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SSRN 2024年

作者： Dong, Pengyu Gao, Kangjie Zhang, Lihua Huan, Hengke Xie, Ming-Hua Yang, Xiu-Li Zhang, Jinlong Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Yancheng224051 China Key Laboratory for Advanced Materials Institute of Fine Chemicals School of Chemistry & Molecular Engineering Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and Technology 130 Meilong Road Shanghai200237 China

It remains challenging for the fabrication of metal-organic framework (MOF)/semiconductor heterojunction photocatalysts with close contact interfaces. In this work, a novel MOF/semiconductor heterojunction photocatalyst consisting of H2O2-modified TiO2 nanotubes (H2O2-TNTs) and MIL-88B(Fe)-NH2 (labeled as H-T/M) was firstly constructed based on the hydrogen-bonded combination between the O atoms from –OOH groups resulting from H2O2 absorbed on the surface of TiO2 nanotubes and the H atoms of the –NH2 group in MOF. The significantly enhanced photocatalytic property of the H-T/M heterojunction for reducing Cr(VI) under visible light irradiation could be ascribed to the accelerated interfacial electron transfer dynamics by a channel of hydrogen bonds (N···H–O–O–Ti), which could be extracted from the femtosecond transient absorption spectroscopy (fs-TAS). Moreover, the built-in electric field and the differences in charge density based on density functional theory (DFT) calculations could provide the driving force for charge transfer. © 2024, The Authors. All rights reserved.

关键词： Hydrogen bonds

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Calotropis gigantea Fiber‑Based Sensitivity‑Tunable Strain Sensors with Insensitive Response to Wearable Microclimate Changes

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advanced Fiber Materials 2023年第4期5卷 1378-1391页

作者： Junze Zhang Jing Liu Zeyu Zhao Weiwei Sun Gaojuan Zhao Jingge Liu Jianchu Xu Yuling Li Zekun Liu Yi Li Gang Li National Engineering Laboratory for Modern Silk College of Textile and Clothing EngineeringSoochow UniversitySuzhou 215123China Jiangsu Advanced Textile Engineering Technology Center Nantong 226007China Honghe Center for Mountain Futures Kunming Institute of BotanyChinese Academy of SciencesHonghe CountyYunnan 654412China Key Laboratory of Textile Science and Technology Ministry of EducationDonghua UniversityShanghai 201620China Department of Materials University of ManchesterOxford RoadManchester M139PLUK Botnar Research Center University of OxfordOld RoadHeadington OX37LDOxfordUK

Wearable tensile strain sensors have attracted substantial research interest due to their great potential in applications for the real-time detection of human motion and health through the construction of body-sensing *** devices,however,are constantly demonstrated in non-real world scenarios,where changes in body temperature and humidity are ignored,which results in questionable sensing accuracy and reliability in practical *** this work,a fabric-like strain sensor is developed by fabricating graphene-modified Calotropis gigantea yarn and elastic yarn(***)into an independently crossed structure,enabling the sensor with tunable sensitivity by directly altering the sensor *** sensor possesses excellent breathability,allowing water vapor generated by body skin to be discharged into the environment(the water evaporation rate is approximately 2.03 kg m^(-2) h^(-1))and creating a pleasing microenvironment between the sensor and the skin by avoiding the hindering of perspiration *** importantly,the sensor is shown to have a sensing stability towards changes in temperature and humidity,implementing sensing reliability against complex and changeable wearable *** wearing the sensor at various locations of the human body,a full-range body area sensing network for monitoring various body movements and vital signs,such as speaking,coughing,breathing and walking,is successfully *** provides a new route for achieving wearing-comfortable,high-performance and sensing-reliable strain sensors.

关键词： Wearable strain sensor Functionalized Calotropis gigantea fiber Wearable microclimate Graphene coating Tunable sensitivity

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Time-of-Arrival Simultaneous Sensor and Target Localization With Dynamic Optimal Sensor Placements

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IEEE Transactions on Aerospace and Electronic Systems 2025年

作者： Li, Xianliang Xu, Sheng Ho, K.C. Chinese Academy of Sciences Guangdong Provincial Key Laboratory of Robotics and Intelligent System Shenzhen Institutes of Advanced Technology Shenzhen518055 China University of Chinese Academy of Sciences Beijing101408 China University of Missouri EECS Department Columbia MA65211 United States

This paper focuses on optimizing the performance of simultaneous sensor and target localization (SSTL) using multiple mobile monostatic sensors. It leverages time-of-arrival (TOA) measurements received from the target, as well as from passive anchors located at known positions and the sensors themselves. The sensor positions are not known due to the limited accessibility of the global positioning system (GPS) in challenging environments. Firstly, we formulate the SSTL problem and conclude from the feasibility study the necessity of the presence of position-known anchors. Besides, the minimal number of sensors and anchors are derived to ensure a unique SSTL solution. Secondly, the positive effect of having the inter-sensor TOA measurements on the localization accuracy is analyzed. Thirdly, to break through the performance limit of the SSTL problem, an optimization problem is formulated based on the A-optimality criterion to minimize the estimation error lower bound with respect to the sensor positions. Fourthly, to tackle the proposed sensor placement problem to achieve better performance of SSTL, a fast convergence optimization algorithm, namely SPSA-Adam*, is developed by utilizing the simultaneous perturbation stochastic approximation (SPSA) and adaptive momentum estimation (Adam). An in-depth discussion of the proposed sensor placement optimization method is made. Furthermore, a comprehensive localization system for practical applications is established. Simulation examples demonstrate the effectiveness of the proposed methods and the correctness of the developments. © 1965-2011 IEEE.

关键词： Perturbation techniques

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A deformation mismatch strategy enables over 120% stretchability of encapsulated serpentine silicon strips for stretchable electronics

FlexMat

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FlexMat 2024年第2期1卷 150-159页

作者： Yihao Shi Bingchang Zhang Jianzhong Zhao Jiahao Qin Ke Bai Jia Yu Xiaohong Zhang Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University Suzhou China School of Optoelectronic Science and Engineering Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province Key Laboratory of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou China Applied Mechanics Laboratory Department of Engineering Mechanics Tsinghua University Beijing China Laboratory of Flexible Electronics Technology Tsinghua University Beijing China Bingchang Zhang Jianzhong Zhao and Xiaohong Zhang. Suzhou Industrial Park Monash Research Institute of Science and Technology Monash University Suzhou China Department of Materials Science and Engineering Monash University Clayton Victoria Australia

It is significant to develop stretchable electronics based on silicon materials for practical applications. Although various stretchable silicon structures have been reported, electronic systems based on them exhibit limited stretchability due to the constraints between them and polymer substrates. Here, an innovative strategy of deformation mismatch is proposed to break the constraints between silicon structures and polymers and effectively reduce the strain concentration in silicon structures. As a result, encapsulated serpentine silicon strips (S-Si strips) achieve unprecedented stretchability, exceeding 120%. The encapsulated S-Si strip also exhibits remarkable mechanical stability and durability, enduring 100 000 cycles of 100% stretch without fracture. The effect of key parameters, including the central angle, thickness, and width of the S-Si strip, on the deformation mismatch is revealed through combing experiments and theoretical analysis, which will guide the rational implementation of the deformation mismatch strategy. Electrical testing showcases the strain-insensitive nature and good electrical stability of encapsulated S-Si strips, benefiting practical applications. This work provides a new paradigm of silicon materials with excellent stretchability and will facilitate the development of stretchable electronics.

关键词： deformation mismatch encapsulated serpentine silicon strips stretchable electronics stretchable silicon structures

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Enhanced biodegradation of chlorobenzene via combined Fe^(3+) and Zn^(2+) based on rhamnolipid solubilisation

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Journal of Environmental Sciences 2021年第5期33卷 108-118页

作者： Na Liu Dan Li Kang Li Liping Wang Ruiwei Xu Jiaming Zhang Bairen Yang Engineering Research Center of Mine Ecological Construction Ministry of EducationChina University of Mining and TechnologyXuzhou 221116China College of Environmental Sciences and Engineering Peking UniversityBeijing 100871China School of Environmental Science and Engineering Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu ProvinceYancheng Institute of TechnologyYancheng 224051China

Biotrickling filters(BTFs) for hydrophobic chlorobenzene(CB) purification are limited by mass transfer and biodegradation. The CB mass transfer rate could be improved by 150 mg/L rhamnolipids. This study evaluated the combined use of Fe^(3+) and Zn^(2+) to enhance biodegradation in a BTF over 35 day. The effects of these trace elements were analysed under different inlet concentrations(250, 600, 900, and 1200 mg/L) and empty bed residence times(EBRTs;60, 45, and 32 sec). Batch experiments showed that the promoting effects of Fe^(3+)/Zn^(2+) on microbial growth and metabolism were highest for 3 mg/L Fe^(3+) and 2 mg/L Zn^(2+), followed by 2 mg/L Zn^(2+), and lowest at 3 mg/L Fe^(3+). Compared to BTF in the absence of Fe^(3+) and Zn^(2+), the average CB elimination capacity and removal efficiency in the presence of Fe^(3+) and Zn^(2+) increased from 61.54 to 65.79 g/(m 3 hr) and from 80.93% to 89.37%, respectively, at an EBRT of 60 sec. The average removal efficiency at EBRTs of 60, 45, and 32 sec increased by 2.89%, 5.63%, and 11.61%, respectively. The chemical composition(proteins(PN), polysaccharides(PS)) and functional groups of the biofilm were analysed at 60, 81, and 95 day. Fe^(3+) and Zn^(2+) significantly enhanced PN and PS secretion, which may have promoted CB adsorption and biodegradation. High-throughput sequencing revealed the promoting effect of Fe^(3+) and Zn^(2+) on bacterial populations. The combination of Fe^(3+) and Zn^(2+) with rhamnolipids was an efficient method for improving CB biodegradation in BTFs.

关键词： Chlorobenzene(CB) Rhamnolipid(RL) Fe^(3+)/Zn^(2+) Biotrickling filter Biofilm

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Recent advances in metastable alloys for hydrogen storage:a review

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Rare Metals 2022年第6期41卷 1797-1817页

作者： Huai-Jun Lin Yan-Shan Lu Liu-Ting Zhang Hai-Zhen Liu Kaveh Edalati Adám Révész Institute of Advanced Wear and Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China Guangdong Provincial Key Laboratory of Advance Energy Storage Materials South China University of TechnologyGuangzhou 510640China School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China Guangxi Colleges and Universities Key Laboratory of Novel Energy Materials and Related Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Guangxi Novel Battery Materials Research Center of Engineering Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Guangxi Key Laboratory of Processing for Non-Ferrous Metallic and Featured Materials Guangxi UniversityNanning 530004China International Institute for Carbon-Neutral Energy Research(WPI-I2CNER) Kyushu UniversityFukuoka 819-0395Japan Department of Materials Physics E?tv?s UniversityBudapest 1518Hungary

Development of new materials with high hydrogen storage capacity and reversible hydrogen sorp-tion performances under mild conditions has very high value in both fundamental and application *** the past years,some new systems with metastable structures,such as ultra-fine nanocrystalline alloys,amorphous alloys,nanoglass alloys,immiscible alloys,high-entropy alloys,have been abundantly studied as hydrogen storage *** new hydrogen storage properties either from the kinetics or thermodynamics aspects have been *** this review,recent advances of studies on metastable alloys for hydrogen storage applications have been comprehensively *** materials preparation methods to synthesize metastable hydrogen storage alloys are firstly ***,hydrogen storage prop-erties of the metastable alloys are summarized and dis-cussed,focusing on the unique kinetics and thermodynamics properties by forming of such unique metastable *** examples,superior hydrogena-tion kinetics and higher hydrogen storage capacity have been achieved in Mg-based amorphous and nanoglass *** thermodynamics properties can be obtained in the immiscible Mg-Mn and Mg-Zr *** addition to highlighting the recent achievements of metastable alloys in the field of hydrogen storage,the remaining challenges and trends of the emerging research are also discussed.

关键词： Hydrogen storage Metastable alloys Kinetics Thermodynamics

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Weakening of Mn-O bonds in MnO2-based catalysts to attenuate the negative effect of H2O on low-temperature catalytic oxidation of acetone: Experiments and calculations

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Chemical Engineering Journal 2025年 516卷

作者： Wu, Nanhua Wu, Song Yang, Jianbo Wang, Qiuling Yang, Siyao Li, Jing Gao, Qingwei Guo, Meng Zhong, Jing School of Petrochemical Engineering Changzhou University Changzhou213164 China Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou University Changzhou213164 China College of Environmental and Chemical Engineering Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power Shanghai University of Electric Power Shanghai200090 China School of Environmental Science and Engineering Changzhou University Changzhou213164 China

Exhaust emissions from the pharmaceutical and chemical industries typically contain significant quantities of OVOCs along with certain concentrations of water vapor. The presence of water vapor rapidly deactivates the catalysts, thereby severely limiting the industrial application of catalytic combustion technology. In this study, we developed MnO2-based bimetallic oxide catalysts with enhanced low-temperature activity and water-resistant stability for the catalytic oxidation of acetone, a representative OVOC. Among the catalysts evaluated, CeMnOx demonstrated exceptional performance, achieving T90 at 154 °C under conditions of 1000 ppmv acetone, 40,000 mL·g−1·h−1 WHSV and 5 vol% H2O, surpassing previously reported results. The superior performance of CeMnOx could be attributed to the strong electron transfer from Ce to Mn, which significantly weakened the Mn-O bonds. This electronic interaction resulted in an abundance of Mn3+ and surface adsorbed oxygen, generating numerous oxygen vacancies and active oxygen species. Furthermore, this unique structure facilitated the adsorption of H2O in the "type III" configuration, which readily dissociated into new active species, consequently attenuating the negative effect of water vapor on acetone oxidation. Atomic-level characterization revealed that H2O adsorption on CeMnOx did not alter the reaction pathway and the oxidation rate of intermediates, effectively minimizing competitive adsorption between H2O and acetone. This study provides fundamental insights into the design of advanced catalysts that simultaneously exhibit superior low-temperature activity and water-resistant stability, which are crucial for the practical implementation of catalytic combustion for OVOCs abatement in humid industrial environments. © 2025 Elsevier B.V.

关键词： Chemical industry

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Operator scattering theory for multilayer cylinders comprising gyrotropic materials and its application to Weyl semimetals

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Physical Review A 2025年第3期111卷 033520-033520页

作者： Michael M. Kharton Lei Gao Dongliang Gao Andrey Novitsky Belarusian State University Nezavisimosti Avenue 4 220030 Minsk Belarus School of Optical and Electronic Information Suzhou City University Suzhou 215104 China Jinagsu Key laboratory of Biophotonics & Suzhou Key Laboratory of Biophotonics & SZU-ITU International Joint Meta-center for Advanced Photonics and Electronics Suzhou City University Suzhou 215104 China School of Physical Science and Technology & Jiangsu Key Laboratory of Frontier Material Physics and Devices Soochow University Suzhou 215006 China

Weyl semimetals are prospective materials to tailor light-matter interaction due to their gyrotropic properties caused by a couple of chiral Weyl points. Here, we study electromagnetic scattering characteristics from infinitely long multilayer cylindrical particles containing Weyl semimetal layers. We develop a modification of operator scattering theory that uses evolution operators to describe a set of layers. We reveal asymmetry in differential scattering cross sections stemming from the axion term of Weyl semimetal permittivity tensor, trace the radiation pattern change for multilayer particles, analyze the interference of lower multipoles with perspective of generalizing the Kerker effect, and carry out multipolar decomposition of the scattered radiation. Both the scattering theory and the numerical results can be useful for device engineering in nanophotonics.

关键词： Multilayers

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Motion Analysis of Magnetically Controlled Halbach Array

Motion Analysis of Magnetically Controlled Halbach Array

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IEEE International Conference on Real-time Computing and robotics (RCAR)

作者： Yulu Li Wanfeng Shang Wenqiang Huang Xiaofei Liu Xinyu Wu South University of Science and Technology of China Shenzhen China Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen China Guangdong Provincial Key Laboratory of Robotics and Intelligent System Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen China

Magnetic control technology is increasingly used in various fields to achieve more accurate wireless control. Different magnetic field arrangement modes can be selected for control according to different scenes. To acquiring the high maneuver of magnetic actuator and good application adaptability, Permanent Magnet Halbach array (PMHA) is a good choice as a potential robotic actuator. This paper presents the PMHA has more maneuverability and magnetic intensity than single polar magnets. FEM simulations and experiments are made to analyze the static and dynamic performances. Under the control of an external permanent magnet (EPM), the PMHA can achieve two kinds of rotation around different axises except for linear motion along with six arises. The experiments validate PMHA has the multi-mode motion performances and higher magnetic intensity per volume. The result provides its potential application as robotic actuator.

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Sodium-Ion Battery Anode Construction with SnP_(x)Crystal Domain in Amorphous Phosphorus Matrix

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Energy Material Advances 2021年第1期2021卷 37-47页

作者： Baixu Chen Yubo Yang Aibing Chen Xu Zhang Jaffer Saddique Mingxue Tang Haijun Yu Institute of Advanced Battery Materials and Devices Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Key Laboratory of Advanced Functional Materials Ministry of EducationBeijing University of TechnologyBeijing 100124China College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018China College of Materials Science&Technology Jiangsu Key Laboratory of Materials and Technology for Energy ConversionNanjing University of Aeronautics&AstronauticsNanjing 210016China Center for High Pressure Science&Technology Advanced Research Beijing 100094China

The high-capacity phosphorus-(P-)based anode materials for sodium-ion batteries(NIBs)often face poor performance retentions owing to the low conductivity and large volume *** is thus essential to buffer these problems by appropriately alloying with other elements such as tin(Sn)and constructing well-designed ***,a series of P-/Sn-based composites have been synthesized by the facile and low-cost one-step ball *** distribution function(PDF)has been employed as a hardcore quantitative technique to elucidate their structures combined with other techniques,suggesting the formation and ratios of Sn4P3 and Sn crystalline domains embedded inside an amorphous P/carbon *** composite with the largest amount of Sn4P3 in the P/C matrix can deliver the most balanced electrochemical performance,with a capacity of 422.3 mA-h g^(−1 )for 300 cycles at a current density of 1000mAg^(−1).The reaction mechanism has been elucidated by 23Na and 31P solid-state nuclear magnetic resonance(NMR)*** study sheds light on the rational design and concrete identification of P-/Sn-based amorphous-dominant composite materials for NIBs.

关键词： alloying amorphous composite

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