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Energy & Environmental materials 2024年第2期7卷 30-38页

作者： Tiandong Zhang Hainan Yu Young Hoon Jung Changhai Zhang Yu Feng Qingguo Chen Keon Jae Lee Qingguo Chi School of Electrical and Electronic engineering Harbin University of Science and TechnologyHarbin 150080China department of materials science and engineering Korea Advanced Institute of Science and TechnologyDaejeon 350701Korea

Biaxially oriented polypropylene(BOPP)is one of the most commonly used commercial capacitor films,but its upper operating temperature is below 105℃due to the sharply increased electrical conduction loss at high *** this study,growing an inorganic nanoscale coating layer onto the BOPP film's surface is proposed to suppress electrical conduction loss at high temperature,as well as increase its upper operating *** kinds of inorganic coating layers that have different energy band structure and dielectric property are grown onto the both surface of BOPP films,*** effect of inorganic coating layer on the high-temperature energy storage performance has been systematically *** favorable coating layer materials and appropriate thickness enable the BOPP films to have a significant improvement in high-temperature energy storage ***,when the aluminum nitride(AIN)acts as a coating layer,the AIN-BOPP-AIN sandwich-structured films possess a discharged energy density of 1.5 J cm^(-3)with an efficiency of 90%at 125℃,accompanying an outstandingly cyclic *** the discharged energy density and operation temperature are significantly enhanced,indicating that this efficient and facile method provides an important reference to improve the high-temperature energy storage performance of polymer-based dielectric films.

关键词： coating layer energy storage interfacial barrier polymer films

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Topological Structure-Modulated Collagen Carbon as Two-in-One Energy Storage Configuration toward Ultrahigh Power and Energy Density

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Energy & Environmental materials 2024年第2期7卷 18-29页

作者： Li Yuan Wenlong Cai Yunhong Wei Yiran Pu Can Liu Yun Zhang Hao Wu College of materials science and engineering Sichuan UniversityChengdu 610065China department of Applied Chemistry University of Science and Technology of ChinaHefei 230026China

Efficient energy storage devices with suitable electrode materials,that integrate high power and high energy,are the crucial requisites of the renewable power source,which have unwrapped new possibilities in the sustainable development of energy and the ***,a facile collagen microstructure modulation strategy is proposed to construct a nitrogen/oxygen dual-doped hierarchically porous carbon fiber with ultrahigh specific surface area(2788 m^(2)g^(-1))and large pore volume(4.56 cm^(3)g^(-1))via local microfibrous breakage/disassembly of natural structured *** operando spectroscopy and density functional theory unveil that the dual-heteroatom doping could effectively regulate the electronic structure of carbon atom framework with enhanced electric conductivity and electronegativity as well as decreased diffusion resistance in favor of rapid pseudocapacitive-dominated Li^(+)-storage(353 mAh g^(-1)at 10 A g^(-1)).Theoretical calculations reveal that the tailored micro-/mesoporous structures favor the rapid charge transfer and ion storage,synergistically realizing high capacity and superior rate performance for NPCF-H cathode(75.0 mAh g^(-1)at 30 A g^(-1)).The assembled device with NPCF-H as both anode and cathode achieves extremely high energy density(200 Wh kg^(-1))with maximum power density(42600 W kg^(-1))and ultralong lifespan(80%capacity retention over 10000 cycles).

关键词： collagen carbon energy storage device theoretical calculations topological structure modulation ultrahigh power and energy density

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Incorporation of Ionic Conductive Polymers into Sulfide Electrolyte-Based Solid-State Batteries to Enhance Electrochemical Stability and Cycle Life

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Energy & Environmental materials 2024年第6期7卷 4-12页

作者： Juhyoung Kim Woonghee Choi Seong-Ju Hwang Dong Wook Kim Advanced materials Division Korea Research Institute of Chemical Technology(KRICT)Daejeon 34114Korea department of Material science and engineering Yonsei UniversitySeoul 03722Korea department of Material science and engineering Seoul National UniversitySeoul 08826Korea Advanced materials and Chemical engineering University of Science and Technology(UST)Daejeon 34113Korea

Sulfide-based inorganic solid electrolytes are promising materials for high-performance safe solid-state *** high ion conductivity,mechanical characteristics,and good processability of sulfide-based inorganic solid electrolytes are desirable properties for realizing high-performance safe solid-state batteries by replacing conventional liquid ***,the low chemical and electrochemical stability of sulfide-based inorganic solid electrolytes hinder the commercialization of sulfide-based safe solid-state ***,the instability of sulfide-based inorganic solid electrolytes is intensified in the cathode,comprising various *** this study,carbonate-based ionic conductive polymers are introduced to the cathode to protect cathode materials and suppress the reactivity of sulfide *** instruments,including electrochemical spectroscopy,X-ray photoelectron spectroscopy,and scanning electron microscopy,confirm the chemical and electrochemical stability of the polymer electrolytes in contact with sulfide-based inorganic solid ***-based solid-state cells show stable electrochemical performance over 100 cycles when the ionic conductive polymers were applied to the cathode.

关键词： composite cathode electrochemical stability ionic conductive polymer solid-state battery sulfide solid electrolyte

Ordered mesoporous nanofibers mimicking vascular bundles for lithium metal batteries

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National science Review 2024年第5期11卷 291-302页

作者： Xiaohang Zhu Mengmeng Liu Fanxing Bu Xin-Yang Yue Xiang Fei Yong-Ning Zhou Anqi Ju Jianping Yang Pengpeng Qiu Qi Xiao Chao Lin Wan Jiang Lianjun Wang Xiaopeng Li Wei Luo State Key Laboratory for Modification of Chemical Fibers and Polymer materials Institute of Functional Materials College of Materials Science and Engineering Donghua University Institute for Conservation of Cultural Heritage Shanghai University Frontiers science Center for Transformative Molecules School of Chemistry and Chemical EngineeringShanghai Jiao Tong University department of materials science Fudan University

Hierarchical self-assembly with long-range order above centimeters widely exists in nature. Mimicking similar structures to promote reaction kinetics of electrochemical energy devices is of immense interest, yet remains challenging. Here, we report a bottom-up self-assembly approach to constructing ordered mesoporous nanofibers with a structure resembling vascular bundles via electrospinning. The synthesis involves self-assembling polystyrene（PS） homopolymer, amphiphilic diblock copolymer, and precursors into supramolecular micelles. Elongational dynamics of viscoelastic micelle solution together with fast solvent evaporation during electrospinning cause simultaneous close packing and uniaxial stretching of micelles, consequently producing polymer nanofibers consisting of oriented micelles. The method is versatile for the fabrication of large-scale ordered mesoporous nanofibers with adjustable pore diameter and various compositions such as carbon, SiO2, TiO2and WO3. The aligned longitudinal mesopores connected side-by-side by tiny pores offer highly exposed active sites and expedite electron/ion transport. The assembled electrodes deliver outstanding performance for lithium metal batteries.

关键词： ordered mesoporous nanofibers electrospinning oriented micelles lithium metal batteries

Layered coordination polymer with two-dimensional covalent bismuth-organic networks:Semiconductor and lithium ion storage

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Nano Research 2024年第3期17卷 2181-2185页

作者： Mu-Qing Li Yulin Cao Lei Qin Hua Cheng Weimin Yang Zhouguang Lu School of materials science and Environmental engineering Shenzhen Polytechnic UniversityShenzhen 518055China Industrial Training Center Shenzhen Polytechnic UniversityShenzhen 518055China department of materials science and engineering Southern University of Science and TechnologyShenzhen 518055China department of Chemistry Southern University of Science and TechnologyShenzhen 518055China

Single crystals of a bismuth-based coordination polymer(CP)with carboxyl-thiol ligands,[Bi(C_(8)H_(2)O_(4)S_(2))(C2H8N)]n(Bi-DSBDC-DMA,DMBDC=2,5-disulfur-1,4-dicarboxylate,DMA=dimethylamine),have been successfully synthesized.X-ray diffraction analysis reveals that Bi-DSBDC-DMA possesses a layered structure,with two-dimensional(2D)Bi-DSBDC networks alternating with layers composed of dimethylamine *** material demonstrates semiconducting properties,featuring an optical bandgap of 2.2 eV and an electrical conductivity of 2×10^(-8) S/***,electrodes based on this material exhibit a capacity of 250 mAh/g after 200 cycles for lithium-ion storage.

关键词： bismuth layer coordination polymer(CP) semiconductor lithium ion storage

In-situ forming ultra-mechanically sensitive materials for high-sensitivity stretchable fiber strain sensors

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National science Review 2024年第6期11卷 254-263页

作者： Rouhui Yu Changxian Wang Xiangheng Du Xiaowen Bai Yongzhong Tong Huifang Chen Xuemei Sun Jing Yang Naoji Matsuhisa Huisheng Peng Meifang Zhu Shaowu Pan State Key Laboratory for Modification of Chemical Fibers and Polymer materials College of Materials Science and Engineering Donghua University MOE Key Lab of Disaster Forecast and Control in engineering School of Mechanics and Construction Engineering Jinan University State Key Laboratory of Molecular engineering of Polymers Department of Macromolecular Science and Institute of Fiber Materials and Devices Fudan University department of Cardiology Shanghai Xuhui Central HospitalZhongshan-Xuhui Hospital Fudan University Research Center for Advanced science and Technology and Institute of Industrial Science The University of Tokyo

Fiber electronics with flexible and weavable features can be easily integrated into textiles for wearable applications. However, due to small sizes and curved surfaces of fiber materials, it remains challenging to load robust active layers, thus hindering production of high-sensitivity fiber strain sensors. Herein, functional sensing materials are firmly anchored on the fiber surface in-situ through a hydrolytic condensation *** anchoring sensing layer with robust interfacial adhesion is ultra-mechanically sensitive, which significantly improves the sensitivity of strain sensors due to the easy generation of microcracks during stretching. The resulting stretchable fiber sensors simultaneously possess an ultra-low strain detection limit of 0.05%, a high stretchability of 100%, and a high gauge factor of 433.6, giving 254-folds enhancement in sensitivity. Additionally, these fiber sensors are soft and lightweight, enabling them to be attached onto skin or woven into clothes for recording physiological signals, e.g. pulse wave velocity has been effectively obtained by them. As a demonstration, a fiber sensor-based wearable smart healthcare system is designed to monitor and transmit health status for timely intervention. This work presents an effective strategy for developing high-performance fiber strain sensors as well as other stretchable electronic devices.

关键词： fiber strain sensor stretchable wearable healthcare

Property evolution and service life prediction of novel metallic materials for future lunar bases

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Rare Metals 2024年第10期43卷 5318-5331页

作者： Sen-Kuan Meng Rui-Song Zhu Hong-Liang Zheng Tong Gao Shi-Hao Jiang Wen-Hao Wang Shu-Hao Zhang Zi-Yuan Zhao Xuan Ge Wei-Min Wang Li-Na Hu Zheng Wang Key Laboratory for Liquid-Solid Structural Evolution and Processing of materials (Ministry of Education) School of Materials Science and EngineeringShandong University department of Chemistry and Bioscience Aalborg University

While lunar bases have been a focus of development in recent years, the complex and extreme environment of the lunar surface remains a considerable challenge for lunar exploration. Unlike those on Earth,lunar day and night temperature variations cause the properties of materials, especially metallic materials, to evolve in completely different manners. In this study, we investigated the property evolution of nine typical highperformance metallic materials using laboratory simulations of the extremely long-period lunar temperature environment. While lunation treatment improves the properties of all metallic materials, the microscopic mechanisms vary for amorphous and crystalline alloys with different structures. The treatment reduces both the loosely packed regions and heterogeneity in amorphous alloys while causing significant phase changes in crystalline alloys. Furthermore, a conservative prediction of the service life of metallic materials on lunar bases is provided based on analyzing microplastic events, followed by the practical material selection recommendations in various lunar application scenarios.

关键词： Lunar exploration Metallic glass Metallic material Property evolution

Thermoelectrocatalysis: an emerging strategy for converting waste heat into chemical energy

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National science Review 2024年第4期11卷 19-21页

作者： Yuqiao Zhang Shun Li Jianming Zhang Li-Dong Zhao Yuanhua Lin Weishu Liu Federico Rosei Institute of Quantum and Sustainable Technology(IQST) School of Chemistry and Chemical Engineering Jiangsu University School of materials science and engineering Beihang University State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University department of materials science and engineering Southern University of Science and Technology Centre for Energy Materials and Telecommunications Institut national de la recherche scientifique

Waste heat emissions are universally present in the environment and industrial production. Innovations aimed at efficiently utilizing low-grade thermal energy have long been desired. Among these, thermoelectric materi...

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MgO-attached graphene nanosheet(MgO@GNS)reinforced magnesium matrix nanocomposite with superior mechanical,corrosion and biological performance

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International Journal of Minerals,Metallurgy and materials 2024年第9期31卷 2062-2076页

作者： S.Abazari A.Shamsipur H.R.Bakhsheshi-Rad M.S.Soheilirad F.Khorashadizade S.S.Mirhosseini department of materials and Metallurgical engineering Amirkabir University of TechnologyTehran ***Iran Iranian National Standards Organization of Hormozgan HormozganIran Advanced materials Research Center Department of Materials EngineeringNajafabad BranchIslamic Azad UniversityNajafabadIran department of materials and Metallurgical engineering Iran University of Science and TechnologyTehranIran

Magnesium(Mg)alloys are gaining great consideration as body implant materials due to their high biodegradability and ***,they suffer from low corrosion resistance and antibacterial *** this research,semi-powder metallurgy followed by hot extrusion was utilized to produce the magnesium oxide@graphene nanosheets/magnesium(MgO@GNS/Mg)composite to improve mechanical,corrosion and cytocompatibility *** have revealed that the incorporation of MgO@GNS nanohybrids into Mg-based composite enhanced microhardness and compressive *** vitro,osteoblast cell culture tests show that using MgO@GNS nanohybrid fillers enhances osteoblast adhesion and apatite *** presence of MgO@GNS nanoparticles in the composites decreased the opening defects,micro-cracks and micro-pores of the composites thus preventing the penetration of the corrosive solution into the *** demonstrated that the MgO@GNS/Mg composite possesses excellent antibacterial properties because of the combination of the release of MgO and physical damage to bacterium membranes caused by the sharp edges of graphene nanosheets that can effectively damage the cell wall thereby facilitating penetration into the bacterial lipid ***,the MgO@GNS/Mg composite with high mechanical strength,antibacterial activity and corrosion resistance is considered to be a promising material for load-bearing implant applications.

关键词： metal matrix composites MgO@GNS nanohybrid strengthening mechanisms antibacterial activity biocompatibility

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Semiconductor fibers for textile integrated electronic systems

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National science Review 2024年第6期11卷 100-101页

作者： Yuanyuan Zheng Zhen Wang Peining Chen Huisheng Peng State Key Laboratory of Molecular engineering of Polymers Department of Macromolecular ScienceInstitute of Fiber Materials and Devices and Laboratory of Advanced Materials Fudan University

Over 5000 years of development, the functions of clothing have been mainly limited in warmth and modesty. With the development of smart fibers, fabrics are anticipated to revolutionize multidisciplinary applications, ... 详细信息

关键词： Fibers