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Deep eutectic solvents:Green multi-ta.k a.ents for susta.na.le super green hydrogen technologies

Journa. of Energy Chemistry 2024年第5期92卷 357-382页

作者： Ra.ya. a.-Fa.si Ma.n Ha.ya. Renewa.le Energy Engineering Progra. Faculty of Engineering and TechnologyMuscat UniversityMuscat 130Oman Chemica. Engineering Progra. Faculty of Engineering and TechnologyMuscat UniversityMuscat 130Oman

While relia.ce on renewa.le energy resources ha. become a.rea.ity, there is still a.need to deploy greener a.d more susta.na.le methods in order to a.hieve susta.na.le development goa.s. Indeed, green hydrogen is currently believed to be a.relia.le solution for globa. wa.ming a.d the pollution cha.lenges a.ising from fossil fuels, ma.ing it the resilient fuel of the future. However, the susta.na.ility of green hydrogen technologies is yet to be a.hieved. In this context, genera.ion of green hydrogen with the a.d of deep eutectic solvents(DESs) a. green mixtures ha. been demonstra.ed a. a.promising resea.ch a.ea. This systema.ic review a.ticle covers green hydrogen genera.ion through wa.er splitting a.d bioma.s fermenta.ion when DESs a.e utilized within the genera.ion process. It a.so discusses the incorpora.ion of DESs in fuel cell technologies. DESs ca. pla. a.va.iety of roles such a. solvent, electrolyte, or precursor;colloida. suspension a.d rea.tion medium;ga.va.ic repla.ement, sha.e-controlling, decora.ion, or extra.tive a.ent;fina.ly oxida.t. These roles a.e releva.t to severa. methods of green hydrogen genera.ion, including electroca.a.ysis, photoca.a.ysis, a.d fermenta.ion. a. such, it is of utmost importa.ce to screen potentia. DES formula.ions a.d determine how they ca. function in a.d contribute throughout the green hydrogen mobility sta.es. The rea.iza.ion of super green hydrogen genera.ion sta.ds out a. a.pivota. milestone in our journey towa.ds a.hieving a.more susta.na.le form of development;DESs ha.e grea. potentia. in ma.ing this milestone a.hieva.le. Overa.l, incorpora.ing DESs in hydrogen genera.ion constitutes a.promising resea.ch a.ea.a.d offers potentia. sca.a.ility for green hydrogen production, stora.e,tra.sport, a.d utiliza.ion.

关键词： Wa.ersplitting Biohydrogen Super green hydrogen Electroca.a.ysis Photoca.a.ysis Fuel cell Power-to-X

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Comprehensive Exergoeconomic a.a.ysis a.d Optimiza.ion of a.Novel Zero-Ca.bon-Emission Multi-Genera.ion System ba.ed on Ca.bon dioxide Cycle

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Journa. of Therma. Science 2024年第3期33卷 1065-1081页

作者： SUN Ya. LI Hongwei Wa.G di DU Cha.ghe School of Energy a.d Power Engineering Northeast Electric Power UniversityJilin132012China School of a.toma.ion Engineering Northeast Electric Power UniversityJilin132012China Xi’a. Institute of Electromecha.ica. Informa.ion Technology Xi’an710065China

This pa.er a.ms to conduct a.comprehensive exergoeconomic a.a.ysis of a.novel zero-ca.bon-emission multi-genera.ion system a.d propose a.fa.t optimiza.ion method combined with ma.hine *** deta.led exergoeconomic a.a.ysis of a.novel combined power,freshwa.er a.d cooling multi-genera.ion system is performed in this *** exergoeconomic a.a.ysis model is esta.lished by exergy flow theory.a.comprehensive exergy,exergoeconomic a.d environmenta. a.a.ysis is ca.ried *** critica. decision va.ia.les a.e resea.ched to bring out effects on the multi-genera.ion system exergoeconomic performa.ce.a.novel fa.t optimiza.ion method combining genetic a.gorithm a.d Ba.ging neura. network is *** a.va.ced na.ure compa.ison is ma.e between the proposed system a.d four simila. *** displa. tha. increa.ing the turbine inlet tempera.ure ca. improve exergy efficiency a.d decrea.e the tota. product unit *** multi-genera.ion system exergy destruction directly determines exergy efficiency a.d tota. exergy destruction cost *** tota. product unit cost in the cost optima. design ca.e is reduced by 7.7%a.d 25%,respectively,compa.ed with exergy efficiency optima. design ca.e a.d ba.ic design *** with four simila. ca.es,the proposed multi-genera.ion system ha. grea. a.va.ta.es in thermodyna.ic performa.ce a.d exergoeconomic *** pa.er ca. provide resea.ch methods a.d idea. for performa.ce a.a.ysis a.d fa.t optimiza.ion of multi-genera.ion system.

关键词： wa.te hea. recovery exergoeconomic a.a.ysis supercritica. ca.bon dioxide optimiza.ion ma.hine lea.ning

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a.molecula. insight into coke forma.ion process of va.uum residue in therma. cra.king rea.tion

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Petroleum Science 2024年第3期21卷 2130-2138页

作者： Ji-Gua.g Li Xin Guo Hua.-di Hou Hea.y Oil Processing Depa.tment Sinopec Research Institute of Petroleum Processing Co.LtdBeijing100083China

Understa.ding the coking beha.iors ha. been considered to be rea.ly essentia. for developing better va.uum residue processing technologies.a.ba.tery of therma. cra.king tests of typica. va.uum residue a. 410℃ with va.ious rea.tion time were performed to eva.ua.e the coke forma.ion *** tota. yields of idea. components including na.htha.a.mospheric ga. oil(a.O)a.d va.uum ga. oil(VGO)of therma. cra.king rea.tions increa.ed from 10.89%to 40.81%,a.d the conversion ra.ios increa.ed from8.05%to 43.33%with increa.ing the rea.tion time from 10 to 70 *** a.pha.tene content increa.ed from 12.14%to a.ma.imum of 22.39%a.d then decrea.ed,a.d this ma.imum of a.pha.tene content occurred a. the end of the coking induction *** a.pha.tenes during the coking induction period,a. the end a.d a.ter coking induction period of those tested therma. cra.king rea.tions were cha.a.terized to disclose the structure cha.ging rules for coke forma.ion process,a.d the coke forma.ion pa.hwa.s were discussed to revea. the coke forma.ion process a. molecula. level.

关键词： Va.uum residue Therma. cra.king a.pha.tene Coking induction period Sulfur Nitrogen

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Interpla. between Microscopic Structures a.d Ma.roscopic Viscoela.tic Properties of Polya.pholyte Gels

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Chinese Journa. of Polymer Science 2024年第9期42卷 1360-1367,I0008页

作者： You-Ca. Xue Yi-Ming Ya.g di Jia Beijing Na.iona. La.ora.ory for Molecula. Sciences Laboratory of Polymer Physics and ChemistryInstitute of ChemistryChinese Academy of SciencesBeijing100190China University of Chinese a.a.emy of Sciences Beijing100049China

Polya.pholyte gels,which ha.e hiera.chica. structures,exhibit excellent self-hea.ing properties a.d ha.e grea. promise for bioma.eria.s a.d *** investiga.ed the rela.ionship between microscopic structures a.d ma.roscopic viscoela.tic properties of polya.pholyte gels a.d found three fa.tors influencing their viscoela.tic properties,including the chemica. crosslinking bonds,topologica. enta.glements controlled by monomer concentra.ion,a.d the ionic *** strength pla.s a.ma.or role on the strength of ionic bonds.a.crossover point of ela.tic modulus a.d loss modulus wa. observed in the dyna.ic frequency sweeps a. low monomer concentra.ion or low chemica. crosslinking density for gels with intermedia.e strength of ionic *** solid-liquid tra.sition signa.ed by the crossover point is a.typica. fea.ure of dyna.ic a.socia.ed gels,representing the dyna.ica. a.socia.ion-dissocia.ion of the ionic bonds a.d full rela.a.ion of the topologica. enta.glements in the gel *** the crossover point disa.pea.s when the ionic bonds a.e too wea. or too strong to form“perma.ent”***,in the non-linea. yielding mea.urement,gels with intermedia.e strength of the ionic bonds a.e ductile a.d yield a. very la.ge shea. stra.n due to the self-hea.ing properties a.d the dyna.ic a.socia.ion-dissocia.ion of the ionic *** the self-hea.ing properties disa.pea. when the ionic bond strength is too wea. or too *** work revea.s the mecha.ism of how the dyna.ic a.socia.ion-dissocia.ion of ionic bonds influences both the linea. a.d non-linea. viscoela.tic properties of the polya.pholyte gels.

关键词： Polya.pholyte gel Ionic bond Topologica. enta.glement Self-hea.ing Hiera.chica. structure

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Design method a.d experimenta. study of a.ca.hode tool with a. extremely high leveling ra.io for electrochemica. ma.hining of blisk

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Chinese Journa. of a.rona.tics 2024年第4期37卷 593-608页

作者： Moqi SHEN Jia.LIU Jingta. Wa.G di ZHU College of Mecha.ica. a.d Electrica. Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China

To obta.n fina. pa.ts with the desired dimensiona. a.cura.y a.d repea.a.ility via.electrochemica. ma.hining(ECM), the ma.hining process must enter a. ECM ba.a.ced sta.e. However,for the ECM processing of blisk, a.key component of a.rospa.e engines, the surfa.e of the bla.e bla.k often ha. a. uneven a.lowa.ce distribution due to the na.row pa.sa.e of the ca.ca.e. It is difficult to remedy this issue in subsequent processing steps, which is necessa.y to ensure the dimensiona. a.cura.y a.d repea.a.ility of the fina. bla.e profile. To solve this problem, electrolytic ma.hining must be preceded by electrolytic sha.ing, which requires ca.hode tools with la.ge leveling ra.ios to quickly homogenize the bla.k surfa.e of the bla.e. In this study, to obta.n a.ca.hode tool with a. extremely high leveling ra.io, a.design method ba.ed on the va.ia.ion in the electrode ga. in the non-equilibrium electrolytic sta.e is proposed, a.d a.dissolution model ba.ed on the nonequilibrium sta.e is esta.lished. In this design method, the a.lowa.ce on the bla.k to be ma.hined is first divided into ma.y discrete a.lowa.ces with the norma. direction. The initia. ma.hining clea.a.ce, feed ra.e, a.d tota. ma.hining time a.e then ca.cula.ed using cla.sica. ECM equilibrium sta.e theory ba.ed on the ma.imum a.lowa.ce. Mea.while, the point coordina.es of the ca.hode tool a. ma.imum a.lowa.ce ca. be determined. The non-equilibrium model ca. then be used to ca.cula.e the rela.ive coordina.e positions corresponding to the rema.ning discrete a.lowa.ces. Fina.ly, the entire ca.hode tool profile is designed. Simula.ions, funda.enta. experiments, a.d blisk unit workpiece experiments were ca.ried out to va.ida.e the design a.proa.h. In the simula.ed processing of the pla.e workpiece, the leveling ra.io of the ca.hode tool designed by the proposed method(0.77)wa. 83% higher tha. tha. of the ca.hode tool designed using the tra.itiona. method. The simula.ion results were confirmed by processing experiments. In t

关键词： Electrochemica. ma.hining(ECM) Non-equilibrium ma.hining La.ge leveling ra.ios Ca.hode design Finite element simula.ion Blisk

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Predicting the a.tivity of single a.om ca.a.ysts

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Science China.Chemistry 2024年第9期67卷 2792-2793页

作者： Giova.ni di Liberto Gia.fra.co Pa.chioni dipa.timento di Scienza.dei Ma.eria.i Universitàdi Milano-Bicoccavia R.Cozzi 5520125 MilanoItaly

For a.long time,the existence of single-a.om ca.a.ysts(Sa.s),consisting of isola.ed a.oms sta.ilized in a.specific support,wa. not detected due to limita.ions in a.a.la.le cha.a.teriza.ion *** the pa.t two deca.es,however,the a.ility to synthesize a.d cha.a.terize these systems ha. opened the wa. towa.d designing a.d testing a.new cla.s of potentia. ca.a.ysts[1].

关键词： ca.a.ysts limita.ions testing

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Spa.io-tempora. coupled mode theory for nonloca. meta.urfa.es

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Light(Science & a.plica.ions) 2024年第2期13卷 267-282页

作者： a.a. Overvig Sa.der a.Ma.n a.drea.a.ù Photonics Initia.ive Advanced Science Research CenterCity University of New YorkNew YorkNY10031USA Physics Progra. Graduate Center of the City University of New YorkNew YorkNY10016USA

diffra.tive nonloca. meta.urfa.es ha.e recently opened a.broa. ra.ge of exciting developments in na.ophotonics resea.ch a.d a.plica.ions,levera.ing spa.ia.ly extended—yet loca.ly pa.terned—resona.t modes to control light with new degrees of *** conventiona. gra.ing responses a.e elega.tly ca.tured by tempora. coupled mode theory,current a.proa.hes a.e not well equipped to ca.ture the a.bitra.y spa.ia. response observed in the na.cent field of nonloca. ***,we introduce spa.io-tempora. coupled mode theory(STCMT),ca.a.le of elega.tly ca.turing the key fea.ures of the resona.t response of wa.efront-sha.ing nonloca. *** fra.ework ca. qua.tita.ively guide nonloca. meta.urfa.e design while ma.nta.ning compa.ibility with loca. meta.urfa.e fra.eworks,ma.ing it a.powerful tool to ra.iona.ly design a.d optimize a.broa. cla.s of ultra.hin optica. *** va.ida.e this STCMT fra.ework a.a.nst full-wa.e simula.ions of va.ious nonloca. meta.urfa.es,demonstra.ing tha. this tool offers a.powerful semi-a.a.ytica. fra.ework to understa.d a.d model the physics a.d functiona.ity of these devices,without the need for computa.iona.ly intense full-wa.e *** a.so discuss how this model ma. shed physica. insights into nonloca. phenomena.in photonics a.d the functiona.ity of the resulting *** a.releva.t exa.ple,we showca.e STCMT’s flexibility by a.plying it to study a.d ra.idly prototype nonloca. meta.urfa.es tha. spa.ia.ly sha.e therma. emission.

关键词： theory resona.t spa.ia.ly

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Rea.-time hybrid method for ma.euver detection a.d estima.ion of non-coopera.ive spa.e ta.gets

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a.trodyna.ics 2024年第3期8卷 437-453页

作者： Peng Zha.g di Wu Hexi Ba.yin School of a.rospa.e Engineering Tsinghua UniversityBeijing100084China

a.novel hybrid scheme for the ma.euver detection a.d estima.ion of a.noncoopera.ive spa.e ta.get wa. proposed in this *** optica. mea.urements,together with the ra.ge a.d ra.ge ra.e mea.urements from the ground-ba.ed ra.a.s,were used in the tra.king *** ma.y tra.king scena.ios,ra.a. resources for non-coopera.ive ta.gets a.e constra.ned,pa.ticula.ly for nea.-ea.th ta.gets,where multiple objects ca. only be tra.ked by a.single ra.a. a. a.*** limita.ion hinders the a.cura.e estima.ion of noncoopera.ive ta.get ma.euvers,a.d ca. a. times result in ta.get *** litera.ure ha. a.dressed this issue to some extent through va.ious ma.euvering ta.get-tra.king *** a.dress this problem,a.hybrid ma.euver detection a.d estima.ion method tha. combines the input detection a.d estima.ion extended ka.ma. filter a.d the weighted nonlinea. lea.t squa.es method is *** results demonstra.e tha. the proposed method outperforms the previous method,offering more a.cura.e a.d efficient estima.ions.

关键词： orbit determina.ion unknown ma.euver ma.euver detection a.d estima.ion extended Ka.ma. filter weighted lea.t squa.es method(WLS)

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Influence of High-Density Bedding Pla.e Cha.a.teristics on Hydra.lic Fra.ture Propa.a.ion in Sha.e Oil Reservoir

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Computer Modeling in Engineering & Sciences 2024年第9期140卷 3051-3071页

作者： Xia. Ya. di Wa.g Ha.ta. Yu Sta.e Key La.ora.ory of Sha.e Oil a.d Ga. Enrichment Mecha.isms a.d Effective Beijing102206China Sta.e Energy Center for Sha.e Oil Resea.ch a.d Development Beijing102206China Depa.tment of Geotechnica. Engineering College of Civil Engineering Tongji UniversityShanghai200092China Petroleum Explora.ion a.d Production Resea.ch Institute SINOPECBeijing102206China Key La.ora.ory of Deep Ea.th Science a.d Engineering(Sichua. University) Ministry of EducationChengdu610065China

The existence of high-density bedding pla.es is a.typica. cha.a.teristic of sha.e oil *** the beha.ior of hydra.lic fra.turing in high-density la.ina.ed rocks is significa.t for promoting sha.e oil *** this study,a.hydra.lic fra.turing model considering tensile fa.lure a.d frictiona. slip of the bedding pla.es is esta.lished within the fra.ework of the unified pipe-interfa.e element method(UP-IEM).The model developed for simula.ing the intera.tion between the hydra.lic fra.ture a.d the bedding pla.e is va.ida.ed by compa.ison with experimenta. *** hydra.lic fra.turing pa.terns in sea.ed a.d unsea.ed bedding pla.es a.e ***,the effects of differentia. stress,bedding pla.e permea.ility,spa.ing,a.d the friction coefficient of the bedding pla.e a.e *** results showed tha. a.single ma.n fra.ture crossing the bedding pla.es is more likely to form in sea.ed bedding pla.es under high differentia. *** decrea.e in bedding pla.e permea.ility a.d the increa.e in the friction coefficient a.so promote the fra.ture propa.a.ing perpendicula. to the bedding *** with high-density bedding pla.es ha. a.poorer fra.turing effect tha. tha. with low-density bedding pla.es,a. the hydra.lic fra.ture is prone to initia.e a.d propa.a.e a.ong the bedding ***,higher injection pressure is needed to ma.nta.n fra.ture propa.a.ion a.ong the *** increa.e in bedding density will lea. to a.sma.ler fra.turing *** fluid seepa.e into the bedding pla.es slows sha.e *** is recommended tha. increa.ing the injection flow ra.e,selecting a.terna.ive fra.turing fluids,a.d employing multi-well/multi-cluster fra.turing ma. be efficient methods to improve energy production in sha.e oil reservoirs.

关键词： Hydra.lic fra.turing bedding pla.es sha.e unified pipe-interfa.e element method

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Surfa.e engineering of ZnO electroca.a.yst by N doping towa.ds electrochemica. CO_(2) reduction

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Journa. of Energy Chemistry 2024年第1期88卷 71-81,I0002页

作者： Rohini Subha.h Ka.a.e Geta.ew Mulua.em Zewdie Ma.eswa.i a.una.ha.a. Jyoti Ba.iger suzan a.delfa.ta. Sa.ed Kwa.g-Soon a.n Jun-Seok Ha.Uk Sim Hyeyoung Shin Soon Hyung Ka.g Depa.tment of Interdisciplina.y Progra. for Photonic Engineering Chonnam National UniversityGwangju 61186Republic of Korea Gra.ua.e School of Energy Science a.d Technology(GEST) Chungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea Depa.tment of Chemistry Educa.ion a.d Optoelectronic Convergence Resea.ch Center Chonnam National UniversityGwangju 61186Republic of Korea Depa.tment of a.va.ced Chemica.s a.d Engineering Chonnam National UniversityGwangju 61186Republic of Korea School of Chemica. Engineering Yeungnam UniversityGyeongsan 38541Republic of Korea Depa.tment of Energy Engineering Korea Institute of Energy Technology(KENTECH)Naju 58217Republic of Korea

The discovery of efficient,selective,a.d sta.le electroca.a.ysts ca. be a.key point to produce the la.gesca.e chemica. fuels via.electrochemica. CO_(2) reduction(ECR).In this study,a. ea.th-a.unda.t a.d nontoxic ZnO-ba.ed electroca.a.yst wa. developed for use in ga.-diffusion electrodes(GDE),a.d the effect of nitrogen(N)doping on the ECR a.tivity of ZnO electroca.a.ysts wa. ***,a.ZnO na.osheet wa. prepa.ed via.the hydrotherma. method,a.d nitrida.ion wa. performed a. different times to control the N-doping *** a. increa.e in the N-doping content,the morphologica. properties of the na.osheet cha.ged significa.tly,na.ely,the 2D na.osheets tra.sformed into irregula.ly sha.ed ***,the ECR performa.ce of Zn O electroca.a.ysts with different N-doping content wa. a.sessed in 1.0 M KHCO_(3) electrolyte using a.ga.-diffusion electrode-ba.ed ECR *** the ECR a.tivity increa.ed a.ter a.sma.l a.ount of N doping,it decrea.ed for higher N doping *** them,the N:ZnO-1 h electroca.a.ysts showed the best CO selectivity,with a.fa.a.a.c efficiency(FE_(CO))of 92.7%a.-0.73 V *** hydrogen electrode(RHE),which wa. grea.er tha. tha. of a. undoped Zn O electroca.a.yst(FE_(CO)of 63.4%a.-0.78 V_(RHE)).a.so,the N:ZnO-1 h electroca.a.yst exhibited outsta.ding dura.ility for 16 h,with a.pa.tia. current density of-92.1 ma.cm^(-2).This improvement of N:ZnO-1 h electroca.a.yst ca. be expla.ned by density functiona. theory ca.cula.ions,demonstra.ing tha. this improvement of N:ZnO-1 h electroca.a.yst comes from(ⅰ)the optimized a.tive sites lowering the free energy ba.rier for the ra.e-determining step(RDS),a.d(ⅱ)the modifica.ion of electronic structure enha.cing the electron tra.sfer ra.e by N doping.

关键词： ZnO N-doped ZnO Ga.-diffusion electrode CO Selectivity Electrochemica. CO_(2)reduction

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