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Construction of MnS/MoS_(2) heterostructure on two-dimensional MoS_(2) surface to regulate the reaction pathways for high-performance Li-O_(2) batteries

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Journal of Energy Chemistry 2024年第6期93卷 443-452,I0012页

作者： Guoliang Zhang Han Yu Xia Li Xiuqi Zhang Chuanxin Hou Shuhui Sun Yong Du Zhanhu Guo Feng Dang Key laboratory for liquid-Solid Structure Evolution and.Processing of Materials(Ministry of Education) Shandong UniversityJinan 250061ShandongChina School of Environmental and Material Engineering Yantai UniversityYantai 264005ShandongChina Institute National de la Recherche Scientifique CentreÉnergie Matériaux et TélécommunicationsVarennesQuébec J31S2Canada State Key laboratory of Powder Metallurgy Central South UniversityChangsha 410083HunanChina Integrated Composites lab Department of Mechanical and Construction EngineeringNorthumbria UniversityNewcastle Upon TyneNE18STUK

The inherent catalytic anisotropy of two-dimensional(2D) materials has limited the enhancement of LiO_(2) batteries(LOBs) performance due to the significantly different adsorption energies on 2D and edge *** the adsorption strength in 2D materials to the reaction intermediates is essential for achieving high-performance ***,a MnS/MoS_(2) heterostructure is designed as a cathode catalyst by adjusting the adsorption behavior at the *** from the toroidal-like discharge products on the MoS_(2) cathode,the MnS/MoS_(2) surface displays an improved adsorption energy to reaction species,thereby promoting the growth of the film-like discharge *** can disturb the layer growth of MoS_(2),in which the stack edge plane features a strong interaction with the intermediates and limits the growth of the discharge *** and theoretical results confirm that the MnS/MoS_(2) heterostructure possesses improved electron transfer kinetics at the interface and plays an important role in the adsorption process for reaction species,which finally affects the morphology of Li_2O_(2),In consequence,the MnS/MoS_(2) heterostructure exhibits a high specific capacity of 11696.0 mA h g^(-1) and good cycle stability over 1800 h with a fixed specific capacity of 600 mA h g^(-1) at current density of100 mA g^(-1) This work provides a novel interfacial engineering strategy to enhance the performance of LOBs by tuning the adsorption properties of 2D materials.

关键词： Li-O_(2)batteries Two-dimensional materials MnS/MoS_(2)heterostructure Edge plane Adsorption behavior

Enhanced antibacterial activity,corrosion resistance and endothelialization potential of Ti-5Cu alloy by oxygen and nitrogen plasma-based surface modification

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Journal of Materials Science & Technology 2024年第1期168卷 250-264页

作者： Xiaotong Zhao Jiali Hu Jingjun Nie Dafu Chen Gaowu Qin Erlin Zhang Key lab.for Anisotropy and Texture of Materials Education Ministry of ChinaSchool of Materials Science and EngineeringNortheastern UniversityShenyang 110819China research Center for Metallic Wires Northeastern UniversityShenyang 110819China laboratory of Bone Tissue Engineering Beijing Laboratory of Biomedical MaterialsNational Center for OrthopaedicsBeijing Research Institute of Traumatology and OrthopaedicsBeijing Jishuitan HospitalBeijing 100035China

Antibacterial Ti-5Cu alloy is a promising substitute material for Ti-made cardiovascular implants,so its surface engineering is crucial to expediting clinical *** the antibacterial and cardiovas-cular biological benefits of Cu^(2+)and titanium-nitride-oxide(TiN x O y)coatings,a Cu_(2)O/CuO-TiN x O y coating with upregulated Cu^(2+)release was successfully deposited on Ti-5Cu alloy for the first time using oxygen and nitrogen plasma-based surface *** superhydrophilic and nanostructured Cu_(2)O/CuO-TiN x O y coating had a dense structure and was well bonded to the substrate,resulting in enhanced cor-rosion resistance,while CuO/Cu_(2)O in the coating released Cu^(2+)faster than Ti_(2)Cu phase in the *** gratifying,the coating demonstrated perfect antibacterial properties(R>99.9%against ***),owing primarily to direct contact sterilization of Cu_(2)O/*** most encouraging phenomenon was that the coating dramatically accelerated HUVEC adhesion(1.4 times),proliferation(RGR:106%-116%),and particularly migration(RMR:158%-247%)compared with the control *** coating extract also signifi-cantly stimulated in vitro angiogenesis *** rapid endothelialization for Cu_(2)O/CuO-TiN x O y coating was attributed to the surface nanostructure and Cu^(2+)/NO_(2)−release,which upregulated the angiogenesis-related gene expression of HIF-1α,VEGF,and eNOS to increase VEGF secretion and NO *** of the findings indicated that the Cu_(2)O/CuO-TiN x O y coating could enhance the corrosion resistance,an-tibacterial properties,and endothelialization potential of Ti-Cu alloy,displaying great clinical potential in cardiovascular applications.

关键词： Titanium-copper alloy Titanium-nitride-oxide(TiNxOy) Cu^(2+)release Antibacterial property Cell compatibility

Flat friction spot joining of aluminum alloy to carbon fiber reinforced polymer sheets:Experiment and simulation

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Journal of Materials Science & Technology 2022年第12期107卷 266-289页

作者： Peihao Geng Ninshu Ma Hong Ma Yunwu Ma Kazuki Murakami Huihong Liu Yasuhiro Aoki Hidetoshi Fujii Joining and Welding research Institute Osaka University11-1 MihogaokaOsaka 567-0047IbarakiJapan MOE Key lab for liquid-Solid Structure Evolution and Material Processing Institute of Materials JoiningShandong UniversityJinan 250061China

The Al alloy and carbon fiber reinforced polymer(CFRP)hybrid structures,incorporating the performance advantages of the two materials,have been attracting more attention in high-end manufacturing *** the current investigation,the flat friction spot joining(FSJ)was employed in joining the AA6061-T6 alloy and CFRP *** significance of temperature distribution in influencing joint quality was highlighted through analyzing interface microstructural features,weld defect formation as well as *** understand the role of thermal energy generation and conduction in the process comprehensively,a 3D thermal-mechanical coupling finite element model was *** interfacial temperature was characterized by an uneven distribution behavior due to the inhomogeneous heat *** peak temperatures on the top surface and Al alloy to CFRP interface at 1500 rpm rotational speed with 0.1 mm/s plunging speed were 498℃and 489°C,*** peak interface temperature was reduced to286℃at 250 rpm,which produced an extremely small melted *** with the plunging speed,rotational speed was found to be the predominant parameter for determining the joint property,which could be optimized to simultaneously realize the avoidance of thermal decomposition of CFRP,the sufficient melting duration time,and the wide enough melted *** thermal histories and melted area profiles were in agreement with experimental *** findings could be utilized to provide some feasible guidance for process optimization of dissimilar FSJ of metals and composites.

关键词： Friction spot joining Numerical simulation CFRP/Al alloy Interface microstructure Thermal conduction

Efficient Contact between H_(2)O and N-Coordinate Ru Nanoparticles in Three-Dimensionally Ordered Macro/Mesoporous Carbon Boosting Alkaline HER

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Chinese Journal of Chemistry 2024年第2期42卷 164-170页

作者： Jiaqing Luo Chunyu Liu Ruolin Zhang Yuanqing Sun Hua Xu Qingying Hu Manxue Zhang Jun Li Zhenxing Li Weiyu Song Yuechang Wei Jian Liu State Key laboratory of Heavy Oil and Bejing Key lab of Oil&Gas Optical Detection Technology China University of PetroleumBeijing 102249China laboratory of Heavy Oil at Karamay Ching University of Petroleum-Beijing at KaramayKaramayXinjiang 83400China Basic research Center for Energy Interdisciplinary College of ScienceChina University of PetroleumBeijing 102249China Petrochemical research Institute PetroChina Company LimitedBeijing 102206China BeijingNationallaboratoryfor Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

In this study,a novel approach is proposed to achieve the uniformly dispersed Ru nanoparticles with N coordination loaded on three-dimensionally ordered macro/mesoporous carbon(3DOMMC)through simultaneous pyrolysis of Ru^(3+)and cyanamide on *** an alkaline medium,the synthesized catalysts exhibit exceptional hydrogen evolution reaction(HER)***,Ru-N/3DOMMC demonstrates a significantly low overpotential of 13.8 mV to achieve acrent density of 10 *** exhibits a mass activity 17.5 times higher than that of commercial Pt/*** outstanding performance could be attributed to the ultrahigh Ru dispersion and more efficient contact between active sites and reactant,which derived from the large specific surface area and interconnective three-dimensionally macro/mesopores of 3DOMMC.

关键词： 3DOMMC Hydrogen evolution reaction Electrocatalysis Solid-liquid contact Energy conversion

Lamellar water induced quantized interlayer spacing of nanochannels walls

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Green Energy & Environment 2024年第2期9卷 356-365页

作者： Yue Zhang Chenlu Wang Chunlei Wang Yingyan Zhang Junhua Zhao Ning Wei Jiangsu Key laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan UniversityWuxi214122China Key laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas Ministry of EducationNorthwest A&F UniversityYangling712100China Zhangjiang lab Interdisplinary Research CenterShanghai Advanced Research InstituteChinese Academy of SciencesShanghai201210China Key laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai201800China Mechanical&Automotive Engineering School of EngineeringRMIT UniversityBundooraMelbourneVICVIC 3083Australia

The nanoscale confinement is of great important for the industrial applications of molecular sieve,desalination,and also essential in bio-logical transport *** efforts have been devoted to the influence of restricted spaces on the properties of confined ***,the situation of channel-wall is crucial but attracts less attention and remains *** fundamentally understand the mechanism of channel-walls in nanoconfinement,we investigated the interaction between the counter-force of the liquid and interlamellar spacing of nanochannel walls by considering the effect of both spatial confinement and surface *** results reveal that the nanochannel stables at only a few discrete spacing states when its confinement is within 1.4 *** quantized interlayer spacing is attributed to water molecules becoming laminated structures,and the stable states are corresponding to the monolayer,bilayer and trilayer water configurations,*** results can potentially help to understand the characterized interlayers spacing of graphene oxide membrane in *** findings are hold great promise in design of ion filtration membrane and artificial water/ion channels.

关键词： Nanoconfinement Quantized spacing Lamellar water layer MD simulations Entropy force

Eutectic-derived high-entropy nanoporous nanowires for efficient and stable water-to-hydrogen conversion

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Nano research 2022年第6期15卷 4820-4826页

作者： Ying Wang Bin Yu Ming He Zhihua Zhai Kuibo Yin Fangong Kong Zhonghua Zhang State Key laboratory of Biobased Material and Green Papermaking Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Key laboratory for liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061China SEU-FEI Nano-Pico Center Key Lab of MEMS of Ministry of EducationSoutheast UniversityNanjing 210096China

Combining multiple metal elements into one nanostructure merits untold application potential but is still a challenge for the traditional bottom-up synthesis ***,we propose a eutectic-directed self-templating strategy to prepare two multicomponent nanostructured alloys(PtPdRhIrNi(D-SN)and NiPtPdRhIrAl(D-SS))through the combination of rapid solidification with *** PtPdRhIrNi nanoporous nanowires(NPNWs)represent a new family of high-entropy alloys(HEAs)containing delicate hierarchical nanostructure with ultrafine ligament sizes of~2 nm in addition to one-dimensional(1D)***,the PtPdRhIrNi NPNWs display excellent electrocatalytic activity and stability toward hydrogen evolution reaction,with the low overpotential of 22 and 55 mV to afford a current density of 10 mA·cm^(−2)in 0.5 M H_(2)SO_(4)and 1.0 M KOH electrolytes,*** enhanced electrocatalytic performance can be attributed to the high-entropy effect favoring the surface electronic structure for the optimized activity,the promotion impact of Ni,1D morphology facilitating the electron transport,and the nanoporous structure promoting the electrolyte diffusion.

关键词： high-entropy alloy nanoporous nanowires dealloying electrocatalyst hydrogen evolution reaction

Boosting fast interfacial Li^(+)transport in solid-state Li metal batteries via ultrathin Al buffer layer

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Nano research 2023年第5期16卷 6825-6832页

作者： Shengnan Zhang Qing Sun Guangmei Hou Jun Cheng Linna Dai Jianwei Li Lijie Ci Key laboratory for liquid-Solid Structural Evolution&Processing of Materials(Ministry of Education) Research Center for Carbon NanomaterialsSchool of Materials Science and EngineeringShandong UniversityJinan 250061China School of Light Industry and Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China State Key lab of Advanced Welding and Joining School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China School of Science Hubei University of TechnologyWuhan 430068China University of Health and Rehabilitation Sciences Qingdao266071China

Na superionic conductor(NASICON)-type Li_(1.5)Al_(0.5)Ge_(0.5)P_(3)O_(12)(LAGP)solid state electrolytes(SSEs)have attracted significant interests thanks to the prominent ionic conductivity(>10^(–4)S·cm^(–1))at room temperature and superb stability in ***,its application has been hindered by the lithium dendrites and the intrinsic interfacial instability of LAGP towards metallic Li,***,by magnetron sputtering(MS),an ultrathin Al film is deposited on the surface of the LAGP pellet(Al-LAGP).By in-situ alloying reaction,the spontaneously formed LiAl buffer layer inhibits the side reaction between LAGP SSEs and Li metal,induces the uniform distribution of interfacial electric field as *** functional theory(DFT)calculations demonstrate that the LiAl alloy surface promotes the diffusion of lithium atoms due to the lower energy barrier,thereby inhibiting the formation of lithium ***,the Li/Al-LAGP-Al/Li symmetric cells show a low resistance of 210Ωand a durable lifespan over 1,200 h at a high current density of 0.1 mA·cm^(-2).Assembled all solid state lithium metal batteries(ASSLMBs)with LiFePO_(4)(LFP)cathode significantly improve cycle stability and rate performance,proving a promising stabilization strategy towards the NASIOCN type electrolyte/anode interface in solid state Li metal batteries.

关键词： Li_(1.5)Al_(0.5)Ge_(0.5)P_(3)O_(12) solid-state battery Li+transport interfacial modification Al buffer

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应用于高效雾气收集的润滑微沟槽锥

Science China Materials 2024年第5期67卷 1574-1580页

作者：杨二鑫马臣西罗玉琼刘岚郑爽爽姚晰鞠婕 Key lab for Special Functional Materials of Ministry of Education School of MaterialsHenan UniversityKaifeng475004China

液滴在不对称一维表面的定向输送具有广泛应用,包括雾气收集、油水分离、海水淡化及传感等.液滴所受的驱动力和阻力共同作用决定液滴的运动性能,为提高液滴的运动性能,常见的策略是通过在运动方向引入各种不对称结构以增加驱动力,或者... 详细信息

液滴在不对称一维表面的定向输送具有广泛应用,包括雾气收集、油水分离、海水淡化及传感等.液滴所受的驱动力和阻力共同作用决定液滴的运动性能,为提高液滴的运动性能,常见的策略是通过在运动方向引入各种不对称结构以增加驱动力,或者构建光滑表面以减少阻力.然而,到目前为止将增强驱动力和降低阻力同时整合到一个体系中的策略仍未见报道,这主要是由于传统的液体填充润滑表面所需的润滑油很难在物理或化学不对称的表面上稳定存在.本研究中,我们提出在具有微沟槽结构的锥表面接枝柔性聚合物分子刷,即通过协同表面结构和化学修饰来增大液滴在锥结构表面拉普拉斯驱动力并减小粘滞阻力.结果表明,与仅具有微沟槽结构的锥和仅具有聚合物分子刷的光滑锥相比,润滑微沟槽锥可显著提高液滴的运动性能,本研究为开发高效液滴运输智能表面提供了新思路.

关键词： cone structure micro-grooves polymer brush fog harvesting

Mechanical properties of 2024-T4 aluminium alloy joints in ultrasonic vibration enhanced friction stir welding

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China Welding 2013年第4期22卷 8-13页

作者：刘小超武传松 Michael Rethmeier Andreas Pittner Key lab for liquid-Solid Structure Evolution and Materials Processing ( Ministry of Education) andInstitute for Materials Joining Shandong University Jinan 250061. China Federal Institute forMaterials research and Testing Berlin 12205 Germany

Ultrasonic vibration enhanced friction stir welding （UVeFSW） is a recent modification of conventional friction stir welding （FSW）, which transmits ultrasonic vibration directly into the localized area of the workpiece near and ahead of the rotating tool. In this study, a high strength aluminium alloy （2024-T4） was welded by this process and conventional FSW, respectively. Then tensile tests, microhardness tests and fracture surface analysis were performed successively on the welding samples. The tests results reveal that ultrasonic vibration can improve the tensile strength and the elongation of welded joints. The microhardness of the stir zone also increases.

关键词： ultrasonic vibration friction stir welding mechanical properties