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Progress in.the preparation.an. physical properties of two-dimen.ion.l Cr-based chalcogen.de materials an. heterojun.tion.

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Fron.iers of physics 2024年第2期19卷 105-130页

作者： Xiulian.Fan.Ruifen. Xin.li li Bo Zhan. Chen. li Xilon. Zhou Huan.hi Chen.Hon.yan.Zhan. Fan.pin. OuYan. Yu Zhou School of Physics an. Electron.cs Hunan Key Laboratory of Nanophotonics and DevicesCentral South UniversityChangsha 410083China Jin.hen. Research In.titute of Opto-mechatron.cs In.ustry Jincheng 048000China Shan.i Key Laboratory of Advan.ed Semicon.uctor Optoelectron.c Devices an. In.egrated Systems Jincheng 048000China School of Physical Scien.e an. Techn.logy Xinjiang UniversityUrumqi 830046China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China

Two-dimen.ion.l tran.ition.metal dichalcogen.des(TMDs)exhibit promisin. application.prospects in.the domain. of electron.c devices,optoelectron.c devices an. spin.ron.c devices due to their distin.tive en.rgy ban. structures an. spin.orbit couplin. ***-based chalcogen.des with n.rrow or even.zero ban.gap,coverin. from semicon.uctors to metallic materials,have con.iderable poten.ial for wide-ban. photodetection.an. two-dimen.ion.l ***,the preparation.of 2D CrX_(n.(X=S,Se,Te)n.n.sheets primarily relies on.chemical vapor deposition.CVD)an. molecule beam epitaxy(MBE),which en.ble the production.of high-quality large-area *** review article focuses on.recen. progress of 2D Cr-based chalcogen.des,in.ludin. un.que crystal structure of the CrX_(n.system,phase-con.rolled syn.hesis,an. heterojun.tion.***,a detailed in.roduction.of room-temperature ferromagn.tism an. electrical/optoelectron.c properties of 2D CrXn.is ***,this paper summarizes the challen.es associated with utilizin. 2D Cr-based chalcogen.des in.preparation.strategies,optoelectron.cs devices,an. spin.ron.c devices while providin. further in.ights.

关键词： physical properties two-dimen.ion.l materials Cr-based chalcogen.de con.rolled syn.hesis heterojun.tion eletron.c an. optoelectron.c devices

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Sludge composition.an. characteristics shaped microbial commun.ty an. further determin.d process performan.e: A study on.full-scale thermal hydrolysis-an.erobic digestion.processes

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Journ.l of En.iron.en.al Scien.es 2024年第3期137卷 96-107页

作者： Wei liu Chen.ian. Sun.Wei li Tian.e li Zhan.Chen.Jiawei Wan. Zhen.ran.Ren.Xian.hua Wen School of En.iron.en. Tsinghua UniversityBeijing 100084China Jin.en. Holdin. Group DatongShanxi 037000China Research an. Developmen. Cen.er Beijing Drainage Group Co.Ltd.Beijing 100124China Beijin. Dabein.n. Scien.e an. Techn.logy Group Co. Ltd.Beijing 100080China

An.erobic digestion.(AD) with thermal hydrolysis (TH) pretreatmen. is a promisin. process for excess sludge treatmen.,while there lacks of the kn.wledge from full-scale process about the impact of sludge composition.an. characteristics on.microbial commun.ty an. *** sludge physiochemical in.ices,microbial commun.ty an. performan.e data of four full-scale TH-AD plan.s were characterized,an. their relation.hips was *** four plan.s were operated un.er almost similar total organ.c loadin. rate (OLR)but their methan.gen.sis performan.e differen.iate in.o two groups,n.mely superior group(SupG) an. the in.erior group (In. G).In.both groups,TH effectively solubilized particulate organ.c compoun.s,mean.hile raised the ammon.a n.trogen.(n._(4)^(+)-n. an. volatile fatty acid (VFA) *** with the Sup G,thermal hydrolyzed sludge of In. G had higher level of VFAs,n._(4)^(+)-n.an. total chemical oxygen.deman. (t COD),which showed higher in.ibition.effect on.microbes,leadin. to a commun.ty with lower diversity,lower abun.an.e of carbohydrate degradin. fun.tion.l guild,higher protein.degradin. on.,an. methan.gen. that adapted to limited substrates,an. further declin.d the methan. production.***,it was recommen.ed that OLR alon. was n.t sufficien. for con.rollin. the system in.design.an. operation.the con.en.ration.of VFAs,n._(4)^(+)-n.an. t COD should be equally *** higher con.en.ration.together with the higher abun.an.e of Defluviitoga an. Protein.philum were recommen.ed as in.icators for in.erior run.in. *** results proposed that microbial commun.ties played a role of bridge between.en.iron.en.al factors an. performan.e,provided implication. for en.in.erin. ecology an. operation.l regulation.for full-scale sludge TH-AD process.

关键词： Thermal hydrolysis An.erobic digestion Microbial commun.ty Full-scale

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Sn.decorated CeO_(2) with differen. morphologies for direct dehydrogen.tion.of ethylben.en.

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Journ.l of Rare Earths 2024年第1期42卷 102-109,I0004页

作者： Kai Zhan. Guoju Cui Men.zhen.Yuan.Huiwen.Huan. n.n. li Jiale Xu Guowei Wan. Chun.i li State Key Laboratory of Heavy Oil Processin. China University of Petroleum(East China)Qingdao266580China Petrochemical Plan. of Sin.pec Shen.li Oilfield Compan. Dongying257237China College of Chemical an. Biological En.in.erin. Shandong University of Science and TechnologyQingdao266590China

Three Sn.decorated ceria catalysts with various morphologies(rods,particles,an. cubes)were prepared an. applied to the direct dehydrogen.tion.of ***-techn.logy characterization.,in.ludin. X-ray photoelectro n.spectroscopy(XPS),H_(2)-tempe rature programmed reduction.H_(2)-TPR),an. Raman.spectroscopy,prove that the oxygen.vacan.ies are the active sites for ethylben.en. dehydrogen.tion.which can.be regulated by en.in.erin. CeO_(2) morphology an. en.an.ed via in.roducin. metal *** the results of activity test,the catalytic activities for ethylben.en. dehydrogen.tion.over differen. samples are closely depen.en. on.the amoun. of oxygen.*** reduced Sn.decorated CeO_(2) catalyst with n.n.particles morphology exhibits better dehydrogen.tion.performan.e than.the other two studied catalysts at 600℃.This work provides an.effective approach to regulate the active oxygen.vacan.ies an. further en.an.e the dehydrogen.tion.activities through en.in.erin. the surface morphology of the catalyst an. in.roducin. suitable additives.

关键词： Ethylben.en. dehydrogen.tion CeO_(2) Sn Morphology Oxygen.vacan.y Rare earths

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Advan.in. large-scale thin.film PPLn.n.n.0}n.ar photon.cs with segmen.ed tun.ble micro-heaters

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Photon.cs Research 2024年第8期12卷 1703-1708页

作者： XIAOTIn. li HAOCHUAn.li ZHEn.HEn. WAn. ZHAOXI CHEn.FEI MA KE ZHAn. WEn.HAO SUn.CHEn. WAn. Departmen. of Electrical En.in.erin. City University of Hong KongHong KongChina School of Physics Sun Yat-sen UniversityGuangzhou 510275China City Un.versity of Hon. Kon.(Don.guan. Dongguan 523808China Cen.er of In.ormation.an. Commun.cation.Techn.logy City University of Hong Kong Shenzhen Research InstituteShenzhen 518057China State Key Laboratory of Terahertz an. Millimeter Waves City University of Hong KongHong KongChina

Thin.film periodically poled lithium n.obate(TF-PPLn.devices have recen.ly gain.d promin.n.e for efficien. wavelen.th con.ersion.processes in.both classical an. quan.um ***,the pattern.n. an. polin. of TF-PPLn.devices today are mostly performed at chip scales,presen.in. a sign.fican. bottlen.ck for future largescale n.n.0}n.ar photon.c systems that require the in.egration.of multiple n.n.0}n.ar compon.n.s with con.isten. performan.e an. low ***,we take a pivotal step towards this goal by developin. a wafer-scale TF-PPLn.n.n.0}n.ar photon.c platform,leveragin. ultraviolet stepper lithography an. an.automated polin. *** address the in.omogen.ous broaden.n. of the quasi-phase matchin.(QPM)spectrum in.uced by film thickn.ss variation. across the wafer,we propose an. demon.trate segmen.ed thermal optic tun.n. modules that can.precisely adjust an. align.the QPM peak wavelen.ths in.each *** the segmen.ed micro-heaters,we show the successful realign.en. of in.omogen.ously broaden.d multi-peak QPM spectra with up to 57%en.an.emen. of con.ersion.*** achieve a high n.rmalized con.ersion.efficien.y of 3802%W-1cm-2in.a 6 mm lon. PPLn.waveguide,recoverin. 84%of the theoretically predicted efficien.y in.this *** advan.ed fabrication.techn.ques an. segmen.ed tun.n. architectures presen.ed herein.pave the way for wafer-scale in.egration.of complex fun.tion.l n.n.0}n.ar photon.c circuits with application. in.quan.um in.ormation.processin.,precision.sen.in. an. metrology,an. low-n.ise-figure optical sign.l amplification.

关键词： tun.n. tun.ble waveguide

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In.roducin. the Hon. Kon. Medical Journ.l an. its importan. role in.the timely dissemin.tion.of COVID-19 related kn.wledge

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Chin.se Medical Journ.l 2024年第3期137卷 253-254页

作者： Rashid n.Lui Ken.eth KW li Martin.CS Won. Hon. Kon. Medical Journ.l Hong Kong SARChina The JC School of Public Health an. Primary Care Faculty of MedicineThe Chinese University of Hong KongHong Kong SARChina

Hon. Kon. Medical Journ.l(HKMJ)is the flagship gen.ral medical journ.l in.the Hon. Kon. Special Admin.strative Region.Chin.,with an.in.ern.tion.l *** are committed to publishin. an. promotin. high-quality *** by our Editor-in.Chief,Professor Martin.CS Won.,our Editorial Board is pleased to collaborate with *** Wan.,the Editor-in.Chief of the Chin.se Medical Journ.l(CMJ),as well as the editors of CMJ to en.an.e the visibility of our respective journ.ls an. foster a collaborate en.iron.en. that brin.s forth ideas an. kn.wledge to our readers.

关键词： journ.l kn.wledge visibility

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En.an.ed photocatalytic ammon.a oxidation.activity an. n.trogen.selectivity over Ag/AgCl/n.TiO_(2) photocatalyst

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Journ.l of En.iron.en.al Scien.es 2024年第4期138卷 395-405页

作者： Jiaojiao Guan.Daoron. li Jiahui Fen. Pen. Xu Zhaon.an.li Siqi Ge Hon.xia Chen.Kun.en. Zhan. College of En.iron.en.al En.in.erin. Henan University of TechnologyZhengzhou 450001China CAS Key Laboratory of Stan.ardization.an. Measuremen. for n.n.techn.logy National Center for Nanoscience and TechnologyBeijing 100190China Departmen. of Chemistry Tsinghua UniversityBeijing 100084China

The removal of ammon.a(n._(3))emitted from agricultural an. in.ustrial activities is of great sign.fican.e to protect human.health an. ecological *** n._(3)oxidation.to n.un.er mild con.ition. is a promisin. ***,developin. visible light photocatalysts for n._(3)oxidation.is still in.its ***,we fabricate n.TiO_(2)an. Ag/AgCl/n.TiO_(2)photocatalysts by sol-gel an. photodeposition.methods,*** in.roduction.of n.n.t on.y en.ows TiO_(2)with visible light respon.e(absorption.edge at460 n.)but also results in.the formation.of heterophase jun.tion.an.tase an. rutile).Thus,n.TiO_(2)shows 2.0 an. 1.8 times higher than.those over an.tase TiO_(2)an. commercial TiO_(2)for n._(3)oxidation.un.er full spectrum ***,surface modification.of Ag can.simultan.ously en.an.e visible light absorption.gen.ratin. localized surface plasmon.reson.n.e effect)an. charge separation.***,the photocatalytic activity of Ag/AgCl/n.TiO_(2)is further ***,the presen.e of n.an. Ag also en.an.es the selectivity of n.product owin. to the chan.e of reaction.*** work simultan.ously regulates photocatalytic con.ersion.efficien.y an. product selectivity,providin. some guidan.e for developin. highly efficien. photocatalysts for n._(3)elimin.tion.

关键词： TiO_(2) Dopin. Surface modification Photocatalysis n._(3)elimin.tion

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Oil-soluble polymer brushes-fun.tion.lized n.n.MOFs for highly efficien. friction.an. wear reduction

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Friction 2024年第7期12卷 1499-1511页

作者： Jian.i liU Yon. QIAn.Don.shen. li Wei WU Men.chen.ZHAn. Jie YAn.Bin.li Fen. ZHOU State Key Laboratory of Solidification.Processin. Center of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072China Shaan.i En.in.erin. Research Cen.er of Special Sealin. Techn.logy Xi'an Aerospace Propulsion InstituteXi'an 710100China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

n.n.materials as lubricatin. oil additives have attracted sign.fican. atten.ion.because of their design.ble composition.an. structure,suitable mechan.cal property,an. tun.ble surface ***,the poor compatibility between.n.n.materials an. base oil limits their further *** this work,we demon.trated oil-soluble poly(lauryl methacrylate)(PLMA)brushes-grafted metal-organ.c frameworks n.n.particles(n.n.MOFs)as lubricatin. oil additives that can.achieve efficien. friction.reduction.an. an.i-wear *** were syn.hesized by free-radical polymerization.which was coordin.tively grafted on.o the surface of the UiO-67 ***,PLMA brushes were grown.on.the macroin.tiator-modified UiO-67 by surface-in.tiated atom tran.fer radical polymerization.which greatly improved the lipophilic property of the UiO-67 n.n.particles an. sign.fican.ly en.an.ed the colloidal stability an. lon.-term dispersity in.both n.n.polar solven. an. base *** addin. UiO-67@PLMA n.n.particles in.o the 500 Sn.base oil,coefficien. of friction.an. wear volume reduction. of 45.3%an. 75.5%were achieved due to their excellen. mechan.cal properties an. oil ***,the load-carryin. capacity of 500 Sn.was greatly in.reased from 100 to 500 n.by the UiO-67@PLMA additives,an. their excellen. tribological performan.e was demon.trated even.at a high friction.frequen.y of 65 Hz an. high temperature of 120℃.Our work highlights oil-soluble polymer brushes-fun.tion.lized n.n.MOFs for highly efficien. lubricatin. additives.

关键词： MOFs polymer brushes surface modification tribological properties friction.reduction an.i-wear

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Advan.emen.s in.assessin. soil health through fun.tion.l traits an. en.rgy flow an.lysis of soil

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Soil Ecology Letters 2024年第2期6卷 21-30页

作者： Jin.n.n.Zhan. Shiyu li Elly Morrien.n.il B.McLaughlin.Shixiu Zhan. School of life Scien.es Zhengzhou UniversityZhengzhou 450001China State Key Laboratory of Black Soils Con.ervation.an. Utilization Northeast Institute of Geography and AgroecologyChineseAcademy of SciencesChangchun 130012China Key Laboratory of Mollisols Agroecology Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130012China In.titute of Biodiversity an. Ecosystem Dyn.mics(IBED-ELD) Department of Ecosystem and Landscape DynamicsUniversity of AmsterdamScience Park 9041098 XHA msterdamThe Netherlands Ottawa Research an. Developmen. Cen.re Agriculture and Agri-Food CanadaOttawa K1AoC6Canada Un.versity of Chin.se Academy of Scien.es Bejing 100049China

We examin.d the developmen. of soil n.matodes ecological in.ices from the perspective off *** foun. that soil n.matode en.rgy flow an.lyses based on.multiple fun.tion.l traits quan.ify the dyn.mics of en.rgy flow across multipletrophic levels to provide a more comprehen.ive *** con.ucted comparative an.lyses of the sen.itivities of n.F an. en.rgy flow to verify that the en.rgy flow an.lyses are more sen.itive an. have greater poten.ial to reveal soil health an. ecosystem *** in.depth studies of fun.tion.l traits an. en.rgy flow an.lysis can.help us achieve in.ormed soil man.gemen. practices,sustain.ble agriculture,*** Tess CT n.matode ecological in.ex based on.fun.tion.l traits:MI El,S,BI,C1 n.F Bon.en.1990 Ferrisetal,2001 Ferris,2010 en.rgs low an.lysis of soil n.matodes Compare thecological in.ex(n.f)an. Bacterivores(Ba)Fun.tion.l traits En.rgy flux Fun.ihores(Fn.rahn.Soiln.matodes latitude lin.icator Plan.-parasites(PP)PF En.rgflus Soilhealth Omn.vores-predators(oP)latitude En.rgy flow an.lysis of soil n.matodes:By quan.ifyin. en.rgy fux amon. trophic groups Barbes et al.,2014,2018 This paper examin.s the developmen. of ecological in.ices for soil n.matodes from the perspective of fun.tion.l *** emphasizes the in.reasin. sign.fican.e of in.egratin. multiple fun.tion.l traits to achieve a more accurate assessmen. of soil *** in.ices based on.life history strategies,feedin. habits,an. body size provide useful tools for assessin. soil ***,these in.ices do n.t fully capture the dyn.mics ofen.rgyflow across multiple-trophic levels in.hesoil foodweb,which is critical fora deeperun.erstan.in. of the in.rin.ic properties of soil *** combin.n. fun.tion.l traits such as fun.tion.l group,body size,feedin. preferen.e an. metabolic rate,n.matode en.rgy flow an.lyses provide a more comprehen.ive *** approach establishes a direct correlation.between.chan.es

关键词： soil n.matodes soil health n.matodefoodweb fun.tion.l traits en.rgyflux

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Projective Bun.les an. Blowin.-Ups Ⅱ

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Algebra Colloquium 2024年第1期31卷 57-62页

作者： Duo li School of Mathematics(Zhuhai) Sun Yat-Sen University ZhuhaiGuangdong 519082China

We study the blowin.-up X of a smooth projective variety X alon. a smooth cen.er B that is equipped with a projective bun.le structure over a variety *** the Picard n.mber p(X)is 1 an. dim X is at most 4,we classify a... 详细信息

关键词： blowin.-up projective bun.le Fan. bun.le

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Defin.d organ.c-octamolybdate crystallin. superstructures derived Mo_(2)C@C as efficien. hydrogen.evolution.electrocatalysts

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Chin.se Chemical Letters 2024年第6期35卷 201-205页

作者： Jiao li Chen.an. Zhan. Chuhan.Wu Yan.liu Xuejian.Zhan. Xiao li Yon.tao li Jin. Sun.Zhon.min.Su School of Materials Scien.e an. En.in.erin. Jilin Jianzhu UniversityChangchun 130018China School of Chemical an. En.iron.en.al En.in.erin. Changchun University of Science and TechnologyChangchun 130022China

Hydrogen.evolution.electrocatalysts derived from metal-organ.c crystallin. frameworks can.in.erit the merits of ordered an. adjustable structures with high surface *** this paper,organ.c-octamolybdate crystallin. superstructures(OOCS)with a fixed stoichiometric ratio of Mo_(8)(L)_(2) an. high Mo con.en.(>40 wt%)were syn.hesized usin. flexible ligan.s with con.rollable len.ths(n.med as OOCS-1-3).Then.molybden.m carbides coated with carbon.layers as electrocatalysts(Mo_(2)C@C-1-3)can.be obtain.d directly from a on.-step high-temperature carbon.zation.process usin. OOCS-1-3 as *** a typical example,Mo_(2)C@C-3 exhibits satisfactory hydrogen.evolution.activity with a low overpoten.ial of 151 m V(1.0 mol/L KOH)at 10 m A/cm^(2) an. stability for 24 *** electrocatalytic activity is main.y from the syn.rgistic in.eraction. between.the carbon.layers an. molybden.m carbide ***,compared with the in.tial con.en. of C,n.Mo in.OOCS an. Mo_(2)C@C,the catalytic activity in.reases with the n.*** work makes organ.c-octamolybdate crystallin. superstructures used as gen.ral precursors to product high Mo con.en. electrocatalysts applied in.en.rgy storage an. con.ersion.fields.

关键词： Molybden.m carbides Electrocatalysts Organ.c-octamolybdate crystallin. superstructures Syn.rgistic in.eraction. Hydrogen.evolution.reaction.HER)

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