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Thermally Conductive and UV-EMI Shielding Electronic Textiles for Unrestricted and Multifaceted Health Monitoring

Nano-Micro Letters 2024年第10期16卷 149-162页

作者： Yidong Peng Jiancheng Dong Jiayan Long Yuxi Zhang xinwei Tang xi Lin Haoran Liu Tuoqi Liu Wei Fan Tianxi Liu Yunpeng Huang Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122People's Republic of China

Skin-attachable electronics have garnered considerable research attention in health monitoring and artificial intelligence domains,whereas susceptibility to elec-tromagnetic interference(EMI),heat accumulation issues,and ultraviolet(UV)-induced aging problems pose significant constraints on their potential ***,an ultra-elas-tic,highly breathable,and thermal-comfortable epidermal sensor with exceptional UV-EMI shielding performance and remarkable thermal conductivity is developed for high-fidelity monitoring of multiple human electrophysiological *** filling the elastomeric microfibers with thermally conductive boron nitride nanoparticles and bridging the insulating fiber interfaces by plating Ag nanoparticles(NPs),an interwoven thermal con-ducting fiber network(0.72 W m^(-1) K^(-1))is constructed benefiting from the seamless thermal interfaces,facilitating unimpeded heat dissipation for comfort skin *** excitingly,the elastomeric fiber substrates simultaneously achieve outstanding UV protection(UPF=143.1)and EMI shielding(SET>65,X-band)capabilities owing to the high electrical conductivity and surface plasmon resonance of Ag ***,an electronic textile prepared by printing liquid metal on the UV-EMI shielding and thermally conductive nonwoven textile is finally utilized as an advanced epidermal sensor,which succeeds in monitoring different electrophysiological signals under vigorous electromagnetic *** research paves the way for developing protective and environmentally adaptive epidermal electronics for next-generation health regulation.

关键词： Skin electronics Thermal regulating textiles Electromagnetic interference shielding Ultraviolet proof Health monitoring

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Nanostructured MXene-based materials for boosting hydrogen sorption properties of Mg/MgH_(2)

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materials Reports(Energy) 2024年第1期4卷 58-68页

作者： Yingyan Zhao Bolun Wang Li Ren Yinghui Li xi Lin Qiuyu Zhang Zhigang Hu Jianxin Zou National engineering Research Center of Light Alloys Net Forming&State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai200240PR China Shanghai engineering Research Center of Mg materials and Applications&school of materials science and engineering Shanghai Jiao Tong UniversityShanghai200240PR China Shanghai Key Laboratory of Hydrogen science&Center of Hydrogen science Shanghai Jiao Tong UniversityShanghai200240PR China

Hydrogen holds the advantages of high energy density,great natural abundance and zero emission,making it suitable for large scale and long term energy storage,while its safe and efficient storage is still *** various solid state hydrogen storage materials,MgH_(2) is promising for industrial applications due to its high gravimetric and volumetric hydrogen densities and the abundance of Mg on ***,the practical application of MgH_(2) has been limited by its stable thermodynamics and slow hydrogen desorption *** is considered as a promising approach for improving the hydrogen storage performance of MgH_(2) and bringing it closer to the requirements of commercial *** is worth mentioning that the recently emerging two-dimensional material,MXene,has showcased exceptional catalytic abilities in modifying the hydrogen storage properties of MgH_(2).Besides,MXene possesses a high surface area,excellent chemical/physical stability,and negatively charged terminating groups,making it an ideal support for the"nanoconfinement"of MgH_(2) or highly active ***,we endeavor to provide a comprehensive overview of recent investigations on MXene-based catalysts and MXene supports for improving the hydrogen sorption properties of Mg/MgH_(2).The mechanisms of hydrogen sorption involved in Mg-MXene based composites are highlighted with special emphases on thermodynamics,kinetics,and catalytic *** aim of this work is to provide a comprehensive and objective review of researches on the development of high-performance catalysts/supports to improve hydrogen storage performances of Mg/MgH_(2) and to identify the opportunities and challenges for future applications.

关键词： Magnesium-based hydride MXene Catalytic modification Nano-confinement Hydrogen storage performance

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Two-dimensional bifunctional electrocatalyst(Mo-NiFe-LDH)with multilevel structure for highly efficient overall water splitting

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Rare Metals 2024年第6期43卷 2613-2622页

作者： Bao-Jie Zhang Bin Chang Shi-Peng Qiu Gang Zhao xiao Wang xi-Jin Xu Lan Mu Wen-Bo Liao xiao-Jing Dong school of Physics and Technology University of JinanJinan 250000China KAUST Catalysis Center(KCC) King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Kingdomof SaudiArabia school of chemical engineering and Technology Tianjin UniversityTianjin 300072China school of Physics and Physical engineering Qufu Normal UniversityQufu273100China

To effectively address energy challenges,it is crucial to explore efficient and stable bifunctional nonprecious metal *** this study,a Mo-doped nickeliron layered double hydroxide with flower-cluster architecture was successfully prepared by a one-step hydrothermal method,which demonstrated a good water splitting *** an appropriate amount of Mo doping,some lattice distortions in the material provided reactive sites for the adsorption and conversion of intermediates,thus optimising the charge distribution of the ***,the multidimensional void structures formed after doping had a larger specific surface area and accelerated the penetration of the electrolyte,which significantly improved the activity of the catalyst in alkaline *** 10 mA·cm^(-2),the hydrogen and oxygen evolution overpotentials of Mo-doped nickel-iron double hydroxides(Mo-NiFe LDH/NF-0.2)were 167 and 220 mV,respectively,with an excellent durability up to 24 *** the Mo-NiFe LDH/NF-0,2 catalyst was used as the cathode and anode of an electrolytic cell,the catalyst achieved a current density of 10 mA·cm^(-2)at an applied voltage of 1.643 *** study provides a novel approach for designing excellent bifunctional electrocatalysts containing nonprecious metals.

关键词： Bifunctional electrocatalysts 2D multilevel structure Overall water splitting Mo-doped Ni-Fe LDH

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Polyoxometalates-derived ternary metal oxides electrocatalyst for N_(2) reduction under ambient conditions

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Tungsten 2024年第2期6卷 428-437页

作者： Meng-Le Yang Zhong-xin Jin xi-xian Cao xin-Ming Wang Hui-Yuan Ma Hai-Jun Pang Gui-xin Yang The school of material science and chemical engineering Harbin University of Science and TechnologyHarbin 150040China

Accelerating the breaking of the nitrogen nonpolar bond(N≡N)is an important factor to improve the effi ciency of the electro-catalytic nitrogen reduction reaction(e-NRR).In this work,polyoxometalates-derived FeMo-based ternary oxide materials MoO_(2)-Mo_(4)O_(11)-FeMoO_(4)@X(abbreviated as MoFeO@X,X represents the synthesis temperature of 650,750 and 850℃)were designed and synthesized for e-NRR under ambient *** scanning electron microscopy images of MoFeO@750 show an ellipsoidal-like structure(0.86×0.6μm).The relatively large specifi c surface area,formation of multiple interfaces,together with the synergistic eff ect of iron and molybdenum bimetals,would make MoFeO@X catalyst more easily absorb and activate N_(2)in the ***,the synthesized MoFeO@750 shows an optimal NH_(3)production rate of 16.57μg·h^(−1)·mg cat.^(−1)and Faradaic effi ciency of 12.33%at−0.3 V versus reversible hydrogen electrode(ν***),with outstanding electrochemical and structural stability.

关键词： Polyoxometalates Electrocatalytic nitrogen reduction reaction Ternary oxide Electrocatalyst

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Research on the expanding deformation of ring radius in cold profiled ring rolling process

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science china(technological sciences) 2010年第3期53卷 813-821页

作者： YANG He,LI LanYun,WANG Min&GUO LiangGang State Key Laboratory of Solidification Processing,school of material science and engineering,Northwestern Polytechnical university,xi’an 710072,china 1. State Key Laboratory of Solidification Processing School of Material Science and Engineering Northwestern Polytechnical University Xi’an 710072 China

Cold profiled ring rolling is an advanced local plastic deformation technology widely used to precisely manufacture various complex seamless ring *** plays an important role in many industrial fields such as aeronautics,astronautics,automobile,bearings,*** the cold ring rolling process,the ring radius expands gradually with the increase of the feeding amount(*** reduction),and the expanding deformation of the ring radius is closely related to the rolling *** is very important to investigate the expanding deformation of ring radius for the precise control of ring dimensions and the design of feeding *** this paper,the relation between the expanding deformation of the ring radius and the rolling reduction in the stepped ring rolling process,a typical profiled ring rolling process,is analyzed by using analytical *** results show that the growth amount of the filling depth of groove can't exceed the rolling reduction,that in the inner stepped ring rolling process,the curves of the outer radius and big inner radius with the rolling reduction are monotonous,ascending and concave,i.e.,the outer radius and big inner radius expand faster and faster with the increase of the rolling reduction,and that in the outer stepped ring rolling process,the curves of the inner radius and small outer radius with the rolling reduction are also monotonous,ascending and concave,i.e.,the inner radius and small outer radius expand faster and faster with the increase of the roll reduction.

关键词： cold ring rolling inner stepped ring outer stepped ring rolling reduction expanding deformation of ring radius

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Ultra-high-rate Bi anode encapsulated in 3D lignin-derived carbon framework for sodium-ion hybrid capacitors

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Rare Metals 2024年第3期43卷 1037-1047页

作者： Ze-Hua Lin Xue-Qing Qiu xi-Hong Zu xiao-Shan Zhang Lei Zhong Shi-Rong Sun Shu-Hua Hao Ying-Juan Sun Wen-Li Zhang school of chemical engineering and Light Industry Guangdong University of Technology(GDUT)Guangzhou510006China Jieyang Branch of Chemistry and chemical engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang515200China school of Advanced Manufacturing Institute of Green Chemistry and Advanced MaterialsGuangdong University of TechnologyJieyang515200China

Bismuth(Bi),as an alloy-based anode material,has attracted much atte ntion in the developme nt of sodiumion hybrid capacitors(SIHCs)due to its high theoretical ***,the volume expansion of the Bi-based anode during the sodiation/desodiation process results in limited rate *** the present work,a porous Bi-based composite was constructed by a one-step hydrothermal method,and Bi was encapsulated in ligninderived nitrogen-doped porous carbon(Bi@LNPC)after *** obtained Bi nanoparticles could effectively adapt to the strain and shorten the diffusion distance of Na^(+).In addition,porous carbon skeleton provides a rigid conductive network for electronic ***,the assembled sodium-ion half-cell with Bi@LNPC anode shows ultra-high-rate *** the current density was enhanced from 0.1 to 50 A·g^(-1),the specific capacity decreased slightly from 351.5 to 342.8 mAh·g^(-1).Even at an extremely high current density of 200 A·g^(-1),it retains 81.3%capacity retention when compared to a current density of 1 A·g^(-1).The SIHCs assembled by Bi@LNPC show a high energy density of 63 Wh·kg^(-1).This work provides an effective method for developing high-rate Bi anode materials for sodium-ion hybrid capacitors(SIHCs)and sodium-ion batteries(SIBs).

关键词： Bismuth Lignin Sodium-ion batteries Sodium-ion hybrid capacitors Rate Porous carbon

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Surface plasmon decorated InGaO deep-UV photodetector array for image sensing and water quality monitoring via highly effective hot electron excitation and interfacial injection

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science china(technological sciences) 2024年第8期67卷 2449-2460页

作者： SHU LinCong SHA ShuLin xi ZhaoYing LI Lei YAO SuHao ZHANG JiaHan JI XueQiang ZHANG ShaoHui BIAN Ang JIANG MingMing GUO YuFeng TANG WeiHua LIU Zeng Innovation Center of Gallium Oxide Semiconductor(IC-GAO) College of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023China school of Electronic Information engineering Inner Mongolia UniversityHohhot 010021China College of science MIIT Key Laboratory of Aerospace Information Materials and PhysicsNanjing University of Aeronautics and AstronauticsNanjing 211106China Collaborative Innovation Center of Advanced Microstructures School of Electronic Science and EngineeringNanjing UniversityNanjing 210093China Institute of Biological and Medical engineering Guangdong Academy of SciencesGuangzhou 510316China school of science Jiangsu University of Science and TechnologyZhenjiang 212100China school of Integrated Circuits Beijing University of Posts and TelecommunicationsBeijing 100876China

In addition to the plasmon-mediated resonant coupling mechanism,the excitation of hot electron induced by plasmon presents a promising path for developing high-performance optoelectronic devices tailored for various *** study introduces a sophisticated design for a solar-blind ultraviolet(UV)detector array using linear In-doped Ga_(2)O_(3) (InGaO)modulated by platinum(Pt)nanoparticles(PtNPs).The construction of this array involves depositing a thin film of Ga_(2)O_(3) through the plasmonenhanced chemical vapor deposition(PECVD)***,PtNPs were synthesized via radio-frequency magnetron sputtering and annealing *** performance of these highly uniform arrays is significantly enhanced owing to the generation of high-energy hot *** process is facilitated by non-radiative decay processes induced by ***,the array achieves maximum responsivity(R)of 353 mA/W,external quantum efficiency(EQE)of 173%,detectivity(D*)of approximately 10~(13)Jones,and photoconductive gain of *** addition,the standard deviation for photocurrent stays below17%for more than 80%of the array units within the ***,the application of this array extends to photon detection in the deep-UV(DUV)*** includes critical areas such as imaging sensing and water quality *** leveraging surface plasmon coupling,the array achieves high-performance DUV photon *** approach enables a broad spectrum of practical applications,underscoring the significant potential of this technology for the advancement of DUV detectors.

关键词： InGaO PECVD surface plasmon solar-blind UV photodetector array optoelectronic applications

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Reverse extraction of early-age hydration kinetic equation from observed data of Portland cement

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science china(technological sciences) 2010年第6期53卷 1540-1553页

作者： WANG Lin1,YANG Bo2,ZHAO xiuYang1,2,CHEN YueHui2 & CHANG Jun3 1 school of Computer science and Technology,Shandong university,Jinan 250101,china 2 Provincial Key Laboratory for Network-based Intelligent Computing,university of Jinan,Jinan 250022,china 3 school of material science and engineering,university of Jinan,Jinan 250022,china 1. school of Computer science and Technology Shandong University Jinan 250101 China2. Provincial Key Laboratory for Network-based Intelligent Computing University of Jinan Jinan 250022 China3. School of Material Science and Engineering University of Jinan Jinan 250022 China

The early-age hydration of Portland cement paste has an important impact on the formation of microstructure and development of ***,manual derivation of hydration kinetic equation is very difficult because there are multi-phased,multi-sized and interrelated complex chemical and physical reactions during cement *** this paper,early-age hydration kinetic equation is reversely extracted automatically from the observed time series of hydration degree of Portland cement using evolutionary computation method that combines gene expression programming and particle swarm optimization *** order to reduce the computing time,GPUs are used for acceleration in *** have shown that according to the extracted kinetic equation,simulation curve of early-age hydration is in good accordance with the observed experimental ***,this equation still has a good generalization ability even changing chemical composition,particle size and curing conditions.

关键词： Portland cement hydration kinetic equation reverse extraction gene expression programming particle swarm optimization

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Functional decoration on a regenerable bifunctional porous covalent organic framework probe for rapid detection and adsorption of copper ions

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Rare Metals 2024年第2期43卷 758-769页

作者： Yu-Long Li xi-Lang Jin Yi-Ting Ma Jing-Rui Liu Fazal Raziq Peng-Yuan Zhu Zhi-Feng Deng Hong-Wei Zhou Wei-xing Chen Wen-Huan Huang school of materials and chemical engineering Xi’an Technological UniversityXi’an710021China Yulin Boyi-Jingking Research Institute of Industrial Technology Development Research Yulin719054China KAUST Catalysis Center King Abdullah University of Science and Technology23955-6900ThuwalKingdom of Saudi Arabia Key Laboratory of chemical Additives for china National Light Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and TechnologyXi’an710021China National and Local Joint engineering Laboratory for Slag Comprehensive Utilization and Environmental Technology School of Materials Science and EngineeringShaanxi University of TechnologyHanzhong723001China

Developing fluorescence porous probe for detecting and eliminating Cu^(2+) contamination in water or biosystem is an essential research project that has attracted considerable ***,improving the fluorescence detecting efficiency while enhancing the adsorption capacity of the porous probe is of great ***,a bifunctional two-dimensional imine-based porous covalent organic framework(TTP-COF)probe was designed and synthesized from 1,3,5-tris(4-aminophenyl)benzene(TAPB)and 2,4,6-Triformylphloroglucinol(TP)***-COF displayed rapid detection of Cu^(2+)(limit of detection(LOD)=10 nmol·L^(−1) while achieving a high adsorption capacity of 214 mg·g^(−1)(pH=6)at room temperature with high reusability(>5 cycles).The key roles and contributions of highπ-conjugate and delocalized electrons in TABP and functional–OH groups in TP were *** importantly,the fluorescence quenching mechanism of TTP-COF was studied by density functional theory theoretical calculations,revealing the crucial role of intramolecular hydrogen bonds among C=N and–OH groups and the blocking of the excited state intramolecular proton transfer process in detecting process of Cu^(2+).

关键词： Covalent organic framework(COF) Excited-state intramolecular proton transfer(ESIPT) Copper ion detection Copper ion adsorption Renewability

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Review on abort trajectory for manned lunar landing mission

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science china(technological sciences) 2010年第10期53卷 2691-2698页

作者： xi xiaoNing1, HUANG WenDe2 & WANG Wei2,3 1 College of Mechatronics engineering and Automation, National university of Defense Technology, Changsha 410073, china 2 College of Aerospace and material engineering, National university of Defense Technology, Changsha 410073, china 3 school of Surveying and Spatial Information System, university of New South Wales, Sydney, NSW 2052, Australia 1. College of Mechatronics engineering and Automation National University of Defense Technology Changsha 410073 China2. College of Aerospace and Material Engineering National University of Defense Technology Changsha 410073 China3. School of Surveying and Spatial Information System University of New South Wales Sydney NSW 2052 Australia

Abort trajectory is a passage that ensures the astronauts to return safely to the earth when an emergency occurs. Firstly,the essential elements of mission abort are analyzed entirely based on summarizing the existing studies. Then,abort trajectory requirement and rational selection for different flight phases of typical manned lunar mission are discussed specifically. Considering a trade-off between the two primary constrains of an abort,the return time of flight and energy requirement,a general optimizing method for mission abort is proposed. Finally,some suggestions are given for china’s future manned lunar landing mission.

关键词： manned lunar landing mission abort trajectory design free return trajectory

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