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Advanced Fiber Materials for Wearable Electronics

Advanced Fiber Materials 2023年第1期5卷 12-35页

作者： Chuang Zhu Jiawei Wu Jianhua Yan Xuqing Liu Department of Materials School of Natural SciencesUniversity of ManchesterOxford RdManchester M139PLUK Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai 201620People’s Republic of China

Fiber materials are highly desirable for wearable electronics that are expected to be flexible and *** with rigid and planar electronic devices,fiber-based wearable electronics provide significant advantages in terms of flexibility,stretchability and breathability,and they are considered as the pioneers in the new generation of soft *** con-vergence of textile science,electronic engineering and nanotechnology has made it feasible to build electronic functions on fibers and maintain them during *** the last few years,fiber-shaped wearable electronics with desired designability and integration features have been intensively explored and *** an indispensable part and cornerstone of flexible wearable devices,fibers are of great ***,the research progress of advanced fiber materials is reviewed,which mainly includes various material preparations,fabrication technologies and representative studies on different wearable ***,key challenges and future directions of fiber materials and wearable electronics are examined along with an analysis of possible solutions.

关键词： Conductive fibers Piezoelectric fibers Sensors Artificial muscles Energy harvesting and storage

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Adsorption performance and physicochemical mechanism of MnO_(2)-polyethylenimine-tannic acid composites for the removal of Cu(Ⅱ) and Cr(Ⅵ) from aqueous solution

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Frontiers of Chemical science and Engineering 2021年第3期15卷 538-551页

作者： Xiaoyan Deng Luxing Wang Qihui Xiu Ying Wang Hong Han Dongmei Dai Yongji Xu Hongtao Gao Xien Liu College of Environment and Safety Engineering State Key Laboratory Base of Eco-Chemical EngineeringQingdao University of Science&TechnologyQingdao 266042China College of Chemistry and Molecular Engineering State Key Laboratory Base of Eco-Chemical EngineeringQingdao University of Science&TechnologyQingdao 266042China

In this work,an adsorbent,which we call MnPT,was prepared by combining MnO_(2),polyethylenimine and tannic acid,and exhibited efficient performance for Cu(Ⅱ) and Cr(VI) removal from aqueous *** oxygen/nitrogen-containing functional groups on the surface of MnPT might increase the enrichment of metal ions by *** maximum adsorption capacities of MnPT for Cu(Ⅱ) and Cr(Ⅵ) were 121.5 and 790.2 mg·g^(-1),*** surface complexation formation model was used to elucidate the physicochemical interplay in the process of Cu(Ⅱ) and Cr(Ⅵ) co-adsorption on *** force,solvation action,adsorbate-adsorbate lateral interaction,and complexation were involved in the spontaneous adsorption *** electrostatic action was dominant in the initial stage,whereas chemical action was the driving force leading to adsorption *** should be noted that after adsorption on the surface of MnPT,Cr(Ⅵ) reacted with some reducing functional groups(hydroxylamine-NH_(2))and was converted into Cr(Ⅲ).The adsorption capacity declined by 12% after recycling five *** the adsorption mechanism might provide a technical basis for the procedural design of heavy metal *** MnPT nanocomposite has been proven to be a low-cost,efficient,and promising adsorbent for removing heavy metal ions from wastewater.

关键词： MnO_(2)-polyethylenimine-tannic acid composite surface complexation formation model Cu(Ⅱ) Cr(Ⅵ) physicochemical mechanism

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Preheat Compression Molding for Polyetherketoneketone: Effect of Molecular Mobility

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Chinese Journal of Polymer science 2022年第2期40卷 175-184页

作者： Xiao-Hua Zhang Meng-Xiao Jiao Xin Wang Bo-Lan Li Feng Zhang Yan-Bo Li Jing-Na Zhao He-Hua Jin Yu Yang Key Laboratory of Textile Science&Technology(Ministry of Education) College of Textilesand Innovation Center for Textile Science and TechnologyDonghua UniversityShanghai201620China Advanced Materials Division Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China Key Laboratory of Carbon Materials National Engineering Laboratory for Carbon Fiber TechnologyInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China

Polyetherketoneketone(PEKK)is a new evolving polymeric material,and is considered as another important member of the polyaryletherketone(PAEK)family in addition to polyetheretherketone(PEEK).Hot compression molding can be used to compact and consolidate the PEKK products,where the temperature and pressure play key roles to affect the molecular mobility,entanglement and crystallization,and thus the mechanical properties of *** this study,a preheating treatment was introduced in the compression molding,and it is found that such preheating is very essential to avoid the formation of crystal FormⅡ,based on the increased chain *** dynamics simulations revealed that the molecular mobility is always suppressed when a compression is ***,by increasing the entanglement via the preheating and maintaining such entanglement in the consequent compression molding,strong and tough PEKK materials were obtained,with a negligible fraction of crystal FormⅡ.

关键词： Polyetherketoneketone Molecular mobility Compression molding Mechanical properties

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β-Pb_(3)P_(2)S_(8):A new optical crystal with exceptional birefringence effect

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Chinese Chemical Letters 2025年第2期36卷 486-489页

作者： Weiping Guo Ying Zhu Hong-Hua Cui Lingyun Li Yan Yu Zhong-Zhen Luo Zhigang Zou Key Laboratory of Eco-materials Advanced Technology Key Laboratory of Advanced Materials Technologies International(HongKong Macao and Taiwan)Joint Laboratory on Advanced Materials TechnologiesCollege of Materials Science and EngineeringFuzhou UniversityFuzhou 350108China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China Mechanical and Electrical Engineering Practice Center Fuzhou UniversityFuzhou 350108China Eco-materials and Renewable Energy Research Center College of Engineering and Applied SciencesNanjing UniversityNanjing 210093China

Birefringent crystals play an irreplaceable role in optical systems by adjusting the polarization state of light in optical *** work successfully synthesized a new thiophosphate phase ofβ-Pb_(3)P_(2)S_(8)through the high-temperature solid-state spontaneous crystallization *** from the cubicα-Pb_(3)P_(2)S_(8),theβ-Pb_(3)P_(2)S_(8)crystallizes in the orthorhombic Pbcn space ***,β-Pb_(3)P_(2)S_(8)shows a large band gap of 2.37 e V in lead-based chalcogenides,wide infrared transparent window(2.5-15μm),and excellent thermal ***,the experimental birefringence shows the largest value of0.26@550 nm in chalcogenides,even larger than the commercialized oxide *** Barder charge analysis result indicates that the exceptional birefringence effect is mainly from the Pb^(2+)and S^(2-)in the[Pb S_n]***,the parallelly arranged polyhedral layers could improve the structural ***,this work supports a new method for designing chalcogenides with exceptional birefringence effect in the infrared region.

关键词： Birefringent crystals Optical properties Chalcogenides β-Pb3P2S8 Structural anisotropic

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Quantifying the contribution of activity patterns to PM_(2.5)exposure inequity between urban and rural residents by a novel method

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Building Simulation 2024年第8期17卷 1323-1333页

作者： Wei Du Zhanpeng Cui Jinze Wang Yuqiong Wang Yungui Li Xiaoan Li Yan Zhou Tao Jiang Kang Mao Xianbiao Lin Jianwu Shi Dengzhou Gao Yiming Qin Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control Faculty of Environmental Science&EngineeringKunming University of Science&TechnologyKunming 650500China Laboratory of Earth Surface Processes College of Urban and Environmental SciencesPeking UniversityBeijing 100871China Department of Environmental Engineering Southwest University of Science and TechnologyMianyang 621010China NHC Key Laboratory of Nuclear Technology Medical Transformation Mianyang Central HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaMianyang 621000China State Key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China Key Laboratory of Marine Chemistry Theory and Technology Ministry of EducationOcean University of ChinaQingdao266100China Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education School of Geographical SciencesFujian NormalUniversityFuzhou350117China School of Energy and Environment City University of Hong KongHong KongChina

PM_(2.5)pollution variations in different microenvironments would result in PM_(2.5)exposure inequity between rural and urban *** this study,the real-time PM_(2.5)exposure of urban and rural residents in China was examined based on portable PM_(2.5)sensors together with activity patterns derived from questionnaire surveys,with a focus on students and senior citizens who are sensitive to air *** results showed that PM_(2.5)exposure varied significantly among different resident groups,with higher PM_(2.5)exposure of rural residents than those of urban ***_(2.5)exposure peaks mostly occurred during(Accompanied)cooking activities owing to strong *** and resting were the main activities that affected PM_(2.5)exposures of different resident groups,accounting for 60.7%-94.5%of total daily ***,the long duration of sleeping makes it the predominant activity contributing to PM 25 exposure *** is necessary to obtain point-to-point respiratory volume(respiratory rate)data when measuring real-time PM_(2.5)exposure data and incorporate respiratory volume(respiratory rate)into the analysis of PM_(2.5)*** the first time,this study quantified the PM_(2.5)exposure inequality based on a novel method and can provide useful information for further studies on the exposure inequity.

关键词： PM_(2.5)exposure environmental inequity activity pattern urban and rural difference

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Emerging design principles,materials,and applications for moisture-enabled electric generation

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escience 2022年第1期2卷 32-46页

作者： Zhaoyang Sun Xian Wen Liming Wang Dongxiao Ji Xiaohong Qin Jianyong Yu Seeram Ramakrishna Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai201620China Department of Mechanical Engineering National University of Singapore117574Singapore Innovation Center for Textile Science and Technology Donghua UniversityShanghai201620China

Smart generators that collect energy from the ambient environment are a new approach for meeting growing global energy *** is one of the most abundant resources in the ambient environment,and using it to generate electricity has aroused great interest in recent *** this review,we first summarize the emerging design principles of moisture power generation,including ion diffusion,streaming potential,and charged surface ***,based on these fundamental principles,we systematically summarize the materials thus far known to be suitable for moisture power ***,we highlight the application of moisture energy generators in various fields,such as thermoelectricity,solar thermal evaporation,capacitors,strain sensors,and information storage,and discuss current challenges and future prospects for the development of moisture energy generators.

关键词： Energy conversion Moisture-enabled electric generator Ion diffusion Streaming potential Smart generator

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Comparison of freshwater microbial communities in water and microplastics surfaces:insights from Dongting Lake,China

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Journal of Oceanology and Limnology 2025年第2期43卷 545-558页

作者： Yiming QIU Xiaofeng WEN Ziyi XIANG Zixiang CHEN Ziyi QIU Meinan PENG Shihan ZHONG Jiali HUANG Weicheng ZHOU Lingshi YIN School of Hydraulic and Environmental Engineering Changsha University of Science&TechnologyChangsha 410114China Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province Changsha 410114China Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province Changsha 410114China College of Water Resources&Civil Engineering Hunan Agricultural UniversityChangsha 410128China School of Chemistry and Environmental Science Xiangnan UniversityChenzhou 423000China

In recent years,microplastics(MPs)in freshwater lake have been receiving increasing attention;however,the microbial communities on the surface of MPs have not been well *** investigate the potential risk posed by MPs to the lake ecosystem and its surface microbial community structure,MPs samples were collected in September 2023 in the freshwater Dongting Lake,Hunan,China,at five sites,and the differences in bacterial species community composition and structure between MPs and water samples were *** show that MPs(13.71±3.32 items/L)in the samples were mostly black in color,fiber in shape,and PES in composition,and those<0.5 mm in size are *** bacterial composition in water was different from that on *** phylum level,Proteobacteria,Actinobacteria,Cyanobacteria,and Bacteroidetes were dominated in relative abundance in both water and *** was more abundant in MPs than in *** relative abundance of Bacteroidota and Actinobacteriota was significantly lower in MPs than in *** genus level,Pantoea and Pseudomonas were potentially pathogenic genera in MPs *** presence of Cyanobacteria and pathogenic bacteria is undoubtedly a potential risk to the deterioration of the water *** study revealed the difference in the distribution of bacterial community in water and MPs in Dongting Lake and provided new perspectives to further understanding of MPs pollution in freshwater lakes.

关键词： freshwater microplastic(MP) microbial community ecological risk

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CoSe_(2)supported single Pt site catalysts for hydrogen peroxide generation via two-electron oxygen reduction

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SusMat 2023年第3期3卷 334-344页

作者： Xiao-Dong Zhu Qian Zhang Xiaoxuan Yang Yingnan Wang Jinting Wu Jian Gao Ji-Jun Zou Gang Wu Yong-Chao Zhang State Key Laboratory Base of Eco-Chemical Engineering College of Chemical Engineering Qingdao University of Science&TechnologyQingdaoChina Department of Chemical and Biological Engineering University at BuffaloThe State University of New YorkBuffaloNew YorkUSA Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjinChina

Electrocatalytic oxygen reduction reaction(ORR)to prepare H_(2)O_(2)in acidic medium has the advantages of green,safety,and portability,which shows broad development ***,it still suffers from low catalyst activity,insufficient selectivity,and high ***,Pt_(1)/CoSe_(2)with ultralow 0.01 wt.%Pt atomic distribution was synthesized by a simple hydrothermal *** Pt_(1)/CoSe_(2)with ultralow Pt content exhibits high activity,high selectivity,and long-term stability for ORR to H_(2)O_(2)in O_(2)-saturated 0.1 M HClO_(4).The onset potential is as low as 0.75 V versus reversible hydrogen electrode(RHE),H_(2)O_(2)selectivity is as high as 84%(0.4 V ***),and the electron transfer number is 2.3(0.4 V ***).Moreover,the hydrogen peroxide yield using the flow cell testing is 110.02 mmol g_(cat).^(−1)h^(−1) with high Faradaic efficiency of 78%(0 V ***)at 0.1 M HClO_(4),and the catalyst did not deactivate significantly after 60 h stability *** studies and in situ X-ray photoelectron spectroscopy characterization confirm that the ultralow Pt content on CoSe_(2)can effectively regulate the electronic structure of Co as the real active site around the Pt site,which gives a suitable Δ_(dp) value(the difference between the d-band center of the active metal site and the p-band center of the terminal oxygen in*OOH),provides an ideal*OOH binding energy,and inhibits the O-O bond *** work successfully improves the intrinsic activity of the Co active sites around Pt in Pt_(1)/CoSe_(2)for acidic ORR to H_(2)O_(2)by constructing ultralow-content Pt single atom.

关键词： acidic ORR electrocatalysis hydrogen peroxide Pt_(1)/CoSe_(2) ultralow Pt content

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A new approach for evaluating regional permafrost changes:A case study in the Hoh Xil on the interior Qinghai‒Tibet Plateau

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Advances in Climate Change Research 2024年第6期15卷 1040-1056页

作者： Yu-Xin ZHANG Lin ZHAO Chang-Wei XIE Guo-Jie HU Shu-Hua YANG De-Fu ZOU Yong-Ping QIAO Xiang-Fei LI Jia-Jie PENG School of Geographical Sciences Nanjing University of Information Science&Technology(NUIST)Nanjing 210044China Cryosphere Research Station on the Qinghai‒Tibet Plateau Key Laboratory of Cryospheric Science and Frozen Soil EngineeringNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China School of Environmental Sciences Nanjing Xiaozhuang UniversityNanjing 211171China

The current spatial atmospheric forcing data cannot accurately depict the actual conditions of the Qinghai–Tibet Plateau(QTP),where monitoring stations are scarce and unevenly *** deficiency in atmospheric data hinders accurate simulation of plateau permafrost changes on the *** this study,we develop a new approach to evaluate regional permafrost changes,which does not rely on spatially distributed meteorological data but instead uses the regional climate change processes or temperature change *** on a transient heat conduction permafrost model,this approach was applied to the Qinghai Hoh Xil National Nature Reserve(referred to as Hoh Xil)within the QTP from 1960 to 2015,using the rate of air temperature change provided by the Wudaoliang Meteorological Station,the only national station in Hoh *** results showed that the difference between the simulated and observed change rates of mean annual ground temperature(MAGT)was less than 0.04℃ per decade from 2001 to 2015 at five long-term monitoring *** simulated ground temperature profiles in four boreholes from various permafrost zones revealed an error of less than 0.7℃ below 5 m in *** validation demonstrates the reliability of this approach for predicting long-term permafrost *** regional permafrost changes were further simulated based on the latest warming scenarios(BCC-CSM2-MR)from the Coupled Model Intercomparison Project Phase *** revealed significant differences in the regional permafrost degradation rate under different climate warming *** the most severe warming scenario(SSP5-8.5),permafrost in the study area is projected to still cover 72.2%of the total area by 2100,with most of the Hoh Xil's permafrost becoming warm(MAGT>−1℃)*** approach not only facilitates the simulation of frozen ground changes in areas with few meteorological monitoring stations but also provides a new perspective for using coarse-resolutio

关键词： Numerical modelling Permafrost change Forcing data Hoh Xil

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Enhancing Molecular Chain Entanglement and π-π Stacking Toward the Improvement of Shape Memory Performance of Polyimide

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Chinese Journal of Polymer science 2023年第8期41卷 1261-1268,I0009页

作者： Jia-Qiang Li Wen-Shuang Li Wen-Ting Zhang Shu Zhu Chu-Yang Luo Wan-Shuang Liu Li-Ying Zhang Shanghai Collaborative Innovation Center of High Performance Fibers and Composite(Province-Ministry Joint) Center for Civil Aviation CompositesDonghua UniversityShanghai 201620China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Shanghai Donghua Composites Technology Co.Ltd. Shanghai 201620China Key Laboratory of Textile Science&Technology College of TextilesDonghua UniversityShanghai 201620China

Thermoplastic polyimides(PIs)with shape memory potential have received growing attention in recent *** this work,highperformance thermoplastic PIs were fabricated by introducing PIs with chain rigidity(r-PI)into PI with chain flexibility(f-PI).The influences of molecular chain entanglement andπ-πinteractions on their thermomechanical and shape memory properties were *** degree of molecular chain entanglement was quantitively characterized based on dynamic mechanical analysis(DMA).Theπ-πinteractions were investigated in detail by X-ray diffraction(XRD)and UV-Vis *** was found that the entanglement density increased andπ-πinteractions became stronger with the introduction of r-PI into f-PI,leading to the improvement of shape ***,a broad and increased glass transition temperature(T_(g))was achieved,endowing the PIs with multiple shape memory *** synergistic effects of increased entanglement density and enhancedπ-πinteractions were beneficial to regulating interchain interactions and thereby achieving high shape memory performance of the PIs.

关键词： Shape memory polyimide Molecular chain entanglement r-r Stacking

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