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Fischer-Tropsch synthesis by reduced gra.hene oxide na.osheets supported coba.t ca.a.ysts: role of support a.d meta. na.opa.ticle size on ca.a.yst a.tivity a.d products selectivity

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Frontiers of Chemica. Science a.d Engineering 2021年第2期15卷 299-309页

作者： Ha.a. Olia.i Torshizi a.i Na.ha.i pour a.i Moha.ma.i Ya.ya.Za.a.i Seyed Mehdi Ka.a.i Sha.ri Depa.tment of Chemistry Faculty of ScienceFerdowsi University of MashhadMashhad ***Iran Ga. Resea.ch division Research Institute of Petroleum IndustryTehran ***Iran Depa.tment of Chemica. Engineering Pennsylvania State UniversityState CollegePA 16801USA

In this pa.er,a.series of coba.t ca.a.ysts supported on reduced gra.hene oxide(rGO)na.osheets with the loa.ing of 5,15 a.d 30 wt-%were provided by the impregna.ion *** a.tivity of the prepa.ed ca.a.ysts is eva.ua.ed in the Fischer-Tropsch synthesis(FTS).The prepa.ed ca.a.ysts were ca.efully cha.a.terized by nitrogen a.sorption-desorption,hydrogen chemisorption,X-ra. diffra.tion,Fourier tra.sform infra.ed spectroscopy,Ra.a. spectroscopy,tempera.ure progra.med reduction,tra.smission electron microscopy,a.d field emission sca.ning electron microscopy techniques to confirm tha. coba.t pa.ticles were grea.ly dispersed on the rGO *** results showed tha. with increa.ing the coba.t loa.ing on the rGO support,the ca.bon defects a.e increa.ed a.d a. a.consequence,the reduction of coba.t is *** FTS a.tivity results showed tha. the coba.t-time yield a.d turnover frequency pa.sed from a.ma.imum for ca.a.yst with the Co0 a.era.e pa.ticle size of 15 nm due to the synergetic effect of coba.t reducibility a.d pa.ticle *** products selectivity results indica.ed tha. the metha.e selectivity decrea.es,wherea. the C5+selectivity ra.ses with the increa.ing of the coba.t pa.ticle size,which ca. be expla.ned by cha.n propa.a.ion in the prima.y cha.n growth rea.tions.

关键词： coba.t ca.a.yst coba.t pa.ticle size Fischer-Tropsch synthesis reduced gra.hene oxide supported ca.a.yst

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Deposition of na.oporous BiVO;thin-film photoca.a.yst by rea.tive ma.netron sputtering: Effect of tota. pressure a.d substra.e

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Tra.sa.tions of Nonferrous Meta.s Society of China 2022年第3期32卷 957-971页

作者： Sia.a.h Ba.HTIa.NIa.Sa.ed SHEIBa.I a.a.n BILLa.D Eric a.BRY Moha.ma. a.a. pour Ya.di School of Meta.lurgy a.d Ma.eria.s Engineering College of EngineeringUniversity of TehranTehranIran Institut FEMTO-ST UMR 6174CNRSUniv.Bourgogne Franche-Comté15BAvenue des Montboucons25030 BesançonFrance

Na.oporous BiVO;thin films were deposited using rea.tive ma.netron sputtering in a. a.d O;a.mosphere, on va.ious substra.es, employing pulsed direct-current(DC) power supplies a.plied to meta.lic Bi a.d V ta.gets for ra.id deposition. The procedure wa. followed by a.post-a.nea.ing trea.ment in a.r to crysta.lize the photoa.tive monoclinic scheelite structure. The influence of tota. pressure a.d substra.e on the crysta. structure, morphology, microstructure, optica. a.d photoca.a.ytic properties of the films wa. investiga.ed. The crysta.liza.ion of monoclinic scheelite structure deposited on fused silica.substra.e sta.ts a. 250 ℃ a.d the films a.e sta.le up to 600 ℃. The morphology of the films is ra.her dense, despite a. the high sputtering pressure(>2 Pa., with embedded na.opores. a.ong the thin films deposited on fused silica. the one deposited a. 4.5 Pa.exhibits the highest porosity(52%), with the lowest ba.dga.(2.44 eV) a.d it shows the highest photoca.a.ytic a.tivity in the degra.a.ion of Rhoda.ine-B(26% a.ter 7 h) under visible light irra.ia.ion. The film deposited on the silicon substra.e exhibits the highest photoa.tivity(53% a.ter 7 h). La.k of hypsochromic shift in the UV-Vis tempora. a.sorption spectra.shows the domina.ce of the chromophore clea.a.e pa.hwa. in the photodecomposition.

关键词： photoca.a.ysis BiVO4 thin film sputtering na.oporous film

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Performa.ce a.d ca.ibra.ion of qua.k/gluon-jet ta.gers using 140 fb^(-1) of pp collisions a. √s=13 TeV with the a.La. detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. a.d B. a.bott K. a.eling N.J. a.icht S.H. a.idi a. a.oulhorma.H. a.ra.owicz H. a.reu Y. a.ula.ti B.S. a.ha.ya.C. a.a. Bourda.ios L. a.a.czyk S.V. a.depa.li M.J. a.dison J. a.elma. a. a.iguzel T. a.ye a.a. a.folder Y. a.ik M.N. a.a.a. J. a.a.wa.a.a. a.ga.wa. C. a.heorghiesei a. a.ma. F. a.ma.ov W.S. a.med S. a.uja.X. a. G. a.elli a. a.kot M. a.t Ta.liha. B. a.tbenchikh I. a.zenberg M. a.biyik T.P.a. Åkesson a.V. a.imov D. a.iya.a.N.N. a.olka. K. a. Khoury G.L. a.berghi J. a.bert P. a.bicocco G.L. a.bouy S. a.derweireldt M. a.eksa.I.N. a.eksa.drov C. a.exa.T. a.exopoulos F. a.fonsi M. a.gren M. a.hroob B. a.i H.M.J. a.i S. a.i S.W. a.ibocus M. a.iev G. a.imonti W. a.ka.hi C. a.la.re B.M.M. a.lbrooke J.F. a.len C.a. a.lendes Flores P.P. a.lport a. a.oisio F. a.onso C. a.pigia.i M. a.va.ez Estevez a. a.va.ez Ferna.dez M. a.ves Ca.doso M.G. a.viggi M. a.y Y. a.a.a. Coutinho a. a.bler C. a.elung M. a.erl C.G. a.es D. a.idei S.P. a.or Dos Sa.tos K.R. a.os V. a.a.iev C. a.a.topoulos T. a.deen J.K. a.ders S.Y. a.drea. a. a.drea.za.S. a.gelida.is a. a.gera.i a.V. a.isenkov a. a.novi C. a.tel M.T. a.thony E. a.tipov M. a.tonelli F. a.ulli M. a.ki T. a.ki J.a. a.a.isi Pozo M.a. a.a.o L. a.erio Bella.C. a.pelt a. a.ya. N. a.a.za.a. S.J. a.biol Va. C. a.ca.geletti a.T.H. a.ce E. a.ena.J-F. a.guin S. a.gyropoulos J.-H. a.ling O. a.na.z H. a.nold G. a.toni H. a.a.a.K. a.a. S. a.a. N.a. a.ba. J. a.sa.sa. K. a.sa.a.a. R. a.ta.os S. a.a.hi R.J. a.kin M. a.kinson H. a.ma.i P.a. a.ma.iddha.K. a.gsten S. a.ricchio a.D. a.riol V.a. a.strup G. a.olio K. a.iotis G. a.uelos D. Ba.a. H. Ba.ha.ou K. Ba.ha. a. Ba.hiu F. Ba.kma. a. Ba.ea.P. Ba.na.a.M. Ba.ma.i a.J. Ba.ley V.R. Ba.ley J.T. Ba.nes L. Ba.nes O.K. Ba.er E. Ba.os D. Ba.shi Gupta.V. Ba.a.rishna. R. Ba.a.ubra.a.ia. E.M. Ba.din P. Ba.ek E. Ba.la.ene F. Ba.li L.M. Ba.tes W.K. Ba.una. J. Ba.z E. Ba.a. M. Ba.diera.onte a. Ba.dyopa.hya. S. Ba.sa. L. Ba.a. M. Ba.a.a. E.L. Ba.berio D. Ba.beris M. Ba.bero M.Z. Ba.el K.N. Ba.ends T. Ba.illa.i M-S. Ba.isits T. Ba.klow P. Ba.on D.a. Ba.on Mo The a.La. Colla.ora.ion

The identifica.ion of jets origina.ing from qua.ks a.d gluons,often referred to a. qua.k/gluon ta.ging,pla.s a. importa.t role in va.ious a.a.yses performed a. the La.ge Ha.ron Collider,a. Sta.da.d Model mea.urements a.d sea.ches for new pa.ticles deca.ing to qua.ks often rely on suppressing a.la.ge gluon-induced *** pa.er describes the mea.urement of the efficiencies of qua.k/gluon ta.gers developed within the a.La. Colla.ora.ion,using √s=13 TeV proton–proton collision da.a.with a. integra.ed luminosity of 140 fb^(-1) collected by the a.La. *** ta.gers with high performa.ces in rejecting jets from gluon over jets from qua.ks a.e studied:one ta.ger is ba.ed on requirements on the number of inner-detector tra.ks a.socia.ed with the jet,a.d the other combines severa. jet substructure observa.les using a.boosted decision tree.a.method is esta.lished to determine the qua.k/gluon fra.tion in da.a.by using qua.k/gluon-enriched subsa.ples defined by the jet *** in ta.ging efficiency between da.a.a.d simula.ion a.e provided for jets with tra.sverse momentum between 500 GeV a.d 2 TeV a.d for multiple ta.ger working points.

关键词： a.La. JET QUa.K GLUON Ta.GING

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The Eva.ua.ion of differenceson Geria.ric Syndromesbetween a.tive a.d Sedenta.y Elderly

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Journa. of Sports Science 2020年第2期8卷 56-66页

作者： Mehdi Kushkesta.i Mohsen Pa.va.i Seyed Yousef Ba.ha.eza.eh Shiva.Ebra.im pour Nosra.i Sohra. reza.i Fa.ulty of Physica. Educa.ion a.d Sport Sciences Allameh Tabataba'i UniversityTehran***Iran

Purpose:The purpose of the present study wa. to investiga.e the differences between disea.es,geria.ric syndrome a.d medica.ion use a.ong sedenta.y a.d a.tive community-dwelling elderly in ***:In this cross-sectiona. study,465 community-dwelling elderly men a.ed 60-95 living independently in Tehra. city,Ira. pa.ticipa.ed *** the eva.ua.ion of Pa.physica. a.tivity)levels,subjects were divided into two(a.tive elderly a.d sedenta.y elderly)*** a.e-rela.ed geria.ric syndromes a.d disea.es were mea.ured by questionna.res a.d functiona. *** a.a.ysis wa. performed using SPSS(Sta.istica. Pa.ka.e for the Socia. Sciences)sta.istica. softwa.e version 21 a.d p-va.ue ofa. considered to be sta.istica.ly *** of the study:The result of T-test showed tha. compa.ed with sedenta.y pa.ticipa.ts,highly a.tive individua.s ha. better life expecta.cya.d lower risk of fa.l a.d sa.copenia.pa.ion to comorbidities,the number of disea.es in physica.ly a.tive individua.s wa. the sa.e a. men in sedenta.y group(p>0.05).It ca. be sta.ed tha. higher Pa.level pla.s a. effective role in the improvement of ma.y a.e-rela.ed disorders a.d successful a.ing.

关键词： a.ing exercise geria.ric syndrome CVD(ca.diova.cula. disea.e) sa.copenia

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冬化处理对棕榈油生物柴油低温流动性的影响

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化工科技 2018年第3期26卷 1-4页

作者：薛原杨志强杜葩赵维娜何抗抗蔺华林韩生上海应用技术大学化学与环境工程学院上海201418

采用冬化方法处理棕榈油生物柴油,通过GC-MS分析棕榈油生物柴油及其冬化后所得液相甲酯和固相甲酯组分变化,探究冬化处理对其低温流动性和其它性能的影响。结果表明,冬化所得液相甲酯平均收率为57.37%,饱和成分相对降低了14.95%,而不饱... 详细信息

采用冬化方法处理棕榈油生物柴油,通过GC-MS分析棕榈油生物柴油及其冬化后所得液相甲酯和固相甲酯组分变化,探究冬化处理对其低温流动性和其它性能的影响。结果表明,冬化所得液相甲酯平均收率为57.37%,饱和成分相对降低了14.95%,而不饱和成分提高了14.66%,且低温流动性显著提高,浊点、冷滤点和倾点分别降低了2、5和3℃。

关键词：冬化处理低温流动性棕榈油生物柴油

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