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Built defects of homogeneous junction to enhance the lithium storage capacity of niobium pentoxide materials

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Journal of Energy Chemistry 2024年第5期92卷 730-737页

作者： Huibin Ding Yang Luo zihan song Cong Chen Kai Feng Xiaofei Yang Hongzhang Zhang Xianfeng Li Division of Energy Storage National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China College of Chemistry&Engineering Yantai UniversityYantai 264005ShandongChina

Niobium pentoxide(Nb_(2)O_(5))is deemed one of the promising anode materials for lithium-ion batteries(LIBs)for its outstanding intrinsic fast Li-(de)intercalation *** specific capacity,however,is still limited,because the(de)intercalation of excessive Li-ions brings the undesired stress to damage Nb_(2)O_(5) *** increase the capacity of Nb_(2)O_(5) and alleviate the lattice distortion caused by stress,numerous homogeneous H-and M-phases junction interfaces were proposed to produce coercive stress within theNb_(2)O_(5)*** interfaces bring about rich oxygen vacancies with structural shrinkage tendency,which pre-generate coercive stress to resist the expansion stress caused by excessive Li-ions ***,the synthesized Nb_(2)O_(5) achieves the highest lithium storage capacity of 315 mA h g−1 to date,and exhibits high-rate performance(118 mA h g^(-1) at 20 C)as well as excellent cycling stability(138 mA h g^(-1) at 10 C after 600 cycles).

关键词： Niobiumpent oxide Homojunction polycrystalline Defects Oxygen vacancy

Synchrotron Characterisation of Ultra-Fine Grain TiB_(2)/Al-Cu Composite Fabricated by Laser Powder Bed Fusion

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Acta Metallurgica Sinica(English Letters) 2022年第1期35卷 78-92页

作者： Sheng Li Biao Cai Ranxi Duan Lei Tang zihan song Dominic White Oxana V.Magdysyuk Moataz M.Attallah School of Metallurgy and Materials University of BirminghamEdgbastonBirminghamB152TTUK Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen518055China ZEISS House Building 1030Cambourne Business ParkCambourneCambridgeCB236DWUK Diamond Light Source Ltd Harwell Science and Innovation CampusDidcotOX110DEOxfordshireUK

Isotropy in microstructure and mechanical properties remains a challenge for laser powder bed fusion(LPBF)processed materials due to the epitaxial growth and rapid cooling in *** this study,a high-strength TiB_(2)/Al-Cu composite with random texture was successfully fabricated by laser powder bed fusion(LPBF)using pre-doped TiB_(2)/Al-Cu composite powder.A series of advanced characterisation techniques,including synchrotron X-ray tomography,correlative focussed ion beam-scanning electron microscopy(FIB-SEM),scanning transmission electron microscopy(STEM),and synchrotron in situ X-ray diffraction,were applied to investigate the defects and microstructure of the as-fabricated TiB_(2)/Al-Cu composite across multiple length *** study showed ultra-fine grains with an average grain size of about 0.86μm,and a random texture was formed in the as-fabricated condition due to rapid solidification and the TiB_(2)particles promoting heterogeneous *** yield strength and total elongation of the as-fabricated composite were 317 MPa and 10%,*** contributions of fine grains,solid solutions,dislocations,particles,and Guinier-Preston(GP)zones were *** was found to be initiated from the largest lack-of-fusion pore,as revealed by in situ synchrotron tomography during tensile *** situ synchrotron diffraction was used to characterise the lattice strain evolution during tensile loading,providing important data for the development of crystal-plasticity models.

关键词： Aluminium metal matrix composite Laser powder bed fusion Heterogeneous nucleation Synchrotron characterisation

Template-Induced Graphitic Nanodomains in Nitrogen-Doped Carbons Enable High-Performance Sodium-Ion Capacitors

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Energy & Environmental Materials 2024年第4期7卷 295-303页

作者： Chun Li zihan song Minliang Liu Enrico Lepre Markus Antonietti Junwu Zhu Jian Liu Yongsheng Fu Nieves López-Salas Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and TechnologyNanjing 210094China Colloid Chemistry Department Max Planck Institute of Colloids and InterfacesAm M»uhlenberg 114476PotsdamGermany School of Engineering Faculty of Applied ScienceUniversity of British ColumbiaKelownaBritish Columbia V1V1V7Canada

Sodium-ion capacitors(SICs)have great potential in energy storage due to their low cost,the abundance of Na,and the potential to deliver high energy and power *** article demonstrates a template-assisted method to induce graphitic nanodomains and micro-mesopores into nitrogen-doped *** study elucidates that these graphitic nanodomains are beneficial for Na+*** obtained N-doped carbon(As8Mg)electrode achieved a reversible capacity of 254 mA h g^(-1)at 0.1 A g^(-1).Moreover,the As8Mg-based SIC device achieves high combinations of power/energy densities(53 W kg^(-1)at 224 Wh kg^(-1)and 10410 W kg^(-1)at 51 Wh kg^(-1))with outstanding cycle stability(99.7%retention over 600 cycles at 0.2 A g^(-1)).Our findings provide insights into optimizing carbon’s microstructure to boost sodium storage in the pseudocapacitive mode.

关键词： anode graphitic nanodomains N-doped carbons sodium-ion capacitor template

Lack of ethylene does not affect reproductive success and synergid cell death in Arabidopsis

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Molecular Plant 2022年第2期15卷 354-362页

作者： Wenhao Li Qiyun Li Mohan Lyu Zhijuan Wang zihan song Shangwei Zhong Hongya Gu Juan Dong Thomas Dresselhaus Sheng Zhong Li-Jia Qu State Key Laboratory for Protein and Plant Gene Research Peking-Tsinghua Center for Life Sciences at College of Life SciencesPeking UniversityBeijing 100871People's Republic of China The National Plant Gene Research Center(Beijing) Beijing 100101People's Republic of China The Waksman Institute of Microbiology Rutgers the State University of New JerseyPiscatawayNJ 08854USA Cell Biology and Plant Biochemistry University of Regensburg93053 RegensburgGermany

The signaling pathway of the gaseous hormone ethylene is involved in plant reproduction,growth,devel-opment,and stress *** reproduction,the two synergid cells of the angiosperm female gametophyte both undergo programmed cell death(PCD)/degeneration but in a different manner:PCD/degeneration of one synergid facilitates pollen tube rupture and thereby the release of sperm cells,while PCD/degeneration of the other synergid blocks supernumerary pollen *** signaling was postu-lated to participate in some of the synergid cell functions,such as pollen tube attraction and the induction of PCD/***,ethylene-mediated induction of synergid PCD/degeneration and the role of ethylene itself have not been firmly ***,we employed the CRISPR/Cas9 technology to knock out the five ethylene-biosynthesis 1-aminocyclopropane-1-carboxylic acid oxidase(ACO)genes and created Arabidopsis mutants free of ethylene *** ethylene-free mutant plants showed normal triple responses when treated with ethylene rather than 1-aminocyclopropane-1-carboxylic acid,but had increased lateral root density and enlarged petal sizes,which are typical phenotypes of mutants defective in ethylene *** these ethylene-free plants,we further demonstrated that production of ethylene is not necessarily required to trigger PCD/degeneration of the two synergid cells,but certain com-ponents of ethylene signaling including transcription factors ETHYLENE-INSENSITIVE 3(EIN3)and EIN3-LIKE 1(EIL1)are necessary for the death of the persistent synergid cell.

关键词： ethylene ACC PCD synergid cells triple response Arabidopsis

The egg cell is preferentially fertilized in Arabidopsis double fertilization

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Journal of Integrative Plant Biology 2022年第11期64卷 2039-2046页

作者： Ling Li Saiying Hou Wei Xiang zihan song Yuan Wang Li Zhang Jing Li Hongya Gu Juan Dong Thomas Dresselhaus Sheng Zhong Li-Jia Qu State Key Laboratory for Protein and Plant Gene Research Peking‐Tsinghua Center for Life Sciences at College of Life SciencesPeking UniversityBeijing 100871China Beijing Advanced Innovation Center for Tree Breeding by Molecular Design College of Bioscience and Resources EnvironmentBeijing University of AgricultureBeijing 102206China The National Plant Gene Research Center Beijing 100101China The Waksman Institute of Microbiology Rutgers the State University of New JerseyPiscatawayNJ"2"08854USA Cell Biology and Plant Biochemistry University of RegensburgRegensburg 93053Germany

In flowering plants(angiosperms),fertilization of the egg cell by one sperm cell produces an embryo,whereas fusion of a second sperm cell with the central cell generates the *** most angiosperms like Arabidopsis,a pollen grain contains two isomorphic sperm cells required for this double fertilization process.A long-standing unsolved question is whether the two fertilization events have any preference.A tool to address this question is the usage of the cyclin-dependent kinase a1(cdka;1)mutant pollen,which produces a single sperm-like cell(SLC).Here,we first adopt a complementation-based fluorescence-labeling method to successfully separate and collect cdka;1 mutant pollen containing a single ***-cell RNA-sequencing analysis revealed that cdka;1 SLCs show a gene expression profile highly similar to that of sperm cells and not to the generative cell,precursor of the two sperm *** assays using a limited number of cdka;1 mutant pollen revealed that in 98.2%of the ovules,single fertilization of the egg cell *** of pistils with excessive cdka;1 mutant pollen allowed the delivery of a second SLC via fertilization recovery,which fertilized the central cell,resulting in 20.7%double-fertilized *** indicates that cdka;1 SLCs are able to fertilize both the egg and the central *** together,our findings have answered a long-standing question and support that preferential fertilization of the egg cell is evident in Arabidopsis.

关键词： Arabidopsis double fertilization egg cell preferential fertilization

Adaptive Finite Control Set Model Predictive Control Scheme for Single-phase Inverters with LCL Filter

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Adaptive Finite Control Set Model Predictive Control Scheme ...

Relationship between FGF12 expression in high-grade gliomas and clinical features

第三十九届中国控制会议

作者： Po Li zihan song Haodong Zhang Wentao Jin Department of Instrumental and Electrical Engineering School of Aerospace Engineering Xiamen University

Grid-connected inverter, as one of the core components of power system, plays an important role in renewable energy generation. Many control methods for inverters are widely studied. Among them, finite control set model predictive control（FCS MPC） has many advantages, such as fast transient response, simple implementation and convenience to consider nonlinear and constraints. However, FCS MPC also has some shortcomings, one of which is that the performance of predictive algorithm is easily affected by the system model. The performance of the traditional FCS MPC algorithm is susceptible to model errors and parameter variations. To solve this problem, an adaptive FCS MPC algorithm is designed in this paper. The single-phase inverter with LCL filter is selected as the control plant. Since the use of sensors will increase the cost of system, how to reduce the number of sensors is also researched. The traditional FCS MPC and proposed adaptive FCS MPC algorithm with fewer sensors are simulated respectively. The effectiveness of proposed method is confirmed by the results.

关键词： Finite control set model predictive control LCL filter Inverters Adaptive control

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Journal of Translational Neuroscience 2021年第2期6卷 12-25页

作者： zihan song Yijie Li Zijun Zhao Liqiang Liu Qianxu Jin Yizheng Wang Shiyang Zhang Zongmao Zhao Department of Neurosurgery the Second Affiliated Hospital of Hebei Medical UniversityShijiazhuang 050000China Department of Gynecology the Second Affiliated Hospital of Hebei Medical UniversityShijiazhuang 050000China

Objective:gliomas are the most common intracranial *** growth factor-12(FGF12),which belongs to the fibroblast growth factor(FGFs)family,plays an important role in cell mitosis,as well as in other life functions,such as embryo development,tissue repair,cell proliferation,and tumor growth and *** purpose of this study was to explore the potential value of FGF12 in high-grade gliomas and to predict its drug *** provide a possible therapeutic target for ***:high-grade glioma gene expression data and clinical information were downloaded from the gene expression omnibus(GEO)database,using the R language“impute”and“survival”survival analysis *** FGF12 genes closely related to survival were screened,a survival curve was drawn,and clinical correlation analysis was *** differentially expressed genes(DEGs)were defined as |logFC|>1,***<0.05 as the *** used the David for Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)analysis,and constructed the protein-protein interactions(PPI)*** we used the Connectivity Map(CMAP)database for drug location,and the validation group was verified by the Chinese Glioma Genome Atlas(CGGA)database in the same ***:we found that high FGF12 expression was associated with a higher survival *** same validation was performed in the validation group through the CGGA database,and the survival curve showed the same *** expression level of FGF12 is an independent factor that affects the life time and status of the samples,and it is a low risk *** enrichment analysis showed that differential genes were enriched in matrix transmembrane transporter activity,ion channels and calcium ion active *** showed that DEGs were enriched in the phosphatidylinositol 3-kinase(PI3K)-protein kinase B(Akt)signaling pathway,dopaminergic synapse and cyclic adenosine monophosphate(cAMP)signaling *** seed genes,GRIA2,COLLA2,GRIA4 and H

关键词： fibroblast growth factor-12(FGF12) high-grade glioma differences in genes prognosis

含垃圾能源化处理及电动汽车负载的区域综合能源系统协调优化

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电测与仪表 2024年第4期61卷 109-115页

作者：李畸勇宋子涵刘斌广西大学电气工程学院南宁530004

传统能源系统互相独立、欠缺联动,容易导致能量的浪费,并且能源结构也难以优化。区域综合能源系统具备多能互补、高效利用的优点,是提高能源利用效率和环保性的重要改进技术。为了利用垃圾蕴含的能量和电动汽车负载端的能源消纳,文中建... 详细信息

传统能源系统互相独立、欠缺联动,容易导致能量的浪费,并且能源结构也难以优化。区域综合能源系统具备多能互补、高效利用的优点,是提高能源利用效率和环保性的重要改进技术。为了利用垃圾蕴含的能量和电动汽车负载端的能源消纳,文中建立一个考虑垃圾焚烧和电动汽车负载的区域综合能源系统模型,利用模型进行系统的优化调度研究。论文分析了系统内的多能源能量流通关系,而后对系统内的各种能源转换设备及电动汽车进行分析,引入垃圾能源化处理,将热能转化为电能,并利用电动汽车进行电能消纳的模式,得出区域综合能源系统的能源效益最大化的模型。通过python进行算例分析,结果表明,含垃圾处理和电动汽车参与的区域综合能源系统既能提高能源的利用效率,又能带来更优的经济效益。

关键词：区域综合能源系统垃圾能源化电动汽车协调优化

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

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Science Bulletin 2020年第6期65卷 434-442,M0003页

作者： Cuilian Liu Tianyu Li Hongzhang Zhang zihan song Chao Qu Guangjin Hou Huamin Zhang Chuanfa Ni Xianfeng Li Division of Energy Storage Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Solid-state NMR&Catalytic Chemistry Group Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Shanghai Institute of Organic Chemistry Chinese Academy of Sciences.Shanghai 200032China

Li3N is an excellent zero-residue positive electrode pre-lithiation additive to offset the initial lithium loss in lithium-ion capacitors. However, Li3N has an intrinsic problem of poor compatibility with commonly used aprotic polar solvents in electrode manufacture procedure due to its high reactivity with commonly used solvents like N-methy-2-pyrrolidone(NMP) and etc. It is the Valley of Death between research and large-scale commercialization of Li-ion capacitors using Li3N as prelithiation agent. In this work, Li3N containing electrode is prepared by a commercially adoptable route for the first time, using N,Ndimethylformamide(DMF) to homogenate the electrode slurry. The DMF molecular stabilizing mechanism is confirmed via experiment analysis and DFT simulation, indicating that the dehydrogenation energy for DMF is obviously larger than other commonly used solvents such as NMP and etc. The soft package lithium-ion capacitors(LIC250) with only 12 wt% Li3N addition in AC positive electrode exhibits excellent rate capability, cyclic stability and ultrahigh specific energy. Its specific energy is 2.3 times higher than the Li3N-free devices, with energy retention as high as 90% after 10,000 cycles.

关键词： Li3N Soft package Pre-lithiation Lithium-ion capacitors High specific energy and long cycle life