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insights on copper,manganese,and Nickel/ZsM-5 catalytic mechanisms for nitric oxides selective reduction with ammonia

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Carbon Resources Conversion 2022年第1期5卷 15-25页

作者： Cheng Liu Running Kang Feng Bin Xiaolin Wei kwun Nam Hui saravanan Kasipandi Kwan san Hui state Key Laboratory of High-Temperature Gas Dynamics Institute of MechanicsChinese Academy of SciencesBeijing 100190PR China school of Engineering science University of Chinese Academy of SciencesBeijing 100049PR China school of Automobile Engineering Wuhan University of TechnologyWuhan 430070PR China Department of Chemical and Metallurgical Engineering School of Chemical EngineeringAalto UniversityKemistintie 1 P.O.Box 16100Espoo FI-00076Finland institute of Applied Physics and Materials Engineering University of MacaoAvenida da UniversidadeTaipaMacaoPR China school of Engineering Faculty of ScienceUniversity of East AngliaNorwich Research Park NR47TJUnited Kingdom

The elucidation of the selective catalytic reduction mechanisms over state-of-the-art metal-promoted zeolites is essential for nitric oxides removal in automobile and stationary source *** this work,H/ZsM-5 catalysts modified with transition metals,including copper,manganese,and nickel,were prepared by using an incipient wetness impregnation method and were evaluated for the selective reduction of nitric oxides with *** indicate that copper/ZsM-5 exhibits the highest catalytic activity,with>90%nitric oxide conversion at a broad operation temperature window(221–445◦C).The nitric oxide conversion profiles of nickel/ZsM-5 shows two peaks that correspond to weak activity among the catalysts;the low-temperature peak(290◦C)was induced by nickel clusters dispersed on the ZsM-5 surface,while the high-temperature peak(460◦C)was assigned to the bulk nickel *** size of granular nickel monoxide crystallites with an exposed(202)plane is 2–30 nm,as confirmed by scanning electron microscopy,X-ray diffraction,and Transmission electron microscope ***-programmed reductions with hydrogen results testified that the copper and nickel cations,as the main species contributing to selective catalytic reduction,were reduced via Cu^(2+)/Cu^(+)→Cu^(0) and Ni^(2+)→Ni^(0) for copper/ZsM-5 and nickel/ZsM-5,respectively,while for the manganese/ZsM5,the Mn3+species in manganese clusters were reduced to Mn^(2+) by ***,temperatureprogrammed desorption coupled with mass spectrometer(TPD-Ms)and in situ diffuse reflectance infrared Fourier transform spectroscopy(DRiFTs)were comprehensively used to reveal the relationship between zeolite structure and catalysts’properties for improving selective catalytic *** results confirm that the ammonia is adsorbed and activated on both Brønsted and Lewis acid *** nitrous oxide desorbs in two stages during nitric oxide-TPD-Ms measurements,corresponding to the desorption of nitric

关键词： selective catalytic reduction Transition metals ZsM-5 Reaction mechanism Kinetics

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solution‑Processed Transparent Conducting Electrodes for Flexible Organic solar Cells with 16.61% Efficiency

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Nano-Micro Letters 2021年第3期13卷 39-52页

作者： Juanyong Wan Yonggao Xia Junfeng Fang Zhiguo Zhang Bingang Xu Jinzhao Wang Ling Ai Weijie song kwun Nam Hui Xi Fan Yongfang Li Ningbo institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201People’s Republic of China school of Physics and Electronics science Engineering Research Center of Nanophotonics and Advanced InstrumentMinistry of EducationEast China Normal UniversityShanghai 200241People’s Republic of China Beijing National Laboratory for Molecular sciences CAS Key Laboratory of Organic SolidsInstitution of ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Nanotechnology Center Institute of Textiles and ClothingThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China Department of Material science and Engineering Hubei UniversityWuhan 430062People’s Republic of China state Key Laboratory of Organic/inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoAvenida da UniversidadeTaipaMacao SAR 999078People’s Republic of China

Nonfullerene organic solar cells(OsCs)have achieved breakthrough with pushing the efficiency exceeding 17%.While this shed light on OsC commercialization,high-performance flexible OsCs should be pursued through solution ***,we report a solution-processed flexible OsC based on a transparent conducting PEDOT:Pss anode doped with trifluoromethanesulfonic acid(CF3sO3H).Through a low-concentration and low-temperature CF3sO3H doping,the conducting polymer anodes exhibited a main sheet resistance of 35Ωsq−1(minimum value:32Ωsq−1),a raised work function(≈5.0 eV),a superior wettability,and a high electrical *** high work function minimized the energy level mismatch among the anodes,hole-transporting layers and electron-donors of the active layers,thereby leading to an enhanced carrier *** solution-processed flexible OsCs yielded a record-high efficiency of 16.41%(maximum value:16.61%).Besides,the flexible OsCs afforded the 1000 cyclic bending tests at the radius of 1.5 mm and the long-time thermal treatments at 85°C,demonstrating a high flexibility and a good thermal stability.

关键词： solution-processed transparent conducting electrode Flexible organic solar cell PEDOT:Pss Trifluoromethanesulfonic acid doping solution processing

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Forecasting macro parameters representing the behavior of an applied multi-agent system

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international Journal of Modeling, simulation, and scientific Computing 2018年第6期9卷 57-71页

作者： L.s.Kuravsky s.i.Popkov Faculty of Computer science Moscow state University of Psychology and Education Moscow Russia

Under consideration is the method of probabilistic forecasting of macro parameters representing general patterns of an applied multi-agent system *** system introduces the game interaction between a set of agents and a *** behavior dynamics of such a system is described by a discrete-state discrete-time Markov random process and represented in the terms,which are considered convenient for interpretation and practical control of macro *** corresponding calculations are based on common characteristics of the initial *** probabilistic model of behavior of the system is generalized for the case of the mobile target and supplemented with formulas for the dynamical calculation of probabilistic distributions of the target’s defeat by the agents as well as the agent’s defeat by the target.

关键词： Multi-agent systems group control Markov process behavior control for applied multi-agent systems.

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The inhibitive study of egg shell powder on uns n08904 austenitic stainless steel corrosion in chloride solution

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Defence Technology（防务技术） 2018年第5期14卷 463-468页

作者： O.sanni A.P.i.Popoola O.s.i.Fayomi Tshwane University of Technology Department of Chemical Metallurgical and Materials Engineering

The effect of egg shell powder(Es) as an environmental friendly inhibitor was studied for its corrosion inhibitive tendency on N08904 austenitic stainless steel in simulated saline(3.5% NaCl) solution using potentiodynamic polarization, weight loss, and sEM/EDX at room temperature. The experimental data explained the effective performance of Es with values of 57%-100% inhibition efficiency, at 2 g-10 g inhibitor concentration from weight loss tests due to the inhibition of stainless steel. The electrochemical action was as a result of the ionized particles which inhibit the compound influencing the redox reaction mechanism causing surface corrosion. Es's best performance was achieved when 6 g of the inhibitor concentration was added to the saline medium. Corrosion rate value decreased progressively with the presence of inhibitor because of anions adsorption at the interface of the metal film. Corrosion potential(Ecorr) value was found to decrease from-0.3991 V to-0.3447 V in the presence of inhibitor at 2 g concentration, decreasing gradually to-0.2048 at 6 g inhibitor concentration. The compounds identified in the Es completely adsorbed onto the surface of stainless steel as observed from the EDX analysis. The Es adsorption on stainless steel surface obeyed Langmuir adsorption isotherm. A corroded morphology with pits was observed in the sEM results without Es which contrast the images obtained with the presence of Es.

关键词： Austenitic stainless steel Corrosion inhibition Egg shell Chloride Langmuir

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salt Accumulation and Physiology of Naturally Occurring Grasses in saline soils in Australia

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Pedosphere 2015年第4期25卷 501-511页

作者： Mohammad s.i.BHUiYAN Anantanarayanan RAMAN Dennis s.HODGKiNs David MiTCHELL Helen i.NiCOL soil Research Group Charles Sturt University Graham Centre for Agricultural innovation Orange Agricultural institute NSW Department of Primary Industries

salinity is a major soil contamination problem in Australia. To explore salinity remediation, we evaluated the concentrations of sodium （Na）, potassium （K）, magnesium （Mg）, and calcium （Ca） in roots and shoots and in the supporting soil of the naturally occurring grasses, Cynodon dactylon and Thinopyrurn ponticum, at two salt-affected sites, Gumble and Cundumbul in central-western New south Wales, Australia. The physiological parameters of the two grass species, including net photosynthetic rate （Pn）, stomatal conductance （gs）, and intercellular CO2 concentration （Ci）, were investigated using one mature leaf from C. dactylon and T. ponticum populations. increasing salinity levels in the topsoil had a significant influence on Ci and gs, whereas no significant effect occurred on Pn in C. dactylon and T. ponticum. The Pn values in C. dactylon and T. ponticum were greater at Cundumbul than at Gumble. The greater Mg concentration facilitated greater Pn in C. dactylon and T. ponticum populations at Cundumbul than Gumble. With increasing salinity levels in the soil, Na accumulation increased in C. dactylon and T. ponticum. The ratio between K and Na was ~ 1 in roots and shoots of both populations irrespective of the sites. Bioaccumulation factor （BF） and translocation factor （TF） results revealed that K and Na translocations were significantly higher in T. ponticum than in C. dactylon, whereas Ca and Mg translocations were significantly higher in C. dactylon than in T. ponticum. Accumulation of Na, K, Mg, and Ca ions was higher in T. ponticum than in C. dactylon; therefore, we suggest that T. ponticum as a greater salt accumulator than C. dactylon could be used for revegetation and phytoremediation of the salt-affected soils.

关键词： bioaccumulation factor intercellular CO2 concentration net photosynthetic rate phytoremediation revegetation soilcontamination stomatal conductance translocation factor

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sTUDY ON THE TENsiLE FATiGUE DAMAGE OF QUAsi-isOTROPiC COMPOsiTE LAMiNATEs

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Acta Metallurgica sinica(English Letters) 2003年第1期16卷 1-7页

作者： i.G.Kim i.s.Kim O.s.Kim YaragarraK.D.V.Prasad Department of Aerospace Engineering Chosun University 375 Seosuk-dong Dong-gu Gwangju 501-759Korea Department of Mechanical Engineering Mokpo National University 61 Dorimri Chunhke-myun Muan-gun Chonam 534-729 Korea Department of Mechanical Engineering Yosu National University San 96-1 Dunduck-dong Yosu Chon-nam 550-749 Korea school of Mech. & Med. Engineering Queensland University of Technology 2 George Street GPO Box 2434 Brisbane QLD 4001 Australia

Quasi-isotropic laminates have isotropic elastic properties in all in-plane directions. Therefore, this kind of laminate is widely used for structural elements. The simplest stacking sequence of quasi-isotropic laminates is [0/-60/60]s. When the direction of applied axial load to [0/-60/60]s laminate is inclined at a 30-degree angle, we have the other quasi-isotropic laminate [30/-30/90]s under axial load. The failure mechanisms of these two laminates are, however, entirely different from each other because these two laminates have different distribution of the interlaminar stresses. it was confirmed by tensile fatigue tests that the [0/-60/60]s laminate does not show any visible fatigue damage, but the [30/-30/90]s laminate develops edge-delamination during cyclic loading. The analytical results were in good agreement with the experimental results.

关键词： composite material delamination fatigue fracture mechanics interlaminar stress

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Combinatorial therapies for spinal cord injury repair

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Neural Regeneration Research 2025年第5期20卷 1293-1308页

作者： Carla s.sousa Andreia Monteiro António J.salgado Nuno A.silva Life and Health sciences Research institute(iCVs) School of MedicineUniversity of MinhoCampus de Gualtar-gualtarBragaPortugal iCVs/3B’s Associate Lab PT Government Associated LabCampus de Gualtar-gualtarBragaPortugal

spinal cord injuries have profound detrimental effects on individuals, regardless of whether they are caused by trauma or non-traumatic events. The compromised regeneration of the spinal cord is primarily attributed to damaged neurons, inhibitory molecules, dysfunctional immune response, and glial scarring. Unfortunately, currently, there are no effective treatments available that can fully repair the spinal cord and improve functional outcomes. Nevertheless, numerous pre-clinical approaches have been studied for spinal cord injury recovery, including using biomaterials, cells, drugs, or technological-based strategies. Combinatorial treatments, which target various aspects of spinal cord injury pathophysiology, have been extensively tested in the last decade. These approaches aim to synergistically enhance repair processes by addressing various obstacles faced during spinal cord regeneration. Thus, this review intends to provide scientists and clinicians with an overview of pre-clinical combinatorial approaches that have been developed toward the solution of spinal cord regeneration as well as update the current knowledge about spinal cord injury pathophysiology with an emphasis on the current clinical management.

关键词： electric stimulation neural tissue regeneration neuroprotection polytherapy spinal cord injury

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Effects of forced aeration on community dynamics of free and attached bacteria in copper sulphide ore bioleaching

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international Journal of Minerals,Metallurgy and Materials 2022年第1期29卷 59-69页

作者： Wei Chen shenghua Yin i.M.s.K.ilankoon Key Laboratory of Ministry of Education for High-Efficient Mining and safety of Metal University of Science and Technology BeijingBeijing 100083China school of Civil and Resource Engineering University of Science and Technology BeijingBeijing 100083China Discipline of Chemical Engineering School of EngineeringMonash UniversityJalan Lagoon SelatanBandar SunwaySelangor Darul Ehsan 47500Malaysia

Bacterial community dynamics and copper leaching with applied forced aeration were investigated during low-grade copper sulphide bioleaching to obtain better bioleaching *** illustrated that appropriate aeration improved bacterial concentrations and leaching *** highest bacterial concentration and Cu^(2+)concentration after 14-d leaching were 7.61×10^(7) cells·mL^(−1) and 704.9 mg·L^(−1),respectively,at aeration duration of 4 h·d^(−1).The attached bacteria played a significant role during bioleaching from 1 to 7 ***,free bacteria dominated the bioleaching processes from 8 to 14 *** phenomenon was mainly caused by the formation of passivation layer through Fe3+hydrolysis along with bioleaching,which inhibited the contact between the attached bacteria and ***,16s rDNA analysis verified the effect of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans on the bioleaching *** results demonstrate the importance of free and attached bacteria in bioleaching.

关键词： attached bacteria bioleaching forced aeration free bacteria low-grade copper sulphide ore

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Hybrid nanomaterial flow and heat transport in a stretchable convergent/divergent channel:a Darcy-Forchheimer model

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Applied Mathematics and Mechanics(English Edition) 2020年第5期41卷 699-710页

作者： G.K.RAMEsH s.A.sHEHZAD i.TLiLi Department of Mathematics K.L.E Society’s J.T.CollegeGadag 582101KarnatakaIndia Department of Mathematics COMSATS University IslamabadSahiwal 57000Pakistan Department for Management of science and Technology Development Ton Duc Thang UniversityHo Chi Minh City 758307Vietnam Faculty of Applied sciences Ton Duc Thang UniversityHo Chi Minh City 758307Vietnam

The flow behavior in non-parallel walls is an important factor of any physical model including cavity flow and canals, which is applicable for diverging/converging channel. The present communication explains that the flow of the hybrid nanomaterial subjected to the convergent/divergent channel has non-parallel walls. it is assumed that the hybrid nanomaterial movement is in the porous region. A Darcy-Forchheimer medium of porosity is considered to interpret the porosity features. A useful similarity function is adopted to get the strong ordinary coupled equations. Numerical solutions are achieved through the Runge-Kutta-Fehlberg(RKF) fourth-fifth order method, and they are validated with the existing results. Physical nature of the involving constraints is reported with the help of plots. it is explored that the velocity of divergent channel decreases, and convergent channel enhances for the higher solid volume faction. Further, the presence of inertia coefficient and porosity parameter amplifies the velocity at the wall.

关键词： hybrid nanoliquid channel Darcy-Forchheimer flow stretching wall numerical solution

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internal structure Visualization of Flow and Flame by Process Tomography and PLiF Data Fusion

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Journal of Thermal science 2018年第1期27卷 64-73页

作者： LiU J. LiU shi sUN s. PAN X i.H.i schlaberg North China Electric Power University 2 Beinong RoadChangping DistrictBeijing 102206China

To address the increasing demands on pollution control and energy saving, the study of low-emission and high-efficiency burners has been emphasized worldwide. swirl-induced environmental burners(EV-burners), have notable features aligned with these requirements. in this study, an EV burner is investigated by both an ECT system and an OH-PLiF system. The aim is to detect the structure of a flame and obtain more information about the combustion process in an EV burner. 3D ECT sensitivity maps are generated for the measurement and OH-PLiF images are acquired in the same combustion zone as for the ECT measurements. The experimental images of a flame by ECT are in good agreement with the OH radical distribution pictures captured by OH-PLiF, which provide a mutual verification of the visualization method.

关键词： Tomographic measurement EV burner ECT OH-PLiF

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