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Realization of Topology-Controlled Photonic Cavities in a Valley Photonic Crystal

Physical Review Letters 2025年第3期134卷 033803-033803页

作者： Bei Yan Baoliang Liao Fulong Shi Xiang Xi Yuan Cao Kexin Xiang Yan Meng Linyun Yang Zhenxiao Zhu State Key Laboratory of Optical Fiber and Cable Manufacturing Technology Department of Electronic and Electrical Engineering Guangdong Key Laboratory of Integrated Optoelectronics Intellisense Southern University of Science and Technology Shenzhen 518055 China Hubei Province Key Laboratory of Systems Science in Metallurgical Process and College of Science Wuhan University of Science and Technology Wuhan 430081 China Guangdong Province Key Laboratory of Optical Fiber Sensing and Communications Institute of Photonics Technology Jinan University Guangzhou 510632 China School of Physics & State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-sen University Guangzhou 510275 China School of Electrical Engineering and Intelligentization Dongguan University of Technology Dongguan 523808 China College of Aerospace Engineering Chongqing University Chongqing 400030 China

We report the experimental realization of a new type of topology-controlled photonic cavities in valley photonic crystals by adopting judiciously oriented mirrors to localize the valley-polarized edge states along their propagation path. By using microwave frequency- and time-domain measurements, we directly observe the strong confinement of electromagnetic energy at the mirror surface due to the extended time delay required for the valley index flipping. Moreover, we experimentally demonstrate that both the degree of energy localization and quality factors of the topology-controlled photonic cavities are determined by the valley-flipping time which is controlled by the topology of the mirror. These results extend and complement the current design paradigm of topological photonic cavities.

关键词： Mirrors

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

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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?

Advanced Membranes

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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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Zwitterionic comb-like lipid polymers encapsulating linalool for increasing the fragrance retention time

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Chinese Chemical Letters 2021年第1期32卷 573-576页

作者： Tianlu Zhang Zhiguo Lu Xiangyu Wang Jie Shen Jianze Wang Yunwei Niu Zuobing Xiao Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Shanghai Research Institute of Fragrance and Flavor Industry Shanghai 200232China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 200233China

Fragrances are widely used in cosmetics,apparel and ***,the rapid evaporation of the aro ma shortens the useful life of the aromatic ***,improving the fragrance retention time of aromatic products and prolonging the service life of aromatic products are the key scientific problems that need to be solved in current aromatic *** this study,zwitterionic comb-like lipid polymers were synthesized to encapsulate the fragrance molecule *** results showed that the zwitterionic comb lipid molecules were capable of encapsulating more linalool than linear lipid *** the same time,the zwitterionic comb-like lipid molecules also limited the slow release rate of the aroma,thereby increasing the fragrance retention time of the nano-fragrance.

关键词： Linalool Zwitterionic comb-like lipid polymers Nano-fragrance Fragrance retention time Slow release

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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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Inside-out assembly of viral antigens for the enhanced vaccination

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Signal Transduction and Targeted Therapy 2023年第6期8卷 3144-3157页

作者： Fengqiang Cao Sha Peng Yaling An Kun Xu Tianyi Zheng Lianpan Dai Kenji Ogino To Ngai Yufei Xia Guanghui Ma State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190PR China Graduate School of Bio-Applications and Systems Engineering Tokyo University of Agriculture and Technology2-24-16 NakachoKoganeiTokyo184-8588Japan Institute of Global Innovation Research Tokyo University of Agriculture and Technology2-24-16 NakachoKoganei-shiTokyo184-8588Japan CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing100101PR China Savaid Medical School University of Chinese Academy of SciencesBeijingPR China Key Laboratory of Tropical Translational Medicine of Ministry of Education School of Tropical Medicine and Laboratory MedicineThe First Affiliated HospitalHainan Medical UniversityHainan571199PR China Zhejiang University School of Medicine Hangzhou310058PR China Department of Chemistry The Chinese University of Hong KongShatinN.T.Hong Kong999077PR China University of Chinese Academy of Sciences Beijing100049PR China Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190PR China

Current attempts in vaccine delivery systems concentrate on replicating the natural dissemination of live pathogens,but neglect that pathogens evolve to evade the immune system rather than to provoke *** the case of enveloped RNA viruses,it is the natural dissemination of nucleocapsid protein(NP,core antigen)and surface antigen that delays NP exposure to immune ***,we report a multi-layered aluminum hydroxide-stabilized emulsion(MASE)to dictate the delivery sequence of the *** this manner,the receptor-binding domain(RBD,surface antigen)of the spike protein was trapped inside the nanocavity,while NP was absorbed on the outside of the droplets,enabling the burst release of NP before *** with the natural packaging strategy,the inside-out strategy induced potent type I interferon-mediated innate immune responses and triggered an immune-potentiated environment in advance,which subsequently boosted CD40+DC activations and the engagement of the lymph *** both H1N1 influenza and SARS-CoV-2 vaccines,rMASE significantly increased antigen-specific antibody secretion,memory T cell engagement,and Th1-biased immune response,which diminished viral loads after lethal *** simply reversing the delivery sequence of the surface antigen and core antigen,the inside-out strategy may offer major implications for enhanced vaccinations against the enveloped RNA virus.

关键词： vaccination outside evolve

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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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Investigation of the Adsorption Performance and Mechanism of Multi-Source Mineral Composite Calcination Materials on Heavy Metal Ions

SSRN

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SSRN 2024年

作者： Yao, Yisong Feng, Yali Li, Haoran Liu, Mengyao Cui, Yufeng Xu, Chenglong Li, Yunhao Xue, Zhonghua Wang, Jianwei School of Civil and Resource Engineering University of Science and Technology Beijing Beijing100083 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100049 China

To address the challenges of plume generation and the release of heavy metal ions caused by deep-sea mining operations, this study utilized multi-source minerals, including steel slag (SS), oceanic manganese nodules (OMN), attapulgite (AT), and sawdust (SD), to fabricate a multi-source mineral composite calcination material (MMCCM) through a sintering process. This MMCCM was then employed as an adsorbent in preliminary experiments exploring the adsorption of heavy metal ions. The results indicated that MMCCM had adsorption capacities of 46.99 (Cu2+), 40.49 (Co2+), and 38.65 mg/g (Ni2+). In a single-component system, the isotherm adsorption of Cu2+ adhered to both Langmuir and Freundlich models, adequately describing the adsorption behavior of Cu2+, while the Freundlich model was more applicable in competitive systems. The adsorption of Co2+ and Ni2+ consistently aligned with the Langmuir model across all systems. The adsorptive behavior of the three ions conformed to pseudo-second-order kinetics, with the adsorption dynamics indicating that chemical adsorption was the predominant mechanism and intraparticle diffusion was the principal rate-limiting step. Thermodynamic analyses of the adsorption process confirmed its spontaneous nature. Characterization techniques such as the Brunauer–Emmett–Teller (BET) method for surface area, thermogravimetric-differential thermal analysis (TG-DTG), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDS), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS) elucidated that surface physical adsorption, ion exchange, complexation with functional groups, electrostatic attraction, and co-precipitation, which were the predominant adsorption mechanisms for MMCCM. Evaluations of regenerability, economy, security, and suitability demonstrated that MMCCM is an eco-friendly adsorbent, which provides substantial experimental materials and data su

关键词： Adsorption

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Selective lithium leaching from spent Li(MnyFe1-y)PO4 cathodes with gradient in-situ-oxidation of Na2S2O8

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Particuology 2025年 102卷 207-215页

作者： Lei, Hao Wang, Wei Jiang, Longjin Chang, Zhidong Anwar, Hira Dong, Bin Gao, Dekun Chen, Zhiyi Liu, Mingming School of Chemistry and Biological Engineering University of Science and Technology Beijing Beijing100083 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Anhui Chaoyue Environmental Protection Technology Co. Ltd Chuzhou239060 China Anhui Huihong Technology Co. Ltd Chuzhou239060 China

The recovery of lithium from spent lithium iron manganese phosphate batteries is crucial for the efficient utilization of lithium resources and for alleviating supply constraints. This study proposes a selective lithium recovery method using a Na2S2O8 leaching system for spent lithium iron manganese phosphate battery cathodes. Na2S2O8 was selected based on an analysis of the thermodynamic data of each component in the leaching system. Essential leaching parameters, including H2SO4 dosage, Na2S2O8 dosage, leaching time, and leaching temperature were systematically investigated. The results showed that under the optimized experimental conditions, the lithium leaching rate reached 97.4 % with a selectivity of 96.24 %. The recovered Li2CO3 product meets battery grade requirements. © 2025

关键词： Leaching

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