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Local charge homogenization strategy enables ultra-high voltage tolerance of polyether electrolytes for 4.7 V lithium metal batteries

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国家科学评论（英文版） 2025年第2期12卷 213-223页

作者： Yuanlong Wu Piao Luo Kexin Su Mao Yu Xin Song Lianzhan Huang Shaocong Zhang Huiyu Song Li Du Weishu Liu Zhiming Cui Guangdong Provincial Key Laboratory of Fuel Cell Technology School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510641China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510641China School of Software Engineering South China University of TechnologyGuangzhou 510006China

In-situ fabricated polyether electrolytes have been regarded as one of the most promising solid electrolyte ***,they cannot match high-voltage cathodes over 4.3 V due to their poor oxidative ***,we propose an effective local charge homogenization strategy based on the triglycidyl isocyanurate(TGIC)crosslinker,achieving ultra-high-voltage electrochemical stability of polyether electrolytes(***)at cutoff voltages up to 4.7 *** introduction of TGIC optimizes the Li+solvation environment,thereby homogenizing the charge distribution at ether oxygen(EO)sites,resulting in significantly enhanced oxidative stability of the polyether main ***,the Li|PTIDOL|LiNi0.6Co0.2Mn0.2O2(NCM622)cell achieves long-term operation at an ultra-high cutoff voltage with a capacity retention of 81.8％after 400 cycles,one of the best results reported for polyether electrolytes to *** work provides significant insights for the development of polyether electrolytes with high-voltage tolerance and the advancement of high-energy-density batteries.

关键词： lithium metal batteries solid polymer electrolytes in-situ polymerization high voltage local charge homogenization

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Polyhydroxyurethanes from Biobased Monomers and CO_(2):A Bridge between Sustainable Chemistry and CO_(2) Utilization

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Chinese Journal of Chemistry 2024年第6期42卷 652-685页

作者： Tharinee Theerathanagorn Tanika Kessaratikoon Hafeez Ur Rehman Valerio D'Elia Daniel Crespy VISTEC Advanced Laboratory for Environment-Related Inorganic and Organic Syntheses Department of Materials Science and EngineeringVidyasirimedhi Institute of Science and Technology21210Wang ChanRayongThailand Department of Materials Science and Engineering Vidyasirimedhi Institute of Science and Technology21210Wang ChanRayongThailand

Polyhydroxyurethanes(PHUs)have received considerable attention in the last decade as potential alternatives to traditional phosgene-based polyurethanes(PUs).The development of suitable 5CC(five membered-ring cyclic carbonate)precursors bearing multiple carbonate moieties(multi-5CCs)is a key requisite for preparing PHUs by polyaddition reaction with bis-or *** sustainable PHUs from CO_(2)-based five-membered cyclic carbonates(5CCs)obtained from biobased epoxides is a valuable strategy to bridge CO_(2) utilization and the upcycling of renewable *** this context,while many multi-5CC monomers reported in the literature are oil-based,recent efforts have led to the development of a large variety of multifunctional 5CCs that are produced by the combination of CO_(2) and renewable resources such as fatty acids and vegetable oils,lignin,terpenes,and *** this work,recent crucial advances(2019—2023)on PHUs prepared from bis-and multi-5CCs produced from CO_(2) and(partially/potentially)biobased substrates are reviewed with respect to their synthesis,thermal and mechanical properties,and their recent,emerging applications.

关键词： CO_(2) conversion Polyhydroxyurethanes Cyclic carbonates Biobased compounds Fatty acids Functional polymers Monomers Renewable resources

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Surface chemistry of electrode materials toward improving electrolyte-wettability:A method review

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InfoMat 2024年第11期6卷 31-65页

作者： Lei Zhao Yuanyou Peng Peiyao Dou Yuan Li Tianqi He Fen Ran State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Department of Polymeric Materials Science and EngineeringSchool of Materials Science and EngineeringLanzhou University of TechnologyLanzhouthe People's Republic of China

The electrolyte-wettability at electrode material/electrolyte interface is a criticalfactor that governs the fundamental mechanisms of electrochemical reactionefficiency and kinetics of electrode materials in practical electrochemicalenergy storage. Therefore, the design and construction of electrode materialsurfaces with improved electrolyte-wettability has been demonstrated to beimportant to optimize electrochemical energy storage performance of electrodematerial. Here, we comprehensively summarize advanced strategies and keyprogresses in surface chemical modification for enhancing electrolytewettabilityof electrode materials, including polar atom doping by post treatment,introducing functional groups, grafting molecular brushes, and surfacecoating by in situ reaction. Specifically, the basic principles, characteristics,and challenges of these surface chemical strategies for improving electrolytewettabilityof electrode materials are discussed in detail. Finally, the potentialresearch directions regarding the surface chemical strategies and advancedcharacterization techniques for electrolyte-wettability in the future are *** review not only insights into the surface chemical strategies forimproving electrolyte-wettability of electrode materials, but also provides strategicguidance for the electrolyte-wettability modification and optimization ofelectrode materials in pursuing high-performance electrochemical energy storagedevices.

关键词： chemical modification electrochemical energy storage electrode materials electrode/electrolyte Interface surface chemistry

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An Integrated Anti-Fouling and Anti-Corrosion Coating Enabled by rGO/AgNPs and Amphiphilic Networks

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engineering 2024年第11期42卷 223-234页

作者： Shu Tian Jinli Zhang Shuan Liu Jingyu Li Jibin Pu Yugang Hao Guobing Ying Qunji Xue Guangming Lu Key Laboratory of Advanced Marine Materials Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Department of Material Science and Engineering College of Mechanics and Engineering ScienceHohai UniversityNanjing 211100China Department of Biochemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China

Marine corrosion and biofouling are challenges that affect marine industrial equipment,and protecting equipment with functional coatings is a simple and effective ***,it is extremely difficult to combine anti-corrosion and anti-fouling properties in a single *** this work,we combine reduced graphene oxide(rGO)/silver nanoparticles(AgNPs)with a hydrophilic polymer in a bio-based silicone-epoxy resin to create a coating with both anti-fouling and anti-corrosion *** excel-lent anti-fouling performance of the coating results from a ternary synergistic mechanism involving foul-ing release,contact inhibition,and a hydration effect,while the outstanding anti-corrosion performance is provided by a ternary synergistic anti-corrosion mechanism that includes a dense interpenetrating net-work(IPN)structure,a barrier effect,and *** results show that the obtained coating pos-sesses superior anti-fouling activity against protein,bacteria,algae,and other marine organisms,as well as excellent anti-corrosion and certain self-healing properties due to its dynamic cross-linked net-work of rGO/AgNPs and the hydrophilic *** work provides an anti-corrosion and anti-fouling integrated coating for marine industrial equipment.

关键词： Anti-fouling Anti-corrosion rGO/AgNPs Amphiphilic coating

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Enhanced thermal and mechanical properties of aluminum nitride ceramics through controlled whisker alignment: A comparative study of unidirectional and bidirectional configurations

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Ceramics International 2025年第16期51卷 22368-22376页

作者： Seo, Yewon Ahn, Byeongho Jeong, Hyeondeok Nahm, Sahn Ryu, Sung-Soo Engineering Materials Center Korea Institute of Ceramic Engineering and Technology Icheon17303 Korea Republic of Department of Materials Science and Engineering Korea University Seoul02841 Korea Republic of Institute of Advanced Composite Materials Korea Institute of Science and Technology Wanju55324 Korea Republic of

This study investigates the effects of aluminum nitride (AlN) whisker alignment on the thermal and mechanical properties of AlN ceramics fabricated through tape casting. By systematically comparing unidirectional (UNI) and bidirectional (BI) whisker arrangements, we examine how alignment configurations influence microstructural development and resulting properties. Bidirectionally aligned specimens achieved the highest thermal conductivity (200Wm−1K−1, 30% increase) through three-dimensional networks of AlN whiskers. In contrast, unidirectionally aligned specimens exhibited superior mechanical performance with a 35% increase in fracture toughness (4.9MPam0.5) through multiple toughening mechanisms enabled by bundles of closely-spaced whiskers. The enhanced properties stem from controlled anisotropic shrinkage during sintering, which creates optimized whisker spacing and orientation. Detailed microstructural analysis reveals distinct toughening mechanisms including crack deflection, branching, and grain bridging in UNI specimens, while BI specimens benefit from interconnected thermal pathways. This study demonstrates that controlled whisker alignment offers an effective approach to tailoring the thermal and mechanical properties of AlN substrates. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Aluminum nitride

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Effect of initial grain size on the recrystallization behavior and recrystallization texture of a Mg-3Gd alloy

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Journal of materials science & technology 2024年第21期188卷 169-182页

作者： Fang Han Xuan Luo Knut Marthinsen Guilin Wu Ziyong Hou Xiaoxu Huang International Joint Laboratory for Light Alloys(MOE) College of Materials Science and EngineeringChongqing UniversityChongqing 400044China Key Laboratory for Light-weight Materials Nanjing Tech UniversityNanjing 210009China Department of Materials Science and Engineering Norwegian University of Science and TechnologyTrondheim 7491Norway Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Shenyang National Laboratory for Materials Science Chongqing UniversityChongqing 400044China

The effect of initial grain size on the recrystallization and recrystallization texture of a rolled Mg–3Gd(wt.%)alloy is studied in *** results show that the deformation microstructure of an initially coarse-grained(CG)sample has a larger twinned area and a higher density of twin boundaries than a fine-grained(FG)*** annealing,the CG sample recrystallizes preferentially in the twinned area,whereas the FG sample adopts the higher density grain boundaries as the nucleation ***,weak recrystallization texture components appear from the grain nucleation stage,regardless of the initial grain size,and are preserved after complete recrystallization due to uniform grain *** majority of recrystallization texture is deviated 20°–45°away from normal direction(ND),accounting for more than 50%.Especially,the recrystallization texture of the FG sample is a“Rare Earth texture”,in contrast to the widely reported texture modification unrelated to grain boundary *** a scattered basal texture is observed in the CG sample,which also differs from the reported“Rare Earth texture”originating from shear band nucleation in dilute Mg–Gd ***,based on the Johnson–Mehl–Avrami–Kolmogorov(JMAK)model,the recrystallization kinetics are calculated,and it is found that the initial grain size mainly affects the nucleation rate,and has limited effect on the grain growth rate.

关键词： Mg-3Gd Grain size Microstructure evolution Recrystallization texture Recrystallization kinetics

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2.5μm-Thick Ultrastrong Asymmetric Separator for Stable Lithium Metal Batteries

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Energy & Environmental materials 2024年第6期7卷 106-117页

作者： Donghao Xie Zekun Wang Xin Ma Yuchen Feng Xiaomin Tang Qiao Gu Yonghong Deng Ping Gao Advanced Materials Thrust Interdisciplinary OfficeThe Hong Kong University of Science and TechnologyClear Water BayHong Kong999077 China Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayHong Kong 999077China Advanced Materials Thrust Function HubThe Hong Kong University of Science and Technology(Guangzhou)Nansha DistrictGuangzhou 511453China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China

Lithium metal batteries(LMBs)are considered the ideal choice for high volumetric energy density lithium-ion batteries,but uncontrolled lithium deposition poses a significant challenge to the stability of such *** this paper,we introduce a 2.5μm-thick asymmetric and ultrastrong separator,which can induce tissue-like lithium *** asymmetric separator,denoted by utPE@Cu_(2)O,was prepared by selective synthesis of Cu_(2)O nanoparticles on one of the outer surfaces of a nanofibrous(diameter~10 nm)ultrastrong ultrahigh molecular weight polyethylene(UHMWPE)*** analysis shows that the lithium deposits have tissue-like morphology,resulting in the symmetric lithium cells assembled using utPE@Cu_(2)O with symmetric Cu_(2)O coating exhibiting stable performance for over 2000 h of *** work demonstrates the feasibility of a facile approach ultrathin separators for the deployment of lithium metal batteries,providing a pathway towards enhanced battery performance and safety.

关键词： in situ SEI lithium deposition regulation separator ultrastrong ultrathin

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Facile synthesis of hybridized Co/Fe-ZIF under solvent-free conditions for efficient oxidation evolution reaction electrocatalysis

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Nano Research 2025年第1期18卷 362-372页

作者： YinSheng Xu Zihan Li Zhonghan Cheng Somboon Chaemchuen State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Chemical Engineering Faculty of EngineeringMahidol UniversityNakhon Pathom 73170Thailand State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

Developing non-noble catalyst synthesis under green conditions with efficient electrochemical reactions is a challenging task in green energy *** meet this challenge,the synthesis of hybridized non-noble cobalt and iron in the zeolitic-imidazole framework(Co/Fe-ZIF)through a solid-state thermal(SST)method is *** the obtained Co/Fe-ZIF structure,iron atoms are uniformly dispersed and randomly hybridized with primary cobalt atoms and imidazole linker,similar to the structure of *** hybridized Co/Fe-ZIF shows potential as an electrocatalyst for oxidation evolution reaction(OER).The optimal iron-incorporating catalyst,Co/Fe_(0.2)-ZIF,demonstrates remarkable performance with a minimized overpotential of 285 mV at the current density(j)of 10 mA·cm^(-2)in 1 M *** synergistic effect of iron and cobalt ions on the catalyst provides active sites that bind to intermediate(OOH^(*))more strongly and facilitate high electron charge transfer,enhancing efficient ***,the synergistic Co/Fe_(0.2-)ZIF catalyst demonstrates excellent durable reaction time compared to non-iron catalyst(ZIF-67)and conventional catalyst(RuO_(2)).

关键词： zeolitic-imidazole frameworks solid-state thermal method solvent-free synthesis electrocatalyst oxidation evolution reaction

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Designing(Hf,Ta)Fe_(2)-based zero thermal expansion composites consisting of multiple Laves phases

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Rare Metals 2024年第12期43卷 6596-6605页

作者： He Wang Yi-Han Wang Yuan-Yuan Gong Gui-Zhou Xu Er Liu Xue-Fei Miao Yu-Jing Zhang Yan-Yan Shao Jun Liu Najam UI Hassan Ishfaq Ahmad Shah Feng Xu MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing210094China Division of Science and Technology Department of PhysicsUniversity of EducationLahore54770Pakistan Department of Physics Ghazi National Institute of Engineering and SciencesDG Khan10550Pakistan

MgZn_(2)-type(Hf,Ta)Fe_(2),known for its negative thermal expansion during magnetic transition,is a key component in the production of zero thermal expansion *** paper presents a basic approach for designing such composites by introducing an additional Laves phase through atomic ***,Co,Ni,A1 and V were chosen to substitute Fe in(Hf,Ta)Fe_(2).The addition of Co or Ni results in the creation of an extra MgCu_(2)(C15)phase in the MgZn_(2)(C14)*** C15phase exhibits positive thermal expansion,which effectively compensates for the negative thermal expansion of the C14 *** adjusting the amount of Co or Ni,zero thermal expansion can be achieved in a given temperature ***,the replacement of Fe by Al or V yields another C14 phase with a higher doping element content relative to the C14 *** two C14 phases possess different magnetic transition temperatures and negative thermal expansion temperature *** combination of the two C14 phases results in zero thermal expansion due to the effective thermal expansion compensation between *** results serve to identify potential approaches for designing(Hf,Ta)Fe_(2)-based zero thermal expansion composites.

关键词： Zero thermal expansion Negative thermal expansion (Hf,Ta)Fe_(2)compounds Laves phase

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Additive manufacturing of Cu-AI-Mn shape memory alloy with enhanced superelasticity

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Rare Metals 2023年第12期42卷 4234-4245页

作者： Meng-Wei Wu Zhuo-Fan Hu Bing-Bing Yang Ying Tao Rui-Ping Liu Chun-Mei Ma Lei Zhang Department of Materials Science and Engineering China University of Mining&Technology(Beijing)Beijing 100083China School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China Department of Mechanical Engineering University of Alaska FairbanksFairbanks 99775-5905USA

The Cu-based shape memory alloy(SMA)with highly oriented columnar crystals is an ideal candidate for the commercial application,especially the ones obtained through rapid cooling via additive manufacturing *** this work,Cu_(71)Al_(18)Mn_(11)(at%)shape memory alloy with strong<001>texture columnar grains was successfully prepared by selective laser melting(SLM).An L27(313)orthogonal array was designed to systematically investigate the effects of laser power,scanning speed,scanning spacing,layer thickness and their interactions on the forming quality of Cu_(71)Al_(18)Mn_(11)***_(71)Al_(18)Mn_(11)alloys with density of 7.3204 g·cm^(-3)and relative density of 99.18%were successfully prepared when the laser power,scanning speed,scanning distance and layer thickness were 240 W,1000 mm·s^(-1),0.11 mm and 25μm,the transformation onset temperature(Ms),martensite phase transformation termination temperature(Mf),austenite phase transformation onset temperature(AS)and austenite phase transformation termination temperature(Af)are-21.84,-26.04,-15.75 and-12.36℃,*** compression strength and fracture strain along the building direction(BD)were significantly superior to the scanning direction(SD),while the superelasticity of compression along the SD reached 2.50%,which was better than that of2.32%along *** mechanical property and superelasticity anisotropy due to the formation of columnar grains and texture were *** study shows that SLM is a proposed method for the preparation of Cu-Al-Mn SMAs with high superelasticity,which provides a new strategy for enhancing the shape memory alloy superelasticity.

关键词： Shape memory alloy(SMA) Selective laser melting(SLM) Columnar grains Superelasticity properties

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