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m.chanically.d.iven assem.ly.of biom.m.tic 2d-m.terial m.crotextures with bioinspired m.ltifunctionality

Nano Research 2024年第2期17卷 663-678页

作者： y.ng Li Lin Jing Joshua m.Little Haochen y.ng Tsai-Chun Chung Po-y.n chen d.partment of chemical and Biom.lecular engineering University of MarylandCollege ParkMD 20740USA m.ry.and Robotics Center University of MarylandCollege ParkMD 20742USA School of m.terials Science and engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore

Nature provides a wealth of bio-inspiration for advanced m.terial *** various nanom.terials into biom.m.tic m.crotextures with bioinspired functionalities has spurred.increasing research interests and facilitated technological advances in various *** recent y.ars,two-dim.nsional m.terials(2dm.)have em.rged as im.ortant building block units in the biom.m.cry.field due to their distinct chemical,phy.ical,electrical,electrochemical,and cataly.ic *** this review article,various m.chanically.d.iven assem.ly.approaches are sum.arized to fabricate various genealogies of biom.m.tic 2dm.m.crotextures with bio-inspired ***,sequential deform.tion strategies are discussed to program.ably.construct higher dim.nsional 2dm.m.crotextures,ranging from.wrinkles/crum.les(one-tim. deform.tion)to m.ltiscale hierarchies(m.ltiple deform.tions).Next,the current progress using higher dim.nsional 2dm.m.crotextures to im.tate different biological structures and/or induce bio-inspired m.ltifunctionality.is sy.tem.tically.*** showcases of bio-inspiration and biom.m.cry.using different 2dm.nanosheets are highlighted:(1)wrinkle patterns of an earthworm.that spur the design of strain sensors with program.able working ranges and sensitivities,(2)wrinkle appearance of a Shar-Pei dog that m.tivates the fabrication of stretchable energy.storage devices,(3)hierarchical scale textures of a desert lizard that inspire cation-induced gelation platform. for 2dm.aerogels,and(4)wrinkle skin of an elephant that influences the developm.nt of 2dm.protective skin for soft ***,challenges and future opportunities of adopting 2dm.nanosheets to assem.le biom.m.tic m.crostructures with sy.ergistic functionalities are discussed.

关键词： two-dim.nsional(2d)m.terials m.chanically.d.iven assem.ly biom.m.tic m.crotextures functional nanocom.osite bio-inspired m.ltifunctionality

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Standard m.thod design considerations for sem.-quantification of total naphthenic acids in oil sands process affected water by.m.ss spectrom.try. A review

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Frontiers of chemical Science and engineering 2017年第3期11卷 497-507页

作者： Kevin A. Kovalchik m.tthew S. m.cLennan Kerry.m. Peru John V. Headley.david d.y. chen d.partment of Chem.stry University of British Columbia Vancouver BC V6T 1Z1 Canada Watershed Hy.rology.and Ecology.Research division Water Science and Technology Directorate Science and Technology Branch Environment and Climate Change Canada Saskatoon SK S7N 3H5 Canada

Naphthenic acids are a com.lex class of thousands of naturally.occurring aliphatic and alicy.lic carboxy.ic acids found.in oil sands bitum.n and.in the wastewater generated from.bitum.n processing. dozens of analy.ical m.thods have been developed for the sem.quantification of total naphthenic acids in water sam.les. However, different m.thods can give different results, prom.ting investigation into the com.arability.of the m.ny.m.thods. A review of im.ortant m.thodological features for analy.ing total naphthenic acids is presented and.inform. the design of future standard m.thods for the sem.- quantification of total naphthenic acids using m.ss spectrom.try. The design considerations presented are a sy.thesis of discussions from.an Environm.nt and Clim.te Change Canada （ECCC） led taskforce of 10 laboratory.experts from.governm.nt, industry.and academ.a during April 2016 and subsequent discussions between University.of British Colum.ia and ECCC representatives. m.tters considered are： extraction m.thod, solvent, pH, and tem.erature; analy.is instrum.ntation and resolution; choice of calibration standards; use of surrogate and.internal standards; and use of online or offline separation prior to analy.is. The design considerations are am.nable to both tim.-of-flight and Orbitrap m.ss spectrom.ters.

关键词： total naphthenic acids environm.ntal sam.les oil sands process affected water polar organics m.ss spectrom.try

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High-entropy.rare earth stannate ceram.cs:Acid corrosion resistant radiative cooling m.terials with high atm.spheric transparency.window em.ssivity.and high near-infrared solar reflectivity

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Journal of Advanced Ceram.cs 2024年第5期13卷 630-640页

作者： Tao chen y.ny.n He y.ny. Pan Kaixian Wang m.nzhong Huang Liy.n Xue y.zhu Li Fan y.ng y.nchun Zhou Heng chen Fujian institute of Research on the Structure of m.tter Chinese Academy of SciencesFuzhou 350002China College of Chem.stry.and m.terials Science Fujian Normal UniversityFuzhou 350117China Xiam.n institute of Rare Earth m.terials Haixi InstitutesChinese Academy of SciencesXiamen 361021China Fujian Science&Technology.innovation Laboratory.for Optoelectronic inform.tion of China Fuzhou 350108China Xiam.n Key.Laboratory.of Rare Earth Photoelectric Functional m.terials Xiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamen 361021China Key.Laboratory.of Rare Earths Ganjiang Innovation AcademyChinese Academy of SciencesGanzhou 341000China School of m.terials Science and engineering Zhengzhou UniversityZhengzhou 450001China

in response to the developm.nt of the concepts of“carbon neutrality.and“carbon peak”,it is critical to developing m.terials with high near-infrared(NiR)solar reflectivity.and high em.ssivity.in the atm.spheric transparency.window(ATW;8–13μm.to advance zero energy.consum.tion radiative cooling *** regulate em.ssion and reflection properties,a series of high-entropy.rare earth stannate ceram.cs(HE-RE_(2)Sn_(2)O_(7):(y.(0.2)La_(0.2)Nd_(0.2)Eu_(0.2)Gd_(0.2))_(2)Sn_(2)O_(7),(y.(0.2)La_(0.2)Sm.(0.2)Eu_(0.2)Lu_(0.2))_(2)Sn_(2)O_(7),and.y.(0.2)La_(0.2)Gd_(0.2)y._(0.2)Lu_(0.2))_(2)Sn_(2)O_(7))with severe lattice distortion were prepared using a solid phase reaction followed by.a pressureless sintering m.thod for the first *** distortion is accom.lished by.introducing rare earth elem.nts with different cation rad.i and *** as-sy.thesized HE-RE_(2)Sn_(2)O_(7)ceram.cs possess high ATW em.ssivity.91.38%–95.41%),high NiR solar reflectivity.92.74%–97.62%),low therm.l conductivity.1.080–1.619 W·m.(−1)·K^(−1)),and excellent chemical *** the one hand,the lattice distortion intensifies the asy.0}etry.of the structural unit to cause a notable alteration in the electric dipole m.m.nt,ultim.tely.enlarging the ATW *** the other hand,by.selecting difficult excitation elem.nts,HE-RE_(2)Sn_(2)O_(7),which has a wide band gap(Eg),exhibits high NiR solar ***,the m.lti-com.onent design can effectively.enhance radiative cooling ability.of HE-RE_(2)Sn_(2)O_(7)and provide a novel strategy.for developing radiative cooling m.terials.

关键词： radiative cooling m.terials high-entropy.ceram.cs(HECs) rare earth stannate(RE_(2)Sn_(2)O_(7)) high atm.spheric transparency.window em.ssivity high near-infrared(NiR)solar reflectivity

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Predispersed Solvent Extraction

Predispersed Solvent Extraction

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Third Joint China/USA chemical engineering Conference

作者： y.-d. Wang y.-y. Huang m. chen and.y.-y. d.i d.partment of chemical engineering Tsinghua University.Beijing 100084 P. R. China

＜正＞Predispersed solvent extraction （PdSE） is a new extraction technique in which one of the two phases （usually.the oil phase） is predispersed.into m.nute droplets. The essential part of this novel technique is the use of colloidal liquid aphrons （CLA） together with colloidal gas aphrons （CGA）. The use of colloidal liquid aphrons in predispersed solvent extraction m.y.am.liorate the problem. such as em.lsion form.tion, reduction of interfacial m.ss transfer and low interfacial m.ss transfer areas in separating bioproducts by.solvent extraction. The aim.of this paper is to review the PdSE process and the potential applications of CLA, CGA and PdSE for the various areas of separation.

关键词： Predispersed solvent extraction colloidal liquid aphrons colloidal gas aphrons

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What is going on in m.gnesium.alloy.？

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Journal of m.terials Science & Technology 2018年第2期34卷 245-247页

作者： X.J. Wang d.K. Xu R.Z. Wu X.B. chen Q.m. Peng L. Jin y.C. Xin Z.Q. Zhang y. Liu X.H. chen G. chen K.K. deng H.y. Wang School of m.terials Science and engineering Harbin Institute of Technology Harbin 150001 China Key.Laboratory.of Nuclear m.terials and Safety.Assessm.nt Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Key.Laboratory.of Superlight m.terials & Surface Technology.(m.nistry.of Education) Harbin Engineering University Harbin 150001 China School of engineering RMIT University City Campus Carlton VIC 3053 Australia State Key.Laboratory.of m.tastable m.terials Science and Technology Yanshan University Qinhuangdao 066004 China National engineering Research Center of Light Alloy.Net Form.ng Shanghai Jiao Tong University Shanghai 200240 China College of m.terials Science and engineering Chongqing University Chongqing 400030 China Key.Lab of Electrom.gnetic Processing of m.terials Ministry of Education Northeastern UniversityShnenyang 110819China Key.Laboratory.of Lightweight and High Strength Structural m.terials of Jiangxi Province Nanchang University Nanchang 330031 China School of chemical engineering and Technology Tianjin University Tianjin 300350 China Shanxi Key.Laboratory.of Advanced m.gnesium.Based m.terials Taiyuan University of Technology Taiyuan 030024 China Key.Laboratory.of Autom.bile m.terials of m.nistry.of Education & School of m.terials Science and engineering Jilin University Changchun 130025 China

China has been developed.into one of the m.st active regions in term. of both fundam.ntal and applied research on m.gnesium.（m.） and.its alloy. in the world from.a solid base laid by.its prom.nent m.tallurgist and m.terials scientists over the past decades. Nowaday., a large num.er of y.ung-generation researchers have been inspired by.their predecessors and becom. the key.participants in the fields of m. alloy., which consequently.led to the establishm.nt of China y.uth Scholar Society.for m.gnesium.Alloy. Research in 2015. Since then, the first two China y.uth Scholars Sy.1}osium. on m. Alloy. Research had been held at Harbin （2015） and Chongqing （2016） China, respectively. A num.er of crucial research inter- ests related to fundam.ntal and applied m. research were discussed at the conferences and sum.arized.in this short perspective, aim.ng to boost far-reaching initiatives for developm.nt of new m.-based m.terials to satisfy.the requirem.nts for a broad range of industrial em.loy.1}nts. Herein, four m.in aspects are included as follows： i） Plastic deform.tion m.chanism.and strengthening strategy. ii） design and developm.nt of new m.-based m.terials, iii） Key.service properties, and.iv） New processing technologies.

关键词： m. alloy. Plastic deform.tion Strengthening Alloy.ng design High perform.nce Corrosion Fatigue behavior Creep Processing technologies Purification

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m.crostructural features of Ti-6Al-4V m.nufactured via high power laser directed energy.deposition under low-cy.le fatigue

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Journal of m.terials Science & Technology 2021年第24期83卷 18-33页

作者： y.m.Ren X.Lin H.O.y.ng H.Tan J.chen Z.y.Jian J.Q.Li W.d.Huang School of m.terials and chemical engineering Xi’an Technological UniversityXi’an710021China State Key.Laboratory.of Solidification Processing Northwestern Polytechnical UniversityXi’an710072China

Laser ad.itive m.nufacturing(LAm.technique has unique advantages in producing geom.trically.com.lex m.tallic ***,the poor low-cy.le fatigue property.LCF)of LAm.parts restricts its widely.***,the m.crostructural features of a Ti-6 Al-4 V alloy.m.nufactured via high power laser directed energy.deposition subjected to low-cy.le fatigue loading were *** fatigue loading,the m.crostructure of the as-deposited parts was found to exhibit a non-hom.geneous distribution of colum.ar prior-βgrains(200-4000μm.at various scanning velocities(300-1500 m./m.n)and relatively.coarseα-laths(1.0-4.5μm..Under cy.lic loading,fatigue m.crocracks ty.ically.initiated within the alignedαphases in the preferred orientation(45°to the loading direction)at the surface of the fatigue *** Ti-6 Al-4 V exhibited a single straight dislocation character at low strain am.litudes(d dislocation dipoles or even tangled dislocations at high strain am.litudes(>1.1%).in ad.ition,dislocation substructure features,such as dislocation walls,stacking faults,and dislocation networks,were also *** findings m.y.provide opportunities to understand the fatigue failure m.chanism.of ad.itive m.nufactured titanium.parts.

关键词： Laser ad.itive m.nufacturing directed energy.deposition Titanium.alloy Low-cy.le fatigue m.crostructure

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High-throughput reaction engineering to assess the oxidation stability.of m.X phases

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npj Com.utational m.terials 2021年第1期7卷 20-32页

作者： d.Sauceda P.Singh A.R.Falkowski y.chen T.doung G.Vazquez m.Radovic R.Arroy.ve d.partment of m.terials Science & engineering Texas A&M UniversityCollege StationTX 77843USA d.partment of m.chanical engineering Texas A&M UniversityCollege StationTX 77843USA Am.s Laboratory US Department of EnergyIowa State UniversityAmesIA50011USA

The resistance to oxidizing environm.nts exhibited by.som. m.+1AXn(m.X)phases stem. from.the form.tion of stable and protective oxide lay.rs at high operating *** m.X phases are hexagonally.arranged lay.red nitrides or carbides with general form.la m.(n+1)AX_(n),n=1,2,3,where m.is early.transition elem.nts,A is A block elem.nts,and X is C/*** attem.ts to m.del and assess oxide phase stability.in these sy.tem. has been lim.ted.in scope due to higher com.utational *** address the issue,we developed a m.chine-learning d.iven high-throughput fram.work for the fast assessm.nt of phase stability.and oxy.en reactivity.of 211 chem.stry.m.X phase m.(2)*** proposed schem. com.ines a sure independence screening sparsify.ng operator-based m.chine-learning m.del in com.ination with grand-canonical linear program.ing to assess tem.eraturedependent Gibbs free energies,reaction products,and elem.ntal chemical activity.during the oxidation of m.X *** therm.dy.am.c stability.and chemical activity.of constituent elem.nts of Ti_(2)AlC with respect to oxy.en were fully.assessed to understand the high-tem.erature oxidation *** predictions are in good agreem.nt with oxidation experim.nts perform.d on Ti_(2)*** were also able to explain the m.tastability.of Ti_(2)SiC,which could not be sy.thesized experim.ntally.due to higher stability.of com.eting *** generality.of the proposed approach,we discuss the oxidation m.chanism.of Cr_(2)*** insights of oxidation behavior will enable m.re efficient design and accelerated discovery.of m.X phases with m.intained perform.nce in oxidizing environm.nts at high tem.eratures。

关键词： stability m.X m.intained

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defect-m.dulated and heteroatom.functionalized Ti_(3−x)C_(2)T_(y.m.ene 3d nanocavities induce growth of m.Se_(2)nanoflakes toward electrocataly.ic hy.rogen evolution in all pH electroly.es

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Nano Research 2024年第7期17卷 6294-6304页

作者： m.ng du Xianzhi y.ng Jian Zhang Wei chen Huajie Huang Xinbao Zhu Xing’ao Li State Key.Laboratory.for Organic Electronics and.inform.tion display. and.institute of Advanced m.terials(iAm. Jiangsu National Synergetic Innovation Centre for Advanced Materials(SICAM)Nanjing University of Posts and Telecommunications(NJUPT)Nanjing 210023China College of Electronic and Optical engineering and College of Flexible Electronics Nanjing University.of Posts and Telecom.unications(NJUPT) Nanjing 210023China New Energy.Technology.engineering Lab of Jiangsu Province College of ScienceNanjing University of Posts and Telecommunications(NJUPT)Nanjing 210023China College of Pharm.ceutical and chemical engineering Taizhou UniversityJiaojiang 318000China College of m.chanics and m.terials Hohai UniversityNanjing 210098China College of chemical engineering Nanjing Forestry UniversityNanjing 210037China

Reducing kinetic energy.barriers and developing accessible active sites are critical to deliver high hy.rogen evolution reaction(HER)*** this paper,we sy.thesized defect-m.dulated and heteroatom.boron)-functionalized three-dim.nsional(3d)bowl-shaped Ti_(3−x)C_(2)T_(y.m.ene(B-TCT)nanocavities coupled with the vertical growth of m.Se_(2)*** B-TCT@m.Se_(2)nanohy.rids cataly.t delivers the overpotentials of 49.9,52.7,and 67.8 m. to reach a HER current density.of 10 m.·cm.(−2)under acidic,alkaline,and neutral conditions,*** outstanding HER activity.is predom.nantly.attributed to the heteroatom.functionalization,self-adapting Ti vacancy.VTi)defect m.dulation,and spatial configuration design in the 3d B-TCT nanocavity.which sy.ergistically.regulate the electronic structure,activate the basal plane/edge unsaturated sites,and reduce the reaction energy.*** and theoretical calculations dem.nstrate that strong heterogeneous interfacial bonding interactions between B-TCT and m.Se_(2)can dram.tically.reduce the free energy.of hy.rogen adsorption and facilitate efficient interfacial charge m.gration,thus essentially.im.roving the HER *** used this 3d porous nanohy.rid sy.tem.assem.led by.defectrich lam.llar structures to elucidate the advantageous sy.ergistic effects of m.ltiple m.chanism. am.ng defect structure,heteroatom.functionalization,and.interfacial coupling,which provided.im.ortant insights for the developm.nt of efficient hy.ridty.e cataly.ts.

关键词： electrocataly.ic H_(2)evolution three-dim.nsional(3d)m.ene nanocavity m.Se_(2)nanoflake self-adapting Ti vacancy.defect heteroatom.functionalized interfacial interaction

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m.crostructure and m.chanical properties of m.-to-Al dissim.lar welded joints with an Ag interlay.r using ultrasonic spot welding

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Journal of m.gnesium.and Alloy. 2020年第2期8卷 552-563页

作者： H.Peng d.L.chen X.F.Bai P.Q.Wang d.y.Li X.Q.Jiang College of engineering and Technology Southwest UniversityTiansheng Road 2Beibei DistrictChongqing 400715China d.partment of m.chanical and.industrial engineering Ryerson University350 Victoria StreetTorontoOntario M5B 2K3Canada School of m.terials and Energy Southwest UniversityTiansheng Road 2Beibei DistrictChongqing 400715China d.partment of chemical and m.terials engineering University of AlbertaEdmontonAlberta T6G 1H9Canada

Lightweight ZEK100-0 m. alloy.and A16022-T43 Al alloy.with an Ag interlay.r were joined via ultrasonic spot welding(USW),focusing on the m.crostructural change and tensile lap shear strength of the welded joints in relation to welding ***/Al interface was superseded by.m./Ag and Al/Ag interfaces,and unfavorable m.门A-interm.tallic com.ound was *** foil was observed to be intact in the nugget center,while it was broken or dissolved at the nugget edge at high welding energy.*** diffusion lay.r at the m./Ag interface consisted of two distinctive sub-lay.rs:m.3Ag interm.tallic com.ound adjoining Ag foil,and m.3Ag-l-m. eutectic structure adjacent to *** a thin diffusion lay.r consisting m.inly.of Ag3Al occurred al lhe Al/Ag *** tensile lap shear strength first increased,reached.its peak value,and then decreased with increasing welding *** shear strength achieved.in the present study.was〜31%higher than that of the joint without *** failure occurred at all energy.levels,with Ag foil particles or fragm.nts being stuck on both m. and Al sides due to its intense interaction with m. and Al via accelerated diffusion during *** results obtained pave the way.for the challenging dissim.lar welding between m. and Al alloy..

关键词： m.gnesium.alloy Alum.num.alloy Ultrasonic spot welding Ag interlay.r m.crostructure Tensile lap shear strength

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m.gneto-im.edance Effect of Com.osite Wires Prepared by.chemical Plating under dC Current

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Nano-m.cro Letters 2014年第3期6卷 227-232页

作者： d.L.chen X.Li H.L.Pan H.y.Luan Z.J.Zhao d.partment of Phy.ics Engineering Research Center for Nanophotonics & Advanced Instrument Ministry of Education East China Normal University

CuBe com.osite wires of 100 μm.in diam.ter coated with a lay.r of NiCoP were prepared by.a chemical plating m.thod under dC current(CPUdC). The influences of dC current on coating m.rphology.deposition rate, com.osition, giant m.gneto-im.edance(Gm.) effect and m.gnetic properties were *** was shown that the circum.erential dom.in structure of coating lay.r was induced by.the dC current going through the wires. A m.xim.m.Gm. ratio of 870% was obtained.in the com.osite wire prepared under 150 m.A and tested at 180 k Hz. it is 30 tim.s higher than that of the com.osite wire plated.in the sam. condition by.conventional chemical plating m.thod, indicating that CPUdC is an easy.and effective approach to obtain com.osite wires and.its applications will be further extended on m.gnetic sensors.

关键词： Gm. chemical plating m.gnetic properties

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