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Materials Futures 2024年第3期3卷 28-53页

作者： Huanbin Zheng Jun Zeng Xuanhong Wan Xin Song Chenxi Peng Jiarui Wang luyi sun Hui Wang Min Zhu Jun Liu School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510641People’s Republic of China

With the continuous exploration of researchers in the field of sodium-ion batteries,the performance of these batteries has been greatly improved,and they have a wide range of application prospects in large-scale energy storage,traffic power and other *** carbon is the most important anode material for sodium-ion *** it has the advantages of low cost,stable structure and performance,it still has the problems of low initial Coulombic efficiency(ICE)and poor rate performance in *** order to solve the problem of low ICE of hard carbon anode in sodium-ion batteries,in recent years the literature about hard carbon anode in sodium-ion batteries has been comprehensively *** on the microstructure of hard carbon material,the causes of low ICE of hard carbon are *** the same time,from the point of view of material structure design and regulation,the current optimization strategies of hard carbon anode ICE are summarized,including the following aspects:optimization and improvement of the carbonization process,precursor screening and design,surface coating strategy,micro-pore structure control,catalytic carbonization *** hope that this review will provide reference for further optimization of hard carbon properties and its large-scale application in sodium-ion batteries.

关键词： sodium-ion batteries anode materials hard carbon initial Coulombic efficiency

Recent progress of interface modification of layered oxide cathode material for sodium-ion batteries

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Electron 2024年第2期2卷 98-122页

作者： luyi sun Jun Zeng Xuanhong Wan Chenxi Peng Jiarui Wang Chongjia Lin Min Zhu Jun Liu Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhouChina Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and TechnologyHong KongChina

With the advantages of similar theoretical basis to lithium batteries,relatively low budget and the abundance of sodium resources,sodium ion batteries(SIBs)are recognized as the most competitive alternative to lithium-ion *** various types of cathodes for SIBs,advan-tages of high theoretical capacity,nontoxic and facile synthesis are introduced for layered transition metal oxide cathodes and therefore they have attracted huge ***,layered oxide cathodes suffer from various degradation *** these issues,interface instability including surface residues,phase transitions,loss of active transition metal and oxygen loss takes up the major part of the degra-dation of layered *** degradation mechanisms usually lead to irreversible structure collapse and cracking generation,which signifi-cantly influence the interface stability and electrochemical performance of layered *** review briefly introduces the background of researches on layered cathodes for SIBs and their basic structure *** the origins and effects on layered cathodes of degradation mech-anisms are systematically ***,we will summarize various interface modification methods including surface engineering,doping modification and electrolyte composition which are aimed to improve interface stability of layered cathodes,perspectives of future research on layered cathodes are mentioned to provide some theoretical proposals.

关键词： interface modification interface stability layered oxides sodium ion batteries surface coating

SWIR FluorescenceImaging In Vivo Monitoring and Evaluating Implanted M2 Macrophages in Skeletal Muscle Regeneration

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Engineering 2024年第2期33卷 283-294页

作者： Mo Chen Yuzhou Chen Sijia Feng Shixian Dong luyi sun Huizhu Li Fuchun Chen Nguyen Thi Kim Thanh Yunxia Li Shiyi Chen You Wang Jun Chen Sports Medicine Institute of Fudan University Department of Sports MedicineHuashan HospitalFudan UniversityShanghai 200040China Department of Bone and Joint Surgery Department of OrthopedicsRenji HospitalSchool of MedicineShanghai Jiaotong UniversityShanghai 200127China Department of Anatomy and Physiology School of MedicineShanghai Jiao Tong UniversityShanghai 200025China Key Laboratory of Infrared System Detection&Imaging Technology Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China Biophysics Group Department of Physics and AstronomyUniversity College LondonLondon WC1E 6BTUK Healthcare Biomagnetic and Nanomaterials Laboratories University College LondonLondon W1S 4BSUK

Skeletal muscle has a robust regeneration ability that is impaired by severe injury,disease,and *** in a decline in skeletal muscle ***,improving skeletal muscle regeneration is a key challenge in treating skeletal muscle-related *** to their significant role in tissue regeneration,implantation of M2 macrophages(M2MФ)has great potential for improving skeletal muscle ***,we present a short-wave infrared(SWIR)fluorescence imaging technique to obtain more in vivo information for an in-depth evaluation of the skeletal muscle regeneration effect after M2MФ*** fluorescence imaging was employed to track implanted M2MФin the injured skeletal muscle of mouse *** is found that the implanted M2MФaccumulated at the injury site for two ***,SWIR fluorescence imaging of blood vessels showed that M2MФimplantation could improve the relative perfusion ratio on day 5(1.09±0.09 vs 0.85±0.05;p=0.01)and day 9(1.38±0.16 vs 0.95±0.03;p=0.01)post-injury,as well as augment the degree of skeletal muscle regencration on day 13 ***,multiple linear regression analyses determined that post-injury time and relative perfusion ratio could be used as predictive indicators to evaluate skeletal muscle *** results provide more in vivo details about M2MФin skeletal muscle regeneration and confirm that M2MФcould promote angiogenesis and improve the degree of skeletal muscle repair,which will guide the research and development of M2MФimplantation to improve skeletal muscle regeneration.

关键词： In vivo Short-wave infrared Skeletal muscle Macrophage Regeneration

LATP固态电解质膜在准固态锂硫电池中的性能研究

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电源技术 2024年第8期48卷 1588-1594页

作者：翁海瑞王晨瑶李明娟孙陆毅李媛陈鑫智云南省磷化工节能与磷新材料重点实验室云南昆明650500 昆明理工大学化学工程学院云南昆明650500

为解决固态电解质与电极间的界面接触问题,实现锂硫电池固态化。用溶胶-凝胶法制备NASICON型Li_(1+x)Al_(x)Ti_(2−x)(PO_(4))_(3)氧化物固态电解质(LATP),用水基流延法制备固态电解质膜,将使用少量电解液润湿的LATP固态电解质膜组装成... 详细信息

为解决固态电解质与电极间的界面接触问题,实现锂硫电池固态化。用溶胶-凝胶法制备NASICON型Li_(1+x)Al_(x)Ti_(2−x)(PO_(4))_(3)氧化物固态电解质(LATP),用水基流延法制备固态电解质膜,将使用少量电解液润湿的LATP固态电解质膜组装成准固态锂硫电池。制备的LATP离子电导率为1.61×10^(−4)S/cm。在30℃下,Li对称电池可稳定循环,循环时间超过500 h。该准固态电池室温下5 C放电,放电比容量340 mAh/g。在30℃、0.1 C下,初始放电比容量1043 mAh/g,100次循环后放电比容量430 mAh/g。

关键词：锂硫电池界面修饰 Li_(1+x)Al_(x)Ti_(2−x)(PO_(4))_(3) 水基流延

Synthesis, properties, and applications of graphene oxide/reduced graphene oxide and their nanocomposites

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Nano Materials Science 2019年第1期1卷 31-47页

作者： Andrew T. Smith Anna Marie LaChance Songshan Zeng Bin Liu luyi sun Polymer Program Institute of Materials Science University of Connecticut Storrs Connecticut 06269 United States Department of Chemical and Biomolecular Engineering University of Connecticut Storrs Connecticut 06269 United States of Materials Science and Engineering Beijing University of Chemical Technology Beijing 100029 China Department of Biomedical Engineering University of Connecticut Storrs Connecticut 06269 United States

Thanks to their remarkable mechanical, electrical, thermal, and barrier properties, graphene-based nanocomposites have been a hot area of research in the past decade. Because of their simple top-down synthesis, graphene oxide (GO) and reduced graphene oxide (rGO) have opened new possibilities for gas barrier, membrane separation, and stimuli-response characteristics in nanocomposites. Herein, we review the synthesis techniques most commonly used to produce these graphene derivatives, discuss how synthesis affects their key material properties, and highlight some examples of nanocomposites with unique and impressive properties. We specifically highlight their performances in separation applications, stimuli-responsive materials, anti-corrosion coatings, and energy storage. Finally, we discuss the outlook and remaining challenges in the field of practical industrial-scale production and use of graphene-derivative-based polymer nanocomposites.

关键词： Graphene oxide Reduced graphene oxide Graphene quantum dots polymer Nanocomposites Synthesis Properties of graphene and graphene oxide Applications

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黑磷烯改性膜的制备及其锂硫电池性能

电源技术 2024年第8期48卷 1572-1579页

作者：王晨瑶翁海瑞李明娟孙陆毅杨惟韧李媛陈鑫智云南省磷化工节能与磷新材料重点实验室云南昆明650500 昆明理工大学化学工程学院云南昆明650500

锂硫电池因其高能量密度、低成本、无毒性等优点,在电池领域备受瞩目,被认为是最具有开发潜力的电池之一。但锂硫电池的应用一直受到容量衰减严重的困扰,这主要源自于多硫化物的严重穿梭效应。为解决这个问题,通过合成黑磷烯对商用聚丙... 详细信息

锂硫电池因其高能量密度、低成本、无毒性等优点,在电池领域备受瞩目,被认为是最具有开发潜力的电池之一。但锂硫电池的应用一直受到容量衰减严重的困扰,这主要源自于多硫化物的严重穿梭效应。为解决这个问题,通过合成黑磷烯对商用聚丙烯隔膜进行改性,探究黑磷烯对锂硫电池性能的影响。结果发现,黑磷烯与商用隔膜具有良好的粘附性,改性后提高了隔膜吸液率,加快了离子在电解液中的扩散,有效抑制了穿梭效应。黑磷烯改性隔膜的锂硫电池在0.05 C下的首次放电比容量可达943 mAh/g,且在0.1 C下稳定循环超过200次,电池的性能得到显著提升。

关键词：锂硫电池黑磷烯改性隔膜穿梭效应

Smart Soft Materials with Multiscale Architecture and Dynamic Surface Topographies

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Accounts of Materials Research 2022年第11期3卷 1115-1126页

作者： Songshan Zeng Andrew T.Smith Kuangyu Shen luyi sun Polymer Program Institute of Materials Science and Department of Chemical&Biomolecular EngineeringUniversity of ConnecticutStorrsConnecticut 06269United StatesPresent Address:Macao Institute of Materials Science and Engineering(MIMSE)Zhuhai MUST Science and Technology Research InstituteFaculty of Innovation EngineeringMacao University of Science and TechnologyTaipa999078MacaoChina Polymer Program Institute of Materials Science and Department of Chemical&Biomolecular EngineeringUniversity of ConnecticutStorrsConnecticut 06269United States

CONSPECTUS:Smart soft materials have one or more characteristics that can be significantly altered in convertible fashions by external stimuli,such as light,moisture,mechanical force,temperature,electric/magnetic fields,pH,and so *** materials can lead to widespread application in multifunctional smart ***,various smart soft materials have been developed under the inspiration of the intriguing multiscale structures,adaptive mechanisms,and dynamic responses of natural life,with an aim to further design advanced material systems with novel,intriguing,and unprecedented properties.

关键词： Smart properties. Dynamic

Two-dimensional MXenes:New frontier of wearable and flexible electronics

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InfoMat 2022年第4期4卷 1-28页

作者： Abbas Ahmed Sudeep Sharma Bapan Adak Md Milon Hossain Anna Marie LaChance Samrat Mukhopadhyay luyi sun Polymer Program Institute of Materials ScienceUniversity of ConnecticutStorrsConnecticutUSA Advanced Sensor and Energy Research(ASER)Lab Department of Electronic EngineeringKwangwoon UniversitySeoulSouth Korea Department of Textile and Fiber Engineering Indian Institute of TechnologyNew DelhiIndia Department of Textile Engineering Chemistry and ScienceNorth Carolina State UniversityRaleighNorth CarolinaUSA Department of Textile Engineering Khulna University of Engineering&TechnologyKhulnaBangladesh Department of Chemical and Biomolecular Engineering University of ConnecticutStorrsConnecticutUSA

Wearable electronics offer incredible benefits in mobile healthcare monitoring,sensing,portable energy harvesting and storage,human-machine interactions,etc.,due to the evolution of rigid electronics structure to flexible and stretchable ***,transition metal carbides and nitrides(MXenes)are highly regarded as a group of thriving two-dimensional nanomaterials and extraordinary building blocks for emerging flexible electronics platforms because of their excellent electrical conductivity,enriched surface functionalities,and large surface *** article reviews the most recent developments in MXene-enabled flexible electronics for wearable *** MXeneenabled electronic devices designed on a nanometric scale are highlighted by drawing attention to widely developed nonstructural attributes,including 3D configured devices,textile and planer substrates,bioinspired structures,and printed ***,the unique progress of these nanodevices is highlighted by representative applications in healthcare,energy,electromagnetic interference(EMI)shielding,and humanoid control of *** emerging prospects of MXene nanomaterials as a key frontier in nextgeneration wearable electronics are envisioned and the design challenges of these electronic systems are also discussed,followed by proposed solutions.

关键词： flexible electronics MXene nanostructures wearable electronics

右美托咪定对退行性二尖瓣关闭不全患者二尖瓣置换术后早期心率变异性的影响

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实用药物与临床 2024年第3期27卷 188-191页

作者：金春姬王镜涵孙璐怡宁玮一陈晓宇北部战区总医院麻醉科辽宁沈阳110016 北部战区总医院心血管外科辽宁沈阳110016 中国医科大学研究生院辽宁沈阳110001

目的探讨右美托咪定对行二尖瓣置换术(Mitral valve replacement,MVR)的退行性二尖瓣关闭不全患者术后心率变异性(Heart rate variability,HRV)的影响。方法回顾性分析2020-2022年北部战区总医院心血管外科择期行二尖瓣置换术的退行性... 详细信息

目的探讨右美托咪定对行二尖瓣置换术(Mitral valve replacement,MVR)的退行性二尖瓣关闭不全患者术后心率变异性(Heart rate variability,HRV)的影响。方法回顾性分析2020-2022年北部战区总医院心血管外科择期行二尖瓣置换术的退行性二尖瓣关闭不全患者的病例资料,根据右美托咪定使用情况,将患者分为对照组(未用右美托咪定,n=47)、按需给药组(使用次数≤3次,n=68)、规律给药组(使用次数≥5次,总剂量≥1000μg/ml,n=35)。分别记录三组患者术后HRV指标[正常窦性心搏RR间期标准差(Standard deviation of normal-to-normal intervals,SDNN)、24 h内每5 min正常RR间期平均值的标准差(Standard deviation of the average of normal-to-normal intervals,SDANN)、相邻RR间期差值高于50 ms的占比(Percentage of adjacent NN intervals differing by more than 50 milliseconds,PNN50)、24 h内相邻正常RR间期差值的均方根(Root mean square of successive RR-intervals differences,rMSSD)]等。结果三组患者术前PNN50、SDNN、SDANN、rMSSD比较,差异均无统计学意义(P>0.05);三组患者术后1周PNN50、rMSSD比较差异有统计学意义(P0.05)。按需给药组、规律给药组的术后1组rMSSD、PNN50均低于对照组(P<0.05),且规律给药组的术后1周rMSSD、PNN50均低于按需给药组(P<0.05)。结论二尖瓣置换术后应用右美托咪定对行性二尖瓣关闭不全患者总体心脏自主神经功能稳态影响不大;右美托咪定可使二尖瓣置换术后PNN50、rMSSD降低,按需给药组患者心脏副交感神经功能相对稳定。MVR围手术期使用右美托咪定应按需给药,以减轻患者术后疼痛,改善睡眠质量,同时减少对患者心脏迷走神经系统的不良影响。

关键词：退行性二尖瓣关闭不全二尖瓣置换术心率变异性右美托咪定

Coassembled ionic liquid/laponite hybrids as effective CO2 adsorbents

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Journal of Energy Chemistry 2017年第5期26卷 1026-1029页

作者： Yin Xu Yingjie Zhou Jingjing Liu luyi sun Department of Environmental Science and Engineering College of Environment and ResourcesXiangtan UniversityXiangtan 411105HunanChina Department of Materials Physics School of Physics and Optoelectronic EngineeringNanjing University of Information Science&TechnologyNanjing 210044JiangsuChina Department of Chemical&Biomolecular Engineering and Polymer Program Institute of Materials ScienceUniversity of Connecticut StorrsCT 06269USA

Hybrid adsorbents for COcapture were prepared by coassembling laponite（LP） nanosheets and 1-nbutyl-3-methylimidazolium chloride（BMIMCl）. The prepared BMIMCl/LP layered hybrids were systematically characterized. The interlayer distance of the BMIMCl/LP layered hybrids expanded with an increasing concentration of BMIMCl, indicating that cumulative BMIMCl was intercalated into the LP layers. The efficiency of BMIMCl toward COcapture was significantly enhanced after it was immobilized within LP layers.

关键词： CO2 capture Hybrid adsorbent Coassembly Laponite Ionic liquid