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Molecular template derived ultrathin N-doped carbon layer on cobalt selenide nanobelts for durable and rapid sodium storage

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Nano Research 2024年第9期17卷 8145-8154页

作者： Chuanliang Wei Baojuan Xi Kangdong Tian Xinlu Zhang Quanyan Man keyan Bao Wutao Mao Jinkui Feng Shenglin Xiong Key Laboratory of the Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringSchool of Materials Science and EngineeringShandong UniversityJinan 250100China Resource Environment and Clean Energy Laboratory School of Chemical and Environmental EngineeringJiangsu University of TechnologyChangzhou 213001China

Sodium-ion batteries(SIBs)are an attractive battery system because of similar characteristics to lithium-ion batteries(LIBs)and large Na element ***,exploring stable,high-capacity and high-rate anode materials for SIBs is still challenging ***,diethylenetriamine(DETA)molecular template derived ultrathin N-doped carbon(NC)layer decorated CoSe_(2)nanobelts(CoSe_(2)/NC)are prepared by solvothermal reaction followed by calcination *** CoSe_(2)/NC exhibits large potential as an anode for *** and theoretical calculations reveal that the in situ formed conductive ultrathin NC layer can not only relieve the volume change of CoSe_(2)but also accelerate electron and ion *** addition,the nanobelt structure of CoSe_(2)/NC with abundant exposed active sites can obviously accelerate the electrochemical *** the synergistic effect of special nanobelt structure and NC layer,the rate as well as cycling performances of CoSe_(2)/NC are obviously improved.A superior capacity retention of 94.8%is achieved at 2 A·g^(-1)after 2000 *** using Na3V2(PO4)3 cathodes,the pouch full batteries can work steadily at 0.5 C,verifying the application ***_(2)/NC anodes also exhibit impressive performances in LIBs and potassium-ion batteries(PIBs).

关键词： CoSe2 nanobelts ultrathin N-doped carbon layer sodium-ion batteries anode high rate

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Evolution of hollow nanosphere to microtube in the self-assembly of chiral dansyl derivatives and inversed circularly polarized luminescence

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Chinese Chemical Letters 2024年第7期35卷 285-290页

作者： Sifan Du Yuan Wang Fulin Wang Tianyu Wang Li Zhang Minghua Liu Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials Department of Chemistry and Chemical EngineeringSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083China National Laboratory for Molecular Science(BNLMS) CAS Key Laboratory of ColloidInterface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China

Here,we designed asymmetric(m DS)and symmetrical(d DS)chiral V-shaped molecules by linking one or two dansyl groups to trans-1,2-cyclohexane diamine and investigated the solvent-regulated structural transformation and inversed circularly polarized luminescence(CPL)in the *** increasing water volume fraction(fw)in the mixed solvent of water/acetonitrile,asymmetric mDS selfassembled into hollow nanospheres and microtubes,while solid nanospheres and solid microplates were corresponding to symmetric d *** this transformation process,the emission of m DS and d DS was changed from yellow-green to blue and cyan color,which was ascribed to twisted intramolecular charge transfer(TICT)and locally excited(LE)fluorescence of V-shaped DS *** conformation of N,Ndimethyl groups with respect to naphthalene ring also led to the transformation of *** tubular and platelike structures had stronger and reversed CPL signals in comparison with spheroidal *** chiral information of DS assembly could be effective transferred to achiral Nile red via co-assembly strategy,which endowed Nile red exhibiting inversed induced CPL signal regulated by water *** work provides a method for achieving a variety of self-assembled structures with adjustable chiroptical properties.

关键词： CPL inversion Hollow structure Self-assembly Dansyl Chirality transfer

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An epitaxial surface heterostructure anchoring approach for high-performance Ni-rich layered cathodes

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Journal of Energy Chemistry 2025年第6期105卷 158-169页

作者： Weili Sun Qingqing Zhang Xiao-Guang Sun Cheng Li Yongsheng Huang Wenyu Mu Junbin Tan Jianlin Li Kai Liu Shijian Zheng Sheng Dai Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and Engineering Hebei University of Technology Chemical Sciences Division Oak Ridge National Laboratory Neutron Scattering Division Oak Ridge National Laboratory Applied Materials Division Argonne National Laboratory School of Materials Science and Engineering Tianjin University of Technology Department of Chemistry University of Tennessee

Nickel-rich（Ni≥90%） layered oxides materials have emerged as a promising candidate for nextgeneration high-energy-density lithium-ion batteries（LIBs）.However,their widespread application is hindered by structural fatigue and lattice oxygen *** this work,an epitaxial surface rock-salt nanolayer is successfully developed on the LiNi0.9Co0.1O2sub-surface via heteroatom anchoring utilizing high-valence element molybdenum *** in-situ formed conformal buffer phase with a thickness of 1.2 nm effectively suppresses the continuous interphase side-reactions,and thus maintains the excellent structure integrity at high ***,theoretical calculations indicate that the lattice oxygen reversibility in the anion framework of the optimized sample is obviously enhanced due to the higher content of O 2p states near the Fermi level than that of the pristine ***,the stronger Mo-O bond further reduces cell volume alteration,which improves the bulk structure stability of modified ***,the detailed charge compensation mechanism suggests that the average oxidation state of Ni is reduced,which induces more active Li+participating in the redox reactions,boosting the cell energy *** a result,the uniquely designed cathode materials exhibit an extraordinary discharge capacity of 245.4 mAh g-1at 0.1 C,remarkable rate performance of 169.3 mAh g-1at 10 C at4.5 V,and a high capacity retention of 70.5% after 1000 cycles in full cells at a high cut-off voltage of 4.4 *** strategy provides an valuable insight into constructing distinctive heterostructure on highperformance Ni-rich layered cathodes for LIBs.

关键词： Heteroatom anchoring Lattice oxygen reversibility Lithium-ion batteries Ni-rich layered oxides Rock-salt nanolayer

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Nanotandem-rocket releases messenger to disrupt metabolic communication for antitumor immunotherapy

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Nano Research 2023年第5期16卷 7095-7107页

作者： Henan Zhao Yuyan Zou Wei Wang Yihong Liu Yuqing Li Bowen Jin Jianghua Li Wansong Chen You-Nian Liu Hunan Provincial Key Laboratory of Micro&Nano Materials Interface Science College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China

Metabolic communication between intracellular metabolism and extracellular microenvironment is responsible for celluar metabolism balance and cell *** cells adaptively regulate metabolic communication to promote hyperproliferation and ***,nanotandem-rockets(hyaluronic acid modified Mg_(5)(CO_(3))_(4)(OH)_(2)(H-MCH))are developed for stepwisely disrupting metabolic communication to activate antitumor *** from the nanotandem-rocket structure,H-MCH nanoplates successively disrupt the extracellular metabolite transport and intracellular carbohydrate *** simulation together with metabolomic analysis discloses the underlying mechanism of H-MCH *** extra-/intra-celluar interruption of metabolic communication provides H-MCH nanotandem-rockets with high efficiency in tumor ***,the interference of metabolic communication reverses immunosuppression to facilitate the intratumoral infiltration of immune *** H-MCH nanotandem-rockets as an in situ vaccine,systemic antitumor immunity and immune memory effect are fabricated to eliminate tumor metastasis and *** from traditional metabolic poisons(e.g.,arsenic or cyanide),the structure of nanotandem-rockets endows chemical messengers with selective regulation to tumor metabolic communication,but with minimal influence to normal *** nanotandem-rockets provide a powerful paltform to augment the regulating actitiy of chemical messengers in metabolic *** expect our discovery of disrupting tumor metabolic communication with chemical messengers will be a powerful strategy for tumor therapy with vast practical applications.

关键词： nanotandem-rockets metabolic communication messenger carbohydrate metabolism antitumor immunotherapy

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Mn/S diatomic sites in C_(3)N_(4) to enhance O_(2) activation for photocatalytic elimination of emerging pollutants

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Journal of Environmental sciences 2025年第3期149卷 512-523页

作者： Chengji Sui Zixuan Nie Xiaobin Xie Yifeng Wang Lingshuai Kong Shou-Qing Ni Jinhua Zhan Key Laboratory for Colloid&Interface Chemistry of Education Ministry School of Chemistry and Chemical EngineeringShandong UniversityJinan 250100China Institute of Eco-Environmental Forensics School of Environmental Science and EngineeringShandong UniversityQingdao 266237China

Oxygen activation leading to the generation of reactive oxygen species(ROS)is essential for photocatalytic environmental *** limited efficiency of O_(2)adsorption and reductive activation significantly limits the production of ROS when employing C_(3)N_(4)for the degradation of emerging *** with metal single atoms may lead to unsatisfactory efficiency,due to the recombination of photogenerated electron-hole ***,Mn and S single atoms were introduced into C_(3)N_(4),resulting in the excellent photocatalytic ***/S-C_(3)N_(4)achieved 100%removal of bisphenol A,with a rate constant 11 times that of pristine C_(3)N_(4).According to the experimental results and theoretical simulations,Satoms restrict holes,facilitating the photo-generated carriers’***-atom Mn acts as the O_(2)adsorption site,enhancing the adsorption and activation of O_(2),resulting the generation of *** study presents a novel approach for developing highly effective photocatalysts that follows a new mechanism to eliminate organic pollutants from water.

关键词： Photocatalytic degradation O_(2)activation Reactive oxygen species Emerging pollutants Single-atom catalyst

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Machine learning-based performance predictions for steels considering manufacturing process parameters:a review

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Journal of Iron and Steel Research International 2024年第7期31卷 1555-1581页

作者： Wei Fang Jia-xin Huang Tie-xu Peng Yang Long Fu-xing Yin Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and EngineeringHebei University of TechnologyTianjin 300132China Institute of New Materials Guangdong Academy of ScienceGuangzhou 510651GuangdongChina

Steels are widely used as structural materials,making them essential for supporting our lives and ***,further improving the comprehensive properties of steel through traditional trial-and-error methods becomes challenging due to the continuous development and numerous processing parameters involved in steel *** address this challenge,the application of machine learning methods becomes crucial in establishing complex relationships between manufacturing processes and steel *** review begins with a general overview of machine learning methods and subsequently introduces various performance predictions in steel *** classification of performance pre-diction was used to assess the current application of machine learning model-assisted *** important issues,such as data source and characteristics,intermediate features,algorithm optimization,key feature analysis,and the role of environmental factors,were summarized and *** insights will be beneficial and enlightening to future research endeavors in this field.

关键词： Steel Manufacturing process Machine learning Performance prediction Algorithm

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Pushing working voltage of nickel-rich cathode to 4.6 V by stabilizing lattice oxygen redox via spinel Li_(4)Mn_5O_(12)coating

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Journal of Energy Chemistry 2025年第4期103卷 692-702页

作者： Yunting Wang Gaohui Du Di Han Jiahao Deng Weihao Shi Huayu Li Yongle Wang Siyao Wang Zhan Gao Youqing Wang Shixian Chen Wenqi Zhao Qingmei Su Bingshe Xu Materials Institute of Atomic and Molecular Science Shaanxi University of Science and TechnologyXi’an 710021ShaanxiChina Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030024ShanxiChina Key Laboratory of Interface Science and Engineering in Advanced Materials Taiyuan University of TechnologyTaiyuan 030024ShanxiChina

Augmenting the working voltage is an effective way to maximize the energy density of Ni-rich layered Li[Ni_(0.8)Co_(0.1)Mn_(0.1)]O_(2)(NCM)to approach its theoretical ***,NCM suffers from structural degradation in deep delithiation state,which is often accompanied by severe surface lattice oxygen loss and transition metal dissolution,leading to restricted cycle ***,a facile and effective surfacestrengthening strategy is proposed,in which Mn(OH)_(2)nanoshells are uniformly grown on the NCM surface as a Li~+capturer and then converted to thin spinel Li_(4)Mn_(5)O_(12)layers during subsequent hightemperature *** resultant Li_(4)Mn_(5)O_(12)layers can enhance cathode-electrolyte interface electrochemical stability with inhibited electrolyte corrosion and accelerated Li~+*** theoretical calculations confirms that the Mn-O bonds formed at the interfaces can effectively decrease the oxygen activity,thereby further inhibiting the lattice oxygen release and structural degradation caused by the irreversible phase ***,the Li_(4)Mn_(5)O_(12)-coated NCM displays high capacity retention of 80.3%and 94.9%at 1 C and 5 C compared to the pristine NCM(52.5%and 10.1%)after 200 cycles and can operate stably at 2.7-4.6 V and 60℃.The spinel Li_(4)Mn_(5)O_(12)-coating demonstrates an effective route to enhance the structural/electrochemical stability of NCM for next-generation advanced lithium-ion batteries.

关键词： Ni-rich cathode Interfacial stability Li_(4)Mn_5O_(12)coating High voltage stability

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Evidence of microstructural evolution linked to non-monotonic distribution of micromechanical properties induced by shot peening

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材料科学技术（英文版） 2025年第4期207卷 238-245页

作者： Guoxin Lu Qiang Wang Bonnie Attard Huhu Su Shijian Zheng Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of EducationSchool of Materials Science and EngineeringShandong UniversityJinan250061China Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material AECC Beijing Institute of Aeronautical MaterialsBeijing100095China Department of Metallurgy and Materials Engineering University of MaltaMSD2080Malta Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and EngineeringHebei University of TechnologyTianjin300130China

The residual stress field induced by surface strengthening processes such as mechanical shot peening and other forms of plastic deformation does not generally exhibit a simple"monotonic"distribution *** researchers have analyzed this fact from a mechanical perspective based on Hertz ***,the micro/nano-scale microstructural changes corresponding to the distribution of residual stress fields still appear to be *** this study,we focused on a widely used material in aviation manufacturing,namely nickel-based superalloy GH4169,as our experimental *** subjected GH4169 alloy to me-chanical strengthening treatment using a shot peening intensity of 0.25 mmA,followed by quantitative testing of micromechanical performance indicators such as microhardness and residual *** thor-oughly investigate the relationship between micromechanical properties and microstructure changes,we utilized transmission electron microscopy(TEM)to observe and analyze shot-peened materials at differ-ent *** findings revealed that the most severe microstructural distortion induced by mechanical shot peening in GH4169 alloy was likely to occur within a depth range of 25 to 75 *** observation aligns with the actual phenomenon that the maximum microhardness and maximum residual compres-sive stress did not manifest on the outermost surface of the *** presenting a detailed analysis of deformation defects such as dislocations,stacking faults,and twinning in different depths of mechan-ically strengthened layers,our study contributes to a deeper understanding and practical application of post-processing technologies based on plastic deformation.

关键词： Mechanical shot peening Surface strengthening Residual stress Microstructure

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C=C bond enables difluorideboron b-diketonate derivatives with high contrast mechanoresponsive luminescence for reversible writing and information encryption

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Journal of Materials Chemistry C 2024年第6期13卷 2868-2874页

作者： Xia, Yan Li, Geng Yin, Xiangkai Li, Jie Zhao, Juemin Guo, Kunpeng Tang, Yaxing Wang, Hua Ministry of Education Key Laboratory of Interface Science and Engineering in Advanced Materials College of Materials Science and Engineering Taiyuan University of Technology Taiyuan030024 China College of Textile Engineering Taiyuan University of Technology JinZhong030600 China

Promoting the contrast of mechanoresponsive luminescent materials is of great significance in the application of information storage and encryption. In this work, two D-p-A difluorideboron b-diketonate derivatives were developed by varying the structure of the p-bridge. By incorporating a C=C bond into the phenyl p-bridge of BF2-PhCz, BF2-PVCz with a phenyl vinyl p-unit achieved bathochromic fluorescence with a higher quantum yield and a higher contrast of mechanoresponsive luminescence (MRL). Theoretical calculations and experimental characterization revealed the C=C bond contributed to the enhanced oscillator strength of the molecule and head-to-head molecular packing in the crystal. The applications of reversible writing and information deep-encryption were then realized based on the high-contrast and reversible MRL behavior of BF2-PVCz. © The Royal Society of Chemistry 2025.

关键词： Cryptography

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Preparation, characterization and antibacterial property of naringin loaded PLGA nanospheres

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Progress in Natural science:Materials International 2022年第4期32卷 498-503页

作者： Shuo Wang Tianren Xue Baolong Niu Liqiao Wei Huifang Wang Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of Education Taiyuan University of Technology College of Materials Science and Engineering Taiyuan University of Technology

Naringin is a predominant flavanone in grapefruit and shows a variety of biological effects such as antioxidative,anticancer, anti-inflammatory and antibacterial activity. However, its application in pharmaceutical field is limited by low water solubility, poor bioavailability and instability. To overcome the problem, naringin has been encapsulated in poly（lactic-co-glycolic acid）(PLGA) polymer by emulsion-diffusion-evaporation method in this work. Moreover, naringin loaded PLGA nanospheres were characterized by scanning electron microscope（SEM）,dynamic light scatter method（DLS）, fourier transform infrared（FTIR） spectra, UV–vis spectra and fluorescence spectra of DNA-EB competition displacement. The mean diameter of PLGA nanospheres and NRG/PLGA nanospheres was 123 ± 25 nm and 137 ± 30 nm, respectively. The drug encapsulation efficiency was 86.4% while the drug loading rate was 22.3%. The fluorescence spectra of the competitive DNA-binding experiments revealed that the functional activity of naringin was retained after loaded in PLGA. It is revealed that the initial burst effect happened in the initial 24 h and followed by sustained release lasting for 10 days. Moreover, the nanospheres exhibited strong antibacterial activity, and 99.9% of E. coli and S. aureus were killed when treated with naringin loaded PLGA nanospheres at the concentration of 0.2 mg mL-1within 24 h. Furthermore, the viable cells remained only 48% when the concentration of NRG/PLGA nanospheres was 32 μg m L-1and NRG/PLGA nanospheres was important for inhibition of cancer cells. It is concluded that the stable naringin loaded PLGA nanospheres could have potential application in food industry and nanomedicine field.

关键词： Naringin PLGA Nanospheres Sustained release Antibacterial activity

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