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Redox-active conjugated microporous polymers as electron-accepting organic pseudocapacitor electrode materials for flexible energy storage

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Science China Chemistry 2022年第9期65卷 1767-1774页

作者： xu Liu Gengzhi Sun Yujiao Gong Cheng-Fang Liu Shi Wang shihao xu xuanli Yang Lei Yang Wen-Yong Lai State Key Laboratory of Organic Electronics and Information Displays Institute of Advanced MaterialsNanjing University of Posts&TelecommunicationsNanjing 210023China Key Laboratory of Flexible Electronics&Institute of Advanced Materials Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech UniversityNanjing 211816China Frontiers Science Center for Flexible Electronics Key Laboratory of Flexible Electronics of Ministry of Industry and Information TechnologyNorthwestern Polytechnical UniversityXi’an 710072China

Efficient energy storage devices,***,are being intensively pursued to address the environmental and energy *** high-performance pseudocapacitors are based on inorganic materials,while organic materials with broader synthetic tunability have attracted increasing *** recent progress,electron-deficient(n-type)organic pseudocapacitive materials for flexible energy storage are highly demanded yet remain largely *** a novel set of n-type perylene diimide(PDI)based conjugated microporous polymers(CMPs),namely,CMP-1,CMP-2 and CMP-3,have been created to integrate excellent desirable characteristics as organic pseudocapacitor electrode materials for flexible energy *** light of electron-accepting redox-active sites,hierarchically porous structures,as well as amide-linked networks,the PDI-CMPs electrodes displayed n-type pseudocapacitive behaviors with high capacity(139-205 F g^(-1)at 0.5 A g^(-1)),wide and negative biases(-1.0 to 0 V ***/AgCl),and long cycling ***-3 consisting of tetraphenylmethane three-dimensional(3D)building block and PDI units demonstrates not only higher capacitance but also better performance stability because of the higher specific surface area and faster diffusion kinetics as compared to its counterpart *** supercapacitors(SCs)based on CMP-3 and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)(PEDOT/PSS)exhibited wider potential window(1.8 V)and higher capacitance(17.4 m F cm^(-2))compared with symmetric SCs based on PEDOT/PSS ***,CMP-3 also demonstrates attractive potentials as the anode for rechargeable Li-ion *** study sheds light on the fundamental understanding of the key structural parameters that determine their electrochemical and transport properties,thus opening a new door for the rational design of efficient and stable n-type organic electrode materials for flexible energy storage applications.

关键词： flexible energy storage organic pseudocapacitors conjugated microporous polymers n-type electrode materials supercapacitors

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Comparative evaluation of SPE methods for biotoxicity assessment of water and wastewater:Linkage between chemical extracting efficiency and biotoxicity outcome

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Journal of Environmental Sciences 2024年第8期142卷 33-42页

作者： Jiawei Zhou shihao Wang Xiwei He Hongqiang Ren xu-Xiang Zhang State Key Laboratory of Pollution Control and Resource Reuse School of EnvironmentNanjing UniversityNanjing 210023China

Biotoxicity assessment results of environmental waters largely depend on the sample extraction protocols that enrich pollutants to meet the effect-trigger thresholds of ***,more chemical mixture does not necessarily translate to higher combined ***,there is a need to establish the link between chemical extracting efficiency and biotoxicity outcome to standardize extraction methods for biotoxicity assessment of environmental *** study compares the performance of five different extraction phases in solid phase extraction(SPE),namely HLB,HLB+Coconut,C18 cartridge,C18 disk and Strata-X,and evaluated their chemical extracting efficiencies and biotoxicity *** quantitatively assessed cytotoxicity,acute toxicity,genotoxicity,estrogenic activity,and neurotoxicity of the extracts using in vitro bioassays and characterized the chemical extracting efficiencies of the SPE methods through chemical recoveries of 23 model compounds with different polarities and total organic *** Pareto ranking,we identified HLB+Coconut as the optimal SPE method,which exhibited the highest level of water sample biotoxicity and recovered the most chemicals in water *** found that the biotoxicity outcomes of the extracted water samples significantly and positively correlated with the chemical extracting efficiencies of the SPE ***,we observed synchronous changing patterns in biotoxicity outcome and chemical extracting efficiencies in response to increasing sample volumes per cartridge(SVPC)during *** findings underscore that higher chemical extracting efficiency of SPE corresponds to higher biotoxicity outcome of environmental water samples,providing a scientific basis for standardization of SPE methods for adequate assessment of biotoxicities of environmental waters.

关键词： Biotoxicity Chemical recovery Solid phase extraction Surface water Wastewater

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Three-dimensional constrained gravity inversion of Moho depth and crustal structural characteristics at Mozambique continental margin

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Acta Oceanologica Sinica 2024年第2期43卷 120-129页

作者： shihao Yang Zhaocai Wu Yinxia Fang Mingju xu Jialing Zhang Fanlin Yang College of Geodesy and Geomatics Shandong University of Science and TechnologyQingdao 266590China Key Laboratory of Submarine Geoscience Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China School of Geomatics and Municipal Engineering Zhejiang University of Water Resources and Electric PowerHangzhou 310018China Ocean College Zhejiang UniversityZhoushan 316021China

Mozambique's continental margin in East Africa was formed during the break-off stage of the east and west Gondwana lands. Studying the geological structure and division of continent-ocean boundary(COB) in Mozambique's continental margin is considered of great significance to rebuild Gondwana land and understand its movement mode. Along these lines, in this work, the initial Moho was fit using the known Moho depth from reflection seismic profiles, and a 3D multi-point constrained gravity inversion was carried out. Thus, highaccuracy Moho depth and crustal thickness in the study area were acquired. According to the crustal structure distribution based on the inversion results, the continental crust at the narrowest position of the Mozambique Channel was detected. According to the analysis of the crustal thickness, the Mozambique ridge is generally oceanic crust and the COB of the whole Mozambique continental margin is divided.

关键词： 3D constrained gravity inversion continent-ocean boundary Mozambique continental margin Moho depth

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果胶污泥的基质化开发及其在育苗中的应用

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浙江农业科学 2024年第1期65卷 103-107页

作者：叶楠王翘楚徐世豪于建兴洪基光李加友嘉兴学院生物与化学工程学院浙江嘉兴314001 象山华宇食品有限公司浙江宁波315700

柑橘罐头加工产生大量果胶污泥,利用高效菌株的快速腐解将果胶污泥转化成栽培基质,实现高持水难处理果胶污泥的资源化利用。结果表明,筛选的康宁木霉(Trichoderma koningii)LZ51果胶酶活性达684 U·mL^(-1);将果胶污泥分别和秸秆、蛭石... 详细信息

柑橘罐头加工产生大量果胶污泥,利用高效菌株的快速腐解将果胶污泥转化成栽培基质,实现高持水难处理果胶污泥的资源化利用。结果表明,筛选的康宁木霉(Trichoderma koningii)LZ51果胶酶活性达684 U·mL^(-1);将果胶污泥分别和秸秆、蛭石混合发酵制得秸秆果胶基质(M1)、蛭石果胶基质(M2),在红樱桃萝卜、大叶菠菜和四季香葱发芽和育苗过程中发现,M1和M2的使用性能较蛭石基质(CK)均有显著提升。其中,M1对3种蔬菜的发芽率较CK平均提升5%;在育苗阶段,M1培育的樱桃红萝卜鲜重较CK增加30%,培育的大叶菠菜鲜重较CK增加50%。利用果胶污泥和秸秆混合发酵制备一种新型栽培基质,为罐头加工的果胶污泥资源化利用开辟一条新的利用途径,市场前景广阔。

关键词：果胶污泥基质发酵果胶降解菌育苗

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Combatting Pathogenic Bacteria with Synthetic Immunotherapeutics from Chitosan:Antibody Recruiting at Engineered Bacterial Surface with Peptidoglycan Analogs

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CCS Chemistry 2024年第6期6卷 1448-1457页

作者： Yuan xu shihao Song Hongwei Duan Yinyue Deng xue-Wei Liu School of Chemistry Chemical Engineering and BiotechnologyNanyang Technological UniversitySingapore 637371 Key Laboratory of Tropical Biological Resources of Ministry of Education School of Pharmaceutical SciencesHainan UniversityHaikou 570228 School of Pharmaceutical Sciences(Shenzhen) Shenzhen Campus of Sun Yat-sen UniversitySun Yat-sen UniversityShenzhen 518107

The emergence of microbial drug resistance,coupled with the paucity of new antibiotics poses an impending threat to public *** this work,we drew inspiration from synthetic peptidoglycan oligomers and successfully constructed antibody-recruiting peptidoglycan analogs,2a-d,with excellent safety profiles and high efficiencies in recruiting antibodies across different ***,we demonstrated that these peptidoglycan analogs could be readily incorporated into bacteria cell walls,whereby both simple monoclonal and pooled human serum antibodies effectively congregated to the surfaceengineered bacteria,leading to the complete extermination of the engineered bacterial cells both in vitro and in *** peptidoglycan analog agents for recruiting endogenous antibodies to combat pathogenic bacteria enable further development of promising broad-spectrum immunotherapeutics.

关键词： chitosan bacterial infection endogenous antibodies bacterial surface engineering peptidoglycan analogs

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中药复方颗粒穴位贴敷辅助治疗儿童细菌性肺炎的效果

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临床医学研究与实践 2024年第20期9卷 88-91页

作者：唐彬宗寿洋马海梅闫雷郭鹏李静静徐士浩金湖县人民医院江苏淮安211600 淮安市第一人民医院江苏淮安223300

目的探讨中药复方颗粒穴位贴敷辅助治疗儿童细菌性肺炎的效果。方法选取2023年1月至7月收治的80例细菌性肺炎患儿为研究对象,按照随机数字表法将其分为对照组(n=40)和观察组(n=40),并依据症状严重程度将观察组分为重症组(n=23)和轻症组(... 详细信息

目的探讨中药复方颗粒穴位贴敷辅助治疗儿童细菌性肺炎的效果。方法选取2023年1月至7月收治的80例细菌性肺炎患儿为研究对象,按照随机数字表法将其分为对照组(n=40)和观察组(n=40),并依据症状严重程度将观察组分为重症组(n=23)和轻症组(n=17)。对照组采用头孢曲松钠治疗,观察组在对照组基础上加用中药复方颗粒穴位贴敷辅助治疗。比较对照组与观察组的治疗效果及重症组与轻症组的感染性指标水平。结果治疗后,观察组的中性粒细胞CD64(nCD64)、降钙素原(PCT)水平低于对照组(P0.05)。治疗后,观察组的白细胞介素-6(IL-6)、白细胞介素-10(IL-10)及干扰素-γ(IFN-γ)水平低于对照组(P0.05)。结论中药复方颗粒穴位贴敷治疗儿童细菌性肺炎的临床效果较佳。

关键词：中药复方颗粒穴位贴敷儿童细菌性肺炎

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Highly transparent anti-reflection coating enhances the underwater efficiency and stability of perovskite solar modules

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Nano Research 2024年第9期17卷 8126-8133页

作者： Feng Qian shihao Yuan Ting Zhang Lei Wang Xiaobo Li Hualin Zheng Qien xu Zhi David Chen Shibin Li School of Optoelectronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu 610054China Department of Electrical and Computer Engineering and Center for Nanoscale Science and Engineering University of KentuckyLexingtonKentucky 40506USA

Perovskite solar cells have shown great potential in the field of underwater solar cells due to their excellent optoelectronic properties;however,their underwater performance and stability still hinder their practical *** this research,a 1H,1H,2H,2H-heptadecafluorodecyl acrylate(HFDA)anti-reflection coating(ARC)was introduced as a high-transparent material for encapsulating perovskite solar modules(PSMs).Optical characterization results revealed that HFDA can effectively reduce reflection of light below 800 nm,aiding in the absorption of light within this wavelength range by underwater solar ***,a remarkable efficiency of 14.65%was achieved even at a water depth of 50 ***,the concentration of Pb^(2+)for HFDA-encapsulated film is significantly reduced from 186 to 16.5 ppb after being immersed in water for 347 ***,the encapsulated PSMs still remained above 80%of their initial efficiency after continuous underwater illumination for 400 ***,being exposed to air,the encapsulated PSMs maintained 94%of their original efficiency after 1000 h light *** highly transparent ARC shows great potentials in enhancing the stability of perovskite devices,applicable not only to underwater cells but also extendable to land-based photovoltaic devices.

关键词： underwater photovoltaics perovskite solar modules anti-reflection coating underwater stability

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Microstructural evolution,mechanical properties and corrosion behavior of as-cast Mg-5Li-3Al-2Zn alloy with different Sn and Y addition

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Journal of Materials Science & Technology 2021年第13期72卷 16-22页

作者： Xiang Peng shihao xu Dehua Ding Guanglan Liao Guohua Wu Wencai Liu Wenjiang Ding Ding National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Influences of Sn and Y on the microstructure,mechanical properties,and corrosion behavior of as-cast Mg-5 Li-3 Al-2 Zn(LAZ532)alloy were *** addition of Sn and Y refines grains and results in the formation of Mg2 Sn and Al2 Y phases,thus improving the mechanical properties of alloy by second phase strengthening and grain refinement ***-cast LAZ532 alloy shows typical filiform corrosion morphology,and the addition of Sn and Y does not change the corrosion mode of *** LAZ532-0.8 Sn-1.2 Y alloy shows excellent mechanical properties with yield strength of 166.2 MPa,ultimate tensile strength of 228.6 MPa and elongation of 14.8%,and exhibits the best corrosion resistance with the smallest corrosion current density and the lowest anodic dissolution rate.

关键词： Mg-Li alloy Sn Y Mechanical properties Corrosion behavior

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A multifunctional flexible sensor based on PI-MXene/SrTiO_(3) hybrid aerogel for tactile perception

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The Innovation 2024年第3期5卷 44-54页

作者： shihao Deng Yue Li Shengzhao Li Shen Yuan Hao Zhu Ju Bai Jingyi xu Lu Peng Tie Li Ting Zhang Nano Science and Technology Institute University of Science and Technology of China(USTC)Suzhou 215123China i-lab Nano-X Vacuum Interconnected WorkstationKey Laboratory of Multifunctional Nanomaterials and Smart SystemsSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)Suzhou 215123China School of Nano-Tech and Nano-Bionics University of Science and Technology of China(USTC)Hefei 230026China Jiangxi Institute of Nanotechnology 278 Luozhu RoadXiaolan Economic and Technological Development ZoneNanchang 330200China

The inadequacy of tactile perception systems in humanoid robotic manipulators limits the breadth of available robotic ***,we designed a multifunctional flexible tactile sensor for robotic fingers that provides capabilities similar to those of human skin sensing *** sensor utilizes a novel PI-MXene/SrTiO_(3) hybrid aerogel developed as a sensing unit with the additional abilities of electromagnetic transmission and thermal insulation to adapt to certain complex ***,polyimide(PI)provides a high-strength skeleton,MXene realizes a pressure-sensing function,and MXene/SrTiO_(3) achieves both thermoelectric and infrared radiation response ***,via the pressure response mechanism and unsteady-state heat transfer,these aerogel-derived flexible sensors realize multimodal sensing and recognition capabilities with minimal *** can differentiate among 13 types of hardness and four types of material from objects with accuracies of 94%and 85%,respectively,using a decision tree *** addition,based on the infrared radiation-sensing function,a sensory array was assembled,and different shapes of objects were successfully *** findings demonstrate that this PI-MXene/SrTiO_(3) aerogel provides a new concept for expanding the multifunctionality of flexible sensors such that the manipulator can more closely reach the tactile level of the human *** advancement reduces the difficulty of integrating humanoid robots and provides a new breadth of application scenarios for their possibility.

关键词： utilize integrating insulation

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新民主主义革命时期中国共产党自我净化党内政治生态的经验探析

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思想教育研究 2023年第2期 107-112页

作者：程美东徐世豪北京大学马克思主义学院北京100091

运用自我净化手段营造风清气正的党内政治生态,是中国共产党百年来党内建设的重要着力点。新民主主义革命时期,中国共产党在长期自我净化实践中摸索出一套行之有效的机制和方法,为党内政治生态建设积累了宝贵的历史经验。当前反腐败斗... 详细信息

运用自我净化手段营造风清气正的党内政治生态,是中国共产党百年来党内建设的重要着力点。新民主主义革命时期,中国共产党在长期自我净化实践中摸索出一套行之有效的机制和方法,为党内政治生态建设积累了宝贵的历史经验。当前反腐败斗争形势不容乐观,党内政治生态建设应坚持问题导向,在新的出发点上统筹各要素协调运作,加强党内政治文化建设,以健全的党内监督体系作为抓手全面提高自我净化能力,推进新时代党的建设新的伟大工程。

关键词：中国共产党党内政治生态自我净化历程启示

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