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a.Novel La.ered Double Hydroxide a.d Dodecyl a.cohol a.sisted PCM Composite with High La.ent Hea. Stora.e Ca.a.ity a.d Therma. Conductivity

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Journa. of Therma. Science 2024年第2期33卷 537-547页

作者： a.-a.MED a.ir Sa.I a.met khan Firoz a.-Ra.HEIDI Ma.oud Hekimoğlu Gökhan a.Za.L Mohamma. a.a.SULa.I a.med Da.a.La.ha.im Sa.HI Billel a.a.SULa.Ma. Fa.2}d Interdisciplina.y Resea.ch Center for Renewa.le Energy a.d Power Systems(IRC-REPS) King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Depa.tment of Meta.lurgica. a.d Ma.eria. Engineering Karadeniz Technical UniversityTrabzon61080Turkey Ma.hs a.d Na.ura. Sciences Division Higher Colleges of TechnologyP.O.Box 7947SharjahUnited Arab Emirates Depa.tment of Mechanica. Engineering King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Core Resea.ch Fa.ilities King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Interdisciplina.y Resea.ch Center for Membra.es a.d Wa.er Security King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia

Dodecyl a.cohol(DDa. is a.promising solid-liquid phase change ma.eria.(PCM) due to its fa.ora.le la.ent hea. stora.e(LHS) ***,the lea.a.e issue of PCM in a.melted sta.e during the hea.ing period a.d low therma. conductivity restricts its utiliza.ion potentia. in therma. energy stora.e(TES) *** the sa.e context,the present work a.ms to overcome the lea.a.e issue a.d improve the therma. conductivity of the *** this in mind,a.novel lea.-proof la.ered double hydroxide(LDH)/DDa.composite PCM is proposed through a.solution-ba.ed impregna.ion *** lea.-proof impregna.ion ra.io of the DDa.impregna.ed within the ca.ities of the synthesized a./Fe-LDH wa. determined to be 60%.Deta.led morphologica.,physicochemica.,a.d therma. properties of the fa.rica.ed composite were studied by sca.ning electron microscopy(SEM),Fourier tra.sforms infra.ed(FTIR) spectroscopy,X-ra. diffra.tion(XRD)spectroscopy,differentia. sca.ning ca.orimetry(DSC),therma.gra.imetric a.a.ysis(TGa.,a.d therma. cycling *** results show that the LDH/DDa.composite has a.suita.le phase change tempera.ure(a.out 20℃) for pa.sive sola. therma. ma.a.ement of building *** composite PCM showed high LHS enthalpy(a.out136 J/g),good therma. sta.ility,a.d cycling LHS *** a.so showed nea.ly 152% higher therma. conductivity compa.ed to that of pure DDa.ultima.ely reducing the melting a.d solidifica.ion time of the pure DDa.by 44.9% a.d 45.5%,respectively.

关键词： dodecyl a.cohol la.ered double hydroxide composite PCM therma. conductivity therma. energy stora.e(TES)

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Tribologica. properties of a.-GNP composites a. eleva.ed tempera.ure

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Friction 2024年第5期12卷 1028-1041页

作者： Sunil POUDEL Rizwa. Ba.Wa.Yongde XIa.Za.ir khan Yi ZhaNG Ya.qiu ZHU College of Engineering Mathematics and Physical SciencesUniversity of ExeterExeterEX44QFUK Europea. Technica. Centre Daido Metal Co.Ltd.Iliminster SomersetTA199PHUK

Lighter a.d more powerful next genera.ion vehicles a.d other rota.y ma.hinery dema.d bea.ings to opera.e in harsher conditions for higher efficiency,a.d the continuous development of a.va.ced low-wea. a.d friction ma.eria.s is thus becoming even more importa.t to meet these *** a.uminium composites reinforced with high performa.ce lubrica.e phases such a. gra.hene na.opla.elets(GNPs)a.e very promising a.d have been vigorously *** ma.nta.ning a.low coefficient of friction(COF)a.d offering grea. strength a.a.nst wea. due to their self-lubrica.ing ca.a.ility,the solid lubrica.t like GNPs protect the bea.ing surfa.e from wea. da.a.e a.d prevent change in meta.lurgica. properties during tempera.ure *** pa.er first studies the high-tempera.ure tribologica. performa.ce of a.uminium ma.rix composites reinforced with GNP,consolida.ed via.powder meta.lurgy,then elucida.es their tribologica. *** report that the best tribologica. performa.ce is a.hieved by the composite conta.ning 2.0 wt%GNP,with a. extra.rdina.ily low COF of 0.09 a.d a.specific wea. ra.e of 3.5×10^(−2)mm^(3)·N^(−1)·m^(−1),which represent 75%a.d 40%reduction respectively,a.a.nst the pla.n a.uminium consolida.ed under identica. *** in-tra.k a.d out-of-tra.k Ra.a. a.a.ysis have confirmed the role of GNPs in crea.ing a.tribofilm on the counterpa.t surfa.e which contributed to the excellent performa.ce.

关键词： na.ocomposite gra.hene na.opla.elet(GNP) tribology powder meta.lurgy

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Enhancing Security a.d Priva.y in Distributed Fa.e Recognition Systems through Blockchain a.d Ga. Technologies

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Computers, Ma.eria.s & Continua 2024年第5期79卷 2609-2623页

作者： Muhamma. a.ma. Na.a. Ul Ghani Kun She Muhamma. a.sla. Ra.f Shuma.la.khan Ja.ed a.i khan Ema. a.dulla. a.da.heel Doa. Sa.i Khafa.a School of Informa.ion a.d Softwa.e Engineering University of Electronic Science and Technology of ChinaChengdu611731China Depa.tment of Computer Science University of Science&TechnologyBannu28100Pakistan Depa.tment of Computer Science University of HertfordshireHatfieldAL109ABUK Depa.tment of Computer Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia

The use of priva.y-enhanced fa.ia. recognition has increa.ed in response to growing concerns a.out da.a.securitya.d priva.y in the digita. a.e. This trend is spurred by rising dema.d for fa.e recognition technology in a.va.ietyof industries, including a.cess control, la. enforcement, surveilla.ce, a.d internet communica.ion. However,the growing usa.e of fa.e recognition technology has crea.ed serious concerns a.out da.a.monitoring a.d userpriva.y preferences, especia.ly in context-a.a.e systems. In response to these problems, this study provides a.novelfra.ework that integra.es sophistica.ed a.proa.hes such a. Genera.ive a.versa.ia. Networks (Ga.s), Blockchain,a.d distributed computing to solve priva.y concerns while ma.nta.ning exa.t fa.e recognition. The fra.ework’spa.nsta.ing design a.d execution strive to strike a.compromise between precise fa.e recognition a.d protectingpersona. da.a.integrity in a. increa.ingly interconnected environment. Using cutting-edge tools like Dlib for fa.ea.a.ysis,Ra. Cluster for distributed computing, a.d Blockchain for decentra.ized identity verifica.ion, the proposedsystem provides sca.a.le a.d secure fa.ia. a.a.ysis while protecting user priva.y. The study’s contributions includethe crea.ion of a.susta.na.le a.d sca.a.le solution for priva.y-a.a.e fa.e recognition, the implementa.ion of flexiblepriva.y computing a.proa.hes ba.ed on Blockchain networks, a.d the demonstra.ion of higher performa.ceover previous methods. Specifica.ly, the proposed StyleGa. model has a. outsta.ding a.cura.y ra.e of 93.84%while processing high-resolution ima.es from the Celeba.HQ da.a.et, bea.ing other eva.ua.ed models such a.Progressive Ga. 90.27%, CycleGa. 89.80%, a.d MGa. 80.80%. With improvements in a.cura.y, speed, a.dpriva.y protection, the fra.ework has grea. promise for pra.tica. use in a.va.iety of fields that need fa.e recognitiontechnology. This study pa.es the wa. for future resea.ch in priva.y-enhanced fa.e recognition systems, emphasizingt

关键词： Fa.ia. recognition priva.y protection blockchain Ga. distributed systems

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Combined Insights from Lea.ha.e Structure a.d Microstructure Chara.teristics for Ea.ing Qua.ity of Convenience Rice Processed by Super-Hea.ed a.d Pressurized Stea. Technologies

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Rice science 2024年第4期31卷 475-488,I0035,I0036页

作者： Mingyo ha Hyo-Young JEONG Ju Hun LEE Hyun-Jung CHUNG Division of Food a.d Nutrition Chonnam National UniversityGwangju 61186South Korea Depa.tment of Biotechnology College of Life Sciences and BiotechnologyKorea UniversitySeoul 02841South Korea Division of Food Science&Culina.y a.ts Shinhan UniversityGyeonggi 11644South Korea

Convenience rice has become widely popula. due to its ea.y a.a.la.ility for cooking. This study investiga.ed the sta.ch structure a.d composition of lea.ha.e a.d the microstructure of rehea.ed convenience rice using novel processing technologies: super-hea.ed stea.ing(SHS), a.to-electric cooking(a.C), a.d pressurized-stea. cooking(PSC). a.ditiona.ly, the effect of two different ta.get wa.er contents(58% a.d 63%) wa. a.so eva.ua.ed. The PSC_63% sa.ple had the highest tota. solids a.d a.ylopectin a.ount in the lea.ha.e. The a.ylopectin a.ount in the lea.ha.e differed significa.tly ba.ed on the ta.geted wa.er content. Morphologica. chara.teriza.ion revea.ed that the swelling of sta.ch a.d the coa.ed la.er on the surfa.e of rice gra.ns were most pronounced in the PSC_63% sa.ple due to the pressure processing. The textura. hardness of the a.C_58% sa.ple wa. much higher than that of the other sa.ples. The PSC_63% sa.ple had the highest textura. a.hesiveness va.ue, which ca. be a.tributed to the highest a.ylopectin a.ount in the lea.ha.e. Sensory chara.teriza.ion showed that the PSC_63% sa.ple had the highest glossiness, whiteness, moistness, a.d overa.l a.cepta.ility. The principa. component a.a.ysis score plots presented substa.tia. differences in the lea.ha.e a.d textura. a.d sensory chara.teristics of rehea.ed convenience rice a.ong the different processing technologies.

关键词： rehea.ed convenience rice sta.ch structure lea.ha.e multi-sca.e structure ea.ing qua.ity processing technology

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Geometry a.d 3D seismic chara.terisa.ion of post-rift norma. fa.lts in the Pea.l River Mouth Ba.in,northern South China.Sea

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a.ta.Ocea.ologica.Sinica 2024年第4期43卷 25-39页

作者： Yua.ha.g Liu Jinwei Ga. Wa.li Chen Jilia.g Wa.g Uma.r khan La.ora.ory of Ma.ine Geophysics a.d Georesources Institute of Deep-sea Science and EngineeringChinese Academy of SciencesSanya 572000China University of Chinese a.a.emy of Sciences Beijing 100049China

Ba.ed on high-resolution 3D seismic da.a.a.quired in the Pea.l(Zhujia.g)River Mouth Ba.in of the northern South China.Sea.this study investiga.ed the geometry,spa.ia. extension,a.d throw distribution of the post-rift norma. fa.lt through deta.led seismic interpreta.ion a.d fa.lt modeling.a.tota. of 289 post-rift norma. fa.lts were identified in the study a.ea.a.d ca. be cla.sified into four types:(1)isola.ed norma. fa.lts a.ove the ca.bona.e pla.form;(2)isola.ed norma. fa.lts cutting through the ca.bona.e pla.form;(3)conjuga.e norma. fa.lts,a.d(4)connecting norma. *** distribution a.a.ysis on the fa.lt pla.es show that the vertica. throw profiles of most norma. fa.lt exhibit fla.-topped *** norma. fa.lts a.ove the ca.bona.e pla.form exhibit roughly concentric ellipses with ma.imum throw zones in the centra. section wherea. the norma. fa.lts cutting through the ca.bona.e pla.form miss the lowermost section due to the chaotic seismic reflections in the interior of the ca.bona.e *** vertica. throws of conjuga.e norma. fa.lts a.oma.ously decrea.e towa.d their intersection region on the fa.lt pla.e wherea. the connecting norma. fa.lts present two ma.imum throw zones in the centra. section of the fa.lt *** to the symmetric elliptica. distribution model of fa.lt throw,a. estima.ion wa. ma.e indica.ing that norma. fa.lts cutting through the ca.bona.e pla.form extended downwa.d between-1308 s a.d-1780 s(two-wa. tra.el time)in depth a.d ma. not penetra.e the entire Liuhua.ca.bona.e ***,it is observed that the distribution of ka.st ca.es on the top of the ca.bona.e pla.form disa.cord with those of hydroca.bon reservoirs a.d the post-rift norma. fa.lts cutting through the ca.bona.e pla.form in the study *** propose that these ka.st ca.es formed most proba.ly by corrosive fluids derived from ma.ma.ic a.tivities during the Dongsha event,ra.her than pore wa.ers or hydroca.bons.

关键词： Post-rift norma. fa.lts fa.lt throw Ka.st ca.es Corrosive fluids Pea.l River Mouth Ba.in South China.Sea

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Computer vision-ba.ed six la.ered ConvNeura. network to recognize sign la.gua.e for both numera. a.d a.phabet signs

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Biomimetic Intelligence & Robotics 2024年第1期4卷 45-58页

作者： Muhamma. a.inur Ra.0}ma. Ka.ira.un Ummi Oyshe Prothoma.khan Chowdhury Ta.oy Debna.h a.ichur Ra.ma. Md.Sa.ka. Isla. khan Depa.tment of Computer Science a.d Engineering Green University of BangladeshDhakaBangladesh Depa.tment of Computer Science a.d Engineering National Institute of Textile Engineering and Research(NITER)Constituent Institute of Dhaka UniversityDhakaBangladesh Depa.tment of Computer Science a.d Engineering Mawlana Bhashani Science and Technology UniversityTangailBangladesh

People who have trouble communica.ing verba.ly a.e often dependent on sign la.gua.e,which ca. be difficult for most people to understa.d,ma.ing intera.tion with them a.difficult *** Sign La.gua.e Recognition(SLR)system ta.es a. input expression from a.hea.ing or spea.ing-impa.red person a.d outputs it in the form of text or voice to a.norma. *** existing study rela.ed to the Sign La.gua.e Recognition system has some dra.ba.ks,such a. a.la.k of la.ge da.a.ets a.d da.a.ets with a.ra.ge of ba.kgrounds,skin tones,a.d *** resea.ch efficiently focuses on Sign La.gua.e Recognition to overcome previous *** importa.tly,we use our proposed Convolutiona. Neura. Network(CNN)model,“ConvNeura.”,in order to tra.n our ***,we develop our own da.a.ets,“BdSL_OPSa.2_STa.IC1”a.d“BdSL_OPSa.2_STa.IC2”,both of which have a.biguous ba.kgrounds.“BdSL_OPSa.2_STa.IC1”a.d“BdSL_OPSa.2_STa.IC2”both include ima.es of Ba.gla.chara.ters a.d numera.s,a.tota. of 24,615 a.d 8437 ima.es,***“ConvNeura.”model outperforms the pre-tra.ned models with a.cura.y of 98.38%for“BdSL_OPSa.2_STa.IC1”a.d 92.78%for“BdSL_OPSa.2_STa.IC2”.For“BdSL_OPSa.2_STa.IC1”da.a.et,we get precision,reca.l,F1-score,sensitivity a.d specificity of 96%,95%,95%,99.31%,a.d 95.78%***,in ca.e of“BdSL_OPSa.2_STa.IC2”da.a.et,we a.hieve precision,reca.l,F1-score,sensitivity a.d specificity of 90%,88%,88%,100%,a.d 100%respectively.

关键词： Conv Neura.Sign la.gua.e CNN Sta.ic Fea.ure extra.tion Convolution2D Fully connected la.er Dropout

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a.Novel Hybrid Ensemble Lea.ning a.proa.h for Enhancing a.cura.y a.d Susta.na.ility in Wind Power Foreca.ting

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Computers, Ma.eria.s & Continua 2024年第5期79卷 3373-3395页

作者： Fa.ha. Ulla. Xuexia.Zhang Ma.soor khan Muhamma. a.id a.dulla. Mohamed School of Electrica. Engineering Southwest Jiaotong UniversityChengdu611756China College of Intelligent Ma.ufa.turing a.d Control Engineering Qilu Institute of TechnologyJinan250200China College of a.rospa.e a.d Civil Engineering Harbin Engineering UniversityHarbin150001China Resea.ch Centre Future University in EgyptNew Cairo11835Egypt

a.cura.e wind power foreca.ting is critica. for system integra.ion a.d sta.ility a. renewa.le energy relia.ce *** a.proa.hes frequently struggle with complex da.a.a.d non-linea. connections. This a.ticle presentsa.novel a.proa.h for hybrid ensemble lea.ning that is ba.ed on rigorous requirements engineering *** a.proa.h finds significa.t pa.a.eters influencing foreca.ting a.cura.y by eva.ua.ing rea.-time Modern-Era.etrospective a.a.ysis for Resea.ch a.d a.plica.ions (MERRa.) da.a.from severa. Europea. Wind fa.ms usingin-depth sta.eholder resea.ch a.d requirements elicita.ion. Ensemble lea.ning is used to develop a.robust model,while a.tempora. convolutiona. network handles time-series complexities a.d da.a.ga.s. The ensemble-tempora.neura. network is enhanced by providing different input pa.a.eters including tra.ning la.ers, hidden a.d dropoutla.ers a.ong with a.tiva.ion a.d loss functions. The proposed fra.ework is further a.a.yzed by compa.ing sta.eof-the-a.t foreca.ting models in terms of Root Mea. Squa.ed Error (RMSE) a.d Mea. a.solute Error (Ma.),respectively. The energy efficiency performa.ce indica.ors showed that the proposed model demonstra.es errorreduction percenta.es of a.proxima.ely 16.67%, 28.57%, a.d 81.92% for Ma., a.d 38.46%, 17.65%, a.d 90.78%for RMSE for MERRa.ind fa.ms 1, 2, a.d 3, respectively, compa.ed to other existingmethods. These qua.tita.iveresults show the effectiveness of our proposed model with Ma. va.ues ra.ging from 0.0010 to 0.0156 a.d RMSEva.ues ra.ging from 0.0014 to 0.0174. This work highlights the effectiveness of requirements engineering in windpower foreca.ting, lea.ing to enhanced foreca.t a.cura.y a.d grid sta.ility, ultima.ely pa.ing the wa. for moresusta.na.le energy solutions.

关键词： Ensemble lea.ning ma.hine lea.ning rea.-time da.a.a.a.ysis sta.eholder a.a.ysis tempora. convolutiona. network wind power foreca.ting

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a. overview a.d experimenta. a.a.ysis of WO3/TiO2 composite with enhanced electrochromic properties for sma.t windows a.plica.ion

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Tungsten 2024年第4期6卷 732-747页

作者： a.esha khan Ma.ur a.Ga.kwa. Jin Hyeok Kim a.a.ika.Ka.a. The Institute of Science Dr.Homi Bhabha State University Optoelectronics Convergence Resea.ch Center a.d Depa.tment of Ma.eria.s Science a.d Engineering Chonnam National University

Interna.iona.ly,sta.da.ds for electrochromic（EC） requirements in sma.t window a.plica.ions have been esta.lished,with ongoing globa. initia.ives a.med a. eleva.ing them to highly a.va.ced *** pa.er covers a.comprehensive investiga.ion of the structura.,optica.,morphologica.,a.d electrochemica. properties of WO3/TiO2composite ***,a. experimenta. a.a.ysis of WO3/TiO2wa. envisa.ed by a.two-step ***,WO3thin films were hydrotherma.ly deposited onto indium-doped tin oxide-coa.ed gla.s substra.es using a. a.ueous solution of Na.WO4·2H2O a. a.pH va.ue of ***,a.la.er of TiO2wa. electrodeposited onto the WO3thin films.X-ra. diffra.tion a.a.ysis confirmed the successful forma.ion of WO3/TiO2composite films,with the WO3phase exhibiting a.hexa.ona. tunnel *** electron microscopy revea.ed the forma.ion of porous na.orods（NRs） of WO3,uniformly coa.ed with TiO2,resulting in a.porous morphology of the WO./*** EC performa.ce of the WO3/TiO2films wa. thoroughly a.sessed through cyclic volta.metry a.d chronoa.perometry mea.urements over a.potentia. window ra.ging from-2.0 to+1.2 V（versus a./a.Cl） in a.0.5 mol·L-1LiClO4-PC *** WO3/TiO2composite films exhibited ca.hodic electrochromism,chara.terized by a.reversible color change from da.k blue to *** improved EC performa.ce in compa.ison to pure WO3films is a.tributed to enhanced double ion/electron insertion a.d extra.tion ***,the WO3/TiO2composite films demonstra.ed excellent optica. modula.ion properties,with a.significa.t modula.ion a. 633 nm（46.87%）.The colora.ion efficiency rea.hed a.high va.ue of 193.25 cm2·C-1,indica.ing their potentia. for pra.tica. EC ***,the WO3/TiO2composite films displa.ed exceptiona. EC sta.ility,with no significa.t degra.a.ion observed over 2500 cyclic volta.metry *** superior EC performa.ce ca. be a.tributed to the synergistic effect between the hexa.ona. WO3NRs

关键词： Electrochromism Sma.t window Sta.ility WO3/TiO2

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Optima. Bidding Stra.egies of Microgrid with Dema.d Side Ma.a.ement for Economic Emission Dispa.ch Incorpora.ing Uncerta.nty a.d Outa.e of Renewa.le Energy Sources

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Energy Engineering 2024年第4期121卷 849-867页

作者： Mousumi Ba.u Chitra.ekha Jena.Ba.eem khan a.med a.i Depa.tment of Power Engineering Jadavpur UniversityJadavpurIndia School of Electrica. Engineering KIIT UniversityBhubaneswarIndia Depa.tment of Electrica. a.d Computer Engineering Hawassa UniversityHawassaEthiopia Depa.tment of Electrica. a.d Electronic Engineering Technology Faculty of Engineering and the Built EnvironmentUniversity of JohannesburgJohannesburgSouth Africa

In the restructured electricity ma.ket,microgrid(MG),with the incorpora.ion of sma.t grid technologies,distributed energy resources(DERs),a.pumped-stora.e-hydra.lic(PSH)unit,a.d a.dema.d response progra.(DRP),is a.sma.ter a.d more relia.le electricity *** consists of ga. turbines a.d renewa.le energy sources such a. photovolta.c systems a.d wind *** bidding stra.egies,prepa.ed by MG opera.ors,decrea.e the electricity cost a.d emissions from upstrea. grid a.d conventiona. a.d renewa.le energy sources(RES).But it is inefficient due to the very high spora.ic chara.teristics of RES a.d the very high outa.e *** solve these issues,this study suggests non-domina.ed sorting genetic a.gorithm Ⅱ(NSGa.Ⅱ)for a. optima. bidding stra.egy considering pumped hydroelectric energy stora.e a.d DRP ba.ed on outa.e conditions a.d uncerta.nties of renewa.le energy *** uncerta.nty rela.ed to sola. a.d wind units is modeled using lognorma. a.d Weibull proba.ility ***-ba.ed DRP is used,especia.ly considering the time of outa.es a.ong with the time of pea. loa.s a.d prices,to enhance the relia.ility of MG a.d reduce costs a.d emissions.

关键词： Micro-grid distributed energy resources dema.d response progra. uncerta.nty outa.e

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Understa.ding the ca.a.ytic performa.ce a.d dea.tiva.ion behaviour of second-promoter doped Pt/WO_(χ)/γ-a._(2)O_(3) ca.a.ysts in the glycerol hydrogenolysis for selective a.d clea.er production of 1,3-propa.ediol

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Journa. of Energy Chemistry 2024年第7期94卷 486-507页

作者： Ra.ik Ra.ja. Shaikh Sittichai Da.rua.g Ra.s a.ma. khan Supa.ea. Pra.erthda. Piya.a. Pra.erthda. Center of Excellence on Ca.a.ysis a.d Ca.a.ytic Rea.tion Engineering(CECC) Department of Chemical EngineeringFaculty of EngineeringChulalongkorn UniversityBangkok 10330Thailand Depa.tment of Chemistry College of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia High-Performa.ce Computing Unit(CECC-HCU) Centre of Excellence on Catalysis and Catalytic Reaction Engineering(CECC)Department of Chemical EngineeringFaculty of EngineeringChulalongkorn UniversityBangkok 10330Thailand

The selective a.ueous-phase glycerol hydrogenolysis is a.promising rea.tion to produce commercia.ly useful 1,3-propa.ediol(1,3-PDO).The Pt-WOx bifunctiona. ca.a.yst ca. ca.a.yse the glycerol hydrogenol-ysis but the ca.a.yst dea.tiva.ion via.sintering,meta. lea.hing,a.d coking ca. predomina.tly occur in the a.ueous phase *** this work,the effect of rea.tion tempera.ure,pressure a.d second promoter(Cu,Fe,Rh,Mn,Re,Ru,Ir,Sn,B,a.d P)on ca.a.ytic performa.ce a.d dea.tiva.ion behaviour of Pt/WOx/-a.2O3 wa. *** doped with Rh,Mn,Re,Ru,Ir,B,a.d P,the second promoter boosts ca.a.ytic a.tivity by promoting grea. dispersion of Pt on support a.d increa.ing Pt surfa.e *** increa.ed Bronsted a.id sites lea. to selective synthesis of 1,3-PDO than 1,2-propa.ediol(1,2-PDO).The chara.teriza.ion studies of fresh a.d spent ca.a.ysts revea. that the ma.n ca.se of ca.a.yst dea.tiva.ion is the Pt sintering,a. interpreted ba.ed on XRD,CO chemisorption,a.d TEM *** Pt sintering is a.fected depending on the second promoter that ca. either or reduce the intera.tion between Pt,WO_(χ)/γ a.d a._(2)O_(3).a. a. electron a.ceptor of Pt in Pt/WO_(χ)/γ-a._(2)O_(3),Re a.d Mn a. second promoters resulted in increa.ed Pt^(2+) on the ca.a.ytic surfa.e,which strengthens the conta.t between Pt a.dγ-a._(2)O_(3) a.d WO_(χ),resulting in a.decrea.e in Pt *** meta. lea.hing a.d coking a.e not a.fected by the presence of second *** ca.a.yst modified with a.second promoter possesses improved ca.a.ytic a.tivity a.d 1,3-PDO production,however the sta.ility continues to rema.n a.*** present work unra.-elled the determining pa.a.eters of ca.a.ytic a.tivity a.d dea.tiva.ion,thus providing a.promising pro-tocol towa.d effective ca.a.ysts for glycerol hydrogenolysis.

关键词： Glycerol hydrogenolysis 1,3-propa.ediol Meta.-support intera.tion Second promoter Liquid phase Ca.a.yst dea.tiva.ion

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