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Competitive coordination enhancing the thermal stability of PDOL electrolytes for safe solid-state lithium metal batteries

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Nano Research 2025年第3期18卷 243-251页

作者： Ying-Ying Pei Jiang-Kui Hu Hong Yuan Shi-Jie Yang Xi-Long Wang Zheng Liao Jia Liu Bo-Quan Li Jia-Qi Huang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China College of Materials Science and Technology Beijing Forestry UniversityBeijing 100083China

Poly(1,3-dioxolane)(PDOL)-based solid electrolytes hold great potential for solid-state lithium(Li)metal batteries due to their superior ionic conductivity at room ***,traditional PDOL electrolytes suffer from inferior thermal stability,which has hampered their practical *** this work,a competitive coordination mechanism is proposed to strengthen vulnerable ether oxygen bonds in PDOL chains,thereby improving the thermal stability of PDOL *** strong coordination of Lewis base ligands on Li_(6.75)La_(3)Zr_(1.75)Ta_(0.25)O_(12)(LLZTO)surface with Li ions weakens the ionic-dipolar interactions between PDOL chains and Li ions,conversely reinforcing the bond energy of ether oxygen *** LLZTO into PDOL electrolytes effectively enhances the thermal decomposition temperature from 110 to 302℃.Li||LiFePO_(4)full cell with a 12μm ultrathin PDOL hybrid electrolyte delivers enhanced discharge capacity and extended cycling life for 100 cycles at an elevated temperature of 60℃.This work provides critical insights into the development of thermally stable PDOL electrolytes for safe solid-state Li metal batteries.

关键词： competitive coordination solid-state battery lithium metal safety electrolyte design

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Perspective on powder technology for all-solid-state batteries:How to pair sulfide electrolyte with high-voltage cathode

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Particuology 2024年第3期86卷 55-66页

作者： Jiangkui Hu Shijie Yang Yingying Pei Xilong Wang Yulong Liao Shuai Li Aolong Yue Jia-Qi Huang Hong Yuan School of Materials Science&Engineering Beijing Institute of TechnologyBeijing100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing100081China

Sulfide solid electrolytes(SEs)have attracted ever-increasing attention due to their superior roomtemperature ionic conductivity(~10^(-2) S cm^(-1)).Additionally,the integration of sulfide SEs and highvoltage cathodes is promising to achieve higher energy ***,the incompatible interfaces between sulfide SEs and high-voltage cathodes have been one of the key factors limiting their ***,this review presents a critical summarization of the interfacial issues in all-solid-state lithium batteries based on sulfide SEs and high-voltage cathodes and proposes strategies to stabilize the electrolyte/cathode ***,the future research direction of electrolyte/cathode interfaces and application prospects of powder technology in sulfide-based ASSLBs were also discussed.

关键词： Sulfide solid electrolytes High-voltage cathodes Electrode/electrolyte interfaces All-solid-state lithium batteries

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Electrodeposition of rare refractory metals in low-temperature ionic liquids

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Rare Metals 2024年第10期43卷 4921-4933页

作者： Lin-Lin Wang Han-Dong Jiao Rui Yuan Le-Yang Li Man-Peng Lin Rui-Yang Sun Jiu-San Xiao Shu-Qiang Jiao Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing 100081China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

Rare refractory metals(RRMs)play a significant role in fundamental industries,including electronics,chemical industry,machinery,etc.,and future advanced fields,such as aerospace and ***,the traditional production processes of RRMs based on high-temperature thermal reduction cannot meet the requirements of low-energy *** dilemma could be addressed efficiently by using a low-temperature electrodeposition strategy in ionic liquids(ILs).This review summarizes a panoramic view of the latest developments on the electrodeposition of RRMs in ILs after a brief review on the current industrial production methods of *** on this,the electrochemical mechanism occurring at the cathode during the electrodeposition process of RRMs in different electrolytes and under different conditions is thoroughly discussed,because it is crucial for the successful production of pure *** addition,this review not only analyses the main challenges that hinder the industrial application of the electrodeposition of RRMs in ILs,but also proposes corresponding *** hope this review can provide a valuable guidance for the fundamental research and industrial development of lowtemperature electrodeposition of RRMs.

关键词： Rare refractory metals Ionic liquids Electrodeposition Production process

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Optimizing the overall performance of Cu–Ni–Si alloy via controllingnanometer-lamellar discontinuous precipitation structure

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International Journal of Minerals,Metallurgy and Materials 2025年第4期32卷 915-924页

作者： Jinyu Liang Guoliang Xie Feixiang Liu Wenli Xue Rui Wang Xinhua Liu Key Laboratory for Advanced Materials Processing(MOE) Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Institute of Materials Genome Engineering Henan Academy of SciencesZhengzhou 450046China

Simultaneously achieving high strength and high electrical conductivity in Cu–Ni–Si alloys pose a significant challenge, which greatly constrains its applications in the electronics industry. This paper offers a new pathway to improve properties, by preparation of nanometer lamellar discontinuous precipitates(DPs) arranged with the approximate same direction through a combination of deformationaging and cold rolling process. The strengthening effect is primarily attributed to nanometer-lamellar DPs strengthening and dislocation strengthening mechanism. The accumulation of dislocations at the interface between nanometer lamellar DPs and matrix during cold deformation process can results in the decrease of dislocation density inside the matrix grains, leading to the acceptably slight reduction of electrical conductivity during cold rolling. The alloy exhibits an electrical conductivity of 45.32%IACS(international annealed copper standard, IACS), a tensile strength of 882.67 MPa, and a yield strength of 811.33 MPa by this method. This study can provide a guidance for the composition and microstructure design of a Cu–Ni–Si alloy in the future, by controlling the morphology and distribution of DPs.

关键词： Cu–Ni–Si alloys discontinuous precipitates nanometer-lamellar strengthening dislocation strengthening

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Effect of Sr^(2+)on 3D gel-printed Sr_(3-x)Mg_(x)(PO_(4))_(2)composite scaffolds for bone tissue engineering

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International Journal of Minerals,Metallurgy and Materials 2023年第11期30卷 2236-2244页

作者： Hongyuan Liu Jialei Wu Siqi Wang Jing Duan Huiping Shao Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China

Porous magnesium strontium phosphate(Sr_(3-x)Mg_(x)(PO_(4))_(2))(x=2,2.5,3)composite scaffolds were successfully prepared by three dimension gel-printing(3DGP)method in this *** results show that Sr_(0.5)Mg_(2.5)(PO_(4))_(2)scaffolds had good compressive strength,and Sr_(1.0)Mg_(2.0)(PO_(4))_(2)scaffolds had good degradation rate in *** weight loss rate of Sr_(1.0)Mg_(2.0)(PO_(4))_(2)scaffolds soaked in simulated body fluid(SBF)or 6 weeks was 6.96%,and pH value varied between 7.50 and 8.61,which was within the acceptable range of human *** biological experiment shows that MC3T3-E1 cells had good adhesion and proliferation on the surface of Sr_(3-x)Mg_(x)(PO_(4))_(2)*** with pure Mg3(PO_(4))_(2)scaffolds,strontium doped scaffolds had excellent comprehensive properties,which explain that Sr_(3-x)Mg_(x)(PO_(4))_(2)composite scaffolds can be used for bone tissue engineering.

关键词： 3D printing magnesium phosphatase strontium porous scaffolds degradability

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Efficient solution-processed InP quantum-dots light-emitting diodes enabled by suppressing hole injection loss

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Nano Research 2023年第5期16卷 7511-7517页

作者： Wenxuan Du Chunyan Cheng Jianjun Tian Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China

Solution-processed cadmium-based quantum dots(QDs)light-emitting diodes(QLEDs)have shown promising for high-definition display panels due to their high colour purity and low-cost fabrication,but the toxicity still is a big *** is considered as the most promising cadmium-free material to achieve high performance QLEDs,however,the performance of the InP-based QLEDs is far behind of the cadmium-based ***,we report high efficiency InP-based QLEDs with more than 20%of external quantum efficiency(EQE)by suppressing hole injection *** suppression is achieved by doping a strong Lewis acid into a Lewis base poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine)to form a Lewis acid-base adduct hole-transport layer(HTL),which improves the hole mobility of the HTL,reduces the hole transfer barrier between HTL and QDs layer to increase hole transport *** eventually leads to a more balanced carrier-injection through accelerating hole-injection to match well with the rate of electron-injection,thus suppressing the hole injection loss in the *** InP-based QLED shows EQE of 20.4%,current efficiency of 25.3 cd·A^(−1),turn-on voltage of 2.0 V,luminance of 24,000 cd·m^(−2).This strategy would be a constructive approach to reduce hole loss for p-n junction optoelectronics.

关键词： InP quantum dot light-emitting diode hole-transport layer high efficiency

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Detection of antisocial personality disorder using optimal multi-head attention based auto encoder

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Multimedia Tools and Applications 2025年第15期84卷 14253-14272页

作者： Rohini, A. Packialatha, A. Vels Institute of Science Technology and Advanced Studies Chennai India

Anti-social personality disorder (ASPD) is one of the mental disorders and the individual with ASPD generally violates the rules and becomes a criminal. Hence, it is essential to predict ASPD and provide proper treatment. This work presents a NLP (natural language programming) and optimal deep learning (DL) model that can automatically detect ASPD. This work undergoes major stages like pre-processing, optimal feature selection and DL based feature extraction and classification. In the pre-processing stage, the data imputation process is carried out. Then, the features essential for ASPD prediction are performed using the adaptive Marine Predators optimizer (AMPO). Finally, the selected features are predicted using the multi-head attention based autoencoder (MHA-AE). This classifier is used for predicting whether the individual is affected by the ASPD or not. The experimental analysis is carried out on the ASPD dataset and the proposed AMPO- MHA-AE model outperformed the conventional DL models. Accuracy and recall values achieved by the proposed ASPD model are 96.5% and 96.4% respectively. The results obtained are inspiring and could serve as a stimulus for researchers to enhance them, considering the significance and interest associated with this research direction. © The Author(s), under exclusive licence to Springer science+Business Media, LLC, part of Springer Nature 2024.

关键词： Forecasting

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Polyarylacetylene as a novel graphitizable precursor for fabricating high-density C/C composite via ultra-high pressure impregnation and carbonization

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Journal of Materials science & technology 2024年第15期182卷 198-209页

作者： Jiaxin Feng Ping Hu Yuan Cheng Yiming Wang Nan Qu Lu Zheng Liancai Xun Chi Zhang Guangdong Zhao Xinghong Zhang National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150001China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China

High-density carbon/carbon(C/C)composite plays a critical role in the aerospace industry owing to excellent mechanical properties and resistance to ***,traditional manufacturing relies on pitch precursor and hot isostatic pressure impregnation and carbonization(HIPIC)technology,which is time-consuming and *** this study,we report an innovative method utilizing polyarylacetylene(PAA)resin and ultra-high pressure impregnation and carbonization(UHPIC)*** extremely high char yield of PAA resin(85 wt.%)and high isotropic pressure of UHPIC(over 200 MPa)promote the densification of the *** a result,we achieve a high-density(1.90 g/cm^(3))C/C composite with a high degree of graphitization(81%).This composite exhibits impressive properties,including flexural strength of 146 MPa,compressive strength of 187 MPa,and thermal conductivity of 147 W/(m K).When exposed to oxyacetylene flame at 3000 K for 100 s,it displays minimal linear ablation,with a rate of 1.27×10^(-2)mm/*** study demonstrates the exceptional graphitizable characteristic of PAA resin,setting it apart from conventional *** time-saving and cost-effective approach holds significant promise for aerospace applications,particularly in harsh aerodynamic heating environments.

关键词： C/C composite Resistance to ablation Polyarylacetylene Ultra-high pressure impregnation and carbonization Graphitization

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Texture adjustment approach of magnesium alloys via variable strain path calculated by an integrated finite element-viscoplastic self-consistent model

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Journal of Materials science & technology 2024年第17期184卷 15-31页

作者： Wenjie Wu Wenzhen Chen Xiaoyu Wang Wenke Wang Wencong Zhang Xinhua Liu Hyoung Seop Kim School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China Key Laboratory for Advanced Materials Processing(MOE) Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Graduate Institute of Ferrous&Energy Materials Technology(GIFT) Pohang University of Science and Technology(POSTECH)Pohang 37673South Korea Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai 9808577Japan

An integrated calculated approach based on weakly coupled finite element(FEM)-viscoplastic selfconsistent(VPSC)model was established to simulate the texture evolution during the variable strain path extrusion process of magnesium *** spiral die extrusion(SDE)process with additional circumferential shear deformation was applied to investigate the effect of path control on texture adjustment and verify the accuracy of the *** results indicated that the additional spiral shear resulting from the overall inclined flow path effectively reduced the intensity of the{0002}//ED fiber texture by suppressing basal slip activation in the core area,while the local shear deformation along the spiral equal channel strain path led to the formation of an inclined{0002}//ND plane texture on the *** the modified Hall-Petch relationship,the correlation between texture and yield strength was ***,the weakening of the texture effectively suppressed{10-12}tensile twinning,which compensated for the deficiency of compressive yield strength without significantly sacrificing tensile yield strength,and thus improved the tension-compression ***,the strongly inclined{0002}//ND plane texture inhibited the widespread activation of basal slip during tensile yielding,thereby enhancing the yield strength.

关键词： Integrated calculated approach Strain path control Texture adjustment Spiral die extrusion Viscoplastic self-consistent

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Ru-doped functional porous materials for electrocatalytic water splitting

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Nano Research 2024年第3期17卷 982-1002页

作者： Chongao Tian Rui Liu Yu Zhang Wenxiu Yang Bo Wang Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Advanced Technology Research Institute(Jinan)Advanced Research Institute of Multidisciplinary ScienceSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Library Beijing Institute of TechnologyBeijing 100081China

Electrolytic water splitting(EWS)is an attractive and promising technique for the production of hydrogen ***,the sluggish kinetic rate of hydrogen/oxygen evolution reactions leads to a high overpotential and low energy *** to date,Pt/Ir-based nanocatalysts have become the state-of-the-art EWS catalysts,but disadvantages such as high cost and low earth abundance greatly limit their applications in EWS *** an attractive candidate for the Pt/Ir catalysts,series of Ru-based nanomaterials have aroused much attention for their low price,Pt-like hydrogen bond strength,and high EWS *** particular,Ru-doped functional porous materials have been becoming one of the most representative EWS catalysts,which can not only achieve the dispersion and adjustment for active Ru sites,but also simultaneously solve the problems of mass transfer and catalytic conversion in *** this review,the design and preparation strategies of Ru-doped functional porous materials toward EWS in recent years are summarized,including Ru-doped metal organic frameworks(MOFs),Ru-doped porous organic polymers(POPs),and their ***,detailed structure–activity relationships induced by the tuned geometric/electronic structures of Ru-doped functional porous materials are further depicted in this *** but not least,the challenges and perspectives of Ru-doped functional porous materials catalysts are reasonably proposed to provide fresh ideas for the design of Ru-based EWS catalysts.

关键词： Ru-based catalyst functional porous materials electrolytic water splitting oxygen evolution reaction hydrogen evolution reaction

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