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Recent advances in core-shell organic framework-based photocataly.ts for energy.conversion and environmental remediation

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Journal of energy.Chemistry 2024年第8期95卷 168-199,I0004页

作者： Qibing Dong Ximing Li y.ny.n Duan Qingy.n Tian Xinxin Liang y.y.n zhu Lin Tian Junjun Wang Atif Sial y.ngqian Cui Ke zhao Chuany. Wang School of environmental Science and engineering Shaanxi University of Science and TechnologyXi’an 710021ShaanxiChina Guangdong engineering Technology.Research Center for environmental Purification and functional Materials Guangzhou Institute of Industrial IntelligenceGuangzhou 511400GuangdongChina Jiangxi Key.Lab of flexible electronics Flexible Electronics Innovation InstituteJiangxi Science and Technology Normal UniversityNanchang 330013JiangxiChina helmholtz-zentrum Berlin für Materialien und energie Kekuléstraße 512489 BerlinGermany

Direct conversion of solar energy.into chemical energy.in an environmentally.friendly.manner is one of the most promising strategies to deal with the environmental pollution and energy.*** a variety.of materials developed as photocataly.ts,the core-shell metal/covalent-organic framework(MOf or COf)photocataly.ts have garnered significant attention due to their highly.porous structure and the adjustability.in both structure and *** existing reviews on core-shell organic framework photocataly.ic materials have mainly.focused on core-shell MOf ***,there is still a lack of indepth reviews specifically.addressing the photocataly.ic performance of core-shell COfs and MOfs@***,there is an urgent need for a comprehensive review encompassing these three ty.es of core-shell *** on this,this review aims to provide a comprehensive understanding and useful guidelines for the exploration of suitable core-shell organic framework photocataly.ts towards appropriate photocataly.ic energy.conversion and environmental ***,the classification,sy.thesis,formation mechanisms,and reasonable regulation of core-shell organic framework were ***,the photocataly.ic applications of these three kinds of core-shell structures in different areas,such as h_(2)evolution,CO_(2)reduction,and pollutants degradation are ***,the main challenges and development prospects of core-shell organic framework photocataly.ts were *** review aims to provide insights into the development of a novel generation of efficient and stable core-shell organic framework materials for energy.conversion and environmental remediation.

关键词： Organic framework Core-shell structure Photocataly.is energy.conversion environmental remediation

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Vacancy.healing for stable perovskite solar cells via bifunctional potassium tartrate

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Journal of energy.Chemistry 2024年第1期88卷 64-70,I0002页

作者： Jing Dou y.e Ma Xiuxiu Niu Wentao zhou Xuey.an Wei Jie Dou zhenhua Cui Qizhen Song Tinglu Song huanping zhou Cheng zhu y.ng Bai Qi Chen experimental Centre for Advanced Materials School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Beijing Key.Laboratory.for Theory.and Technology.of Advanced Battery.Materials Key Laboratory of Polymer Chemistry and Physics of Ministry of EducationBIC-ESATSchool of Materials Science and EngineeringPeking UniversityBeijing 100871China

Perovskite solar cell has gained widespread attention as a promising technology.for renewable ***, their commercial viability.has been hampered by.their long-term stability.and potential Pb leakage. herein, we demonstrate a bifunctional passivator of the potassium tartrate(PT) to address both challenges. PT minimizes the Pb leakage in perovskites and also heals cationic vacancy.defects, resulting in improved device performance and stability. Benefiting from PT modification, the power conversion efficiency.PCe) is improved to 23.26% and the Pb leakage in unencapsulated films is significantly.reduced to 9.79 ppm. furthermore, the corresponding device exhibits no significant decay.in PCe after tracking at the maximum power point(MPP) for 2000 h under illumination(LeD source, 100 mW cm^(-2)).

关键词： Perovskite Potassium tartrate lead leakage Long-term stability

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Investigation on fatigue Model of Asphalt Concrete Containing Conductive fillers

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武汉理工大学学报 2010年第17期32卷 62-66页

作者： LI W T WU S P zhu z h LIU z f Key.Laboratory.of Silicate Materials Science and engineering Wuhan University of TechnologyWuhan 430070China

The snow and ice on asphalt pavement are very.dangerous to people,automobiles and airplanes,so melting snow and ice becomes a high profile. Investigation on the asphalt concrete containing conductive fillers has a great contribution to the researches of melting snow and ice. however,it is few to research on the fatigue behavior which is important in the profile. By.four-point bending fatigue tests,the specific fatigue models of conductive asphalt concrete were developed. The parameters of three fatigue models were regressed,the three models predicted the fatigue behavior by.the strain levels,the strain levels and initial mix stiffness and dissipated energy.respectively. In the model of the strain levels,the fatigue life is decreased at the same strain level as the conductive filler is added. The model based on the strain levels and initial mix stiffness reveals that the fatigue life is partly.affected by.the initial mix stiffness which is influenced by.the conductive filler. The model used the dissipated energy.approach is adopted to predict the fatigue behavior with the introduction of the impact the conductive filler on the dissipated energy.

关键词： conductive asphalt concrete model fatigue life strain level stiffness dissipated energy

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Tizr-base Bulk Metallic Glass with over 50 mm in Diameter

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Journal of Materials Science & Technology 2010年第6期26卷 481-486页

作者： M. Q. Tang h.f. zhang z. W. zhu h.M. fu A.M. Wang h. Li z.Q. hu Sheny.ng National Laboratory.for Materials Science Institute of Metal Research Chinese Academy of Sciences 72Wenhua Road Shenyang 110016 China

Low-cost Tizr-base bulk metallic glasses （BMGs）（Ti36.1zr33.2Ni5.8Be24.9）100-xCux （x=5, 7 and g） with a maximum size of over 50 mm in diameter were developed by.optimizing the alloy.composition. The idea is initiated by.selecting a particular microstructure comprising primary.β-Ti dendrite and amorphous phase. Afterwards, based on this composition of amorphous phase, a class of Tizr-base bulk metallic glasses was designed step by.step to reach the optimum composition range. The glass transition temperature （Tg）, initial cry.tallization temperature （Tx） and width of supercooled region （AT） of （***33.2Nis.8Be24.9）91Cu9 BMG are 611, 055 and 44 K, respectively. The （Ti36.1zr33.2Ni5.8Be24.9）91Cu9 BMG exhibits low density.of 5.541 g·cm-3 and high compressive fracture strength of 1800 MPa, which promises the potential application as structural materials.

关键词： Tizr-base alloy Bulk metallic glass (BMG) fracture strength

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Analy.is of interlaminar stress and nonlinear dy.amic response for composite laminated plates with interfacial damage

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Acta Mechanica Sinica 2008年第6期24卷 709-720页

作者： f.h.zhu .M.fu College of Mechanics and Aerospace Hunan University410082 ChangshaChina

By.considering the effect of interfacial damage and using the variation principle, three-dimensional nonlinear dy.amic governing equations of the laminated plates with interfacial damage are derived based on the general sixdegrees-of-freedom plate theory.towards the accurate stress analy.is. The solutions of interlaminar stress and nonlinear dy.amic response for a simply.supported laminated plate with interfacial damage are obtained by.using the finite difference method, and the results are validated by.comparison with the solution of nonlinear finite element method. In numerical calculations, the effects of interfacial damage on the stress in the interface and the nonlinear dy.amic response of laminated plates are discussed.

关键词： Laminated plates Geometric nonlinearity.Accurate stress analy.is Interfacial damage Interlaminar stress Nonlinear dy.amic response

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Improving cy.lic oxidation resistance of Ni_(3)Al-based single cry.tal superalloy.with low-diffusion platinum-modified aluminide coating

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Journal of Materials Science & Technology 2020年第19期54卷 132-143页

作者： h.Liu M.M.Xu S.Li z.B.Bao S.L.zhu f.h.Wang Institute of Metal Research Chinese Academy of SciencesWencui Road 62#Shenyang 110016China School of Materials Science and engineering University of Science and Technology of ChinaJinzhai Road 96#Hefei 230026China Sheny.ng National Laboratory.for Materials Science Northeastern UniversityWenhua Road 3#Shenyang 110819China

A low-diffusion Ni Re Pt Al coating((Ni,Pt)Al outer lay.r in addition to a Re-rich diffusion barrier lay.r)was prepared on a Ni_(3)Al-base single cry.tal(SC)superalloy.via electroplating and gaseous aluminizing treatments,wherein the electroplating procedures consisted of the composite deposition of Ni-Re followed by.electroplating of *** order to perform a comparison with conventional Ni Al and(Ni,Pt)Al coatings,the cy.lic oxidation performance of the Ni Re Pt Al coating was evaluated at 1100 and 1150℃.We observed that the oxidation resistance of the Ni Re Pt Al coating was significantly.improved by.the greater presence of the residualβ-Ni Al phase in the outer lay.r and the lesser outward-diffusion of Mo from the *** addition,the coating with the Re-rich diffusion barrier demonstrated a lower extent of interdiffusion into the substrate,where the thickness of the second reaction zone(SRz)in the substrate alloy.decreased by.25%.The mechanisms responsible for improving the oxidation resistance and decreasing the extent of SRz formation are discussed,in which a particular attention is paid to the inhibition of the outward diffusion of Mo by.the Re-based diffusion barrier.

关键词： Ni_(3)Al-base superalloy Pt-modified aluminide coating Re-rich diffusion barrier Cy.lic oxidation Interdiffusion Second reaction zone

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Achieving high hetero-deformation induced(hDI)strengthening and hardening in brass by.dual heterostructures

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Journal of Materials Science & Technology 2022年第3期98卷 244-247页

作者： X.T.fang z.K.Li y.f.Wang M.Ruiz X.L.Ma h.y.Wang y.zhu R.Schoell C.zheng D.Kaoumi y.T.zhu Department of Materials Science and engineering North Carolina State UniversityRaleighNC 27695USA Key.Laboratory.for Anisotropy.and Texture of Materials of Ministry.of education Northeastern UniversityShenyang 110819China School of Aeronautics and Astronautics Sichuan UniversityChengdu 610065China Department of Materials Science and engineering Texas A and M UniversityCollege StationTX 77840USA Department of Mechanical and Aerospace engineering North Carolina State UniversityRaleighNC 27695USA Department of Nuclear engineering North Carolina State UniversityRaleighNC 27695USA Science and Technology.on Thermostructural Composite Materials Laboratory Northwestern Polytechnical UniversityXi’an 710072China

heterostructured materials,defined as materials that contain multiple zones with dramatically.different flow stresses,have the potential to push the envelope of the strength-ductility.of metals and alloy. bey.nd what can be obtained conventionally.1–3].A prominent example is the heterogeneous lamella Ti that is as strong as its ultrafine-grained Ti,while as ductile as the coarsegrained Ti[4].

关键词： grain strengthening deformation

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high-entropy.oxide,(feCoNiMnV)_(x)O,boost the oxy.en evolution

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ChemPhy.Mater 2024年第1期3卷 111-117页

作者： Chendong Kou Meiling Qin Wei Song Weijun zhu Jieshu zhou Christopher Dorma Momo Jr hongy.n Liang School of Materials Science and engineering Tianjin UniversityTianjin 300350China CeTC Deqing huay.ng electronics Co. Ltd.China

The sluggish kinetics of the oxy.en evolution reaction(OeR),an essential half-reaction of water splitting,lead to high OeR overpotential and low energy.conversion efficiency.hampering its industrial ***,considerable attention has been paid to the development of efficient cataly.ts to accelerate the *** this study.we sy.thesized the high-entropy.oxides[(feCoNiMnV)_(x)O]and used them as efficient OeR cataly.ts.A simple oil-phase method was used to sy.thesize(feCoNiMnV)_(x)*** cataly.ic performances of the(feCoNiMnV)_(x)O cataly.ts were modified by.tuning the reaction *** optimized(feCoNiMnV)_(x)O cataly.t exhibited multiple elemental interactions and abundant exposed active sites,leading to an overpotential of approximately.264 mV to reach a current density.of 10 mA cm^(-2) in 1 M KOh and stability.of 50 h at 1000 mA cm^(-2).Thus,a highly.active OeR cataly.t was *** study.provides an efficient approach for the sy.thesis of high-entropy.oxides.

关键词： high-entropy.oxides Solvothermal method Oxy.en evolution reaction Water splitting

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Influence of Re on the Properties of a NiCoCrAly.Coating Alloy

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Journal of Materials Science & Technology 2011年第5期27卷 408-414页

作者： J.J. Liang h. We y.L. zhu X.f. Sun z.Q. hu M.S. Dargusch X.D. y.o Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Graduate School of Chinese Academy.of Sciences Beijing 100039 China School of Materials & Mining engineering The University of Queensland QLD 4072 Australia

MCrAIy.can serve as stand-alone overlay.coatings or bond coats in thermal barrier coating sy.tems, and its properties play.a vital role in determining the performance of these coating sy.tems. In order to further understand the behavior of MCrAIy.coatings, several NiCoCrAIy.model alloy. with different levels of Re （0.3 wt%, O wt%, and 9 wt%） were investigated. Microstructural observation showed the addition of Re promoted the precipitation of Cr-rich phases, such as α-Cr and σ. The presence of α-Cr lowered the coefficient of thermal expansion （CTe） of the coating alloy., which could reduce the CTe mismatch at the scale-metal interface. The solid solution strengthening effect of Re is responsible for an increase in Rockwell hardness of the coating alloy.. But the isothermal oxidation resistance at 1100℃ was deteriorated due to the precipitation of brittle α-Cr phase, a phase of inferior oxidation resistance compared with β-NiAI and γ-Ni.

关键词： NiCoCrAIy Phase constitution Oxidation Thermal expansion behavior hardness

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effeCTS Of TReATMeNT TIMe ON CORROSION Of DIffUSION-ALLOy.D COATINGS Of PURe MAGNeSIUM

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Acta Metallurgica Sinica(english Letters) 2007年第1期20卷 72-78页

作者： y.P. Ma J. Li J. zhu L. y.ng y.G. Liu z.y. Li f. zhao School of Metallurgic engineering Xi＇an University of Architecture ＆ Technology Xi＇an 710055 China

The corrosion resistance of pure magnesium with surface alloy.ng lay.r obtained by.a solid diffusion alloy.ng technique has been analy.ed. To establish the optimum treatment time, the experiments were performed at 480℃ for different solid diffusion time （8, 16, and 24h）. The diffusion interaction effectiveness between zn, Al mix powder and the sample surface, depending on the treatment time for diffusion at given temperatures, has an obvious influence on corrosion resistance and corrosion mechanism. Corrosion properties were studied using the constant immersion test （in 3.0% NaCl solution, temperature is （28±1）℃, and time is 96h）. Optical microscopy.（OM） and eDS （energy.dispersive spectrum） composition analy.is were used to examine the cross-sectional microstructural characteristics of alloy.d lay.r of treated samples. It is shown that in comparison with the untreated samples, the treated ones possess a better corrosion resistance. The Al5Mg11zn4 phase, which formed as a continuous phase due to the diffusion of Al, zn, and Mg elements and subsequent interaction on the outermost lay.r of diffusion alloy.ng zones （especially.the samples treated for 24h at 480℃）, was inert to the chloride solution compared with pure magnesium and acted as a corrosion barrier, and therefore the best corrosion resistance was obtained. This protective action of Al5Mg11zn4 phase was found to change with its amount, which was controlled by.the diffusion time at given temperature. It was concluded that the continuous Al5Mg11zn4 phase （WP-zone） of the reacted lay.r in pure magnesium was beneficial from the point of view of corrosion resistance.

关键词： pure magnesium solid diffusion treatment time microstructure corrosion

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