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Alloy/layer double hydroxide interphasic synergy via nano-heterointerfacing for highly reversible co_(2)redox reaction in Li-co_(2)batteries

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nano Research 2024年第6期17卷 5206-5215页

作者： Tianzhen Jian Wenqing ma.Jiagang Hou Jianping ma.Xianhong Li Haiyang Gao Caixia Xu Hong Liu Institute for Advanced Interdisciplinary Research(iAIR) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongSchool of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022China Kyiv college at Qilu University of Technology Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China state Key Laboratory of Crystal ma.erials Shandong UniversityJinan 250100China shandong sacred sun Power sources co. Ltd.Qufu 273100China

Li-co_(2)batteries are among the most intriguing techniques for balancing the carbon cycle,but are challenged by the annoyed thermodynamic barrier of the Li_(2)co_(3)decomposition ***,we demonstrate the electrocatalytic performa.ces of two-dimensional(2D)coAl-layer double hydroxide(LDH)nanosheets can be significantly improved by trans-dimensional crosslinking with three-dimensional(3D)multilevel nanoporous(MP)-RucoAl alloy(MP-RucoAl alloy⊥coAl-LDH).The MP-RucoAl alloy⊥coAl-LDH with multiscale pore channels and abundant nano-heterointerface is directly prepared by controllable etching Al from a Ru-co-Al ma.ter alloy along with simultaneous partial oxidization of Al and co *** MP-RucoAl is composed of various intermetallic compounds and Ru with abundant grain boundaries,and forms numerous heterointerface with 2D coAl-LDH *** multiscale porous metallic network benefits ma.s and electron transportation as well as discharge product storage and enables a rich multiphase reaction *** situ differential electrochemical ma.s spectrometry shows that the ma.s-to-charge ratio in the charging process is~0.733 which is consistent with the theoretical value of 3/4,stating that the reversible co-decomposition of Li_(2)co_(3)and C can be achieved with the MP-RucoAl alloy⊥*** Ketjen black(KB)/MP-RucoAl⊥coAl-LDH battery demonstrates a high cyclability for over 2270 h(227 cycles)with a lower voltage gap stabilized at~1.3 V at 200 ma.g^(−1).Our findings here provide useful guidelines for developing high efficiency transition metal based electrocatalysts by coupling with conductive porous substrate for impelling the development of practical Li-co_(2)battery systems.

关键词： heterojunction interface nanoporous Li-co_(2)battery dealloying

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Evolution of Diagenetic Fluid of the Dawsonite-Bearing sandstone in the Jiyang depression,Eastern China

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Journal of Ocean University of China 2024年第1期23卷 80-98页

作者： LI Fulai ma.Wenkuan ZHAnG Chun WAnG Kaining national Key Laboratory of deep Oil and Gas China University of Petroleum(East China)Qingdao 266580China Laboratory for ma.ine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China shandong Geological Exploration Institute of China Chemical Geology and Mine Bureau Jinan 250013China

Based on the petrology,isotope geochemistry and fluid inclusions analysis,we established the evolutionary mode of the diagenetic fluid of dawsonite-bearing sandstone in the Jiyang ***-bearing sandstone is characterized by double injection of co_(2)and oil-gas in the Jiyang depression that have experienced a relatively complex diagenetic fluid evolution *** diagenetic sequence of secondary minerals involves secondary enlargement of quartz,kaolinite,first-stage calcite,dawsonite,second-stage calcite,ferrocalcite,dolomite and *** charging in the dawsonite-bearing sandstone occurred at around 2.6–0 *** co_(2)charging event occurred during Dongying tectonism,forming the Pingfangwang co_(2)gas reservoir,which provided an abundant carbon source for dawsonite *** and oxygen isotopic compositions of dawsonite demonstrate that co_(2)forming the dawsonite was of an inorganic origin derived from the ma.tle,and that water mediating the proc-ess during dawsonite precipitation was sequestered brine with a fluid temperature of 82℃.The evolutionary sequence of the diagenetic fluid in the dawsonite-bearing sandstone was:alkaline syngenetic fluids,weak alkaline fluids during organic acid forma.tion,acidic fluids in the early stage of co_(2)injection,alkaline fluids in the late stage of co_(2)injection,and weak alkaline fluids during oil and gas *** mode indicates an increase in-Hco_(3)because of the co_(2)injection,and the loss of Ca^(2+)and Mg^(2+)due to the precipitation of carbonate ***,the evolutionary mode of diagenetic fluids is in good agreement with high Hco_(3)^(-),low Ca^(2+)and low Mg^(2+)composition of the present forma.ion water in the dawsonite-bearing sandstone.

关键词： evolution of diagenetic fluid dawsonite co_(2)injection and hydrocarbon charging mineral diagenetic sequence iso-topic geochemistry fluid inclusions

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summer Atmospheric Water Cycle under the Transition Influence of the Westerly and summer Monsoon over the Yarlung Zangbo River Basin in the southern Tibetan Plateau

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Advances in Atmospheric sciences 2024年第5期41卷 830-846页

作者： Qianhui ma.Chunyan ZHAnG Donghai WAnG Zihao PAnG school of Atmospheric sciences Sun Yat-sen UniversityGuangdong Province Key Laboratory for Climate Change and Natural Disaster StudiesKey Laboratory of Tropical Atmosphere-Ocean SystemMinistry of EducationZhuhai 519082China southern ma.ine science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China Guangdong Meteorological Data Center Guangdong Meteorological ServiceGuangzhou 510080China national Observation and Research station of coastal Ecological Environments in ma.ao Macao Environmental Research InstituteMacao University of Science and TechnologyMacao SAR 999078China national Meteorological Informa.ion Center China Meteorological AdministrationBeijing 100081China

This study compares the summer atmospheric water cycle,including moisture sources and consumption,in the upstream,midstream,and downstream regions of the Yarlung Zangbo River Basin in the southern Tibetan *** evolutions of moisture properties under the influence of the westerly and summer southerly monsoon are examined using 5-yr multi-source measurements and ERA5 reanalysis *** that moisture consumption in this study is associated with clouds,precipitation,and diabatic *** to the midstream and downstream regions,the upstream region has less moisture,clouds,and precipitation,where the moisture is brought by the *** early August,the vertical wet advection over this region becomes enhanced and generates more high clouds and *** midstream region has moisture carried by the westerly in June and by the southerly monsoon from July to *** higher vertical wet advection ma.imum here forms more high clouds,with a precipitation peak in early *** downstream region is ma.nly affected by the southerly-driven wet *** rich moisture and strong vertical wet advection here produce the most clouds and precipitation among the three regions,with a precipitation peak in late *** height of the ma.imum moisture condensation is different between the midstream region(325 hPa)and the other two regions(375 hPa),due to the higher upward motion ma.imum in the midstream *** diabatic heating structures show that stratiform clouds dominate the upstream region,stratiform clouds and deep convection co-exist in the midstream region,and deep convection systems characterize the downstream region.

关键词： Yarlung Zangbo River Basin atmospheric water cycle constrained variational analysis moisture source and consumption

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Analysis of multiple-faults of high-voltage circuit breakers based on non-negative ma.rix decomposition

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Global Energy Interconnection 2024年第2期7卷 179-189页

作者： Yongrong Zhou Zhaoxing ma.Hao Chen Ruihua Wang state Key Laboratory of Technology and Equipment for defense against Power system Operational Risks Nanjing 211106P.R.China nari Group co. Ltd.Nanjing 211106P.R.China Qingdao University of Technology School of Information and Control EngineeringQingdao 266520P.R.China state Grid nanjing Power supply company Nanjing 211000P.R.China

High-voltage circuit breakers are the core equipment in power networks,and to a certain extent,are related to the safe and reliable operation of power ***,their core components are prone to mechanical *** study proposes a component separation method to detect multiple mechanical faults in circuit breakers that can achieve online real-time ***,a model and strategy are presented for obtaining mechanical voiceprint signals from circuit ***,the component separation method was used to decompose the voiceprint signals of multiple faults into individual component *** on this,the recognition of the features of a single-fault voiceprint signal can be ***,multiple faults in high-voltage circuit breakers were identified through an experimental simulation and verification of the circuit breaker voiceprint signals collected from the substation *** research results indicate that the proposed method exhibits excellent performa.ce for multiple mechanical faults,such as spring structures and loose internal components of circuit *** addition,it provides a reference method for the real-time online monitoring of high-voltage circuit breakers.

关键词： High voltage circuit breaker signal separation Monitor Multiple faults Power system

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Geochemical characteristics,generation,and evolution mechanism of coalbed methane in the south-western Ordos Basin,China

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Frontiers of Earth science 2024年第2期18卷 296-311页

作者： Yabing LIn Yong QIn Dongmin ma.shengquan WAnG college of Geology and Environment Xi’an University of Science and TechnologyXi’an 710054China Key Laboratory of coalbed Methane Resource and Reservoir Forma.ion Process(the Ministry of Education) China University of Mining and TechnologyXuzhou 221008China shaanxi Provincial Key Laboratory of Geological support for coal Green Exploitation Xi’an 710054China

The south-western Ordos Basin is rich in low-middle rank coalbed methane(CBM)resources;while the geochemical characteristics and genetic mechanism of CBM are not ***,according to geological and geochemical test data from gas and coal seam water from CBM wells in Bingchang,Jiaoxun,Huangling,Yonglong,and Longdong minging areas,we systema.ically studied the geochemical characteristics,generation,and evolution mechanism of CBM in Jurassic Yan’an Forma.ion in the south-western Ordos *** results show that the CH4 content of whole gas is in the range of 42.01%-94.72%.The distribution ranges of theδ^(13)C-CH_(4)value is−87.2‰to−32.5‰,indicating diverse sources of thermogenic gas and biogenic *** microbial methane is ma.nly generated by a co_(2)reduction pathway,with certain methyl-type fermentation ***δ^(13)C-CH_(4)has a positive correlation with burial depth,indicating the obvious fractionation of *** relationship between the genetic types and burial depth of the CBM reservoir indicates that the favorable depth of secondary biogenic gas is less than 660 *** Late Cretaceous Yanshanian Movement led to the uplift of the Ordos Basin,and a large amount of thermogenic gas escaped from the edge of the *** the Paleogene Period,the coal reservoir in the basin ma.gin has received recharge from atmospheric precipitation,which is favorable for the forma.ion of secondary biogenic *** deep area,generally under 1000 m,ma.nly contains residual thermogenic *** intermediate transition zone is mixed *** by the tectonic background,the genetic types of CBM in different mining areas are controlled by the coupling of burial depth,coal rank,and hydrogeological *** Binchang mining area contains biogenic gas,and the development of CBM has achieved initial success,indicating that similar blocks with biogenic gas forma.ion conditions is key to the efficient development of *** research results provide a scientific basis for

关键词： coalbed methane stable isotopes geochemistry generation and evolution mechanism Ordos Basin

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developing core-shell nano-structures in FeCrAl-ODs Ferritic Alloys with the co-Addition of ni and Zr

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Acta Metallurgica sinica(English Letters) 2024年第2期37卷 364-372页

作者： Wenquan Ding Jieli ma.Yong Jiang Yiren Wang Huiqun Liu Key Laboratory for nonferrous ma.erials of Ministry of Education School of Materials Science and EngineeringCentral South UniversityChangsha410083China national Key Laboratory for Powder Metallurgy Central South UniversityChangsha410083China

A new ni+Zr co-alloyed FeCrAl-ODs(oxide-dispersion-strengthened)ferritic alloy was fabricated by ball-milling and *** electron microscopy and atom probe tomography,the dispersive forma.ion of high density core-shelled nano-particles of various sizes was confirmed with a common B2-niAl *** which,median-sized nano-particles(20-50 nm)typically have an Y_(4)Al_(2)O_(9)nano-core ofnm,ultra-fine nano-particles(nm have an Y_(4)Zr_(3)O_(12)nano-core ofnm,and larger-sized nano-particles(50-100 nm)incorporate an ultra-fine Y_(4)Al_(2)O_(9)nano-core and a few ultra-fine Y_(4)Zr_(3)O_(12)*** these nano-phases were highly coherent with the ferritic *** large Y--Al-O nano-oxides were *** total number density of ultra-fine nano-particles was estima.ed as~2×10^(23)m^(-3)with a mean size of 6.3 nm only,and accordingly,the new alloy achieved an excellent combination of strength and ductility at high temperatures.

关键词： FeCrAl Oxide-dispersion-strengthened(ODs)alloy Mechanical alloying nano-oxides core-shell

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Thermogravimetric characteristics of corn straw and bituminous coal copyrolysis based the ilmenite oxygen carriers

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Chinese Journal of Chemical Engineering 2024年第4期68卷 8-15页

作者： Pengxing Yuan Xiude Hu Jingjing ma.Tuo Guo Qingjie Guo college of Chemical Engineering Qingdao University of Science&TechnologyQingdao 266042China state Key Laboratory of High-efficiency Utilization of coal and Green Chemical Engineering Ningxia UniversityYinchuan 750021China

Herein,the co-pyrolysis reaction characteristics of corn straw(Cs)and bituminous coal in the presence of ilmenite oxygen carriers(OCs)are investigated via thermogravimetry coupled with ma.s *** results reveal that the participation of OCs weakens the devolatilization intensity of *** the Cs blending ratio iss positive synergistic *** fitting results according to the coats-Redfern integral method show that the solid-solid interaction between OCs and coke changes the reaction kinetics,enhancing the co-pyrolysis reactivity at the high-temperature zone(750-950C).The synergistic effect is most prominent at a 30%Cs blending ratio,with copyrolysis activation energy in the range of 26.35-40.57 kJ·mol^(-1).

关键词： Oxygen carrier co-pyrolysis Bioma.s coal

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Fast fixed-time three-dimensional terminal guidance with non-concave trajectory constraint

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Chinese Journal of Aeronautics 2024年第3期37卷 208-218页

作者： Youmin GOnG Yanning GUO Yueyong LYU Dongyu LI Guangfu ma department of control science and Engineering Harbin Institute of TechnologyHarbin 150001China school of Cyber science and Technology Beihang UniversityBeijing 100191China

Focusing on the non-concave trajectory constraint,a sliding-mode-based nonsingular feedback fast fixed-time three-dimensional terminal guidance of rotor unma.ned aerial vehicle landing,planetary landing and spacecraft rendezvous and docking terminal phase with external disturbance is investigated in this ***,a fixed-time observer based on real-time differentiator is developed to compensate for the external disturbance,whose estima.ion error can converge to zero after a time independent of the initial ***,a sliding surface ensuring fixed-time convergence is *** sliding surface can guarantee that the vehicle achieves a non-concave trajectory,which is better for avoiding collision and ma.ntaining the visibility of the landing site or docking ***,the nonsingular guidance ensuring the fixed-time convergence of the sliding surface is proposed,which is continuous and chatter *** last,three numerical simulations of ma.s landing are performed to validate the effectiveness and correctness of the designed scheme.

关键词： Three-dimensional Terminal guidance non-concave trajectory constraint Fast fixed-time control sliding mode control

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The prediction of projectile-target intersection for moving tank based on adaptive robust constraint-following control and interval uncertainty analysis

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defence Technology（防务技术） 2024年第1期31卷 351-363页

作者： cong Li Xiuye Wang Yuze ma.Fengjie Xu Guolai Yang The school of Mechanical Engineering Nanjing University of Science and TechnologyNanjing290014PR China Inner Mongolia north Heavy Industries co. Ltd.Baotou014033PR China nanjing Chenguang Group co. Ltd.Nanjing210006PR China

To improve the hit probability of tank at high speed,a prediction method of projectile-target intersection based on adaptive robust constraint-following control and interval uncertainty analysis is *** method proposed provides a novel way to predict the impact point of projectile for moving ***,bidirectional stability constraints and stability constraint-following error are constructed using the Udwadia-Kalaba theory,and an adaptive robust constraint-following controller is designed considering ***,the exterior ballistic ordinary differential equation with uncertainties is integrated into the controller,and the pointing control of stability system is extended to the impact-point control of ***,based on the interval uncertainty analysis method combining Chebyshev polynomial expansion and affine arithmetic,a prediction method of projectile-target intersection is ***,the co-simulation experiment is performed by establishing the multi-body system dynamic model of tank and ma.hema.ical model of control *** results demonstrate that the prediction method of projectile-target intersection based on uncertainty analysis can effectively decrease the uncertainties of system,improve the prediction accuracy,and increase the hit *** adaptive robust constraint-following control can effectively restrain the uncertainties caused by road excitation and model error.

关键词： Tank stability control constraint-following Adaptive robust control Uncertainty analysis Prediction of projectile-target intersection

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A novel defender-Attacker-defender Model for Resilient Distributed Generator Planning with network Reconfiguration and dema.d Response

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Energy Engineering 2024年第5期121卷 1223-1243页

作者： Wenlu Ji Teng Tu nan ma nanjing Power supply company State Grid Jiangsu Electric Power Co.Ltd.Nanjing210019China

To improve the resilience of a distribution system against extreme weather,a fuel-based distributed generator(DG)allocation model is proposed in this *** this model,the DGs are placed at the planning *** an extreme event occurs,the controllable generators form temporary microgrids(MGs)to restore the load ***,a dema.d response program(DRP)mitigates the imbalance between the power supply and dema.d during extreme *** cope with the fault uncertainty,a robust optimization(RO)method is applied to reduce the long-term investment and short-term operation *** optimization is formulated as a tri-level defenderattacker-defender(DAD)*** the first level,decision-ma.ers work out the DG allocation scheme;at the second level,the attacker finds the optima. attack strategy with ma.imum dama.e;and at the third level,restoration measures,namely distribution network reconfiguration(DnR)and dema.d response are *** problem is solved by the nested column and constraint generation(nC&CG)method and the model is validated using an IEEE 33-node *** studies validate the effectiveness and superiority of the proposed model according to the enhanced resilience and reduced cost.

关键词： Distribution system resilience defender-attacker-defender distributed generator dema.d response microgrids forma.ion

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