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Metal organic frameworks-based cathode materials for advanced Li-S batteries: A comprehensive review

Nano Research 2024年第4期17卷 2592-2618页

作者： Zhengkun Xie Boyong Cao Xiyan Yue Ruixue Wang Ziqian Xue Jiajia Wang Guoqing Guan Weihua Chen College of Chemistry Zhengzhou UniversityZhengzhou 450001China School of Ecology and Environment Zhengzhou UniversityZhengzhou 450001China School of Materials Science and Engineering Henan Polytechnic UniversityJiaozuo 454003China Laboratory of Energy Conversion Engineering Institute of Regional InnovationHirosaki University3 Bunkyo-choHirosakiAomori 036-8561Japan Institute for Integrated Cell-Material Sciences(iCeMS) Kyoto UniversitySakyo-kuKyoto 606-8501Japan Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

Li-S batteries(LSBs)have been considering as new and promising energy storage systems because of the high theoretical energy density and low ***,their practical application is inhibited by several factors,including poor electrical conductivity of electrode materials,greatly volumetric variation,as well as the polysulfide formation upon the *** address these problems,it is imperative to develop and design effective and suitable sulfur host anode *** organic frameworks(MOFs)-based cathode materials,possessing their good conductivity and easy morphology design,have been extensively studied and exhibited enormously potential in *** this review,a comprehensive overview of MOFs-based sulfur host materials is provided,including their electrochemical reaction mechanisms,related evaluation parameters,and their performances used in LSBs in the past few *** particular,the recent advances using in-situ characterization technologies for investigating the electrochemical reaction mechanism in LSBs are presented and ***,the challenges and prospects associated with future research on MOF-related sulfur host materials are *** is anticipated to offer the guidance for the identification of suitable MOFs-based sulfur cathode materials for high-performance LSBs,thereby contributing for the achievement of a sustainable and renewable society.

关键词： lithium metal anode sulfur cathode metal organic frameworks host energy density in-situ characterization

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MAVEN observation of magnetosonic waves in the Martian magnetotail region

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Earth and Planetary Physics 2024年第2期8卷 317-325页

作者： ShangChun Teng JiCheng Sun JiaWei Gao Y.Harada Markus Fraenz DeSheng Han State Key Laboratory of Marine Geology School of Ocean and Earth ScienceTongji UniversityShanghai 200092China MNR Key Laboratory for Polar Science Polar Research Institute of ChinaShanghai 200136China Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China Department of Geophysics Kyoto UniversityKyotoJapan Max-Planck-Institute for Solar System Research GoettingenGermany

Magnetosonic waves are an important medium for energy transfer in collisionless space *** waves have been widely investigated in the upstream of the bow shock at *** waves are believed to originate from pickup ions or reflected *** utilizing MAVEN spacecraft data,we have observed the occurrence of quasi-perpendicularly propagating magnetosonic emissions near the proton gyrofrequency in the Martian magnetotail *** plasma waves are associated with a significant enhancement of proton and oxygen *** excited magnetosonic waves could possibly heat the protons through resonance and facilitate the ionospheric plasma *** results could be helpful to better understand the Mars’magnetospheric dynamics and offer insights into possible energy redistribution between waves and plasma in the Martian nightside magnetosphere.

关键词： Martian magnetotail region magnetosonic waves proton escape

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Detailed analysis of fan-shaped jets in three dimensional numerical simulation

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Research in Astronomy and Astrophysics 2011年第6期11卷 701-724页

作者： Rong-Lin Jiang K.Shibata H.Isobe Cheng Fang Department of Astronomy Nanjing UniversityNanjing 210093China Kwasan and Hida Observatories Kyoto UniversityYamashinaKyoto 607-8471Japan Unit of Synergetic Studies for Space Kyoto UniversityYamashinaKyoto 607－8471Japan Key Laboratory of Modern Astronomy and Astrophysics（Nanjing University） Ministry of EducationNanjing 210093China

We performed three dimensional resistive magnetohydrodynamic simulations to study the magnetic reconnection using an initially shearing magnetic field configuration（force free field with a current sheet in the middle of the computational box）.It is shown that there are two types of reconnection jets：the ordinary reconnection jets and fan-shaped jets,which are formed along the guide magnetic *** fan-shaped jets are significantly different from the ordinary reconnection jets which are ejected by magnetic tension *** are two driving forces for accelerating the fan-shaped *** is the Lorentz force which initially dominates the motion of fluid elements,and then the gas pressure gradient force accelerates the fluid elements in the later *** dependence on magnetic reconnection angle and resistivity value has also been *** formation and evolution of these jets provide a new understanding of dynamic magnetohydrodynamic jets.

关键词： magnetohydrodynamics MHD-methods numerical

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Physical and Microbiological Properties of Alfalfa-Established Soil in the Semiarid Horqin Sandy Land in Northern China

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Journal of Environmental Protection 2024年第4期15卷 439-449页

作者： Yumei Kang Tatsuya Kawazawa Taisei Kono Jun Kawamoto Yong Zhang Faculty of Agriculture and Marine Science Kochi University Nankoku Japan Institute for Chemical Research Kyoto University Kyoto Japan College of Resources and Environment Southwest University Chongqing China

In a previous article, we reported that a local variety of alfalfa (Medicago sativa L. cv. Aohan) had high potential to be a pioneer plant for ecological restoration in the Horqin Sandy Land, China. The plantation of Aohan significantly improved the organic matter, clay, total carbon and nitrogen contents of the soils. In this study, we investigated the physical properties such as dispersion ratio, water-stable aggregates content, and the soil microbiomes, five years after alfalfa establishment in the same study site. We found no significant difference in the dispersion ratios between the soils before and after alfalfa establishment, and all the soils at the study site were erosive. Water stable aggregates mainly distributed in 96%, suggesting that it would take longer time for improving soil structure. However, large-size aggregates (2 - 5 mm) content was slightly higher in the alfalfa planting plots. This slight increase is presumed to have long-term importance for soil and ecosystem recovery in semi-arid areas like Horqin Sandy Land. Moreover, we also found that Actinomycetes dominated the microbial community in both bulk and rhizosphere soils, and two kinds of rhizobia, Bradyrhizobium and Sinorhizobium fredii, were identified in the rhizosphere soil.

关键词： Dispersion Ratio Water-Stable Aggregate Rhizosphere Microbiome Rhizobia

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Solar Driven 15.7% Hydrogen Conversion by Harmony of Light Harvesting,Electron Transporting Bridge,and S-Defection in a Self-Assembled Microscale CuS/rGO/CP Photoanode

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Energy & Environmental Materials 2024年第3期7卷 194-205页

作者： Sujeong Kim Boseok Seo Hyerim Park Younghwan Im Jeong Yeon Do Byung Sub Kwak Namgyu Son Minkyu Kim Misook Kang Department of Chemistry College of Natural SciencesYeungnam University School of Chemical Engineering Yeungnam University Department of Energy and Hydrocarbon Chemistry Graduate School of EngineeringKyoto University Korea Evaluation Institute of Industrial Technology (Keit) Electric Power Research Institute (KEPRI) 105 Munji-ro

CuS is an encouraging photoelectrode candidate that meets the essential requirements for efficient solar-to-hydrogen production,but it has not been thoroughly studied.A CuS light absorber layer is grown by the self-assembly of copper and sulfur precursors on a carbon paper （CP） ***,rCO is introduced as a buffer layer to control the optical and electrical properties of the *** well-ordered microstructural arrangement suppresses the recombination loss of electrons and holes owing to enhanced charge-carrier generation,separation,and *** potential reaching 10mA cm-2in 1.0 M KOH solution is significantly lowered to 0.87 V,and the photocurrent density at 1.23 V is 94.7 mA *** computational result reveals that the potential-determining step is sensitive to O*stability; the lower stability of O*in the thin layer of CuS/rCO decreases the free-energy gap between the initial and final states of the potential-determining step,resulting in a lowering of the onset *** faradaic efficiency for the photoelectrochemical oxygen evolution reaction in the optimized 2CuS/1rCO/CP photoanode is 98.60%,and the applied bias photon-to-current and the solar-to-hydrogen efficiencies are 11.2%and 15.7%,respectively,and its ultrahigh performance is maintained for 250 *** record-breaking achievement indices may be a trigger for establishing a green hydrogen economy.

关键词： 15.7%-solar to hydrogen density functional theory lower photopotential p-CuS/rGO/CP photoanode photoelectrochemical oxygen evolution

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Electro-optic 3D snapshot of a laser wakefield accelerated kilo-ampere electron bunch

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Light(Science & Applications) 2024年第5期13卷 823-834页

作者： Kai Huang Zhan Jin Nobuhiko Nakanii Tomonao Hosokai Masaki Kando Kansai Institute for Photon Science(KPSI) National Institutes for Quantum Science and Technology(QST)KyotoJapan. Laser Accelerator R&D Innovative Light Sources DivisionRIKEN SPring-8 CenterHyogoJapan. SANKEN Osaka UniversityOsakaJapan

Laser wakefield acceleration,as an advanced accelerator concept,has attracted great attentions for its ultrahigh acceleration gradient and the capability to produce high brightness electron *** three-dimensional(3D)density serves as an evaluation metric for the particle bunch quality and is intrinsically related to the applications of an *** its significance,this parameter has not been experimentally measured in the investigation of laser wakefield *** report on an electro-optic 3D snapshot of a laser wakefield electron bunch at a position outside the *** 3D shape of the electron bunch was detected by simultaneously performing optical transition radiation imaging and electro-optic *** 3D structures to a few micrometer levels were reconstructed using a genetic *** electron bunch possessed a transverse size of less than 30 *** current profile shows a multi-peak *** main peak had a duration of1 *** maximum electron 3D number density was~9×10^(21)m^(-3).This research demonstrates a feasible way of 3D density monitoring on femtosecond kilo-ampere electron bunches,at any position of a beam transport line for relevant applications.

关键词： laser acceleration field

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Characterization of a Human 105-kDa Heat Shock Protein, HSP105

Characterization of a Human 105-kDa Heat Shock Protein, HSP1...

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Third Congress of the Asian-Pacific Organization for Cell Biology

作者： Keiichi Ishihara Kunihiko Yasuda Takumi Hatayama Department of Biochemistry Kyoto Pharmaceutical UniversityYamashina-kuKyoto 607-8414Japan

We have characterized two members of mouse high molecular mass heat shock protein (HMM HSP) family, HSP105 (HSP105α) and 42 ℃-specific HSP (HSP105β). In this study, to characterize human homologue of H M M

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Simulation and Analysis of Cascading Faults in Integrated Heat and Electricity Systems Considering Degradation Characteristics

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Energy Engineering 2024年第3期121卷 581-601页

作者： Hang Cui Hongbo Ren Qiong Wu Hang Lv Qifen Li Weisheng Zhou College of Energy and Mechanical Engineering Shanghai University of Electric PowerShanghai200090China Shanghai Non-Carbon Energy Conversion and Utilization Institute Shanghai200240China College of Policy Sciences Ritsumeikan UniversityKyoto603-8577Japan

Cascading faults have been identified as the primary cause of multiple power outages in recent *** the emergence of integrated energy systems(IES),the conventional approach to analyzing power grid cascading faults is no longer appropriate.A cascading fault analysis method considering multi-energy coupling characteristics is of vital *** this study,an innovative analysis method for cascading faults in integrated heat and electricity systems(IHES)is *** considers the degradation characteristics of transmission and energy supply com-ponents in the system to address the impact of component aging on cascading ***,degradation models for the current carrying capacity of transmission lines,the water carrying capacity and insulation performance of thermal pipelines,as well as the performance of energy supply equipment during aging,are ***,a simulation process for cascading faults in the IHES is *** utilizes an overload-dominated development model to predict the propagation path of cascading faults while also considering network islanding,electric-heating rescheduling,and load *** propagation of cascading faults is reflected in the form of fault ***,the results of cascading faults under different aging levels are analyzed through numerical examples,thereby verifying the effectiveness and rationality of the proposed model and method.

关键词： Cascading fault degradation characteristics integrated heat and electricity system multi-energy flow

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送地球一个光环

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好作文 2024年第13期 48-49页

作者：肖梓楠广东省东莞市东城花园小学607班

在2135年，人类已经达到了1.3级文明。我是一名科学家，正在北京参加全球首台时光机商讨会议。近日，天文家观测到，月球被一颗直径约为55千米的小行星撞击，目前月球正以每小时200千米的速度向地球靠近，并且由于引力速度会不断增加。

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Development of Several New Reactions and Their Application to the Total Synthesis of Biologically Active Natural Products:Synthesis of Linderol A and Determination of Its Absolute Configuration

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复旦学报（自然科学版） 2005年第5期44卷 783-784页

作者： Shunsaku Ohta Department of Functional Molecular Chemistry Kyoto Pharmaceutical University Misasagi Yamashinaku Kyoto 607-8412 Japan

Linderol A (1), a monoterpene-polyketide, was isolated in 1995 from the fresh bark of Lindera umbellata (Lauraceae), and its absolute structure was not determined[1]. It was also reported potent inhibitory activity of 1 on the melanin biosynthesis of the cultured B-16 melanoma cells[1]. See Fig. 1. On the other hand,we reported in 1995 an interesting multi-tandem reaction of coumarin derivatives (2; W = electron withdrawing group) by treatment with CH2 = S(O)Me2 to yield stereoselectively a tricyclic 2-substituted cyclopenta [ b ] benzofuran-3-ol derivative (4) via a cyclopropane intermediate (3) (Scheme 1)[2].

关键词：烯酸自然产物合成方法硫磺立体收敛

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