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Reinforced Lewis covalent bond by twinborn nitride heterostructure for lithium-sulfur batteries

Journal of Energy Chemistry 2024年第1期88卷 363-372,I0009页

作者： Yaochen Song Pengkai Tang Yanjie Wang Yi Wang linnan bi Qi Liang Liang He Qingyu Xie Yiyong Zhang Peng Dong Yingjie Zhang Yao Yao Jiaxuan Liao Sizhe Wang Yangtze Delta Region Institute(QuZhou) University of Electronic Science and Technology of ChinaQinzhou 324000ZhejiangChina School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093YunnanChina School of Materials Science and Engineering Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science&TechnologyXi’an 710021ShaanxiChina School of Environmental Science and Engineering North China Electric Power UniversityBaoding 071003HebeiChina

The practical application of lithium-sulfur(Li-S)batteries,as promising next-generation batteries,is hindered by their shuttle effect and the slow redox ***,a tungsten and molybdenum nitride heterostructure functionalized with hollow metal-organic framework-derived carbon(W_(2)N/Mo_(2)N)was proposed as the sulfur *** hollow spherical structure provides storage space for sulfur,enhances electrical conductivity,and inhibits volume *** metal atoms in the nitrides bonded with lithium polysulfides(Li PSs)through Lewis covalent bonds,enhancing the high catalytic activity of the nitrides and effectively reducing the energy barrier of Li PSs redox ***,the high intrinsic conductivity of nitrides and the ability of the heterostructure interface to accelerate electron/ion transport improved the Li+*** leveraging the combined properties of strong adsorption and high catalytic activity,the sulfur host effectively inhibited the shuttle effect and accelerated the redox kinetics of Li ***-efficiency Li+transmission,strong adsorption,and the efficient catalytic conversion activities of Li PSs in the heterostructure were experimentally and theoretically *** results indicate that the W_(2)N/Mo_(2)N cathode provides stable,and long-term cycling(over 2000 cycles)at 3 C with a low attenuation rate of 0.0196%per *** design strategy of a twinborn nitride heterostructure thus provides a functionalized solution for advanced Li-S batteries.

关键词： Heterostructure Adsorption Redox kinetics

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A highly ionic transference number eutectogel hybrid electrolytes based on spontaneous coupling inhibitor for solid-state lithium metal batteries

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Nano Research 2023年第1期16卷 1717-1725页

作者： linnan bi Xiongbang Wei Yuhong Qiu Yaochen Song Xin Long Zhi Chen Sizhe Wang Jiaxuan Liao School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China The Yangtze Delta Region Institute(Quzhou) University of Electronic Science and Technology of ChinaQuzhou 324000China School of Materials Science and Engineering Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science&TechnologyXi’an 710021China

Polymer-based solid electrolytes have been extensively studied for solid-state lithium metal batteries to achieve high energy density and reliable ***,its practical application is severely limited by low ionic conductivity and slow Li+***,based on the“binary electrolytes”of poly(vinylidene fluoride-chlorotrifluoroethylene)(P(VDF-CTFE))and lithium salt(LiTFSI),a kind of eutectogel hybrid electrolytes(EHEs)with high Li+transference number was developed via tuning the spontaneous coupling of charge and vacated space generated by Li-cation diffusion utilizing the Li6.4La3Zr1.4Ta0.6O12(LLZTO)*** doping promotes the dissociation of lithium salt,increases Li+carrier density,and boosts ion jumping and the coordination/decoupling reactions of Li+.As a result,the optimized EHEs-10%possess a high Li-transference number of 0.86 and a high Li+conductivity of 3.2×10–4 S·cm–1 at room ***,the prepared EHEs-10%composite solid electrolyte presents excellent lithiumphilic and compatibility,and can be tested stably for 1,200 h at 0.3 mA·cm–2 with assembled lithium symmetric ***,the EHEs-10%films match well with high-loading LiFePO4 and LiCoO2 cathodes(>10 mg·cm–2)and exhibit remarkable interface ***,the LiFePO4//EHEs-10%//Li and LiCoO2//EHEs-10%//Li cells deliver high rate performance of 118 mAh·g–1 at 1 C and 93.7 mAh·g–1 at 2 C with coulombic efficiency of 99.3%and 98.1%,*** work provides an in-depth understanding and new insights into our design for polymer electrolytes with fast Li+diffusion.

关键词： poly(vinylidene fluoride-chlorotrifluoroethylene)(P(VDF-CTFE)) Li6.4La3Zr1.4Ta0.6O12(LLZTO) ionic transference numbers eutectic solvent composite electrolytes solid state lithium metal battery

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Absorption-dominant EMI shielding performance of multiple folded bi_(2)Se_(3)/PVDF nanocomposite films

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Journal of Materiomics 2024年第1期10卷 27-36页

作者： Xinyi Pu Zunpeng Feng Siyuan Sun Ke bi Yanan Hao State Key Laboratory of Information Photonics and Optical Communications School of ScienceBeijing University of Posts and TelecommunicationsBeijing100876China Chinese Academy of Engineering Innovation Strategy Beijing100088China

Absorption-dominant electromagnetic interference(EMI)shielding materials are promising in reducing electromagnetic radiation pollution,but their preparation processes are usually difficult and unsuitable for large-scale *** this work,multiple folded bi_(2)Se_(3)/PVDF nanocomposite films were fabri-cated by using a convenient tape-casting method and multiple folding,which can be easily extended in industrial *** EMI shielding effectiveness(SE)of the composite materials was investigated,which shows typical absorption-dominant behavior and can substantially reduce secondary ***,for the 35%(in volume)bi_(2)Se_(3)/PVDF nanocomposite film,the SE_(A)of single-layered film with a thickness of 60 mm reaches 20 dB while SE_(R)is lower than 5 *** folding the film into eight layers,the SE_(A)increased to 50 dB while SE_(R)remains below 5 *** method provides an effective way to the fabrication of absorption-dominant electromagnetic absorption(EMA)and EMI shielding material.

关键词： Electromagnetic interference shielding(EMI) Electromagnetic wave absorption bismuth selenide Composite

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On the Proper Holomorphic Mappings between Equidimensional Hartogs Domains over Hermitian Symmetric Manifolds

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Acta Mathematica Sinica,English Series 2024年第5期40卷 1215-1228页

作者： En Chao bi School of Mathematics and Statistics Qingdao UniversityQingdao 266071P.R.China

In this paper,we study a family of Hartogs domains fibred over Hermitian symmetric manifolds being a unit ball in C^(m).The aim of the present study is to establish the rigidity results about proper holomorphic mappings between two equidimensional Hartogs domains over Hermitian symmetric *** particular,we can fully determine its biholomorphic equivalence and automorphism group.

关键词： Proper holomorphic mapping Hartogs domains Hermitian symmetric manifolds

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Optical Modeling of Sea Salt Aerosols Using in situ Measured Size Distributions and the Impact of Larger Size Particles

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Advances in Atmospheric Sciences 2024年第10期41卷 1917-1935页

作者： Wushao LIN Lei bi Key Laboratory of Geoscience big Data and Deep Resource of Zhejiang Province School of Earth SciencesZhejiang University

Sea salt aerosols play a critical role in regulating the global climate through their interactions with solar radiation. The size distribution of these particles is crucial in determining their bulk optical properties. In this study, we analyzed in situ measured size distributions of sea salt aerosols from four field campaigns and used multi-mode lognormal size distributions to fit the data. We employed super-spheroids and coated super-spheroids to account for the particles' non-sphericity,inhomogeneity, and hysteresis effect during the deliquescence and crystallization processes. To compute the singlescattering properties of sea salt aerosols, we used the state-of-the-art invariant imbedding T-matrix method, which allows us to obtain accurate optical properties for sea salt aerosols with a maximum volume-equivalent diameter of 12 μm at a wavelength of 532 nm. Our results demonstrated that the particle models developed in this study were successful in replicating both the measured depolarization and lidar ratios at various relative humidity(RH) levels. Importantly, we observed that large-size particles with diameters larger than 4 μm had a substantial impact on the optical properties of sea salt aerosols, which has not been accounted for in previous studies. Specifically, excluding particles with diameters larger than 4 μm led to underestimating the scattering and backscattering coefficients by 27%-38% and 43%-60%, respectively,for the ACE-Asia field campaign. Additionally, the depolarization ratios were underestimated by 0.15 within the 50%-70%RH range. These findings emphasize the necessity of considering large particle sizes for optical modeling of sea salt aerosols.

关键词： aerosol particle size distribution lidar optical property sea salt

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Advances in regional nodal management of early-stage breast cancer

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Chinese Journal of Cancer Research 2024年第2期36卷 215-225页

作者： Zhao bi Yongsheng Wang Breast Cancer Center Shandong Cancer Hospital and InstituteShandong First Medical University and Shandong Academy of Medical SciencesJinan 250017China

With the continuous improvement of systemic treatment, reasonable local regional control of early-stage breast cancer can be translated into survival benefits. The optimization of regional nodal management in patients with limited sentinel lymph node(SLN) metastasis needs to be weighed by surgical complications, regional recurrence risk, and lymph node status, as well as other escalating treatment(systemic/radiotherapy) that may result from deescalating surgery. With the effective support and supplementation of systemic therapy and radiotherapy, the management of axillary surgery is developing in a de-escalating trend. The widespread application of neoadjuvant therapy has contributed to optimizing the management of patients with clinically node-negative/imaging nodepositive disease. In clinical practice, it is necessary to consider the residual tumor burden of regional lymph nodes when formulating the optimal irradiation fields in patients with limited positive SLN without axillary lymph node dissection. The combined application of genomic tests and American College of Surgeons Oncology Group Z0011/AMAROS criteria could provide patients with a better strategy of dual de-escalation treatment, which includes the de-escalation of both axillary surgery and systemic treatment. In the era of sentinel lymph node biopsy(SLNB), the regional nodal management of breast cancer should adhere to the concept of “updating ideas, making bold assumptions, and carefully seeking proof”, make full use of the benefits of systemic therapy and radiotherapy to reduce the scope of surgery and complications, and expand the “net benefit” of efficacy and quality of life. This review discusses the optimization of regional nodal management in the era of SLNB, in order to provide reference information for clinicians.

关键词： Breast cancer sentinel lymph node biopsy internal mammary lymph node radiotherapy surgery

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On-the-fly precision spectroscopy with a dual-modulated tunable diode laser and Hz-level referencing to a cavity

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Advanced Photonics 2024年第4期6卷 36-44页

作者： Shuangyou Zhang Toby bi Pascal Del’Haye Max Planck Institute for the Science of Light ErlangenGermany Friedrich-Alexander Universität Erlangen-Nürnberg Department of PhysicsErlangenGermany

Advances in laser spectroscopy have enabled many scientific breakthroughs in physics,chemistry,biology,and *** frequency combs pushed measurement limits with ultrahigh-frequency accuracy and fast-measurement speed,while tunable-diode-laser spectroscopy is used in scenarios that require high power and continuous spectral *** these advantages of tunable-diode-laser spectroscopy,it is challenging to precisely determine the instantaneous laser frequency because of fluctuations in the scan ***,we demonstrate a simple spectroscopy scheme with a frequencymodulated diode laser that references the laser on-the-fly to a fiber *** fiber cavity's free spectral range is on-the-fly calibrated with sub-10-Hz frequency *** achieve a relative precision of the laser frequency of 2×10^(-8)for an 11-THz frequency range at a measurement speed of 1 THz∕*** is an improvement of more than 2 orders of magnitude compared to existing diode-laser-spectroscopy *** scheme provides precise frequency calibration markers,while simultaneously tracking the instantaneous scan speed of the *** demonstrate the versatility of our method through various applications,including dispersion measurement of a fiber,ultrahigh-Q microresonators,and spectroscopy of a hydrogen fluoride gas *** simplicity,robustness,and low cost of this spectroscopy scheme are valuable for out-of-the-lab applications like lidar and environmental monitoring.

关键词： tunable laser spectroscopy radio-frequency modulation integrated photonics gas spectroscopy frequency comb

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ORPA:a fast and efficient phylogenetic analysis method for constructing genome-wide alignments of organelle genomes

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Journal of Genetics and Genomics 2024年第3期51卷 352-358页

作者： Guiqi bi Xinxin Luan Jianbin Yan Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureKey Laboratory of Synthetic BiologyMinistry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhenGuangdong 518124China Zhengzhou Research Base State Key Laboratory of Cotton BiologySchool of Agricultural SciencesZhengzhou UniversityZhengzhouHenan 450001China

Creating a multi-gene alignment matrix for phylogenetic analysis using organelle genomes involves aligning single-gene datasets manually,a process that can be time-consuming and prone to *** HomBlocks pipeline has been created to eliminate the inaccuracies arising from manual *** processing of a large number of sequences,however,remains a time-consuming *** conquer this challenge,we develop a speedy and efficient method called Organelle Genomes for Phylogenetic Analysis(ORPA).ORPA can quickly generate multiple sequence alignments for whole-genome comparisons by parsing the result files of NCbi BLAST,completing the task just in 1 *** increasing data volume,the efficiency of ORPA is even more pronounced,over 300 times faster than HomBlocks in aligning 60 high-plant chloroplast *** phylogenetic tree outputs from ORPA are equivalent to HomBlocks,indicating its outstanding *** to its speed and accuracy,ORPA can identify species-level evolutionary conflicts,providing valuable insights into evolutionary cognition.

关键词： Ultrafast alignment Organelle phylogenomics Phylogenomic conflict Efficient pipeline Multiple sequence alignment pipeline

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bimetallic In_(2)O_(3)/bi_(2)O_(3) Catalysts Enable Highly Selective CO_(2) Electroreduction to Formate within Ultra-Broad Potential Windows

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Energy & Environmental Materials 2024年第1期7卷 257-264页

作者： Zhongxue Yang Hongzhi Wang Xinze bi Xiaojie Tan Yuezhu Zhao Wenhang Wang Yecheng Zou Huai ping Wang Hui Ning Mingbo Wu State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringCollege of New EnergyChina University of Petroleum(East China)Qingdao 266580China Shandong Dongyue Future Hydrogen Energy Material Co. Ltd.Zibo 255000China

CO_(2)electrochemical reduction reaction(CO_(2)RR)to formate is a hopeful pathway for reducing CO_(2)and producing high-value chemicals,which needs highly selective catalysts with ultra-broad potential windows to meet the industrial ***,the nanorod-like bimetallic ln_(2)O_(3)/bi_(2)O_(3)catalysts were successfully synthesized by pyrolysis of bimetallic Inbi-MOF *** abundant oxygen vacancies generated from the lattice mismatch of bi_(2)O_(3)and ln_(2)O_(3)reduced the activation energy of CO_(2)to*CO_(2)·^(-)and improved the selectivity of*CO_(2)·^(-)to formate ***,the carbon skeleton derived from the pyrolysis of organic framework of Inbi-MOF provided a conductive network to accelerate the electrons *** catalyst exhibited an ultra-broad applied potential window of 1200 mV(from-0.4 to-1.6 V vs RHE),relativistic high Faradaic efficiency of formate(99.92%)and satisfactory stability after 30 *** in situ FT-IR experiment and DFT calculation verified that the abundant oxygen vacancies on the surface of catalysts can easily absorb CO_(2)molecules,and oxygen vacancy path is dominant *** work provides a convenient method to construct high-performance bimetallic catalysts for the industrial application of CO_(2)RR.

关键词： bimetallic catalyst CO_(2)electrochemical reduction reaction formate oxygen vacancy wide potential window

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Experimental and numerical study on dynamic mechanical behaviors of shale under true triaxial compression at high strain rate

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International Journal of Mining Science and Technology 2024年第2期34卷 149-165页

作者： Xiaoping Zhou Linyuan Han Jing bi Yundong Shou School of Civil Engineering Wuhan UniversityWuhan 430072China College of Civil Engineering Guizhou UniversityGuiyang 550025China

High-energy gas fracturing of shale is a novel,high efficacy and eco-friendly mining technique,which is a typical dynamic perturbing *** effectively extract shale gas,it is important to understand the dynamic mechanical properties of *** experiments on shale subjected to true triaxial compression at different strain rates are first conducted in this *** dynamic stress-strain curves,peak strain,peak stress and failure modes of shale are *** results of the study indicate that the intermediate principal stress and the minor principal stress have the significant influence on the dynamic mechanical behaviors,although this effect decreases as the strain rate *** characteristics of compression-shear failure primarily occur in shale subjected to triaxial compression at high strain rates,which distinguishes it from the fragmentation characteristics observed in shale under dynamic uniaxial ***,a numerical three-dimensional Split Hopkinson Pressure Bar(3D-SHPB),which is established by coupling PFC3D and FLAC3D methods,is validated to replicate the laboratory characteristics of *** dynamic mechanical characteristics of shale subjected to different confining stresses are systematically investigated by the coupling PFC3D and FLAC3D *** numerical results are in good agreement with the experimental data.

关键词： Dynamic behaviors True triaxial compression High strain rates Dynamic failure mechanism PFC3D-FLAC3D coupled method

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