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Linker gadolinium as charge channel and singlet oxy.en activation site in graphitic carbon nitride for enhancing photocataly.ic decomposition of tetracy.line

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Journal of Rare Earths 2024年第5期42卷 827-837,I0001页

作者： Jianmin Luo Wenqin Li Xinglei Wang eric Lichtfouse Donglan Huang Xiaoy.an Chen y. Zhang Lejie zhu Chuany. Wang College of Chemistry.and Civil Engineering Shaoguan UniversityShaoguan512005China Key.Laboratory.of Pollutant Chemistry.and Environmental Treatment College of Chemistry and Environmental ScienceYili Normal UniversityYining 835000China College of Chemistry.and Environmental Science Kashi UniversityKashi844006China CNRS IRDINRAEColl FranceCEREGEAix-Marseille UniversityAix en Provence13100France Guangzhou Institute of Industrial Intelligence(GIl) Guangzhou511400China

Reactive oxy.en species are essential in photocataly.ic water *** this paper,Gd doped carbon nitride(CN)photocataly.ts were prepared by.simple thermal poly.erization for the photocataly.ic degradation of tetracy.line under visible light *** photodegradation rate of *** is as high as 95%in 18 min,and the photocataly.ic performance is much higher than that of *** improvement of photocataly.ic performance is mainly.attributed to the fact that Gd ion implantation directly.provides active sites for oxy.en activation and induces the formation of N *** results of characterizations show that the introduction of Gd in CN can improve the conversion ability.of activated oxy.en,carrier separation and energy.band structure ***,1.0GdCN photocataly.t can be employ.d for efficient photocataly.ic sy.thesis of ***,three way. of photocataly.ic degradation of tetracy.line were revealed by.high performance liquid chromatography.ass *** work provides insights into the doping strategy.of CN to improve the production of reactive oxy.en species for environmental remediation.

关键词： Photocataly.is Tetracy.line Hy.rogen peroxide Gd doped CN Singlet oxy.en Rare earths

Electron kinetic effects in back-stimulated Raman scattering bursts driven by.broadband laser pulses

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Matter and Radiation at Extremes 2024年第4期9卷 54-67页

作者： Q.K.Liu L.Deng Q.Wang X.Zhang F.Q.Meng y.P.Wang y.Q.Gao H.B.Cai S.P.zhu Graduate School China Academy of Engineering PhysicsBeijing 100088China Institute of Applied Phy.ics and Computational Mathematics Beijing 100094China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230026China Shanghai Institute of Laser Plasma Shanghai 201800China HEDPS Center for Applied Physics and TechnologyPeking UniversityBeijing 100871China School of Phy.ics Zhejiang UniversityHangzhou 310027China

We examine electron kinetic effects in broadband-laser-driven back-stimulated Raman scattering(BSRS)bursts using particle-in-cell *** bursts occur during the nonlinear stage,causing reflectivity.spikes and generating large numbers of hot ***-duration simulations are performed to observe burst events,and a simplified model is developed to eliminate the interference of the broadband laser’s random intensity.*** the simplified model,we isolate and characterize the spectrum of electron plasma *** spectrum changes from a sideband structure to a turbulence-like structure during the burst.A significant asy.metry.in the spectrum is *** asy.metry.is amplified and transferred to electron phase space by.high-intensity.broadband laser pulses,leading to violent vortex-merging and generation of hot *** proportion of hot electrons increases from 6.76%to 14.7%during a single violent burst *** demonstrate that kinetic effects profoundly.influence the BSRS evolution driven by.broadband lasers.

关键词： scattering kinetic simplified

Wood of trees:Cellular structure,molecular formation,and genetic engineering

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Journal of Integrative Plant Biology 2024年第3期66卷 443-467页

作者： y.ngy.ng zhu Laigeng Li State Key.Laboratory.of Herbage Improvement and Grassland Agro-ecosy.tems and College of Ecology Lanzhou UniversityLanzhou 730000China National Key.Laboratory.of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China

Wood is an invaluable asset to human society.due to its renewable nature,making it suitable for both sustainable energy.production and material ***,wood derived from forest trees play. a crucial role in sequestering a significant portion of the carbon dioxide fixed during photosy.thesis by.terrestrial ***,with the expansion of the global population and ongoing industrialization,forest coverage has been substantially.decreased,resulting in significant challenges for wood production and *** production practices have changed away.from natural forests toward plantation ***,understanding the underly.ng genetic mechanisms of wood formation is the foundation for developing high-quality.fast-growing plantation *** ideal forest trees for wood production using genetic technologies has attracted the interest of *** studies have been carried out in recent y.ars on the molecular,genetic,and cell-biological mechanisms of wood formation,and considerable progress and findings have been *** studies and findings indicate enormous possibilities and prospects for tree *** review will outline and assess the cellular and molecular mechanisms of wood formation,as well as studies on genetically.improving forest trees,and address future development prospects.

关键词： cambium cell wall Populus wood formation xy.em

Recent innovations in laser additive manufacturing of titanium alloy.

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International Journal of Extreme Manufacturing 2024年第3期6卷 2-37页

作者： Jinlong Su Fulin Jiang Jie Teng Lequn Chen Ming y.n Guillermo Requena Lai-Chang Zhang y.Morris Wang Ily. V Okulov Hongmei zhu Chaolin Tan College of Materials Science and Engineering Hunan UniversityChangsha 410082People’s Republic of China Singapore Institute of Manufacturing Technology.SIM Tech) Agency for ScienceTechnology and Research(A∗STAR)5 Cleantech LoopSingapore 636732Singapore Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Institute of Materials Research German Aerospace Center(DLR)Linder Höhe51147 CologneGermany Centre for Advanced Materials and Manufacturing Edith Cowan University270 Joondalup DriveJoondalupPerthWestern Australia 6027Australia Department of Materials Science and Engineering University of CaliforniaLos AngelesCA 900095United States of America Leibniz Institute for Materials Engineering-IWT Badgasteiner Str.328359 BremenGermany Faculty.of Production Engineering University of BremenBadgasteiner Str.128359 BremenGermany Key.Laboratory.of Hunan Province of Equipment Safety.Service Technology.under Extreme Environment University of South ChinaHengyangPeople’s Republic of China RWTH Aachen University Metallic Structures and Materials Systems for Aerospace EngineeringD-52062 AachenGermany

Titanium(Ti)alloy. are widely.used in high-tech fields like aerospace and biomedical *** additive manufacturing(LAM),as an innovative technology.is the key.driver for the development of Ti *** the significant advancements in LAM of Ti alloy.,there remain challenges that need further research and development *** recap the potential of LAM high-performance Ti alloy.this article sy.tematically.reviews LAM Ti alloy. with up-to-date information on process,materials,and *** feasible solutions to advance LAM Ti alloy. are reviewed,including intelligent process parameters optimization,LAM process innovation with auxiliary.fields and novel Ti alloy. customization for *** auxiliary.energy.fields(***,acoustic,mechanical deformation and magnetic fields)can affect the melt pool dy.amics and solidification behaviour during LAM of Ti alloy.,altering microstructures and mechanical *** kinds of novel Ti alloy. customized for LAM,like peritecticα-Ti,eutectoid(α+β)-Ti,hy.rid(α+β)-Ti,isomorphousβ-Ti and eutecticβ-Ti alloy. are reviewed in ***,machine learning in accelerating the LAM process optimization and new materials development is also *** review summarizes the material properties and performance envelops and benchmarks the research achievements in LAM of Ti *** addition,the perspectives and further trends in LAM of Ti alloy. are also highlighted.

关键词： additive manufacturing titanium alloy. auxiliary.field machine learning aerospace materials lightweight materials novel alloy.

Dual-functional poly.2-methy.-2-oxazoline)/poly.2-(dimethy.amine)ethy. methacry.ate)mixed brushes with switchable protein adsorption and antibacterial properties

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Chinese Journal of Chemical Engineering 2024年第2期66卷 19-30页

作者： Kang He Liangy. zhu y.nmei Wang CAS Key.Laboratory.of Soft Matter Chemistry Department of Polymer Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China

Herein,binary.mixed brushes consisting of poly.2-methy.-2-oxazoline)(PMOXA)and poly.2-(dimethy.amine)ethy. methacry.ate)(PDMAEMA)with different chain lengths were fabricated by.successive grafting of NH_(2)-terminated PMOXA and SH-terminated PDMAEMA onto poly.opamine-anchored *** mixed-brush coating was characterized by.variable-angle spectroscopic ellipsometry.X-ray.photoelectron spectroscopy.Fourier transform infrared spectroscopy.zeta potential measurements,water contact angle,and atomic force *** mixed brushes showed tunable surface charge,wettability.and surface roughness,depending on the degree of PDMAEMA swelling under vary.ng pH and ionic strength(Ⅰ).Then the adsorption behaviors of pepsin,bovine serum albumin(BSA),γ-globulin,and ly.ozy.e,four very.different proteins with regard to isoelectric point,on the mixed brushes coating were studied by.using fluorescence microscopy.and surface plasmon *** the chain length of PDMAEMA was about twice as long as PMOXA,the mixed brushes not only.had high adsorption capacity.for pepsin,BSA,and y.globulin but also had a desorption efficiency.of 86.9%,87.1%,and 93.5%,*** is explained that electrostatic attraction between the protonated PDMAEMA and positively.charged acidic proteins(pepsin and BSA,whose isoelectric points were below the pK_(a) of PDMAEMA)would drive the intensive adsorption(at pH 3,I=10^(-3)mol·L^(-1)for pepsin,and pH 5,I=10^(-5)mol·L^(-1)for BSA),while desorption was dominated by.the hy.rophilic PMOXA when PDMAEMA was shrinking(at pH 7,I=10^(-1)mol·L^(-1)for pepsin,and pH 9,I=10^(-1)mol·L^(-1)for BSA).Furthermore,the isoelectric precipitation led to the adsorption of neutral protein(γ-globulin,whose isoelectric point was near the pK_a of PDMAEMA)at pH 7,I=10^(-5)mol·L^(-1),while electrostatic repulsion and antifouling PMOXA triggered the desorption of y.globulin at pH 3,I-10^(-1)mol·L^(-1).However,alkaline protein(ly.ozy.e,whose isoelectric point was higher than

关键词： Switchable conformation transition Controllable protein adsorption Mixed brushes Isoelectric point Antibacterial surface

High-efficiency.cry.talline white organic lightemitting diodes

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Light(Science & Applications) 2024年第4期13卷 747-759页

作者： y.jun Liu Feng zhu y.e Wang Donghang y.n State Key.Laboratory.of Poly.er Phy.ics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China. School of Applied Chemistry.and Engineering University of Science and Technology of ChinaHefei 230026China. State Key.Laboratory.of Supramolecular Structure and Materials Jilin UniversityChangchun 130012China

Cry.talline white organic light-emitting diodes(C-WOLEDs)are promising candidates for lighting and display.*** is urgently.necessary.however,to develop energy.saving and high-efficiency.C-WOLEDs that have stable and powerful emission to meet commercial ***,we report a cry.talline host matrix(CHM)with embedded nanoaggregates(NA)structure for developing high-performance C-WOLEDs by.employ.ng a thermally.activated delay.d fluorescence(TADF)material and orange phosphorescent dopants(Phos.-D).The CHM-TADFNA-D WOLED exhibit a remarkable EQE of 12.8%,which is the highest performance WOLEDs based on cry.talline *** device has a quick formation of excitons and a well-designed energy.transfer process,and possesses a fast ramping of luminance and current *** to recently.reported high-performance WOLEDs based on amorphous material route,the C-WOLED achieves a low series-resistance Joule-heat loss ratio and an enhanced photon output,demonstrating its significant potential in developing the next-generation WOLEDs.

关键词： diodes dopant cry.talline

Effect of y.trium and manganese addition on cataly.ic soot combustion activity.and anti-high-temperature stability.of CeO_(2) cataly.t

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Journal of Rare Earths 2024年第2期42卷 334-344,I0004页

作者： y. zhu Xingy. Liu Wei Shi Jia Li Changbing y. Ruimei Fang Huifeng zhu Shanhu Chen Li Lan College of Chemistry.Biology.and Environment Yuxi Normal UniversityYuxi 653100China Institute of Biology.and Environmental Engineering Yuxi Normal UniversityYuxi 653100China College of Environment and Resources Chongqing Technology and Business UniversityChongqing 400067China College of Chemistry.and Chemical Engineering Jiangxi Science and Technology Normal UniversityNanchang 330013China College of Materials and Mechatronics Jiangxi Science and Technology Normal UniversityNanchang 330013China

In order to analy.e the influence of the addition of y.trium and manganese on the soot combustion performance and high temperature stability.of CeO_(2) cataly.t,a series of y.Mn-modified CeO_(2) cataly.ts were *** effects of structural properties,textural properties,oxy.en vacancies,Ce^(3+),surface adsorbed oxy.en species,reduction properties and desorption properties of oxy.en species on the activity.were analy.ed by.various characterization *** results of the activity.test show that the addition of manganese is beneficial to enhancement of the activity.while the addition of y.trium increases the amount of reactive oxy.en species,but decreases the *** aging at 700℃,the activity.of the CeMn cataly.t decreases most sharply.while the cataly.ic activity.of the Cey.cataly.t can be maintained to a certain ***,the addition of y.trium and manganese at the same time can stabilize the *** fundamental reason is that y.trium and manganese move to the surface of the solid solution after aging,which increases the reduction performance of the cataly.t,thus contributing to the increase of *** the activity.of Cey.n cataly.t decreases after aging at 800℃,it is still higher than that of other cataly.ts aged at 700℃.

关键词： CeO_(2)cataly.t Soot cataly.ic combustion Diesel pollution control Rare earths High temperature stability Low temperature reduction performance

Cataly.ic enantioselective N-sily.ation of sulfoximine

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Chinese Chemical Letters 2024年第4期35卷 352-356页

作者： Xingfen Huang Jiefeng zhu Chuan He Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of CatalysisSouthern University of Science and TechnologyShenzhen 518055China Key.Laboratory.of Organosilicon Chemistry.and Material Technology.of Ministry.of Education Hangzhou Normal UniversityHangzhou 311121China

A rhodium/diphosphine-cataly.ed asy.metric cross-dehy.rogenative coupling between sulfoximines and dihy.rosilanes has been achieved. This is the first report on the enantioselective N-sily.ation of sulfoximines. The protocol gives access to a variety.of Si-stereogenic N-sily.ated sulfoximines in decent y.eld(up to 99%) with excellent stereoselectivity.up to 99%), featuring high atom economy. and a cleaner manner with H2as the sole by.roduct. The obtained bis-Si-stereogenic monohy.rosilane product can be further converted into the corresponding chiral poly.er with pendant sulfoximine groups.

关键词： N-Sily.ation of sulfoximine Chiral sily.amine Si-stereogenic silanes Si-CADC Asy.metric cataly.is

Fast efficient photon deceleration in plasmas by.using two laser pulses at different frequencies

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Matter and Radiation at Extremes 2024年第3期9卷 11-18页

作者： y.X.Wang X.L.zhu S.M.Weng P.Li X.F.Li H.Ai H.R.Pan Z.M.Sheng Key.Laboratory.for Laser Plasmas(moe) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai 200240China Research Center of Laser Fusion of China Academy.of Engineering Phy.ics MianyangSichuan 621900China State key.Laboratory.of High Field Laser Phy.ics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Tsung-dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China

The generation of ultrashort high-power light sources in the mid-infrared(mid-IR)to terahertz(THz)range is of interest for applications in a number of fields,from fundamental research to biology.and *** conventional laser technology.photon deceleration in plasma wakes provides an alternative approach to the generation of ultrashort mid-IR or THz ***,we present a photon deceleration scheme for the efficient generation of ultrashort mid-IR or THz pulses by.using an intense driver laser pulse with a relatively.short wavelength and a signal laser pulse with a relatively.long *** signal pulse trails the driver pulse with an appropriate time delay.such that it sits at the front of the second wake bubble that is driven by.the driver *** to its relatively.long wavelength,the signal pulse will be subjected to a large gradient of the refractive index in the plasma wake ***,the photon deceleration in the plasma wake becomes faster and more efficient for signal pulses with longer *** greatly.enhances the capacity.and efficiency.of photon deceleration in the generation of ultrashort high-power light sources in the long-wavelength IR and THz spectral ranges.

关键词： laser ultrashort photon