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Synthesis of carbon nanotubes-supported porous silicon microparticles in low-temperature molten salt for highperformance Li-ion battery anodes

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Nano Research 2022年第7期15卷 6184-6191页

作者： Qianliang Zhang Baojuan Xi Weihua Chen Jinkui Feng Yitai Qian Shenglin Xiong Key Laboratory of Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringState Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100China Key Laboratory of Material Processing and Mold of Ministry of Education Zhengzhou UniversityZhengzhou 450001China Key Laboratory for Liquid-Solid Structural Evolution&Processing of Materials Ministry of EducationSchool of Materials Science and EngineeringShandong UniversityJinan 250061China

Silicon-based materials has attracted attention as a promising candidate for lithium-ion batteries(LIBs)with high energy ***,severe volume variation,pulverization,and poor conductivity hindered the development of Si based *** this study,porous Si microparticles supported by carbon nanotubes(p-Si/CNT)are fabricated through simple molten salt assisted dealloying process at low temperature followed by acid *** ZnCl2 molten salt not only provides the liquid environment to enhance the reaction,but also participates the dealloying process and works as template for porous structure when removes by acid ***,distribution of defect sites in CNTs also increases after molten salt *** function theory(DFT)calculations further prove the defects could improve the adsorption of Li+.The participation of CNTs can also contribute to the reaction kinetics and retain the integrity of the *** expected,the p-Si/CNT anode manifests enhanced lithium-storage performance in terms of superior cycling stability and good rate *** p-Si/CNT//LiCoO_(2) full cell assembly further demonstrates its potential as a prospective anode for high-performance LIBs.

关键词： porous Si microparticles carbon nanotubes molten salt lithium-ion batteries

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Complexions-Dominated Plastic Transmission and Mechanical Response in Cu-Based Nanolayered Composites

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金属学报（英文版） 2025年第4期38卷 597-613页

作者： Zhe Yan Qi An Lichen Bai Ruifeng Zhang Mingyu Gong Shijian Zheng Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and EngineeringHebei University of TechnologyTianjin 300130China School of Materials Science and Engineering Beihang UniversityBeijing 100191China Center for Integrated Computational Materials Engineering(International Research Institute for Multidisciplinary Science)and Key Laboratory of High-Temperature Structural Materials&Coatings Technology(Ministry of Industry and Information Technology) Beihang UniversityBeijing 100191China State Key Lab of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Thermodynamically stable and ultra-thin"phase"at the interface,known as complexions,can significantly improve the mechanical properties of nanolayered ***,the effect of complexions features(e.g.,crystalline orientation,crystalline structure and amorphous composition)on the plastic deformation remains inadequately investigated,and the corre-lation with the plastic transmission and mechanical response has not been fully ***,using atomistic simulations,we elucidate the different complexions-dominated plastic transmission and mechanical *** can alter the preferred slip system of dislocation nucleation,depending on the Schmid factor and interface *** nucleation,the dislocation density exhibits an inverse correlation with the stress magnitude,because the number of dislocations influences the initiation of plastic deformation and determines the stress *** crystalline complexions with different structures and orientations,the ability of dislocation transmission is mainly dependent on the continuity of the slip *** plastic transmission can easily proceed and exhibits relatively low flow stress when the slip system is *** the case of amorphous complexions with different compositions,compositional variations impact the atomic percentage of shear trans-formation zones after loading,resulting in different magnitudes of plastic *** smaller plastic deformation is produced,less stress can be released contributing to higher flow *** findings reveal the role of the complexions on plasticity behavior and provide valuable insights for the design of nanolayered composites.

关键词： Atomistic simulations Nanolayered composites Complexions Plasticity Mechanical response

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Bimetallic CoNi single atoms supported on three-dimensionally ordered mesoporous chromia:highly active catalysts for n-hexane combustion

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Green Energy & Environment 2024年第7期9卷 1122-1137页

作者： Xiuqing Hao Yuxi Liu Jiguang Deng Lin Jing Jia Wang Wenbo Pei Hongxing Dai Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Beijing on Regional Air Pollution ControlKey Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaLaboratory of Catalysis Chemistry and NanoscienceDepartment of Chemical EngineeringFaculty of Environment and LifeBeijing University of TechnologyBeijing100124China

Developing the alternative supported noble metal catalysts with low cost,high catalytic efficiency,and good resistance toward carbon dioxide and water vapor is critically demanded for the oxidative removal of volatile organic compounds(VOCs).In this work,we prepared the mesoporous chromia-supported bimetallic Co and Ni single-atom(Co_(1)Ni_(1)/meso-Cr_(2)O_(3))and bimetallic Co and Ni nanoparticle(Co_(NP)Ni_(NP)/mesoCr_(2)O_(3))catalysts adopting the one-pot polyvinyl pyrrolidone(PVP)-and polyvinyl alcohol(PVA)-protecting approaches,*** results indicate that the Co_(1)Ni_(1)/meso-Cr_(2)O_(3)catalyst exhibited the best catalytic activity for n-hexane(C_(6)H_(14))combustion(T_(50%)and T_(90%)were 239 and 263℃ at a space velocity of 40,000 mL g^(-1)h^(-1);apparent activation energy and specific reaction rate at 260℃ were 54.7 kJ mol^(-1)and 4.3×10^(-7)mol g^(-1)_(cat)s^(-1),respectively),which was associated with its higher(Cr^(5+)+Cr^(6+))amount,large n-hexane adsorption capacity,and good lattice oxygen mobility that could enhance the deep oxidation of n-hexane,in which Ni_(1) was beneficial for the enhancements in surface lattice oxygen mobility and low-temperature reducibility,while Co_(1) preferred to generate higher contents of the high-valence states of chromium and surface oxygen species as well as adsorption and activation of n-hexane.n-Hexane combustion takes place via the Mars van Krevelen(MvK)mechanism,and its reaction pathways are as follows:n-hexane→olefins or 3-hexyl hydroperoxide→3-hexanone,2-hexanone or 2,5-dimethyltetrahydrofuran→2-methyloxirane or 2-ethyl-oxetane→acrylic acid→CO_x→CO_(2)and H_(2)O.

关键词： Three-dimensional ordered mesoporous chromium oxide Supported bimetallic single-atom catalyst Cobalt-nickel single atoms n-Hexane combustion Catalytic reaction mechanism

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Design principles of novel Zn fuorocarboxylate protection layer toward durable dendrite-free Zn metal anodes

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Journal of Energy Chemistry 2025年第2期101卷 578-586,I0012页

作者： Biao Ma Xiaolong Cheng Licheng Miao Xinping Tao Pengcheng Shi Yu Shao Shikuo Li Hui Zhang Fangzhi Huang Yu Jiang School of Materials Science and Engineering Anhui UniversityHefei 230601AnhuiChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)College of ChemistryNankai UniversityTianjin 300071China Jiujiang De Fu Technology Co.Ltd.Jiujiang 332000 JiangxiChina

Aqueous Zn ion batteries(ZIBs)have received extensive attention due to their intrinsic safety,high abundance,and low ***,uncontrolled dendrite growth and water-induced side reactions at electrod e/electrolyte interfaces hinder the advancement of ***,density functional theory(DFT)calculation indicates that Zn heptafluorobutyrate can facilitate uniform Zn^(2+)deposition by leveraging the abundant zincophilic groups(e.g.,-COO^(-)and-CF)and inhibit water-induced side reactions due to the presence of hydrophobic carbon chains.A Zn heptafluorobutyrate protective layer(denoted as ZFA)is constructed on the metallic Zn surface in situ by acid etching process to control Zn^(2+)desolvation and nucleation behaviors,ensuring enhanced reversibility and stability of Zn ***,the Zn@ZFA anode demonstrates stable operation for more than 2200 h at 1 mA cm^(-2)and over 7300cycles at 40 mA cm^(-2),with high Coulombic efficiency of 99.8%over 1900 cycles at 5 mA cm^(-2).Impressively,Zn@ZFA‖VO_(2)full cell achieves exceptional cycle life(204 mA h g^(-1)after 750 cycles at 3 A g^(-1))and remarkable rate performance(236 mA g^(-1)at 10 A g^(-1)).This work provides an insightful guidance for constructing a protection layer of dendrite-free Zn anodes for high-performance ZIBs.

关键词： Interfacial modification Long cycle lifespan Zn anode Aqueous Zn metal batteries

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Catalyst-Free Four-Component Spiropolymerization for the Construction of Spirocopolymers with Tunable Photophysical Properties

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Chinese Journal of Polymer science 2023年第10期41卷 1525-1532页

作者： Luo-Jie Zhu Gui-Nan Zhu Wen-Ya Yan Peng Sun Jian-Bing Shi Jun-Ge Zhi Bin Tong Zheng-Xu Cai Yu-Ping Dong Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing100081China Key Laboratory of Cluster Science of Ministry of Education School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing100081China

Spiropolymers have gained a great deal of interest from both academic and industrial fields by virtue of their unique geometric structures and physical ***,we prepared a series of spirocopolymers through the catalyst-free four-component spiropolymerization of diisocyanides,activated alkynes,and two different kinds of monomers with reactive carbonyl *** is found that the polymerization reactivity of monomers,feeding modes,and feed ratios play significant roles in *** with high reactivity and feeding reactive monomers first contribute to improving the molecular weights and yields of the *** constructed copolymers have two different kinds of spiro structures,which is confirmed by the nuclear magnetic *** addition,the spirocopolymers display the unique cluster-triggered emission and aggregation-induced emission properties,and their emission properties can be well-modulated by altering the ratio of *** is highly anticipated that this line of research will enrich the methodology of multi-component spiropolymerization,and provide a new insight into developing spiropolymers with various spiro structures and tunable properties.

关键词： Multi-component spiropolymerization Spirocopolymers Aggregation-induced emissions Clusterization-triggered emissions

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Constructing an OH−-enriched microenvironment on the electrode surface for natural seawater electrolysis

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Nano Research 2024年第11期17卷 9483-9489页

作者： Jiaxin Guo Ruguang Wang Quanlu Wang Ruize Ma Jisi Li Erling Zhao Jieqiong Shan Tao Ling Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education Institute of New-Energy School of Materials Science and Engineering Tianjin University Tianjin 300072 China Department of Chemistry City University of Hong Kong Hong Kong 999077 China

Powered by clean energy, the hydrogen fuel production from seawater electrolysis is a sustainable green hydrogen technology, however, chlorine corrosion and correlative oxidation reactions severely erode the catalysts. Our previous work demonstrates that direct seawater electrolysis without a desalination process and strong alkali addition can be realized by introducing a hard Lewis acid oxide on the catalyst surface to capture OH−. However, the criteria for selecting Lewis acid oxides and the origin of OH− enrichment in chlorine chemistry inhibition on the catalyst surface remain unexplored. Here, we compare the ability of a series of Lewis acid oxides with different acidity constants (pKa), including MnO_(2), Fe_(2)O_(3), and Cr_(2)O_(3), to enrich OH− on the Co3O4 anode catalyst surface. Comprehensive analyses suggest that the lower pKa value of the Lewis acid oxide, the higher concentration of OH− enriched on Co3O4 surface, and the lower Cl− concentration. As established correlation among pKa of Lewis acid oxide, OH− enrichment and Cl− repulsion provide direct guidance for future design of highly active, selective and durable catalysts for natural seawater electrolysis.

关键词： natural seawater electrolysis oxygen evolution reaction(OER)electrocatalyst Lewis acid OH−-enriched microenvironment chlorine chemistry

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A novel Tb^(3+) and Eu^(3+) co-doped dual-emitting phosphate K_(3)SrBi(P_(2)O_(7))_(2) phosphor for application in FIR thermometers

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Journal of Rare Earths 2024年第3期42卷 455-463,I0001页

作者： Baochen Wang Shifeng Sun Zeqi Li Zongwang Li Weiwei Lin Chao Zeng Yan-gai Liu Ruiyu Mi School of Chemical and Environmental Engineering Anhui Polytechnic UniversityWuhu241000China State-Province Joint Engineering Laboratory of Zeolite Membrane Materials Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of EducationInstitute of Advanced MaterialsCollege of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchang330022China Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of GeosciencesBeijing100083China

Rare earth co-doped phosphor for fluorescence intensity ratio(FIR) thermometer has gained increasing attention in recent years. Herein, the novel Tb^(3+)and Eu^(3+)co-doped K_(3)SrBi(P_(2)O_(7))_(2)(KSBP) phosphate phosphors were reported. The crystal structure of the title phosphor was determined using Rietveld refinement and proved to have a three-dimensional structure. The time-resolved spectroscopy reveals that there is almost no energy transfer between Tb^(3+)and Eu^(3+). More importantly, Tb^(3+)and Eu^(3+)emissions show different thermal quenching behaviors, which claims the potential of this material for application in optical thermometer. The FIR of the typical KSBP:0.02Tb^(3+),0.04Eu^(3+)sample demonstrates a polynomial relationship as a function of temperature and the absolute and relative sensitivity are0.025 K^(-1) and 0.59%/K, respectively. In general, our study reports a novel and potential KSBP:Tb^(3+),Eu^(3+)phosphate phosphor that is promising for use in high-sensitive FIR thermometers.

关键词： Phosphor Thermometer Fluorescence intensity ratio Thermal stability Rare earths

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A hybrid bacterium with tumor-associated macrophage polarization for enhanced photothermal-immunotherapy

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Acta Pharmaceutica Sinica B 2022年第6期12卷 2683-2694页

作者： Jingya Zhao Huabei Huang Jinyan Zhao Xiang Xiong Sibo Zheng Xiaoqing Wei Shaobing Zhou Key Laboratory of Advanced Technologies of Materials Ministry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China

Remodeling the tumor microenvironment through reprogramming tumor-associated macrophages(TAMs) and increasing the immunogenicity of tumors via immunogenic cell death(ICD) have been emerging as promising anticancer immunotherapy ***,the heterogeneous distribution of TAMs in tumor tissues and the heterogeneity of the tumor cells make the immune activation *** overcome these dilemmas,a hybrid bacterium with tumor targeting and penetration,TAM polarization,and photo thermal conversion capabilities is developed for improving antitumor immunotherapy in *** hybrid bacteria(B.b@QDs) are prepared by loading Ag;S quantum dots(QDs) on the Bifidobacterium bifidum(B.b) through electrostatic *** hybrid bacteria with hypoxia targeting ability can effectively accumulate and penetrate the tumor tissues,enabling the B.b to fully contact with the TAMs and mediate their polarization toward M1 phenotype to reverse the immunosuppressive tumor *** also enables to overcome the intratumoral heterogeneity and obtain abundant tumor-associated antigens by coupling tumor penetration of the B.b with photo thermal effect of the QDs,resulting in an enhanced immune *** strategy that combines B.b-triggered TAM polarization and QD-induced ICD achieved a remarkable inhibition of tumor growth in orthotopic breast cancer.

关键词： Immunotherapy Tumor-associated macrophage Immunogenic cell death Bifidobacterium Quantum dot

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Resonance of hypernuclei with complex momentum representation

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Chinese Physics C 2025年第4期49卷 68-76页

作者： Hantao Zhang Chao-Feng Chen Xian-Rong Zhou Zhongzhou Ren School of Physics Science and Engineering Tongji UniversityShanghai 200092China School of Physics and Electronic Science East China Normal UniversityShanghai 200241China Key Laboratory of Advanced Micro-Structure Materials Ministry of EducationShanghai 200092China

By combining the Skyrme-Hartree-Fock method with complex momentum representation(CMR),the resonant states of_(Λ)^(17)O,_(Λ)^(41)Ca,_(Λ)^(49)Ca,and_(Λ)^(57)Ni were *** phase shifts for hyperon-nucleus elastic scattering were determined with continuum level density(CLD),and the scattering length as well as the resonance energy were obtained by utilizing the effective range *** method,abbreviated as CMR-CLD,exhibits good consistency with traditional approaches and provides ground work for investigating scattering and resonance problems in deformed and multi-hyperon hypernuclei.

关键词： resonance complex 1 momentum representation hypernuclei

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Advances in liquid-solid triboelectric nanogenerators and its applications

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材料科学技术（英文版） 2025年第11期214卷 153-169页

作者： Tengfei Xiang Xuxin Chen Hui Sun Di Liu Yawei Jiang Shaoqiang Chen Yannan Xie Shihong Zhang Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials(Anhui University of Technology) Ministry of EducationAnhui University of TechnologyMa'anshan 243002China School of Civil Engineering and Architecture Anhui University of TechnologyMa'anshan 243002China School of Civil Engineering and Architecture Anhui University of TechnologyMa'anshan 243002China School of Space Science and Physics Shandong UniversityWeihai 264209China State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM) Jiangsu Key Laboratory for BiosensorsJiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials(Anhui University of Technology) Ministry of EducationAnhui University of TechnologyMa'anshan 243002China

The significance of water energy harvesting in the context of renewable energy utilization is steadily *** response to the need for more efficient utilization of water resources,the nascent technology of liquid-solid triboelectric nanogenerators(TENGs)has emerged as a prospective candidate for the har-vesting of water ***-solid TENGs show several distinct advantages,including their lightweight,low cost,and efficient energy harvesting ***,this review presents a comprehensive expo-sition of the latest advancements in the field of liquid-solid *** delves into the underlying princi-ples and different operational modes while also addressing the factors influencing its output performance from a multifaceted *** factors comprise the intrinsic properties of friction materials,the chemical properties of the liquid,and the ambient temperature of liquid-solid ***,this review delineates the applications of liquid-solid TENGs as self-powered sensors in physics,chemistry,and biomedical contexts,as well as their applications in various other fields such as corrosion resistance,and so *** but not least,it concludes by providing a forward-looking on the future developmental trends of liquid-solid TENGs.

关键词： Triboelectric nanogenerators Liquid-solid interface Energy harvesting Self-powered

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