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Journal of Energy Chemistry 2025年第2期101卷 429-436页

作者： Yiqun Du Rongkai Kang Boya Zhang Han Wang Jianxin Zhang School of material Science & Engineering University of Jinan key laboratory for Liquid-Solid structural Evolution and Processing of materials (Ministry of Education) School of Materials Science and Engineering Shandong University

Developing rechargeable aqueous Zn batteries for large-scale energy storage is impeded by inadequate reversibility and stability of the Zn anode,primarily caused by parasitic reactions and heterogeneous *** study proposes an economical electrolyte strategy to address these Zn-related *** addition of a supporting salt enhances the thermodynamic stability of water,reduces the number of highly reactive water molecules,and modulates the interfacial electrostatic *** approach effectively suppresses hydrogen evolution reaction and uncontrolled ***,the rationally proportioned electrolyte allows a high average Coulombic efficiency of 99.93% for 1000 cycles in a Zn‖Cu battery and a prolonged lifespan exceeding 4800 h in Zn‖Zn *** knock-on effect is that Zn‖MnO2pouch cells deliver stable cycling performance,demonstrating the viability of this approach for practical applications.

关键词： Aqueous electrolyte Hydrogen bond Sodium citrate Solvation structure Zn anode

Introducing strong metal–oxygen bonds to suppress the Jahn-Teller effect and enhance the structural stability of Ni/Co-free Mn-based layered oxide cathodes for potassium-ion batteries

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Journal of Energy Chemistry 2025年第2期101卷 713-722页

作者： Yicheng Lin Shaohua Luo Pengyu Li Jun Cong Wei Zhao Lixiong Qian Qi Sun Shengxue Yan School of materials Science and Engineering Northeastern University School of Resources and materials Northeastern University at Qinhuangdao key laboratory of Dielectric and Electrolyte Functional material Hebei Province

Mn-based layered oxides（KMO） have emerged as one of the promising low-cost cathodes for potassiumion batteries（PIBs）.However,due to the multiple-phase transitions and the distortion in the MnO6structure induced by the Jahn-Teller（JT） effect associated with Mn-ion,the cathode exhibits poor structural ***,we propose a strategy to enhance structural stability by introducing robust metal-oxygen（M-O） bonds,which can realize the pinning effect to constrain the distortion in the transition metal（TM） ***,all the elements employed have exceptionally high crustal *** a proof of concept,the designed K0.5Mn0.9Mg0.025Ti0.025Al0.05O2cathode exhibited a discharge capacity of approximately 100 mA h g-1at 20 mA g-1with 79% capacity retention over 50 cycles,and 73% capacity retention over 200 cycles at 200 mA g-1,showcased much better battery performance than the designed cathode with less robust M-O *** properties of the formed M-O bonds were investigated using theoretical *** enhanced dynamics,mitigated JT effect,and improved structural stability were elucidated through the in-situ X-ray diffractometer（XRD）,in-situ electrochemical impedance spectroscopy（EIS）(and distribution of relaxation times（DRT） method),and ex-situ X-ray absorption fine structure（XAFS） *** study holds substantial reference value for the future design of costeffective Mn-based layered cathodes for PIBs.

关键词： Jahn-Teller effect Layered oxide cathodes Low-cost Potassium-ion batteries Robust M–O bonds

A six-variable quasi-3D isogeometric approach for free vibration of functionally graded graphene origami-enabled auxetic metamaterial plates submerged in a fluid medium

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 157-176页

作者： Wei CHEN Zhihong TANG Yufen LIAO Linxin PENG College of Civil Engineering University of South China College of Civil Engineering and Architecture Guangxi University key laboratory of Disaster Prevention and structural Safety of Ministry of Education Guangxi University

This paper presents, for the first time, an effective numerical approach based on the isogeometric analysis(IGA) and the six-variable quasi-three dimensional(3D)higher-order shear deformation theory(HSDT) to study the free vibration characteristics of functionally-graded(FG) graphene origami(GOri)-enabled auxetic metamaterial(GOEAM) plates submerged in a fluid medium. The plate theory incorporates the thickness stretching and the effects of transverse shear deformation without using any shear correction factors. The velocity potential function and Bernoulli's equation are used to derive the hydrodynamic pressure acting on the plate surface. Both horizontally and vertically immersed plate configurations are considered here in the form of inertia *** plates are composed of multilayer GOEAMs, with the GOri content varying through the plate's thickness in a layer-wise manner. This design results in graded auxetic *** material properties are evaluated by mixing rules and a genetic programming(GP)-assisted micromechanical model. The governing equations of motion for the FG-GOEAM plates immersed in a fluid medium are derived by Hamilton's principle. After validating the convergence and accuracy of the present model, a comprehensive parametric study is carried out to examine the effects of the GOri content, GOri distribution pattern, GOri folding degree, fluid level, immersed depth, and geometric parameter on the natural frequencies of the FG-GOEAM plates. The results show that the natural frequencies for the four GOri distribution patterns increase with the increase in the layer number when the lay number is fewer than 10, and then stabilize after the layer number reaches ***, in general, the natural frequency of the FG-GOEAM plate in a vacuum or fluid increases when the GOri content increases, while decreases when the GOri folding degree increases. Some additional findings related to the numerical results are presented in the conclusions. It is belie

关键词： free vibration functionally-graded (FG) graphene origami (GOri)-enabled auxetic metamaterial (GOEAM) plate hydrodynamic pressure isogeometric analysis (IGA) O321 quasi-three dimensional (3D) higher-order shear deformation theory (HSDT)

Enhancing anion conductivity in a highly alkali-stable eta topologic Cu(Ⅰ) framework via strong electrostatic repulsion

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Science China Chemistry 2025年

作者： Xiaolu Wang Shaohui Guo Chao Suo Fuqiang Zhang Junhao Wang Wenjing Wang Daqiang Yuan Linfeng Liang Xianming Zhang College of Chemistry Taiyuan University of Technology Institute of Crystalline materials Shanxi University School of Chemistry and materials Science Shanxi Normal University State key laboratory of structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Metal-organic frameworks （MOFs） based on anion exchange membranes （AEMs） have garnered considerable interest,particularly for their potential to enhance ion conductivity by pre-introducing anions into *** approach is recognized as straightforward and effective for improving ion ***,developing high-performance AEMs is limited by the inherent instability and low resistance of *** study presents a novel 1,3,5-triazineμ3-bridged neutral Cu（I） framework,designated SXU-120 （where SXU represents shanxi University）.This framework is synthesized using melamine,a widely available industrial product,as the starting material,achieving a high space-time yield exceeding 1.1 kg *** organic ligands and metal ions in SXU-120 are 3-connected,forming a rare eta topology with the point symbol 8～***-120 exhibits exceptional stability,even in a 10 M KOH solution,due to its high density of uncoordinated–NH2and carbonyl ***,the framework’s unique one-dimensional channels,characterized by their electronegativity,interact electrostatically with OH-ions,thereby accelerating OH-ion transfer along these ***,the OH-conductivity of this material reaches an impressive 0.49 S cm-1at 90°C under full humidity for 100 h,representing the highest OH-conductivity reported for MOF-based conductors to *** properties make SXU-120 a promising candidate for efficient AEM materials in next-generation industrial applications.

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Stable geometries and magnetic properties in transition-metaldoped Sm5Co19 permanent magnet alloys:Insights from DFT

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Science China(Physics,Mechanics & Astronomy) 2025年第04期Mechanics & Astronomy) .卷 223-231页

作者： Cheng Fang Zhi Yan Xu-Jin Zhang Jian-Hua Xiao Fang Wang Xiao-Hong Xu School of Chemistry and materials Science of shanxi Normal University & key laboratory of Magnetic Molecules and Magnetic Information materials of Ministry of Education Research Institute of materials Science Shanxi Key Laboratory of Advanced Magnetic Materials and Devices Shanxi Normal University

Sm5Co19permanent magnet alloy holds significant potential for applications due to its ultra-high intrinsic coercivity, low temperature coefficient of coercivity and high Curie temperature. However, its metastable nature poses challenges for experimental synthesis. Here we propose to use transition metal doping to effectively improve the structural stability and comprehensive magnetic properties of Sm5Co19based on first-principles calculations. We find that Sc, Ti, V, Cr, Mn, and Zr preferentially occupy the Sm-6c2 site, while Fe, Ni, Cu, and Zn preferentially occupy the Co-6c2, Co-18h1, Co-18h2, and Co-18h2 site, respectively. Additionally, doping elements at their optimal sites significantly enhance the structural stability of the doped system. Whether substituting Sm or Co sites, doping with Cr, Mn, and Fe significantly increases the total magnetic moment of the Sm5Co19system. Within the number of doping atoms range from 0 to 12, doping with Cr, Mn, and Fe enhances both the structural stability and the total magnetic moment of the Sm5Co19system, further confirming the significant impact of atomic site occupation on the performance of the doped system. This study presents a feasible approach for enhancing the structural stability of Sm5Co19permanent magnets and offers valuable theoretical guidance for the development of highperformance Sm-Co based permanent magnet materials.

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Effect of insomnia on anxiety and depression:Mediation of cognitive failures and moderated mediation of neuroticism

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World Journal of Psychiatry 2025年第2期15卷 161-172页

作者： Yue Li Jia-Long Yu Shu-Yi Wang Lu-Xin Xie Jia-Long Hong Sha Liu Department of Psychiatry First Hospital of Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina shanxi key laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder First Hospital of Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Humanities and Social Science Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Medical Sciences Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina

BACKGROUND The coronavirus disease 2019 pandemic has had an ongoing impact on the public’s mental health that requires long-term *** the relationship between mental health indicators would aid in identifying solutions to improve public mental *** To investigate the prevalence of anxiety,depression,and insomnia and explore the relationship among neuroticism,cognitive failures,and mental *** A cross-sectional survey was conducted in December 2023 using an online platform to recruit adult *** neuroticism,subjective cognitive function,and mental health of the participants were assessed using the neuroticism subscale of the Chinese Big Five Personality Inventory Brief Version,cognitive failures questionnaire,generalized anxiety disorder-7,patient health questionnaire-9,and insomnia severity ***'s correlation analysis,independent samples t-tests,one-way analysis of variance,and structural equation model were used to examine the relationship between mental health *** A total of 1011 valid questionnaires were collected,of which 343 were completed by male(33.93%)respondents and 668 were completed by female(66.07%)*** rates of anxiety,depression,and insomnia were 41.3%,44.6%,and 36.3%,respectively,most cases of which were *** the mental health indicators,there were significant differences by age and between those with siblings and those who were only *** and cognitive failures were significantly positively correlated with mental health *** moderated mediation analysis showed that cognitive failures mediated the relationship between insomnia and anxiety and between insomnia and depression,with neuroticism moderating the first half of this pathway and the effect being greater in the low-neuroticism *** Cognitive failures and neuroticism play important roles in mental ***,enhancing subjective cognitive function and regulating emotio

关键词： Insomnia Anxiety Depression Neuroticism Cognitive failures

Robust interface and excellent as-built mechanical properties of Ti–6Al–4V fabricated through laser-aided additive manufacturing with powder and wire

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International Journal of Minerals,Metallurgy and materials 2025年第1期32卷 154-168页

作者： Fei Weng Guijun Bi Youxiang Chew Shang Sui Chaolin Tan Zhenglin Du Jinlong Su Fern Lan Ng key laboratory for Liquid-Solid structural Evolution and Processing of materials Ministry of EducationShandong Engineering&Technology Research Center for Superhard MaterialSchool of Materials Science and EngineeringShandong UniversityJinan 250061China Institute of Intelligent Manufacturing Guangdong Academy of SciencesGuangzhou 510095China Singapore Institute of Manufacturing Technology 5 Cleantech Loop636732Singapore

The feasibility of manufacturing Ti-6Al-4V samples through a combination of laser-aided additive manufacturing with powder(LAAM_(p))and wire(LAAM_(w))was explored.A process study was first conducted to successfully circumvent defects in Ti-6Al-4V deposits for LAAM_(p) and LAAM_(w),*** the optimized process parameters,robust interfaces were achieved between powder/wire deposits and the forged substrate,as well as between powder and wire *** characterization results revealed the epitaxial prior β grains in the deposited Ti-6Al-4V,wherein the powder deposit was dominated by a finerα′microstructure and the wire deposit was characterized by lamellar α *** mechanisms of microstructure formation and correlation with mechanical behavior were analyzed and *** mechanical properties of the interfacial samples can meet the requirements of the relevant Aerospace material Specifications(AMS 6932)even without post heat *** fracture occurred within the interfacial area,further suggesting the robust *** findings of this study highlighted the feasibility of combining LAAM_(p) and LAAM_(w) in the direct manufacturing of Ti-6Al-4V parts in accordance with the required dimensional resolution and deposition rate,together with sound strength and ductility balance in the as-built condition.

关键词： laser-aided additive manufacturing powder deposition wire deposition interfacial characteristic mechanical behavior

An analytical poroelastic model for laboratorial mechanical testing of the articular cartilage (AC)

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Applied Mathematics and Mechanics(English Edition) 2018年第6期39卷 813-828页

作者： Xiaogang WU Kuijun CHEN Zhaowei WANG Ningning WANG Teng ZHAO Yanan XUE Yanqin WANG Weiyi CHEN shanxi key laboratory of material strength & structural impact College of Mechanics Taiyuan University of Technology Taiyuan 030024 China

The articular cartilage （AC） can be seen as a biphasic poroelastic material. The cartilage deformation under compression mainly leads to an interstitial fluid flow in the porous solid phase. In this paper, an analytical poroelastic model for the AC under laboratorial mechanical testing is developed. The solutions of interstitial fluid pressure and velocity are obtained. The results show the following facts. （i） Both the pressure and fluid velocity amplitudes are proportional to the strain loading amplitude. （ii） Both the amplitudes of pore fluid pressure and velocity in the AC depend more on the loading amplitude than on the frequency. Thus, in order to obtain the considerable fluid stimulus for the AC cell responses, the most effective way is to increase the loading amplitude rather than the frequency. （iii） Both the interstitiM fluid pressure and velocity are strongly affected by permeability variations. This model can be used in experimental tests of the parameters of AC or other poroelastic materials, and in research of mechanotransduction and injury mechanism involved interstitial fluid flow.

关键词： articular cartilage (AC) poroelasticity interstitial fluid flow laboratorialmechanical test injury mechanism

La-substituted W-type barium-nickel ferrites for tunable and high-performance electromagnetic wave absorption

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International Journal of Minerals,Metallurgy and materials 2025年第3期32卷 645-656页

作者： Long Wang Jiurong Liu Shenghui Xie Yanli Deng Zhou Wang Shanyue Hou Shengying Yue Gang Wang Na Wu Zhihui Zeng key laboratory for Liquid-Solid structural Evolution and Processing of materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061China Electronic materials Research laboratory Key Laboratory of the Ministry of Education and International Center for Dielectric ResearchSchool of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China Army Engineering University of PLA College of Field Engineering Nanjing 210007China laboratory for Multiscale Mechanics and Medical Science State Key Laboratory for Strength and Vibration of Mechanical StructuresSchool of AerospaceXi’an Jiaotong UniversityXi’an 710049China Department of Electrical and Computer Engineering Beckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana-ChampaignUrbana 61801USA School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100China

W-type barium-nickel ferrite(BaNi_(2)Fe_(16)O_(27))is a highly promising material for electromagnetic wave(EMW)absorption be-cause of its magnetic loss capability for EMW,low cost,large-scale production potential,high-temperature resistance,and excellent chemical ***,the poor dielectric loss of magnetic ferrites hampers their utilization,hindering enhancement in their EMW-absorption *** efficient strategies that improve the EMW-absorption performance of ferrite is highly desired but re-mains ***,an efficient strategy substituting Ba^(2+)with rare earth La^(3+)in W-type ferrite was proposed for the preparation of novel La-substituted ferrites(Ba_(1-x)LaxNi_(2)Fe_(15.4)O_(27)).The influences of La^(3+)substitution on ferrites’EMW-absorption performance and the dissipative mechanism toward EMW were systematically explored and ***^(3+)efficiently induced lattice defects,enhanced defect-induced polarization,and slightly reduced the ferrites’bandgap,enhancing the dielectric properties of the ***^(3+)also enhanced the ferromagnetic resonance loss and strengthened magnetic *** effects considerably improved the EMW-absorption perform-ance of Ba_(1-x)LaxNi_(2)Fe_(15.4)O_(27)compared with pure W-type *** x=0.2,the best EMW-absorption performance was achieved with a minimum reflection loss of-55.6 dB and effective absorption bandwidth(EAB)of 3.44 GHz.

关键词： electromagnetic wave absorption W-type barium ferrite rare earth dielectric

Random Vibration Control of Laminated Composite Plates with Piezoelectric Fiber Reinforced Composites

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Acta Mechanica Solida Sinica 2016年第3期29卷 316-327页

作者： Jinqiang Li Zhuorui Ma Zhihua Wang Yoshihiro Narita College of Mechanics Shanxi Key Laboratory of Material Strength & Structural ImpactTaiyuan University of Technology Faculty of Engineering Hokkaido University

This paper presents an analysis of the active control of random vibration for lami- nated composite plates using piezoelectric fiber reinforced composites （PFRC）. With Hamilton＇s principle and the Rayleigh-Ritz method, the equation of motion for the resulting electromechani- cal coupling system is derived. A velocity feedback control rule is employed to obtain an effective active damping in the suppression of random vibration. The power spectral density and mean- square displacements of the random vibration for laminated plates under different control gains are simulated and the validity of the present control strategy is confirmed. The effect of piezoelec- tric fiber orientation in the PFRC layer on the random vibration suppression is also investigated. The analytical methodology can be expanded to other kinds of random vibration.

关键词： random vibration active control laminated composite plate velocity feedback,piezoelectric material