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Ultra-robust stretchable electrode for e-skin:In situ assembly using a nanofiber scaffold and liquid metal to mimic water-to-net interaction

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InfoMat 2022年第4期4卷 124-137页

作者： Jinwei Cao Fei Liang Huayang Li Xin Li Youjun Fan Chao Hu Jing Yu Jin Xu Yiming Yin Fali Li Dan Xu Hanfang Feng Huali Yang Yiwei Liu Xiaodong Chen Guang Zhu Run-Wei Li New Materials Institute Department of MechanicalMaterials and Manufacturing EngineeringUniversity of Nottingham Ningbo ChinaNingboChina CAS Key Laboratory of Magnetic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingboChina Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingboChina Innovative Center for Flexible Devices(iFLEX) Max Planck-NTU Joint Lab for Artificial SensesSchool of Materials Science and EngineeringNanyang Technological UniversitySingaporeSingapore CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijingChina Institute of Textiles&Clothing The Hong Kong Polytechnic UniversityHong KongChina State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijingChina

The development of stretchable electronics could enhance novel interface structures to solve the stretchability-conductivity dilemma,which remains a major ***,we report a nano-liquid metal(LM)-based highly robust stretchable electrode(NHSE)with a self-adaptable interface that mimics water-tonet *** on the in situ assembly of electrospun elastic nanofiber scaffolds and electrosprayed LM nanoparticles,the NHSE exhibits an extremely low sheet resistance of 52 mΩsq^(-1).It is not only insensitive to a large degree of mechanical stretching(i.e.,350%electrical resistance change upon 570%elongation)but also immune to cyclic deformation(i.e.,5%electrical resistance increases after 330000 stretching cycles with 100%elongation).These key properties are far superior to those of the state-of-the-art *** robustness and stability are verified under diverse circumstances,including long-term exposure to air(420 days),cyclic submersion(30000 times),and resilience against mechanical *** combination of conductivity,stretchability,and durability makes the NHSE a promising conductor/electrode solution for flexible/stretchable electronics for applications such as wearable on-body physiological signal detection,human-machine interaction,and heating e-skin.

关键词： crack confinement functional e-skin in situ assembly self-adaptable interface ultra-robust stretchable electrode

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Modulating p-type doping of two-dimensional material palladium diselenide

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Nano Research 2024年第4期17卷 3232-3244页

作者： Jiali Yang Yu Liu En-Yang Wang Jinbo Pang Shirong Huang Thomas Gemming Jinshun Bi Alicja Bachmatiuk Hao Jia Shu-Xian Hu Chongyun Jiang Hong Liu Gianaurelio Cuniberti Weijia Zhou Mark H Rümmeli Institute for Advanced Interdisciplinary Research(iAIR) University of JinanJinan 250022China Institute for Materials Chemistry Leibniz Institute for Solid State and Materials Research Dresden(IFW Dresden)20 Helmholtz StrasseDresden 01069Germany State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China College of Energy Soochow Institute for Energy and Materials Innovations Soochow UniversitySuzhou 215006China Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow UniversitySuzhou 215006China School of Integrated Circuits University of Chinese Academy of SciencesBeijing 101408China Institute of Microelectronics of Tianjin Binhai New Area Tianjin 300451China Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China Lukasiewicz Research Network PORT Polish Center for Technology DevelopmentStablowicka 147Wroclaw 54-066Poland School of Mathematics and Physics University of Science and Technology BeijingBeijing 100083China College of electronic information and optical engineering Nankai UniversityTianjin 300350China Centre of Polymer and Carbon Materials Polish Academy of SciencesM.Curie Sklodowskiej 34Zabrze 41-819Poland Center for Energy and Environmental Technologies VŠB-Technical University of Ostrava17.Listopadu 15Ostrava 70833Czech Republic State Key Laboratory of Crystal Materials Center of Bio&Micro/Nano Functional MaterialsShandong UniversityJinan 250100China Dresden Center for Computational Materials Science Technische Universität DresdenDresden 01062Germany Dresden Center for Intelligent Materials(GCL DCIM) Technische Universität DresdenDresden 01062Germany Institute for Materials Science and Max Bergmann Center of Biomaterials Technische Universität DresdenDresden 01069Germany Center for Advancing Electronics Dresden Technische Universität DresdenDresden 01069Germany

The van der Waals heterostructures have evolved as novel materials for complementing the Si-based semiconductor ***-10 noble metal dichalcogenides(e.g.,PtS_(2),PtSe_(2),PdS_(2),and PdSe_(2))have been listed into two-dimensional(2D)materials toolkit to assemble van der Waals *** them,PdSe_(2) demonstrates advantages of high stability in air,high mobility,and wide tunable ***,the regulation of p-type doping of PdSe_(2) remains unsolved problem prior to fabricating p–n junction as a fundamental platform of semiconductor ***,a quantitative method for the controllable doping of PdSe_(2) is yet to be *** this study,the doping level of PdSe_(2) was correlated with the concentration of Lewis acids,for example,SnCl_(4),used for *** the transfer characteristics,the threshold voltage(the gate voltage corresponding to the minimum drain current)increased after SnCl_(4) soaking ***_(2) transistors were soaked in SnCl_(4) solutions with five different *** threshold voltages from the as-obtained transfer curves were extracted for linear fitting to the threshold voltage versus doping concentration correlation *** study provides in-depth insights into the controllable p-type doping of PdSe_(2).It may also push forward the research of the regulation of conductivity behaviors of 2D materials.

关键词： two-dimensional(2D)materials Lewis acid treatment p-type doping field-effect transistors transfer characteristic

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Interactions between Cmas and Al2O3-TiO2 Ceramics at 1250 °C

SSRN

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SSRN 2024年

作者： Yu, Zhiyun Gong, Yugang Wang, Yunqing He, Huan Liang, Tianquan State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials Guangxi University Nanning530004 China School of Resources Environment and Materials Guangxi University Nanning530004 China

The interactions between CMAS and Al2O3-xTiO2 (x=0, 5, 10 and 15, wt%) ceramics at 1250 °C were investigated. The ceramics intensively reacts with CMAS, resulting in formation of Ca2MgSi2O7 and CaAl2Si2O8 phases at initial stage, and additional MgAl2O4 and CaTiO3 after prolonged time. A continuous-thin anorthite dense reaction layer forms within 15 min, then new MgAl2O4 dense layer and CaTiO3 zone sequentially form beneath the anorthite layer with prolonged interaction. CMAS infiltrates through the dense reaction layer along grain boundaries. TiO2 promotes CMAS infiltration and crystallization, and thickens reaction layers. The interaction behaviors and mechanism are discussed in detail. © 2024, The Authors. All rights reserved.

关键词： Titanium dioxide

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A Novel Wood-Based Multifunctional Composites Incorporating with Piezoelectric and Moist-Electric Performance

SSRN

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SSRN 2024年

作者： Tang, Xue Jiang, Bei Zhu, Qingtao Chen, Xianfen Xiao, Lei Zhou, Lijun Chen, Junyan Chen, Jiabin Liu, Zhigao Yuan, Quanping School of Resources Environment and Materials Guangxi University Nanning530004 China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials Guangxi University Nanning530004 China

The multifunctionality of abundant wood materials with reproducible properties is of increasing interest. In this work, a wood-based multifunctional composite displaying piezoelectric and moist-electric performance has been proposed. Wood was firstly delignified and oxidized, and then impregnated with MXene. In addition, zinc oxide (ZnO) was added to the wood via hydrothermal synthesis. It can be found that the negative charge on the surface of MXene-impregnated wood can attract Zn2+ by electrostatic adsorption, creating a large number of nucleation sites for the growth of ZnO and accelerating its nucleation rate. Also, enlarging the loading amount of ZnO can improve the fluidization current. The obtained OWPM/MXene/ZnO moist-electrical generator (MEG) can generate a voltage of 0.75 V at 85%RH, and can also collect energy from hot steam (about 0.4 V). Simultaneously, the heterojunction formed between ZnO and MXene further enhanced the piezoelectric properties. Finally, a piezoelectric generator (PEG) with anisotropic piezoelectric sensing properties was prepared by impregnation with polydimethylsiloxane (PDMS). Particularly, it could generate a voltage up to 4.71 V when a force of 45 N was applied perpendicular to the fiber direction. The assembled PEGs with four multiplied PEG can light up the LED. Overall, the application demonstrations of MEGs and PEGs highlighted their potential for mechanical energy harvesting and conversion, as well as piezoelectric and hydroelectric sensors. © 2024, The Authors. All rights reserved.

关键词： Zinc oxide

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Enhanced photodynamic therapy/photothermo therapy for nasopharyngeal carcinoma via a tumour microenvironment-responsive self-oxygenated drug delivery system

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Asian Journal of Pharmaceutical Sciences 2022年第2期17卷 253-267页

作者： Nan Wu Yaqin Tu Guorun Fan Jiahui Ding Jun Luo Wei Wang Chong Zhang Caiyan Yuan Handan Zhang Pei Chen Songwei Tan Hongjun Xiao Department of Otorhinolaryngology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China School of Pharmacy Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Zhejiang Fenghong New Material Co.Ltd. Huzhou 313300China State Key Laboratory of Materials Processing and Die and Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

The hypoxic nature of tumours limits the efficiency of oxygen-dependent photodynamic therapy(PDT).Hence,in this study,indocyanine green(ICG)-loaded lipid-coated zinc peroxide(ZnO_(2))nanoparticles(ZnO_(2)@Lip-ICG)was constructed to realize tumour microenvironment(TME)-responsive self-oxygen *** infrared light irradiation(808 nm),the lipid outer layer of ICG acquires sufficient energy to produce heat,thereby elevating the localised temperature,which results in accelerated ZnO_(2)release and apoptosis of tumour *** ZnO_(2)rapidly generates O_(2)in the TME(pH 6.5),which alleviates tumour hypoxia and then enhances the PDT effect of *** results demonstrate that ZnO_(2)@Lip-ICG NPs display good oxygen self-supported properties and outstanding PDT/PTT characteristics,and thus,achieve good tumour proliferation suppression.

关键词： Liposome ICG Photodynamic therapy Hypoxia Tumour therapy

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Synthesis of Trifunctional Inorganic/Organic Hybrid Nanocomposites and Their Applications for Recognition and Elimination of Heavy Metal Ions

SSRN

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SSRN 2022年

作者： Xu, Yaohui Gao, Liangjuan Yang, Zhou Laboratory for Functional Materials School of New Energy Materials and Chemistry Leshan Normal University Sichuan Leshan614000 China State Key Laboratory of New Textile Materials and Advanced Processing Technology Wuhan Textile University Hubei Wuhan430200 China College of Materials Science and Engineering Sichuan University Sichuan Chengdu610065 China

The core-shell nanoparticles with magnetic Fe 3 O 4 as core structure and porous SiO 2 as shell structure were synthesized by the hydrolysis and condensation of tetraethyl orthosil... 详细信息

The core-shell nanoparticles with magnetic Fe 3 O 4 as core structure and porous SiO 2 as shell structure were synthesized by the hydrolysis and condensation of tetraethyl orthosilicate on Fe 3 O 4 seed in an alkaline medium. Subsequently, the inorganic/organic hybrid nanocomposites based on core-shell Fe 3 O 4 @SiO 2 nanoparticles was fabricated using "grafting-from" strategy, and a macrocyclic dioxotetraamine (1,4,8,11-tetraazacyclotetradecane-5,7-dione, TACTDD) was eventually grafted onto the end of Fe 3 O 4 @SiO 2 surface. The as-synthesized nanocomposites possessed three functionality: Firstly, the nanocomposites showed a selective fluorescence response toward Fe 3+ ion, the eye-perceived fluorescence quenching toward Fe 3+ ion under ultraviolet light could be used for the qualitative recognition of Fe 3+ ion;Secondly, the nanocomposites were an excellent adsorbent, exhibited universal adsorption capacities for Fe 3+ , Zn 2+ , Hg 2+ and Pd 2+ ions, and could be recycled by desorption of Na 2 EDTA;Thirdly, the nanocomposites had superparamagnetism and strong magnetic sensitivity, which can facilitate the sustainable removal of heavy metal ions in practical applications. © 2022, The Authors. All rights reserved.

关键词： Desorption

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Strong and efficient bismuth telluride-based thermoelectrics for Peltier microcoolers

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National Science Review 2024年第10期11卷 331-340页

作者： Hua-Lu Zhuang Bowen Cai Yu Pan Bin Su Yilin Jiang Jun Pei Fengming Liu Haihua Hu Jincheng Yu Jing-Wei Li Zhengqin Wang Zhanran Han Hezhang Li Chao Wang Jing-Feng Li State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Guangxi Pilot Free Trade Zone Jianju Technology Co. LTD. Max Planck Institute for Chemical Physics of Solids Department of Precision Instrument Tsinghua University

Thermoelectric Peltier coolers（PCs） are being increasingly used as temperature stabilizers for optoelectronic devices. Increasing integration drives PC miniaturization, requiring thermoelectric materials with good strength. We demonstrate a simultaneous gain of thermoelectric and mechanical performance in（Bi, Sb）2Te3, and successfully fabricate micro PCs（2 × 2 mm2cross-section） that show excellent maximum cooling temperature difference of 89.3 K with a hot-side temperature of 348 K. A multi-step process involving annealing, hot-forging and composition design, is developed to modify the atomic defects and nano-and microstructures. The peak ZT is improved to ～1.50 at 348 K, and the flexural and compressive strengths are significantly enhanced to ～140 MPa and ～224 MPa, respectively. These achievements hold great potential for advancing solid-state refrigeration technology in small spaces.

关键词： bismuth telluride thermoelectric powder metallurgy precision processing Peltier cooler microdevice

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Electrolyte Concentration Regulation Boosting Zinc Storage Stability of High-Capacity K0.486V2O5 Cathode for Bendable Quasi-Solid-state Zinc Ion Batteries

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Nano-Micro Letters 2021年第2期13卷 232-245页

作者： Linpo Li Shuailei Liu Wencong Liu Deliang Ba Wenyi Liu Qiuyue Gui Yao Chen Zuoqi Hu Yuanyuan Li Jinping Liu School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of Chemistry Chemical Engineering and Life Scienceand State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070People’s Republic of China Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025People’s Republic of China

Vanadium-based cathodes have attracted great interest in aqueous zinc ion batteries(AZIBs)due to their large capacities,good rate performance and facile synthesis in large ***,their practical application is greatly hampered by vanadium dissolution issue in conventional dilute ***,taking a new potassium vanadate K0.486V2O5(KVO)cathode with large interlayer spacing(~0.95 nm)and high capacity as an example,we propose that the cycle life of vanadates can be greatly upgraded in AZIBs by regulating the concentration of ZnCl2 electrolyte,but with no need to approach“water-in-salt”*** the optimized moderate concentration of 15 m ZnCl2 electrolyte,the KVO exhibits the best cycling stability with ~95.02% capacity retention after 1400 *** further design a novel sodium carboxymethyl cellulose(CMC)-moderate concentration ZnCl2 gel electrolyte with high ionic conductivity of 10.08 mS cm^-1 for the first time and assemble a quasi-solid-state *** device is bendable with remarkable energy density(268.2 Wh kg^−1),excellent stability(97.35% after 2800 cycles),low self-discharge rate,and good environmental(temperature,pressure)suitability,and is capable of powering small *** device also exhibits good electrochemical performance with high KVO mass loading(5 and 10 mg cm^-2).Our work sheds light on the feasibility of using moderately concentrated electrolyte to address the stability issue of aqueous soluble electrode materials.

关键词： Electrolyte concentration regulation Quasi-solid-state Zn ion battery K0.486V2O5 Large interlayer spacing Cycling stability

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Dielectrophoretic Assembly of Carbon Nanotube Chains in Aqueous Solution

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advanced Fiber materials 2021年第5期3卷 312-320页

作者： Dan Zhao Rui Liu Cheng Luo Yang Guo Chengyi Hou Qinghong Zhang Yaogang Li Wei Jia Hongzhi Wang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Engineering Research Center of Digitalized Textile and Fashion Technology Ministry of EducationShanghai 201620China Engineering Research Center of Advanced Glasses Manufacturing Technology Ministry of EducationDonghua UniversityShanghai 201620China State Key Laboratory for Space Power Sources Technology Shanghai Institute of Space Power-SourcesShanghai 200245China

Carbon nanotubes(CNTs)have generated remarkable interests in a wide range of research fields due to their excellent electri-cal ***,achieving the CNTs arrangement with high quality in a short time remains a *** we studied the in-situ assembly of CNTs based on macroscopic dielectrophoresis by using a centimeter scale electrode,which overcome the limitation of small size in traditional method for manipulating *** CNTs chains could be obtained under the action of alternating current dielectrophoresis by optimizing the voltage and ***,the ordered chains were able to restore immediately upon powering up after being ***,a CNTs chain was prepared for conducting the wet circuit and powering a LED,and different conductive patterns on the non-woven fabric were achieved by controlling the position of the electrodes in wet environment.

关键词： Carbon nanotubes Dielectrophoresis In-situ assembly Wet circuit

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Effect of Mg Addition on the Microstructure and Mechanical Properties of Cu-Ti-Zr Alloy

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SSRN 2024年

作者： Han, Zhiyu Zhou, Meng Jing, Ke Chu, Chunhe Zhang, Yi Tian, Baohong Li, Zhengao He, Wenhao Song, Lihui Henan University of Science and Technology School of Materials Science and Engineering Luoyang471023 China Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metals New Materials and Advanced Processing Technology Henan Province Luoyang471023 China Henan Province Key Laboratory of Nonferrous Materials Science and Processing Technology Luoyang471023 China

Cu-Ti-Zr and Cu-Ti-Zr-Mg alloys were prepared by vacuum melting. The two alloys were solid dissolved and aged after 80% cold rolling. The aging precipitation kinetic equations of the two alloys were established. The results indicate that under peak aging conditions, the strength and elongation of Cu-Ti-Zr alloy are 771MPa and 4.7%, while those of Cu-Ti-Zr-Mg alloy are 823MPa and 4.4% respectively. EBSD results revealed that Mg element promotes recrystalization in the Cu-Ti-Zr alloy, and TEM images showed that the types of precipitates and their relationship with the matrix changed after the addition of Mg element. The strength contribution indicates that the main strengthening mechanism of the alloy is precipitation strengthening. © 2024, The Authors. All rights reserved.

关键词： Titanium alloys

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