conductivity of GF/Cu composites. Finite element homogenization method is used to establish representative volume element models of material microstructure and interfacial layers, taking into account the distribution morphology and thermophysical properties of interface compositions. The results indicate that the thermal conductivity of GF/Cu composites is significantly influenced by factors such as graphite sizes, graphite volume contents, interface contents, pore shapes, the relative density of interfacial layers, and whether the interface component is continuous.
KOVOVE MATERIALY-METALLIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Kaixuan Cui, Ping Li, Wang Zhao, Shengwei Li, Chunrong Liu, Xuanhui Qu
Summary: This study systematically investigates the effects of different operating temperatures and charge-discharge regimes on the performance of Li||Sb-Bi-Sn liquid metal batteries. The optimal operating temperature is found to be 500 degrees C, and the batteries show excellent rate capability and anti-pulse interference ability. The calculated energy density of the batteries is 265 Wh kg-1, with electrode costs of only 58.62 $ kWh-1. Overall, this work paves a new direction for assessing high-performance liquid metal batteries for practical applications.
Article
Materials Science, Multidisciplinary
Chunrong Liu, Kaixuan Cui, Wang Zhao, Fanxin Lin, Yong Liu, Xuanhui Qu, Ping Li
Summary: A hydrogen-oxygen combination catalyst based on a ZrVFe hydrogen storage alloy loaded with Pd has been designed, which shows excellent hydrogen elimination capability in various conditions. The activity of the catalyst depends on the Pd loadings, and the 2 wt% Pd/ZrVFe catalyst exhibits rapid hydrogen-oxygen elimination reaction and high elimination efficiency. The catalyst is also resistant to irradiation, aerosol poisoning, and iodine vapor poisoning, providing a new approach to address hydrogen safety issues.
Article
Chemistry, Physical
Tianhao Wang, Shengwei Li, Xinger Weng, Lei Gao, Yu Yan, Ning Zhang, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: In this study, hierarchically porous V2O5 nanosheets vertically grown on carbon cloth were prepared, providing additional ion-diffusion channels and abundant active sites. The V2O5/C electrode exhibited exceptional high-rate capability and ultralong cycling durability in rechargeable aqueous zinc-based batteries. Moreover, the quasi-solid-state wearable zinc batteries employing the porous V2O5/C cathode demonstrated respectable performance even under severe deformations and low temperatures.
ADVANCED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jingyang Nan, Xinbo He, Xuanhui Qu, Jiashu Wei, Zijian Zhang
Summary: This paper examines the wetting behavior of copper droplet on a graphite substrate using molecular dynamics simulation. It finds that the wetting process is influenced by Ar pressure, with hindered wetting at low temperatures and promoted wetting at high temperatures. However, beyond a certain Ar pressure, further increase does not improve wetting, and Ar pressure increases the potential of mean force between the copper droplet and the graphite substrate, making detachment more difficult.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Yao Wang, Xudong Zhao, Junteng Jin, Qiuyu Shen, Yang Hu, Xiaobai Song, Han Li, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: This study unravels the reductive coupling mechanism (RCM) in a novel P2-Na0.8Cu0.22Li0.08Mn0.67O2 cathode, which boosts the reversibility and kinetics of anionic redox reactions. The formation of strong covalent Cu-(O-O) bonding effectively suppresses excessive oxygen oxidation and irreversible cation migration, resulting in a cathode with remarkable rate capability and long-term cycling stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Wei Zheng, Guangqiang Zhang, Qian Zhang, Haichen Yu, Zongzhen Li, Mingyu Gu, Su Song, Shaoxiong Zhou, Xuanhui Qu
Summary: This research studied the effects of normal annealing (NA) and magnetic field annealing (FA) on the soft magnetic properties and microstructure of Fe82Si2B13P1C3 amorphous alloy iron cores. Different methods of magnetic field application were used during the annealing process. The results showed that Fe82Si2B13P1C3 had lower loss and higher coercivity than commercially produced Fe80Si9B11. The annealing process also led to the formation of wide strip domains with low resistance and easy magnetization in the Fe82Si2B13P1C3 iron cores.
Review
Chemistry, Physical
Guodong Miao, Ping Li, Chunrong Liu, Yong Liu, He Zhang, Fanxin Lin, Xuanhui Qu
Summary: Metal hydride (MH) hydrogen storage systems are being considered as an efficient and safe method for hydrogen storage. However, the low thermal conductivity of a metal hydride bed (MHB) poses a challenge in practical applications, requiring the adoption of efficient thermal management approaches. This paper reviews the development of MHB thermal management, including enhancing heat transfer through MHR structure modifications, improving the effective thermal conductivity of MHB through thermal conductivity enhancers, and strengthening heat transformation using phase change materials (PCM). The impact of various thermal management measures on heat and mass transfer is evaluated, with the benefits and drawbacks of different MHR structures summarized.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Multidisciplinary
Chen Chen, Tianhao Wang, Xudong Zhao, Aiduo Wu, Shengwei Li, Ning Zhang, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: The study demonstrates the fabrication of OH-termination-rich V₂CTx material with interlayer K+-pillars (alk-V₂CTx) using a one-step alkalization method. The alk-V₂CTx cathode exhibits excellent reversibility and rapid Li+/Zn2+ co-insertion/extraction electrochemistry, along with superior rate performance and exceptional cycling life. The study also investigates the hybrid-ion storage mechanisms and presents flexible quasi-solid-state rechargeable Zn batteries with inspiring energy output even under severe deformation conditions and low temperatures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yu Pan, Yucheng Yang, Qingjun Zhou, Xuanhui Qu, Peng Cao, Xin Lu
Summary: By adding a minor CaC2 oxygen-scavenger, the excessive interstitial oxygen contamination in titanium and its alloys can be effectively solved, resulting in high strength and superior ductility. This novel method offers a cost-effective way to develop high-performance titanium materials.
Article
Materials Science, Multidisciplinary
Shuyi Xie, Bin Xu, Cong Zhang, Dil Faraz Khan, Xue Jiang, Ruijie Zhang, Yongwei Wang, Haiqing Yin, Xuanhui Qu
Summary: This study investigates the effects of doping 7 refractory elements (V, Cr, Zr, Nb, Mo, Hf, and Ta) on the site preference, elastic properties, and bonding effect of Ni2TiAl. The results show that V and Cr can effectively improve the bonding stability and strength of Ni2TiAl.
COMPUTATIONAL MATERIALS SCIENCE
(2024)
Article
Chemistry, Physical
Zhihui Ma, Jie Shi, Di Wu, Dishuang Chen, Shuai Shang, Xuanhui Qu, Ping Li
Summary: The sulfide-based solid electrolyte Li6+xSb1-xSnxS5I (LSSSI-x) is proposed as a solution to the air-sensitivity and Li-incompatibility issues in all-solid-state lithium batteries. The LSSSI-0.4 electrolyte exhibits high ionic conductivity, good moisture stability, and enables the fabrication of high-performance batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Chang Liu, Jianxiong Liang, Changjun Wang, Gang Chen, Xuanhui Qu, Yu Liu, Zhenbao Liu, Mengxing Zhang
Summary: In this study, PH13-8Mo stainless steel parts doped with cerium were fabricated and compared with undoped parts. The doping of cerium improved the microstructure, phase constituents, and tensile properties of the stainless steel. The results showed that doping with cerium enhanced the mechanical stability of austenite, improved the sphericity of oxide inclusion, and increased the ultimate tensile strength and fracture elongation of the PH13-8Mo parts. The improved strength and ductility were attributed to the strengthening effects of nanoscale precipitation and grain refining, as well as the enhanced inclusion sphericity and coherency between the inclusion and matrix.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
