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Engineering hollow core-shell hetero-structure box to induce interfacial charge modulation for promoting bidirectional sulfur conversion in lithium-sulfur batteries

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Journal of Energy Chemistry 2023年第5期80卷 128-139,I0004页

作者： Weiliang Zhou Xinying Wang Jiongwei Shan Liguo Yue dongzhen lu Li Chen Jiacheng Zhang Yunyong Li School of Materials and Energy Guangdong University of TechnologyNo.100 Waihuan Xi RoadGuangzhou Higher Education Mega CenterGuangzhou 510006GuangdongChina

Severe polysulfide shuttling and sluggish sulfur redox kinetics significantly decrease sulfur utilization and cycling stability in lithium-sulfur batteries(LSBs).Herein,we develop a hollow CoO/CoP-Box core-shell heterostructure as a model and multifunctional catalyst modified on separators to induce interfacial charge modulation and expose more active sites for promoting the adsorption and catalytic conversion ability of sulfur *** and experimental findings verify that the in-situ formed core-shell hetero-interface induces the formation of P-Co-O binding and charge redistribution to activate surface O active sites for binding lithium polysulfides(LiPSs)via strong Li-O bonding,thus strongly adsorbing with Li ***,the strong Li-O bonding weakens the competing Li-S bonding in LiPSs or Li2S adsorbed on CoO/CoP-Box surface,plus the hollow heterostructure provides abundant active sites and fast electron/Li+transfer,so reducing Li2S nucleation/dissolution activation *** expected,LSBs with CoO/CoP-Box modified separator and traditional sulfur/carbon black cathode display a large initial capacity of 1240 mA h g^(-1)and a long cycling stability with 300 cycles(~60.1%capacity retention)at ***,the thick sulfur cathode(sulfur loading:5.2 mg cm^(-2))displays a high initial areal capacity of 6.9 mA h cm^(-2).This work verifies a deep mechanism understanding and an effective strategy to induce interfacial charge modulation and enhance active sites for designing efficient dual-directional Li-S catalysts via engineering hollow core-shell hetero-structure.

关键词： CoO/CoP-Box Hollow core-shell hetero-structure Multifunctional catalysts Interfacial charge modulation Lithium sulfur batteries

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Ultra-thick,dense dual-encapsulated Sb anode architecture with conductively elastic networks promises potassium-ion batteries with high areal and volumetric capacities

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eScience 2023年第6期3卷 58-68页

作者： Zhonggang Liu Xi Liu Bingchun Wang Xinying Wang dongzhen lu Dijun Shen Zhefei Sun Yongchang Liu Wenli Zhang Qiaobao Zhang Yunyong Li School of Materials and Energy Guangdong University of TechnologyNo.100 Waihuan Xi RoadGuangzhou Higher Education Mega CenterGuangzhou 510006China State Key Laboratory of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamenFujian 361005China Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyState Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyNo.100 Waihuan Xi RoadGuangzhou Higher Education Mega CenterGuangzhou 510006China

Ultra-thick,dense alloy-type anodes are promising for achieving large areal and volumetric performance in potassium-ion batteries(PIBs),but severe volume expansion as well as sluggish ion and electron diffusion kinetics heavily impede their widespread ***,we design highly dense(3.1 g cm^(-3))Ti_(3)C_(2)T_(x) MXene and graphene dual-encapsulated nano-Sb monolith architectures(HD-Sb@Ti_(3)C_(2)T_(x)-G)with high-conductivity elastic networks(1560 S m^(-1))and compact dually encapsulated structures,which exhibit a large volumetric capacity of 1780.2 mAh cm^(-3)(gravimetric capacity:565.0 mAh g^(-1)),a long-term stable lifespan of 500 cycles with 82%retention,and a large areal capacity of 8.6 mAh cm^(-2)(loading:31 mg cm^(-2))in *** ex-situ SEM,in-situ TEM,kinetic investigations,and theoretical calculations,we reveal that the excellent areal and volumetric performance mechanism stems from the three dimensional(3D)high-conductivity elastic networks and the dualencapsulated Sb architecture of Ti_(3)C_(2)T_(x) and graphene;these effectively mitigate against volume expansion and the pulverization of Sb,offering good electrolyte penetration and rapid ionic/electronic ***_(3)C_(2)T_(x) also decreases the Kþdiffusion energy barrier,and the ultra-thick compact electrode ensures volumetric and areal *** findings provide a feasible strategy for fabricating ultra-thick,dense alloy-type electrodes to achieve high areal and volumetric capacity energy storage via highly-dense,dual-encapsulated architectures with conductive elastic networks.

关键词： Antimony Dually encapsulated structure Compact monolith Areal capacity Volumetric capacity Potassium-ion batteries

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厌氧胶与铸件修补技术

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润滑与密封 1982年第6期 29-30页

作者：陆冬贞上海新光化工厂

厌氧胶具有良好的流动性和渗透性,可以毫不费劲地涂刷或浸涂在铸件表面的微细沟痕上,且固化后成为不溶不融的交联结构。厌氧胶固化后体积收缩甚微,能与被粘物形成一个整体,因此,即使在高压和强振动的条件下胶层结构也不会遭破坏。这些... 详细信息

厌氧胶具有良好的流动性和渗透性,可以毫不费劲地涂刷或浸涂在铸件表面的微细沟痕上,且固化后成为不溶不融的交联结构。厌氧胶固化后体积收缩甚微,能与被粘物形成一个整体,因此,即使在高压和强振动的条件下胶层结构也不会遭破坏。这些优良的密封防震性

关键词：厌氧胶浸涂胶液铸件修补微细孔

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我国聚氨酯胶粘剂的发展现状及趋势

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聚氨酯工业 2006年第4期21卷 1-6页

作者：陆冬贞孙杰上海新光化工厂 201811

评述了我国聚氨酯胶粘剂的发展现状和趋势,对一些主要胶种如鞋用聚氨酯胶、通用型聚氨酯胶、复合膜用聚氨酯胶粘剂、单组份聚氨酯液体胶、无溶剂聚氨酯结构胶、水性聚氨酯胶粘剂、单组份湿固化聚氨酯密封胶、聚氨酯泡沫密封剂、反应型... 详细信息

评述了我国聚氨酯胶粘剂的发展现状和趋势,对一些主要胶种如鞋用聚氨酯胶、通用型聚氨酯胶、复合膜用聚氨酯胶粘剂、单组份聚氨酯液体胶、无溶剂聚氨酯结构胶、水性聚氨酯胶粘剂、单组份湿固化聚氨酯密封胶、聚氨酯泡沫密封剂、反应型聚氨酯热熔胶等的发展状况、市场和趋势分别作了概述。

关键词：聚氨酯胶粘剂密封胶市场概况发展趋势

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Inhibition of the NLRP3 inflammasome attenuates spiral ganglion neuron degeneration in aminoglycoside-induced hearing loss

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Neural Regeneration Research 2025年第10期20卷 3025-3039页

作者： Jia Fang Zhuangzhuang Li Pengjun Wang Xiaoxu Zhang Song Mao Yini Li dongzhen Yu Xiaoyan Li Yazhi Xing Haibo Shi Shankai Yin Department of Otolaryngology Head and Neck Surgery Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineOtolaryngology Institute of Shanghai Jiao Tong UniversityShanghai Key Laboratory of Sleep Disordered BreathingShanghaiChina Department of Otorhinolaryngology-Head and Neck Surgery Shanghai Children’s HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina

Aminoglycosides are a widely used class of antibacterials renowned for their effectiveness and broad antimicrobial ***,their use leads to irreversible hearing damage by causing apoptosis of hair cells as their direct *** addition,the hearing damage caused by aminoglycosides involves damage of spiral ganglion neurons upon *** investigate the mechanisms underlying spiral ganglion neuron degeneration induced by aminoglycosides,we used a C57BL/6J mouse model treated with *** found that the mice exhibited auditory deficits following the acute loss of outer hair *** ganglion neurons displayed hallmarks of pyroptosis and exhibited progressive degeneration over *** profiling of these neurons showed significant upregulation of genes associated with inflammation and immune response,particularly those related to the NLRP3 *** of the canonical pyroptotic pathway in spiral ganglion neurons was observed,accompanied by infiltration of macrophages and the release of proinflammatory *** intervention targeting NLRP3 using Mcc950 and genetic intervention using NLRP3 knockout ameliorated spiral ganglion neuron degeneration in the injury *** findings suggest that NLRP3 inflammasome-mediated pyroptosis plays a role in aminoglycoside-induced spiral ganglion neuron *** of this pathway may offer a potential therapeutic strategy for treating sensorineural hearing loss by reducing spiral ganglion neuron degeneration.

关键词： degeneration hearing loss macrophages Mcc950 neuroinflammation NLRP3 inflammasome ototoxicity pyroptosis sensorineural hearing loss spiral ganglion neuron

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Vibration and acoustic radiation of bogie area under random excitation in high-speed trains

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Journal of Modern Transportation 2019年第2期27卷 120-128页

作者： dongzhen Wang Jianmin Ge School of Physical Sciences and Engineering Tongji University Shanghai 200092 China CRRC Qingdao Sifang Co. Ltd Qingdao 266111 China

Based on the experiments on a platform with real vehicle structure and finite element simulation, the vibration and interior acoustic radiation under random excitations of high-speed trains’ bogie area were studied. Firstly, combined with line tests, a vehicle body with a length of 7 m was used as the research object. By comparing the results of experiment and simulation, the accuracy of the finite element model was verified. Secondly, the power spectral density curves at typical measuring points in bogie area were obtained by processing and calculating the line test data, which was measured when the vehicle ran at high speeds, and the standard vibration spectrum of the bogie area was obtained by the extreme envelope method. Furthermore, the random vibration test and simulation prediction analysis of the real vehicle structure were carried out to further verify the accuracy of the noise and vibration prediction model. Finally, according to the vibration and acoustic radiation theory, the indirect boundary element method was adopted to predict the acoustic response of the real vehicle. The analysis shows that the simulated power spectral density curves of acceleration and sound pressure level are highly consistent with the experimental ones, and the error between the simulated prediction and the experimental result is within the allowable range of 3 dB.

关键词： High-speed trains Standard vibration spectrum Indirect boundary element method Random excitation Acoustic radiation

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Odorant-binding protein 19 in Monochamus alternatus involved in the recognition of a volatile strongly emitted from ovipositing host pines

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Insect Science 2024年第1期31卷 134-146页

作者： Ruinan Yang dongzhen Li Shancheng Yi Yi Wei Manqun Wang Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhanChina Key Laboratory of Forest Protection of National Forestry and Grassland Administration Ecology and Nature Conservation InstituteChinese Academy of ForestryBeijingChina

Monochamus alternatus is the primary carrier of pine wood nematodes,which pose a serious threat to Pinus *** many *** emerging *** adults feed on heathy host pines,while matured adults transfer to stressed host pines for mating and *** odorant-binding proteins(OBPs)of *** have been proved to aid in the complex process of host *** clarify the corresponding relations between OBPs and pine volatiles,more OBPs need to be *** this research,MaltOBP19 showed a specific expression in the antennae and mouthparts of ***,and it was marked in 4 types of antenna sensilla by *** binding assays demonstrated the high binding affinity of MaltOBP19 with camphene and myrcene in *** Y-tube olfactory experiments,*** adults were attracted by camphene and RNAi of OBP19 via microinjection significantly decreased their attraction *** induced phobotaxis,but RNAi had no significant effect on this ***,we found that ingesting dsOBP19 produced by a bacteria-expressed system with a newly constructed vector could lead to the knockdown of *** results suggest that MaltOBP19 may play a role in the process of host conversion via the recognition of camphene,which has been identified to be strongly released in stressed host *** addition,it is proved that knockdown of OBP can be achieved by oral administration of bacteria-expressed double-stranded RNA in *** adults,providing a new perspective in the control of ***.

关键词： bacteria-expressed dsRNA camphene Japanese pine sawyer beetle MaltOBP19 RNAi stressed host pines

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Coastal bathymetry inversion using SAR-based altimetric gravity data:A case study over the South Sandwich Island

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Geodesy and Geodynamics 2023年第3期14卷 212-222页

作者： Yihao Wu Junjie Wang Xiufeng He Yunlong Wu dongzhen Jia Yueqian Shen School of Earth Sciences and Engineering Hohai UniversityNanjing 211100China Key Laboratory of Geological Survey and Evaluation of Ministry of Education China University of GeosciencesWuhan 430079China

The global bathymetry models are usually of low accuracy over the coastline of polar areas due to the harsh climatic environment and the complex *** altimetric gravity data can be a supplement and plays a key role in bathymetry modeling over these *** Synthetic Aperture Radar(SAR)altimeters in the missions like CryoSat-2 and Sentinel-3A/3B can relieve waveform contamination that existed in conventional altimeters and provide data with improved accuracy and spatial *** this study,we investigate the potential application of SAR altimetric gravity data in enhancing coastal bathymetry,where the effects on local bathymetry modeling introduced from SAR altimetry data are quantified and ***,we study the effects on bathymetry modeling by using different scale factor calculation approaches,where a partition-wise scheme is *** numerical experiment over the South Sandwich Islands near Antarctica suggests that using SARbased altimetric gravity data improves local coastal bathymetry modeling,compared with the model calculated without SAR altimetry data by a magnitude of 3:55 m within 10 km of offshore ***,by using the partition-wise scheme for scale factor calculation,the quality of the coastal bathymetry model is improved by 7.34 m compared with the result derived from the traditional *** results indicate the superiority of using SAR altimetry data in coastal bathymetry inversion.

关键词： Coastal bathymetry inversion Synthetic aperture radar altimeter Sentinel-3A/3B CryoSat-2 Altimetric gravity data Scale factor

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In-situ growth of gold nanoparticles on electrospun flexible multilayered PVDF nanofibers for SERS sensing of molecules and bacteria

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Nano Research 2021年第12期14卷 4885-4893页

作者： dongzhen Chen Liang Zhang Pan Ning Haozhi Yuan Yu Zhang Meng Zhang Tao Fu Xinhai He Key laboratory of functional textile sensing fiber and irregular shape weaving technology School of Materials Science&EngineeringXi’an Polytechnic UniversityXi’an710048China Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’an710049China State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China Non-equilibrium Condensed Matter and Quantum Engineering Laboratory The Key Laboratory of Ministry of EducationSchool of ScienceXi’an Jiaotong UniversityXi’an710049China Department of Neurology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an710061China

Plasmonic surface of flexible multilayered nanofibers possesses special superiority for the surface-enhanced Raman scattering(SERS)sensing of molecules and microbial ***,the fabrication of flexible plasmonic nanofibers with high sensitivity and reproducibility is ***,we report a smart strategy for fabricating flexible plasmonic fibers,in which compact and homogeneous gold nanoparticles(Au NPs)are in-situ grown on the high-curvature surface of multilayered fibers of electrospun polyvinylidene fluoride(PVDF).Firstly,the surface of PVDF fibers is changed electrically,and Au seeds are deposited on the surface of PVDF fibers using electrostatic driving ***,a stable AuI_(4)−complex is formed employing coordination between I−and AuCl4−ions,which could decrease the reduction potential of AuCl4−and restrain the self-nucleation,and then the reduction reaction of AuI4−is initiated by introducing PVDF@Au seeds to pull down the barrier of potential ***,in-situ growth of AuNPs is generated on the high-curvature surface of PVDF nanofibers,and large-scale hotspots are generated by adjacent AuNPs coupling in the three-dimensional(3D)space of multilayered *** of PVDF@Au nanofibers also realizes the sensitive detection of thiram molecules(low limit of detection of 0.1 nM)and good reproducibility(relative standard deviation of 10.6%).Meanwhile,due to the multilayered construction of PVDF@Au nanofibers,a valid SERS signal on 3D surface of bacteria could be generated.3D distribution of hotspots on multilayered PVDF@Au nanofibers gives a clear advantage for SERS sensing of organic molecules and microbial cells.

关键词： electrospinning polyvinylidene fluoride(PVDF) in-situ growth of gold three-dimensional(3D)multilayered nanofibers flexible surface-enhanced Raman scattering(SERS)substrate bacteria sensing

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Active tectonic deformation around the Tarim Basin inferred from dense GPS measurements

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Geodesy and Geodynamics 2020年第6期11卷 418-425页

作者： dongzhen Wang Bin Zhao Jiansheng Yu Kai Tan Key Laboratory of Earthquake Geodesy Institute of SeismologyChina Earthquake AdministrationWuhan430071China

The surrounding area of the Tarim Basin is featured by active tectonic deformation and intense seismic *** study of the crustal deformation characteristics of this area will help revealing the role of the Tarim Basin in the crustal *** order to accurately obtain the deformation characteristics of this area,we firstly obtained the highly detailed and accurate three-dimensional(3D)crustal deformation velocities of the Tarim Basin and its surrounding areas through high-precision processing of existing Global Positioning System(GPS)***,the slip rate and strain rate fields of the main faults in the region were calculated based on the updated velocity *** strain rate of the Altyn Tagh fault is dominated by shear strain and the strike slip rate is 8-10 mm/*** strain rate between the Tien Shan and Tarim Basin is dominated by extrusion strain,and the extrusion rate is 4-6 mm/*** addition to the large shear strain,there is also a certain tensile strain in the Tibetan *** results show that the main driving force for the deformation of the Tien Shan is the northward thrust of the Tarim *** relative movement mode between the Tarim Basin and Tibetan Plateau mainly comprises the strike slip movement along the strike direction of the Altyn Tagh fault,with a small extrusion ***,the Tarim Basin has little influence on the northesouth shortening deformation of the Tibetan Plateau.

关键词： Tarim Basin Velocity field Strain rate Slip rate Crustal deformation

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