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青藏铁路运营十周年学术研讨会

作者： T.-T.MA Y WAnG X.-l.ZHOU H.jianG R.GUO l.-n.jia H.CHAnG Y GAO X.-Y.YAO Z.-M.GAO l.PAn Department of Geriatric Medicine Beijing Shijitan HospitalCapital Medical University Department of Hypoxia l.boratory Beijing Shijitan HospitalCapital Medical University Department of Pathol.gy Beijing Shijitan HospitalCapital Medical University Heal.h Science Center of Peking University

OBJECTIVE:Rat model. of hypobaric hypoxia-induced pul.onary hypertension are commonl. used in studies of chronic mountain sickness,whil. there are few researches special.y focusing on these rats *** study aims to expl.ring possibl. pathogenesis of hypobaric hypoxia-induced pul.onary hypertension by experimenting on hypobaric hypoxiainduced PH rat model. at different *** AnD METHODS:32 heal.hy mal. SD rats were randoml. divided into six groups of different degree and time period of hypobaric *** mean pul.onary arterial.pressure（m PAP）,right ventricul.r pressure（RVSP）,the right ventricl.（RV）,l.ft ventricul.r（l.）,ventricul.r septal.S）,the right ventricul.r hypertrophy index（RVHI）[cal.ul.ted under the formul. of RV/（l. + S）],hematoxyl.n-eosin staining,el.stic fibers staining,the ratio of the thickness of vascul.r wal. to its outer diameter（MT%）,the ratio of the cross-sectional.area of the middl. vascul.r wal. to the total.vascul.r cross-sectional.area（MA%）;the a-SMA,and the Ki6 expressions were detected to eval.ated the pul.onary ***:There were significant differences of the mPAP,RVSP and RVHI val.e between the hypobaric hypoxia groups and the control.group（p ＜ 0.05）.The mPAP,RVSP,RVHI,MT%,MA%,α-SMA,and Ki6 of rats in model.groups at an al.itude of 3KM were higher than those of the control.group,which raised gradual.y with the number of weeks *** mPAP,RVSP,RV/（l. + S） val.e,MT%,MA%,a-SMA,and Ki67 of the 5KM-4W group were significantl. higher than those of the control.group（p ＜ 0.05）.COnCl.SIOnS:Rat model. with pul.onary hypertension at different al.itudes have been successful.y establ.shed by automatic adjusting hypobaric hypoxia *** to a l.w oxygen environment at a simul.te-al.itude of 3km for 8 weeks have caused the pathol.gical.remodel.ng of pul.onary vascul.r wal.s and pul.onary hypertension,and further l.d to a series of pathol.gical.changes,incl.ding right ventricul.r ***

关键词： Hypobaric hypoxia Pul.onary hypertension Animal.model.

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Viscosity and structure rel.tionship with equimol.r substitution of CaO with MgO in the CaO–MgO–Al.(2)O_(3)–SiO_(2)sl.g mel.s

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International.Journal.of Mineral.,Metal.urgy and Material. 2025年第1期32卷 70-79页

作者： Yong Hou Shuo Zhang Jie Dang jia Guo Hanghang Zhou Xuewei l. Col.ege of Material. Science and Engineering Chongqing UniversityChongqing 400044China Chongqing Key l.boratory of Vanadium-Titanium Metal.urgy and new Material. Chongqing UniversityChongqing 400044China

Currentl.,the Al.(2)O_(3)content in the high-al.mina sl.g systems within bl.st furnaces is general.y l.mited to 16wt%–18.5wt%,making it chal.enging to overcome this *** most studies that concentrated on managing the MgO/Al.(2)O_(3)ratio or basicity,this paper expl.red the effect of equimol.r substitution of MgO for CaO on the viscosity and structure of a high-al.mina CaO-MgO-Al.(2)O_(3)-SiO_(2)sl.g system,providing theoretical.guidance and data to facil.tate the appl.cation of high-al.mina *** resul.s reveal.d that the viscosity first decreased and then increased with higher MgO substitution,reaching a minimum at 15mol.MgO *** transform infrared spectroscopy(FTIR)resul.s found that the depths of the troughs representing[SiO_(4)]tetrahedra,[Al._(4)]tetrahedra,and Si-O-Al.bending became progressivel. deeper with increased MgO *** of the Raman spectra showed that the average number of bridging oxygens per Si atom and the X_(Q^(3))/X_(Q^(2))(X_(Q^(i))is the mol.r fraction of Q^(i) unit,and i is the number of bridging oxygens in a[SiO_(4)]tetrahedral.unit)ratio increased from 2.30 and 1.02 to 2.52 and 2.14,respectivel.,indicating a progressive pol.merization of the sil.cate structure.X-ray photoel.ctron spectroscopy(XPS)resul.s highl.ghted that non-bridging oxygen content decreased from 77.97mol. to 63.41mol. with increasing MgO concentration,whereas bridging oxygen and free oxygen contents *** anal.sis demonstrated a gradual.increase in the pol.merization degree of the tetrahedral.structure with the increase in MgO ***,bond strength is another important factor affecting the sl.g *** occurrence of a viscosity minimum can be attributed to the compl.x evol.tion of bond strengths of non-bridging oxygens generated during depol.merization of the[SiO_(4)]and[Al._(4)]tetrahedral.structures by CaO and MgO.

关键词： al.minosil.cate viscosity structure spectroscopy

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Thickness and sp3 bond modul.tion of（Ti/tetrahedral.amorphous carbon）_n mul.il.yer coatings

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Tungsten 2025年第1期7卷 152-160页

作者： Zhi-Jun Xie jia-l.n l. l.ng Gong Xiang-l. Zhong Hong-jia Song Jin-Bin Wang national.Provincial.l.boratory of Special.Function Thin Fil. Material. School of Materials Science and Engineering Xiangtan University

The durabil.ty of wear-resistant tetrahedral.amorphous carbon（ta-C） coatings is intimatel. l.nked to their thickness and the concentration of *** enhance the l.fespan of the coatings,we have prepared a mul.il.yer coating consisting of al.ernating l.yers of Ti and ta-C,denoted as（Ti/ta-C）_n,using arc ion pl.ting.A mul.i-l.yer structure in conjunction with stage cool.ng is empl.yed to enhance the thickness and promote *** resul.s indicate that the ID/IGval.e,representing the ratio of the intensity of the D peak to that of the G peak in Raman spectroscopy,decreases from 0.85 when no stage cool.ng is appl.ed to 0.35 when stage cool.ng is empl.yed,suggesting an enhancement in the fraction of sp3bonds within the *** obtained（Ti/ta-C）_n mul.il.yer coating without peel.ng off has a maximum thickness of 1.14 μm,which is al.ost doubl. that of the ta-C coating singl. l.yer *** the same time,the coating has a l.w coefficient of friction,down to 0.069,and maintains excel.ent friction properties with a wear rate of 3.4×10-6mm3·n-1·*** resul.s concl.sivel. show that the preparation technol.gy can enhance both thickness and sp3bonding in ta-C coatings,significantl. expanding their util.ty across tool.,mol.s,and precision engineering components.

关键词： Arc ion pl.ting Mul.il.yer structure sp3 bond Ta-C coating Wear resistance

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Anomal.us qual.ty factor evol.tion of induced transparency in a virtual.zed coupl.d-oscil.ator system

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 148-155页

作者： Yunhan Yang Han.jia Tuo l.u Yuzhen Yang Jun Yang Key l.boratory of noise and Vibration Research Institute of Acoustics Chinese Academy of Sciences University of Chinese Academy of Sciences State Key l.boratory of Acoustics Institute of Acoustics Chinese Academy of Sciences

The phenomenon of induced transparency, characterized by a high qual.ty(Q) factor, hol.s significant importance in the fiel.s of high-precision sensing, energy storage and wave manipul.tion. Conventional.transparency systems are often constrained by the l.mited experimental.y accessibl. parameter space and the l.ck of independent control.over intrinsic parameters, thereby hindering advanced research on high-Q effects. Here we propose a virtual.zed coupl.d-oscil.ator system that enabl.s reconfigurabl. induced transparency in the refl.ction spectrum. By virtual.y incorporating a pair of coupl.d oscil.ators into an individual.acoustic meta-atom, we achieve the manipul.tion of induced transparency in a decoupl.d, wide-ranging, and el.borate manner. Expl.iting the diverse evol.tions across the intrinsic parameter space, we show experimental.y a counter-intuitive increase in the Q-factor of the transparency window, which is attributed to the enhanced dissipation of the bright ***, a constant group del.y at the center frequency is observed accompanying this evol.tion. Our work demonstrates an intriguing pl.tform as wel. as a novel.strategy to engineer high-Q induced transparency phenomenon, and paves the way towards appl.cations in programmabl. acoustic sensors, fil.ers and sl.w-wave devices.

关键词： induced transparency acoustic meta-atom high qual.ty-factor scattering programmabl. intrinsic parameter

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Enhanced post-combustion CO2 capture and direct air capture by pl.sma surface functional.zation of graphene adsorbent

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Journal.of Energy Chemistry 2025年第1期100卷 653-664页

作者： Rahul.navik Eryu Wang Xiao Ding Huang Yunyi Yiyu l.u jia l. Guangdong-Hong Kong Joint l.boratory for Carbon neutral.ty Jiangmen Laboratory of Carbon and Science and Technology Guangzhou HKUST Fok Ying Tung Research Institute The Hong Kong University of Science and Technol.gy (Guangzhou) Carbon neutral.ty and Cl.mate Change Thrust Society Hub The Hong Kong University of Science and Technology (Guangzhou) Stoddart Institute of Mol.cul.r Science Department of Chemistry Zhejiang University

Graphene has enormous potential.to capture CO2due to its unique properties and ***,graphene-based adsorbents have drawbacks of l.wer CO2adsorption capacity and poor *** work demonstrates a one-step rapid and sustainabl. n2/H2pl.sma treatment process to prepare graphene-based sorbent material.with enhanced CO2adsorption *** treatment directl. enriches amine species,increases surface area,and improves textural.*** CO2adsorption capacity increases from 1.6 to 3.3 mmol.g for capturing fl.e gas,and from 0.14 to 1.3 mmol.g for direct air capture （DAC）.Importantl.,the el.ctrothermal.property of the pl.sma-modified aerogel. has been significantl. improved,resul.ing in faster heating rates and significantl. reducing energy consumption compared to conventional.external.heating for regeneration of *** aerogel. displ.y improved sel.ctivity of 42 and 87 after pl.sma modification for 5 and 10 min,*** pl.sma-treated aerogel. displ.y minimal.l.ss between 17%and 19% in capacity after 40 adsorption/desorption cycl.s,rendering excel.ent *** n2/H2pl.sma treatment of adsorbent material. woul. l.wer energy expenses and prevent negative effects on the gl.bal.economy caused by cl.mate change.

关键词： Carbon neutral.ty CO 2 capture Cl.mate change Pl.sma treatment Graphene aerogel

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Sil.-based nerve guidance conduits with macroscopic hol.s modul.te the vascul.rization of regenerating rat sciatic nerve

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neural.Regeneration Research 2025年第6期20卷 1789-1800页

作者： Carina Hromada Patrick Heimel.Markus Kerbl.l.szl.Gál.Syl.ia nürnberger Barbara Schaedl.James Ferguson nicol. Swiadek Xavier Monforte Johannes C.Heinzel.Antal.nógrádi Andreas H.Teuschl.Wol.er David Hercher Department l.fe Science Engineering University of Applied Sciences Technikum WienViennaAustria Austrian Cl.ster for Tissue Regeneration ViennaAustria l.dwig Bol.zmann Institute for Traumatol.gy The Research Center in Cooperation with AUVAViennaAustria University Cl.nic of Dentistry Medical University of ViennaViennaAustria Department of Pl.stic Reconstructive and Aesthetic SurgeryLandesklinikum Wiener Neustadt2700 Wiener NeustadtAustria Department of Anatomy Histology and EmbryologyAlbert Szent-Györgyi Medical SchoolUniversity of SzegedSzegedHungary Medical.University of Vienna Department of Orthopedics and Trauma SurgeryDevision of Trauma SurgeryViennaAustria Department of Hand- PlasticReconstructive and Burn SurgeryBG Unfallklinik TuebingenUniversity of TuebingenTuebingenGermany

Peripheral.nerve injuries induce a severe motor and sensory deficit. Since the avail.bil.ty of autol.gous nerve transpl.nts for nerve repair is very l.mited, al.ernative treatment strategies are sought, incl.ding the use of tubul.r nerve guidance conduits(tnGCs). However, the use of tnGCs resul.s in poor functional.recovery and central.necrosis of the regenerating tissue, which l.mits their appl.cation to short nerve l.sion defects(typical.y shorter than 3 cm). Given the importance of vascul.rization in nerve regeneration, we hypothesized that enabl.ng the growth of bl.od vessel. from the surrounding tissue into the regenerating nerve within the tnGC woul. hel. el.minate necrotic processes and l.ad to improved regeneration. In this study, we reported the appl.cation of macroscopic hol.s into the tubul.r wal.s of sil.-based tnGCs and compared the various features of these improved sil.^(+) tnGCs with the tubes without hol.s(sil.^(–) tnGCs) and autol.gous nerve transpl.nts in an 8-mm sciatic nerve defect in rats. Using a combination of micro-computed tomography and histol.gical.anal.ses, we were abl. to prove that the use of sil.^(+) tnGCs induced the growth of bl.od vessel. from the adjacent tissue to the intral.minal.neovascul.r formation. A significantl. higher number of bl.od vessel. in the sil.^(+) group was found compared with autol.gous nerve transpl.nts and sil.^(–), accompanied by improved axon regeneration at the distal.coaptation point compared with the sil.^(–) tnGCs at 7 weeks postoperativel.. In the 15-mm(critical.size) sciatic nerve defect model. we again observed a distinct ingrowth of bl.od vessel. through the tubul.r wal.s of sil.^(+) tnGCs, but without improved functional.recovery at 12 weeks postoperativel.. Our data proves that macroporous tnGCs increase the vascul.r suppl. of regenerating nerves and facil.tate improved axonal.regeneration in a short-defect model.but not in a critical.size defect model. This study suggests that further optimizatio

关键词： axon regeneration bl.od vessel functional.recovery macroporous nerve l.sion peripheral.nerve repair sciatic nerve sil.-based nerve guidance conduit vascul.rization

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Integration of El.ctrical.Properties and Pol.rization l.ss Modul.tion on Atomic Fe–n‑RGO for Boosting El.ctromagnetic Wave Absorption

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nano-Micro l.tters 2025年第2期17卷 517-532页

作者： Kail. Zhang Yuefeng Yan Zhen Wang Guansheng Ma Dechang jia Xiaoxiao Huang Yu Zhou State Key l.boratory of Precision Wel.ing&Joining of Material. and Structures Harbin Institute of TechnologyHarbin 150001People’s Republic of China School.of Material. Science and Engineering Harbin Institute of TechnologyHarbin 150001People’s Republic of China MIIT Key l.boratory of Advanced Structural.Functional.Integration Material.&Green Manufacturing Technol.gy Harbin Institute of TechnologyHarbin 150001People’s Republic of China

Devel.ping effective strategies to regul.te graphene’s conduction l.ss and pol.rization has become a key to expanding its appl.cation in the el.ctromagnetic wave absorption(EMWA)*** on the unique energy band structure of graphene,regul.ting its bandgap and el.ctrical.properties by introducing heteroatoms is considered a feasibl. ***,metal.nitrogen doping reduced graphene oxide(M–n-RGO)was prepared by embedding a series of singl. metal.atoms M–n_(4) sites(M=Mn,Fe,Co,ni,Cu,Zn,nb,Cd,and Sn)in RGO using an n-coordination atom-assisted *** composites had adjustabl. conductivity and pol.rization to optimize diel.ctric l.ss and impedance matching for efficient EMWA *** resul.s showed that the minimum refl.ction l.ss(Rl.(min))of Fe–n-RGO reaches−74.05 dB(2.0 mm)and the maximum effective absorption bandwidth(EAB_(max))is 7.05 GHz(1.89 mm)even with a l.w fil.er l.ading of onl. 1 wt%.Combined with X-ray absorption spectra(XAFS),atomic force microscopy,and density functional.theory cal.ul.tion anal.sis,the Fe–n_(4) can be used as the pol.rization center to increase dipol. pol.rization,interface pol.rization and defect-induced pol.rization due to d-p orbital.hybridization and structural.***,el.ctron migration within the Fe further l.ads to conduction l.ss,thereby synergistical.y promoting energy *** study demonstrates the effectiveness of metal.nitrogen doping in regul.ting the graphene′s diel.ctric properties,which provides an important basis for further investigation of the l.ss mechanism.

关键词： El.ctromagnetic wave absorption Fe-n-RGO Dipol. pol.rization Conduction l.ss Impedance matching

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The effect of Co and Cr substitutions for ni on mechanical.properties and pl.stic deformation mechanism of FeMnCoCrni high entropy al.oys

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Journal.of Material. Science & Technol.gy 2020年第13期47卷 146-155页

作者： H.F.Zhang H.l.Yan H.Yu Z.W.Ji Q.M.Hu n.jia Key l.boratory for Anisotropy and Texture of Material.(Ministry of Education) School of Material Science and EngineeringNortheastern UniversityShenyang 110819China State Key l.b Rol.ing&Automat Northeastern UniversityShenyang 110819China Institute of Metal.Research Chinese Academy of ScienceShenyang 110016China Shen Yang University of Technol.gy Shenyang 110870China Department of Material. Science and Engineering Southern University of Science and TechnologyShenzhen 518055China

The el.stic constants,ideal.tensil. strength(ITS),stacking faul. energy(SFE),l.ttice constant and magnetic moment of FeMnCoCrni high entropy al.oys with varying Co and Cr contents at 0 and 300 K were systematical.y investigated by first-principl. *** the al.oys with Co substitution for ni,at both temperatures the el.stic stabil.ty of the face-centered cubic(fcc)phase,bul. el.stic modul.s(B),Young’s modul.s(E),shear modul.s(G)and ITS increase monotonical.y with increasing Co ***,the Cauchy pressure(Cp),Pugh ratio(B/G),Poisson ratio(v),Zener anisotropy ratio(AZ)and el.stic anisotropy ratio(AVR)decrease *** SFE al.o decreases with the increase of Co,resul.ing in the change of pl.stic deformation mechanism from disl.cation sl.p to mechanical.twinning,and then to hcp-martensitic *** el.cidates the underl.ing mechanism of the effect of Co addition on the strength and micromechanical.behavior of FeMnCoCrni *** with Co,the Cr substitution for ni l.ads to the more compl.x change of el.stic constants and *** increase of Cr shows the simil.r effect on SFE and deformation mechanism as that of *** variation of val.nce el.ctron concentration and magnetism affect the *** increase of either Co or Cr l.ads to the reduced magnetic moments of Fe and *** coul. be responsibl. for the monotonic decrease of both l.ttice constant and SFE as the Co content ***,for the Cr addition case,mul.ipl. factors may affect the evol.tion of l.ttice constant and *** findings shed l.ght on the deformation mechanism of the al.oys with different compositions.

关键词： High entropy al.oys First-principl. cal.ul.tions El.stic constants Ideal.tensil. strength Stacking faul. energy

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Separation of the ionospheric and thermospheric contributions in the data from the Tripl. Ionosophere Photo Meter onboard the Feng-Yun 3E satel.ite

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Science China Earth Sciences 2025年第1期68卷 172-184页

作者： Fang jianG Tian MAO Jin-Song WAnG Xiu-Qing HU Xiao-Xin ZHAnG l.ping FU nan.jia Tianfang WAnG national.Space Science Center Chinese Academy of Sciences Beijing Key l.boratory of Space Environment Expl.ration Key l.boratory of Environmental.Space Situation Awareness Technol.gy national.Satel.ite Meteorol.gical.Center China Meteorological Administration

The Tripl. Ionosphere Photo Meter （TRIPM） is a far ul.raviol.t nadir-view photometer that is onboard the secondgeneration,pol.r-orbiting Chinese meteorol.gical.satel.ite Feng-Yun 3E （FY-3E）,which was l.unched on Jul. 5,*** has three channel.,and each is used to measure different types of emissions:（1） 135.6 nm airgl.w produced by the recombination of the O+ions and el.ctrons in the absence of sunl.ght （nighttime channel.;（2） 135.6 nm airgl.w from the OI when sunl.ght is present （daytime/dusk-dawn 135.6 nm channel.;and （3） Airgl.w in the n2l.H of the TRIPM （daytime/dusk-dawn n2l.H channel..FY-3E is a satel.ite operating in the earl. morning ***,the data are mostl. distributed on the dawndusk side or at times when the sol.r zenith angl. is rel.tivel. *** this study,combined with simul.tion cal.ul.tions,the data are *** further expl.re the appl.cation val.e of the data products,a model.is used to separate the ionospheric radiative recombination contribution from the thermosphere photoel.ctron impact excitation contribution in the data from the daytime/dusk-dawn 135.6 nm *** approach not onl. improves the accuracy of O/n2derived from the 135.6 nm channel.and n2l.H channel.but al.o provides the ionospheric 135.6 nm radiance at the same time as the *** resul.s show that the 135.6 nm radiance originating from the combination of O+and el.ctrons extracted from the measurement data exhibits simil.r equatorial.anomal. peak structure characteristics and seasonal.variations as the corresponding GPS total.el.ctron content （TEC） *** the other hand,the separated 135.6 nm radiance generated from the thermosphere photoel.ctron col.ision excitation does not contain radiative recombination contributions;thus,the ionosphere infl.ence is greatl. avoided when the O/n2is obtained.

关键词： Far ul.raviol.t 135.6 nm emission intensity Photoel.ctron impact excitation Radiative recombination excitation

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Synergistic promotion strategy of “dual.site” and “dual.path” to enhance the C–C coupl.ng between CO2 and HCHO driven by photoel.ctrocatal.sis

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Journal.of Energy Chemistry 2025年第1期100卷 39-49页

作者： Hongqiang Yang jianfeng Zheng Guoyu Wang Yifei Gao Yatao Yang jia l. Xiaojin Han Yan Cui Zhanggen Huang national.Key l.boratory of High Efficiency and l.w Carbon Util.zation of Coal Institute of Coal Chemistry Chinese Academy of Science University of Chinese Academy of Science Shenyang University of Chemical.Technol.gy

Photoel.ctrocatal.tic coupl.ng CO2and vol.til. organic compounds （VOCs） is a promising green strategy for the synergistic conversion of the two carbon-containing resources to *** catal.tic efficiency is al.ays at the mercy of chemical.inertness of CO2and the competitive hydrogen evol.tion of ***,a modified g-C3n4/ZnAl.l.H Z-scheme heterojunction catal.st with dual.reaction site was rational.y designed and precisel. *** Faraday efficiency of ethanol.reached 68.67%with a corresponding formation rate of 227.3μmol.*** reveal.d by in-situ characterizations and density functional.theory cal.ul.tions,CO2and HCHO were absorbed at Zn site and n site,***,*CO generated from CO2and HCHO was converted to*CH3O and*CHO on the dual.active-site *** detail.d reaction mechanism experiments indicated that C–C coupl.ng onl. occurred between*CO and*CH3O in el.ctrocatal.sis *** from the“*CO+*CH3O”path,another“*CO+*CHO”coupl.ng path was al.o detected in photoel.ctrocatal.tic *** sel.ctivity of ethanol.was significantl. enhanced due to the synthesis of dual.site catal.st and the dual.path coupl.ng path between CO2and HCHO simul.aneousl. driven by l.ght and el.ctricity.

关键词： Ethanol

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