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Mechanical,corrosion and magnetic behavior of a CoFeMn_(1.2)NiGa_(0.8) high entropy alloy

Journal of Materials Science & Technology 2021年第14期73卷 139-144页

作者： Xiaoming Sun Lingzhong Du Hao Lan Jingyi Cui Liang Wang Runguang Li Zhiang Liu Junpeng Liu Weigang Zhang State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing100190China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing100081China X-ray Science Division Argonne National LaboratoryArgonneIllinois60439USA Experimental Teaching and Equipment Management Center Qufu Normal UniversityShandong273165China State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of SciencesBeijing100190China

In this study,a magnetic high entropy alloy(HEA)of CoFeMn_(1.2)NiGa_(0.8)was designed and prepared by arc melting in order to investigate its mechanical,corrosion and magnetic *** results show that the alloy mainly possesses body-centered cubic(BCC)phase and face-centered cubic(FCC)phase.A high compressive strength of 1450 MPa,a strain of 18.5%and a relatively low yield strength of 303MPa in as-cast condition at room temperature can be achieved in the present ***-situ high-energy X-ray diffraction technique was employed to reveal the deformation mechanism of Co Fe Mn_(1.2)Ni Ga_(0.8)under uniaxial compression and the results show that the competition between BCC phase and FCC phase plays a significant role during the compressive *** corrosion behavior of Co Fe Mn_(1.2)Ni Ga_(0.8)was investigated in 3.5 wt%Na Cl solution and it turned out that the alloy possessed good corrosion *** last,the magnetic behavior of the Co Fe Mn_(1.2)Ni Ga_(0.8)alloy was studied and it can present a high saturation magnetization of 94.5 emu/g and a coercivity of 26.4 Oe at 4 *** work indicates that the present Co Fe Mn_(1.2)Ni Ga_(0.8)HEA has promising applications as future magnetic functional materials.

关键词： High entropy alloys High-energy X-ray diffraction Compressive property Corrosion resistance Magnetic behavior

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A scalable software package for time series reconstruction of remote sensing datasets on the Google Earth Engine platform

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International Journal of Digital Earth 2023年第1期16卷 988-1007页

作者： Jie Zhou Massimo Menenti Li Jia Bo Gao Feng Zhao Yilin Cui Xuqian Xiong Xuan Liu Dengchao Li Key Laboratory for Geographical Process Analysis&Simulation of Hubei Province College of Urban and Environmental SciencesCentral China Normal UniversityWuhanPeople’s Republic of China State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijingPeople’s Republic of China Faculty of Civil Engineering and Geosciences Delft University of TechnologyDelftThe Netherlands College of Resources Environment and Tourism Capital Normal UniversityBeijingPeople’s Republic of China The First Geological brigade of Hubei Geological Bureau HuangshiPeople’s Republic of China

Spatiotemporal residual noise in terrestrial earth observation products,often caused by unfavorable atmospheric conditions,impedes their broad *** users prefer to use gap-filled remote sensing products with time series reconstruction(TSR)*** currently available implementations of TSR to large-volume datasets is time-consuming and challenging for non-professional users with limited computation or storage *** study introduces a new open-source software package entitled‘HANTS-GEE’that implements a well-known and robust TSR algorithm,*** ANalysis of Time Series(HANTS),on the Google Earth Engine(GEE)platform for scalable reconstruction of terrestrial earth observation *** tasks can be conducted on user-defined spatiotemporal extents when raw datasets are available on *** to site-based and regional-based case evaluation,the new tool can effectively eliminate cloud contamination in the time series of earth observation *** with traditional PC-based HANTS implementation,the HANTS-GEE provides quite consistent reconstruction results for most terrestrial vegetated *** HANTS-GEE can provide scalable reconstruction services with accelerated processing speed and reduced internet data transmission volume,promoting algorithm usage by much broader user *** our knowledge,the software package is thefirst tool to support full-stack TSR processing for popular open-access satellite sensors on cloud platforms.

关键词： Time series reconstruction remote sensing Google Earth Engine HANTS gap-filling

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Cellulose-based separation membranes: A sustainable evolution or fleeting trend?

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Advanced Membranes 2025年 5卷

作者： Qi, Fuju Qi, Benkun Cui, Zhaoliang Chen, Xiangrong Wan, Yinhua Luo, Jianquan State Key Laboratory of Biopharmaceutical Preparation and Delivery Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100190 China NJTECH University Suzhou Future Membrane Technology Innovation Center Suzhou215333 China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Nanjing211816 China Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341119 China

Cellulose-based separation membranes are promising for sustainable membrane technology due to their renewable raw materials and biodegradability. Their excellent resistance to fouling, minimal protein adsorption, and high biocompatibility render them effective in bio-separation applications. Nevertheless, the development of truly sustainable cellulose membranes for engineering purposes remains challenging. This review begins by outlining the raw cellulosic materials employed in membrane fabrication, followed by a systematic summary of the fabrication techniques for cellulose-based membranes derived from various raw materials, alongside their progress in bio-separation. The sustainability of cellulose-based separation membranes is assessed within a life cycle framework that considers raw materials, membrane fabrication, application scenarios and end-of life, with particular emphasis on key barriers to achieving engineering sustainability. Finally, this review proposes targeted optimization strategies to tackle these limitations, offering a clear roadmap for future research aimed at transforming cellulose-based membranes from promising laboratory innovations into robust, scalable engineering solutions. © 2025 The Authors

关键词： Biocompatibility

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One-Pot Three-Dimensional Printing Robust Self-Supporting MnO_(x)/Cu-SSZ-13 Zeolite Monolithic Catalysts for NH_(3)-SCR

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CCS Chemistry 2022年第5期4卷 1708-1719页

作者： Yingzhen Wei Mengyang Chen Xiaoyu Ren Qifei Wang Jinfeng Han Wenzheng Wu Xiangguang Yang Shuang Wang Jihong Yu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012 International Center of Future Science Jilin UniversityChangchun 130012 School of Mechanical and Aerospace Engineering Jilin UniversityChangchun 130025 State Key Laboratory of Rare Earth Resource Utilization Jilin Province Key Laboratory of Green Chemistry and ProcessChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022 Henan Province Function-Oriented Porous Materials Key Laboratory College of Chemistry and Chemical EngineeringLuoyang Normal UniversityLuoyang 471934

Honeycomb cordierite coated with Cu-SSZ-13 zeolite is widely used for the selective catalytic reduction of NO_(x) with NH_(3)(NH_(3)-SCR)to reduce pollutants from vehicle ***,conventional honeycomb catalysts fabricated via coating techniques are limited by low zeolite loadings,loss of the deposited zeolites,and complicated preparation ***,a facile,one-step three-dimensional(3D)printing strategy is developed to construct MnO_(x)/Cu-SSZ-13 monolithic catalysts with excellent catalytic performance for NH_(3)-***-containing halloysite nanotubes(Fe-HNTs)are introduced as printing ink additives to ensure mechanical stability and modulate the NH_(3)-SCR performance of monolithic catalysts in high temperature *** situ incorporation of Mn into the Cu-SSZ-13 zeolite monoliths during the 3D printing process boosts the mechanical strength of the monolithic structures from 2.54 MPa to 4.33 MPa as well as broadens the temperature window(165-550℃)of the catalysts for NH_(3)-SCR with NO_(x) conversion of above 80%.Such robust multicomponent-integrated 3D-printed selfsupporting catalysts not only possess high zeolite loading and excellent catalytic activity,but also avoid complicated manufacturing processes,which contrasts with conventional honeycomb catalysts fabricated by extrusion coupled with coating.

关键词： 3D printing metal-doped Cu-SSZ-13 zeolites NH_(3)-SCR monolithic catalysts mechanical strength

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Modulation of the cobalt species state on zincosilicate to maximize propane dehydrogenation to propylene

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Chinese Journal of Catalysis 2024年第11期66卷 168-180页

作者： Hao Liu Bingxian Chu Tianxiang Chen Jie Zhou Lihui Dong Tsz Woon Benedict Lo Bin Li Xiaohui He Hongbing Ji Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education Fine Chemical Industry Research InstituteSchool of ChemistryIGCMESun Yat-sen UniversityGuangzhou 510275GuangdongChina State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology Institute of Green Petroleum Processing and Light Hydrocarbon ConversionCollege of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014ZhejiangChina Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology School of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004GuangxiChina State Key Laboratory of Chemical Biology and Drug Discovery Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic UniversityHunghomHong KongChina Guangdong Technology Research Center for Synthesis and Separation of Thermosensitive Chemicals Guangzhou 510275GuangdongChina

Dispersing metals from nanoparticles into clusters or single atoms often exhibits unique properties such as the inhibition of structure-sensitive side ***,we reported the use of ion exchange(IE)methods and direct hydrogen reduction to achieve high dispersion of Co species on *** obtained 2Co/Zn-4-IE catalyst achieved an initial propane conversion of 41.4%at a temperature of 550℃in a 25%propane and 75%nitrogen atmosphere for propane *** of the presence of Co species within specific rings(alpha-α,beta-βand delta-δ)was obtained by aberration-corrected scanning transmission electron microscopy.A series of Fourier transform infrared spectra confirmed the anchoring of Co by specific hydroxyl groups in zincosilicate and the specific coordination environment of Co and its presence in the rings essentially as a single *** framework Zn for the modulation of the microenvironment and the presence of Co species as Lewis acid active sites(Co-O4)was also supported by density functional theory calculations.

关键词： Zincosilicate zeolite Anchoring effect Microenvironment modification Isolated Co site Propane dehydrogenation

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Supramoleuclar Peptide Condensates Formed through Liquid-Liquid Phase Separation

Supramoleuclar Peptide Condensates Formed through Liquid-Liq...

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2021年全国生物相分离和相变学术研讨会

作者： Xuehai Yan Chengqian Yuan Xiaokang Ren State Key Laboratory of Biochemical Engineering 2 Center for MesoscienceInstitute of Process EngineeringChinese Academy of Sciences

Peptide and protein self-assembly is of critical importance as a tool to understand the natural life phenomenon such as liquid-liquid phase separation（LLPS） in *** a number of studies have demonstrated the formation of biomolecular condensates through LLPS in cells,the fundamental molecular events underpinning the early stages of their assembly and subsequent growth have remained challenging to ***,we will present how simple peptides can be used as a model to investigate the LLPS events in supramoleuclar *** discover that LLPS is a fundamental step leading to nucleation of supramolecular nanostructures,and the metastable droplets（condensates） can be controlled to direct the final assembled supramolecular structures including nanoparticles,nanofibrils and nanotubes as well as crystals so *** peptide-rich liquid droplets promote the formation of nucleation sites,allowing the emergence of thermodynamically favorable nanostructures following Ostwald’s step *** is found that the LLPS may be triggered mainly by an entropy effect associated with the debonding between peptides and solvent molecules（desolvation）.These results provide insights into the fundamental role of metastable liquid phases（condensates） in supramolecular self-assembly and importantly offer useful reference for comprehending the LLSP events in the complex cells.

关键词： Peptide Metastable liquid droplets Condensates Liquid-liquid phase separation Self-assembly

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Critical Metals Ga,Ge and In in the Global Pb-Zn Deposits:Current Understanding,Challenges and Perspectives

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Journal of Earth Science 2023年第4期34卷 1308-1311页

作者： Yi Zheng Peng-Peng Yu Zhan-Ke Li Suo-Fei Xiong Ling-Li Zhou Jia-Xi Zhou ChangMing Wang Yu-Miao Meng Yu Zhang Ye-Jian Wang Jing Xu Yue Wu Lan-Xuan Guo Taiping Zhao Guangdong Provincial Key Lab of Geological Process and Mineral Resources Survey School of Earth Sciences and Geological EngineeringSun Yat-sen UniversityGuangzhou 510275China State Key Laboratory of Geological Processes and Mineral Resources School of Earth ResourcesChina University of GeosciencesWuhan 430074China Collaborative Innovation Center for Exploration of Strategic Mineral Resources China University of GeosciencesWuhan 430074China Department of Earth Sciences Vrije Universiteit Amsterdam de Boelelaan 1085Amsterdam 1081HVNetherlands Key Laboratory of Critical Minerals Metallogeny in Universities of Yunnan Province School of Earth SciencesYunnan UniversityKunming 650500China State Key Laboratory of Geological Processes and Mineral Resources School of Earth Sciences and ResourcesChina University of GeosciencesBeijing 100083China State Key Laboratory of Ore Deposit Geochemistry Institute of GeochemistryChinese Academy of ScienceGuiyang 550081China Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring School of Geosciences and Info-PhysicsCentral South UniversityChangsha 410083China Key Laboratory of Submarine Geosciences Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Zijin School of Geology and Mining Fuzhou UniversityFuzhou 350108China Key Laboratory of Exploration Technologies for Oil and Gas Resources Key Laboratory of Petroleum Geochemistry and EnvironmentYangtze UniversityWuhan 430100China Zhongjin Lingnan Nonfemetal Co. LtdShenzhen 518000China Key Laboratory of Mineralogy and Metallogeny Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China

BACKGROUND A spectrum of strategically critical metals, such as gallium(Ga), germanium(Ge) and indium(In), with promising applications in green and high-tech fields, are produced as byproducts of zinc ores in a variet... 详细信息

关键词： magmatic hydrothermal porphyry

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Effects of rough walls on sheared annular centrifugal Rayleigh-Bénard convection

arXiv

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arXiv 2025年

作者： Xu, Fan Zhong, Jun Su, Jinghong Zhao, Bidan He, Yurong Sun, Chao Wang, Junwu School of Energy Science and Engineering Harbin Institute of Technology Harbin150001 China State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China New Cornerstone Science Laboratory Center for Combustion Energy Key Laboratory for Thermal Science and Power Engineering of Ministry of Education Department of Energy and Power Engineering Tsinghua University Beijing100084 China College of Mechanical and Transportation Engineering China University of Petroleum Beijing102249 China Department of Engineering Mechanics School of Aerospace Engineering Tsinghua University Beijing100084 China

In this study, we investigate the coupling effects of roughness and wall shear in an annular centrifugal Rayleigh-Bénard convection (ACRBC) system, where two cylinders rotate with different angular velocities. Two-dimensional direct numerical simulations are conducted within a Rayleigh number range of 106 ≤ Ra ≤ 108, and the non-dimensional angular velocity difference (Ω), representing wall shear, varied from 0 to 1. The Prandtl number is fixed at Pr = 4.3, the inverse Rossby number at Ro−1 = 20, and the radius ratio at η = 0.5. The interaction between wall shear and roughness leads to distinct heat transfer behavior in different regimes. In the buoyancy-dominant regime, an increase in the non-dimensional angular velocity difference (Ω) significantly enhances heat transfer. However, as Ω continues to rise, a sharp reduction in heat transfer is observed in the transitional regime. Beyond a critical value of Ω, the flow enters a shear-dominant regime, where heat transfer remains unchanged despite further increases in Ω. The underlying mechanisms behind these distinct heat transfer behaviors are then elucidated. The enhancement of heat transport in the buoyancy-dominant regime is attributed to the introduction of external shear by the rotating rough walls, which reinforces convection and secondary flows within the cavities. Additionally, these secondary flows improve the efficiency of transporting the trapped hot and cold fluids outside the cavities, further enhancing heat transfer. However, in the transitional regime, the number of convection rolls rapidly decreases with increasing shear, eventually reaching a point where sustaining them becomes challenging. Consequently, a sharp reduction in heat transfer occurs. In the shear-dominant regime, heat transfer is primarily governed by diffusion, leading to a constant heat transport rate. Copyright © 2025, The Authors. All rights reserved.

关键词： Buoyancy

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PdSe_(2)/MoSe_(2) vertical heterojunction for self-powered photodetector with high performance

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Nano Research 2022年第3期15卷 2489-2496页

作者： Jiahong Zhong Biao Wu Yassine MADOUNE Yunpeng Wang Zongwen Liu Yanping Liu School of Physics and Electronics Hunan Key Laboratory for Super-microstructure and Ultrafast ProcessCentral South UniversityChangsha 410083China State Key Laboratory of High-Performance Complex Manufacturing Central South UniversityChangsha 410083China School of Chemical and Biomolecular Engineering The University of SydneyNSW 2006Australia The University of Sydney Nano Institute The University of SydneyNSW 2006Australia Shenzhen Research Institute of Central South University A510aVirtual University BuildingSouthern DistrictHigh-tech Industrial ParkYuehai StreetNanshan DistrictShenzhen 518057China

Van der Waals’two-dimensional(2D)material heterostructure engineering offers an effective strategy for the design of multifunctional and high-performance optoelectronic ***,2D heterostructure photodetectors with a photoconductive effect tend to suffer from high driving source-drain voltages and significant dark noise ***,a self-powered photodetector with high performance was fabricated based on vertically stacked graphene/MoSe_(2)/PdSe_(2)/graphene heterojunctions through a dry transfer *** fabricated device displays current rectification characteristics in darkness(on/off ratio>10^(3))and superior photovoltaic behaviors under *** addition,benefitting from the strong built-in field,the Gr/PdSe_(2)/MoSe_(2)/Gr heterojunction photodetector is able to respond to a broad spectrum from visible to near-infrared(NIR)with a remarkable responsivity of 651 mA·W^(−1),a high specific detectivity of 5.29×10^(11) Jones and a fast response speed of 41.7/62.5μ***,an enhanced responsivity of 1.16 A·W^(−1) has been obtained by a reverse voltage(−1 V)and further evaluation on image recognition has also demonstrated the great application potential of the Gr/MoSe_(2)/PdSe_(2)/Gr heterojunction *** findings are expected to bring new opportunities for the development of highly sensitive,high-speed and energy-efficient photodetectors for comprehensive applications.

关键词： heterostructure MoSe_(2) PdSe_(2) self-powered photodetector high performance

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Exploration and functionalization of M1-macrophage extracellular vesicles for effective accumulation in glioblastoma and strong synergistic therapeutic effects

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Signal Transduction and Targeted Therapy 2022年第4期7卷 1271-1286页

作者： Xiaojun Wang Hui Ding Zongyang Li Yaonan Peng Hui Tan Changlong Wang Guodong Huang Weiping Li Guanghui Ma Wei Wei Shenzhen Key Laboratory of Neurosurgery Department of NeurosurgeryShenzhen Second People’s HospitalShenzhen University 1st Affiliated HospitalGuangdong 518035P.R.China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China Department of Ophthalmology Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020P.R.China Department of Otolaryngology and Institute of Translational Medicine Shenzhen Second People’s Hospitalthe First Affiliated Hospital of Shenzhen University Health Science CenterShenzhenGuangdong 518110P.R.China Department of Neurosurgery Jinling HospitalJiangsuNanjing 210000P.R.China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049P.R.China

Glioblastoma multiforme(GBM)is a highly aggressive brain tumor with an extremely low survival *** and effective approaches for treatment are therefore urgently ***,we successfully developed M1-like macrophage-derived extracellular vesicles(M1EVs)that overcome multiple challenges via guidance from two macrophage-related observations in clinical specimens from GBM patients:enrichment of M2 macrophages in GBM;and origination of a majority of infiltrating macrophage from peripheral *** maximize the synergistic effect,we further functionalized the membranes of M1EVs with two hydrophobic agents(the chemical excitation source CPPO(C)and the photosensitizer Ce6(C))and loaded the hydrophilic hypoxiaactivated prodrug AQ4N(A)into the inner core of the *** intravenous injection,the inherent nature of M1-derived extracellular vesicles CCA-M1EVs allowed for blood-brain barrier penetration,and modulated the immunosuppressive tumor microenvironment via M2-to-M1 polarization,which increased hydrogen peroxide(H_(2)O_(2))***,the reaction between H_(2)O_(2) and CPPO produced chemical energy,which could be used for Ce6 activation to generate large amounts of reactive oxygen species to achieve chemiexcited photodynamic therapy(CDT).As this reaction consumed oxygen,the aggravation of tumor hypoxia also led to the conversion of non-toxic AQ4N into toxic AQ4 for ***,CCA-M1EVs achieved synergistic immunomodulation,CDT,and hypoxia-activated chemotherapy in GBM to exert a potent therapeutic ***,we demonstrated the excellent effect of CCA-M1EVs against GBM in cell-derived xenograft and patient-derived xenograft models,underscoring the strong potential of our highly flexible M1EVs system to support multi-modal therapies for difficult-to-treat GBM.

关键词： therapeutic chemotherapy synergistic

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