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不同厂家热电池fes-CoS复合正极材料的比较研究

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火工品 2024年

作者：冯帅张纯彭振国孙现忠刘岁鹏史紫阳杨军中国人民解放军93170部队西安北方庆华机电有限公司

为了加快热电池fes2-CoS2复合正极材料的优化及应用，采用两种不同厂家生产的CoS2作为导电剂添加到fes2中，制备出fes2-CoS2复合正极材料及其单体电池，并对两种CoS2原材料、fes2-CoS2复合正极材料的微观形貌、粒度分布、X射线衍射分析... 详细信息

为了加快热电池fes2-CoS2复合正极材料的优化及应用，采用两种不同厂家生产的CoS2作为导电剂添加到fes2中，制备出fes2-CoS2复合正极材料及其单体电池，并对两种CoS2原材料、fes2-CoS2复合正极材料的微观形貌、粒度分布、X射线衍射分析以及单体电池的放电性能进行了研究。结果表明，广东产的fes2-CoS2正极材料具有更均匀的微观分布和较少的小粒度粒子，湖南产的fes2-CoS2正极材料更适合小电流放电应用，而广东产的fes2-CoS2正极材料更适合于高功率放电。此外，将两种fes2-CoS2正极材料应用于某型号热电池并进行高低温放电测试，结果表明广东产的fes2-CoS2正极材料在放电性能上优于湖南产的fes2-CoS2正极材料。

关键词：热电池正极材料 fes CoS 微观形貌放电性能

^(18)F-FDG联合^(18)F-fes PET/CT诊断乳腺癌胃转移1例

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肿瘤影像学 2024年第1期33卷 99-100页

作者：王戈刘成许晓平宋少莉杨忠毅复旦大学附属肿瘤医院厦门医院核医学科福建厦门361027 复旦大学附属肿瘤医院核医学科复旦大学上海医学院肿瘤学系上海200032

1资料患者,女性,40岁,2011年于外院行左侧乳腺癌改良根治术,术后病理学检查提示左乳浸润性导管癌,部分为黏液腺癌,Ⅱ级,乳头及皮肤未累及,左腋窝淋巴结见癌转移(7/7),免疫组织化学:雌激素受体(estrogen receptor,ER)80%+,孕激素受体(pro... 详细信息

1资料患者,女性,40岁,2011年于外院行左侧乳腺癌改良根治术,术后病理学检查提示左乳浸润性导管癌,部分为黏液腺癌,Ⅱ级,乳头及皮肤未累及,左腋窝淋巴结见癌转移(7/7),免疫组织化学:雌激素受体(estrogen receptor,ER)80%+,孕激素受体(progesterone receptor,PR)40%+,Ki-67增殖指数35%,人表皮生长因子受体2(human epidermal growth factor receptor 2,HER2)-,术后行标准放化疗及内分泌治疗至2017年。

关键词：乳腺癌胃癌转移 FDG fes 正电子发射体层成像/计算机体层成像

fes@LAB-35@Ti_(3)C_(2)as a high-efficiency nanozyme for near infrared light induced photothermal enhanced chemodynamic antibacterial activity and wound healing

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Nano Research 2023年第2期16卷 2840-2850页

作者： Gaoqi Sun Xuefeng Jiang Cheng Liu Saijie Song Jun Zhang Jian Shen National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023China Medical School Nanjing UniversityNanjing 210093China Jiangsu Engineering Research Center of Interfacial Chemistry Nanjing UniversityNanjing 210023China

The abuse of antibiotics leads to a significant increase in bacterial resistance,which makes it difficult to treat bacterial ***,it is urgent to develop new strategies for efficient antibacterial and wound ***,nanozymes based antibacterial agents have attracted increasing attention for their multifunction and high *** this study,we report a fes@lauramidopropyl betaine(LAB-35)@Ti_(3)C_(2)nanozyme as a high-efficiency antibacterial agent for near infrared(NIR)light induced photothermal enhanced chemodynamic antibacteria and wound *** fes@LAB-35@Ti_(3)C_(2)nanozyme possesses peroxidase-like catalysis activity,which can promote the generation of hydroxyl radicals(·OH)through catalyzing the decomposition of H_(2)O_(2).fes@LAB-35@Ti_(3)C_(2)has photothermal conversion efficiency(η=65.1%),and it exhibits enhanced catalytic activity under NIR light *** in vitro antibacterial experiments demonstrate the excellent antibacterial activity of fes@LAB-35@Ti_(3)C_(2)against representative Gram-negative Escherichia coli and Gram-positive Staphylococcus *** animal experiments indicate that fes@LAB-35@Ti_(3)C_(2)nanozyme can effectively inhibit wound ulceration and promote wound ***,this study proposes fes@LAB-35@Ti_(3)C_(2)nanozyme that integrates chemodynamic and photothermal therapy,which provides an efficient strategy for bacterial inhibition and wound healing.

关键词： MXene fes nanozyme photothermal enhanced chemodynamic antibacterial activity wound healing

Performance and mechanism of carbamazepine removal by fes-S_(2)O_(8)^(2–)process:experimental investigation and DFT calculations

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Frontiers of Environmental Science & Engineering 2023年第9期17卷 209-220页

作者： Xuejun Long Jun Luo Zhenxing Zhong Yanxu Zhu Chunjie Zhang Jun Wan Haiyan Zhou Beiping Zhang Dongsheng Xia College of Environmental Engineering Wuhan Textile UniversityWuhan 430200China Engineering Research Center for Clean Production of Textile Printing and Dyeing(Ministry of Education) Wuhan Textile UniversityWuhan 430073China Central&Southern China Municipal Engineering Design and Research Institute Co. Ltd.Wuhan 430010China Soil Environmental Institute Guangdong Provincial Academy of Environmental ScienceGuangzhou 510045China School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China

As persulfate(S_(2)O_(8)^(2-))is being increasingly used as an alternative oxidizing agent,developing lowcost and eco-friendly catalysts for efficient S_(2)O_(8)^(2-)activation is potentially useful for the treatment of wastewater containing refractory organic *** this study,the degradative features and mechanisms of carbamazepine(CBZ)were systematically investigated in a novel fes-S_(2)O_(8)^(2-)process under near-neutral *** results exhibited that CBZ can be effectively eliminated by the fes-S_(2)O_(8)^(2-)process and the optimal conditions were:250 mg/L fes,0.5 mmol/L S_(2)O_(8)^(2-),and pH=*** existence of Cl^(−)(1 and 50 mmol/L)has little influence on the CBZ elimination,while both HCO_(3)^(−) and HPO_(4)^(2−)(1 and 50 mmol/L)significantly suppressed the CBZ removal in the fes-S_(2)O_(8)^(2-)*** could be degraded via a radical mechanism in the fes-S_(2)O_(8)^(2-)process,the working radical species(i.e.,SO_(4)•−and•OH)were efficiently formed via the promoted decomposition of S_(2)O_(8)^(2-)by the surface Fe2+on the fes and the dissolved ferrous ions in *** on the identified oxidized products and Fukui index calculations,a possible degradation pathway of CBZ was *** importantly,a two-stage oxidation mechanism of CBZ elimination was speculated in the fes-S_(2)O_(8)^(2-)process,the activation of S_(2)O_(8)^(2-)by the surface-active Fe(II)of fes dominated in the initial 5 min,while homogeneous oxidation reactions played more essential parts than others in the following reaction stage(5–60 min).Overall,this study demonstrated that the fes-S_(2)O_(8)^(2-)process is capable of removing CBZ from water efficiently.

关键词： fes S_(2)O_(8)^(2-) Carbamazepine DFT calculations Degradation routes

Immobilization of arsenic in soils by stabilized nanoscale zero-valent iron, iron sulfide (fes), and magnetite (Fe_3O_4) particles

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Chinese Science Bulletin 2010年第23期55卷 365-372页

作者： ZHANG MeiYi WANG Yu ZHAO DongYe PAN Gang Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Environmental Engineering Program Department of Civil Engineering 238 Harbert Engineering Center Auburn University Auburn AL 36849 USA

Arsenic is a widespread contaminant in soils and groundwater. While various iron-based materials have been studied for immobilizing arsenic in contaminated soils, the feasibility of stabilized iron-based nanoparticles has not been reported. This study investigates the effectiveness of using three types of starch-stabilized iron-based nanoparticles, including zero-valent iron (ZVI), iron sulfide (fes), and magnetite (Fe3O4), for immobilization of arsenic in two representative As-contaminated soils (an orchard soil and a fire range soil). To test the effect of the nanoparticles on the arsenic leachability, As-contaminated soils were amended with the nanoparticles at various Fe/As molar ratios (5:1―100:1) and contact time (3 and 7 d). After three days' treatments of a field-contaminated sandy soil, the PBET-based bioaccessibility of As decreased from an initial (71.3±3.1)% (mean±SD) to (30.9±3.2)% with ZVI, (37.6±1.2)% with fes, and (29.8± 3.1)% with Fe3O4 at an Fe/As molar ratio of 100:1. The TCLP-based leachability of arsenic in a spiked fire range soil decreased from an initial (0.51±0.11)% to (0.24±0.03)%, (0.27±0.04)% and (0.17±0.04)% by ZVI, fes, and Fe3O4 nanoparticles, respectively. The Fe3O4 nanoparticles appeared to be more effective (5% or more) than other nanoparticles for immobilizing arsenic. When the two soils were compared, the treatment is more effective on the orchard soil that has a lower iron content and higher initial leachability than on the range soil that already has a high iron content. These results suggest that these innocuous iron-based nanoparticles may serve as effective media for immobilization of As in iron-deficient soils, sediments or solid wastes.

关键词： Fe3O4 零价铁纳米级磁铁矿 fes 硫化铁稳定土壤

Effects of cathode materials on discharge characteristics of Li B alloy/fes_2 thermal battery

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中国有色金属学会会刊：英文版 1999年第3期9卷 530-534页

作者： Liu Zhijian(刘志坚), Duan Wei(段伟), Li Zhiyou(李志友), Huang Yinghua(黄英华) ,Qu Xuanhui(曲选辉),Huang Baiyun(黄伯云) Powder Metallurgy Institute, Central South University of Technology, Changsha 410083, P.R.China  Jinzhu Powder Injection Man Central South Univ of Technology Changsha China

The effects of fes 2 on the discharge characteristics of Li B alloy/fes 2 thermal battery had been studied. Results showed that 2.5%(mass fraction)Li 2O would be needed to rule out the voltage pulse in the first part of discharge curves for the fes 2 powder of small particle size (fes 2 had transformed to Fe (1- x ) S where x =0.024～0.066. The deficiency of the cathode fes 2 would make discharge voltage decrease 0.4 V. In the discharge test at high temperature (600 ℃), the discharge voltage decreased fast with the acceleration of the thermal decomposition of fes 2.

关键词： LiB fes 2 thermal batteries cathode effect

Molecular Beam Epitaxy Growth of Tetragonal fes Films on SrTiO3(001) Substrates

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Chinese Physics Letters 2017年第8期34卷 125-128页

作者：赵琨林海城黄万通胡小鹏陈曦薛其坤季帅华 State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics Tsinghua University Beijing 100084 Collaborative Innovation Center of Quantum Matter Beijing 100084

We report the successful growth of the tetragonal fes film with one or two unit-cell （UC） thickness on SrTiO33（001） substrates by molecular beam epitaxy. Large lattice constant mismatch with the substrate leads to high density of defects in single-UC fes, while it has been significantly reduced in the double-UC thick film due to the lattice relaxation. The scanning tunneling spectra on the surface of the fes thin film reveal the electronic doping effect of single-UC fes from the substrate. In addition, at the Fermi level, the energy gaps of approximately 1.5？meV are observed in the films of both thicknesses at 4.6？K and below. The absence of coherence peaks of gap spectra may be related to the preformed Cooper-pairs without phase coherence.

关键词： fes UC Substrates Molecular Beam Epitaxy Growth of Tetragonal fes Films on SrTiO3

A ternary fes2/Fe7S8@nitrogen-sulfur co-doping reduced graphene oxide hybrid towards superior-performance lithium storage

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Progress in Natural Science:Materials International 2021年第2期31卷 207-214页

作者： Zhengjun Xie Liming Zhang Li Li Qibo Deng Gaoxue Jiang Jieqiang Wang Bingqiang Cao Yijing Wang School of Materials Science and Engineering University of Jinan School of Mechanical Engineering and National Engineering Research Center for Technological Innovation Method and Tool Hebei University of Technology Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry Nankai University

Iron sulfides are promising anode materials for lithium ion batteries(LIBs) owe to their high theoretical capacity and low cost. However, unsatisfactory electronic conductivity, dissolution of polysulfides, and severe agglomeration during the cycling process limit their applications. To solve these issues, a ternary fes2/Fe7S8@nitrogensulfur co-doping reduced graphene oxide hybrid(fes2/Fe7S8@NSG) was designed and synthesized through a facile hydrolysis-sulfurization strategy, in which the fes2/Fe7S8could be well distributed upon the NSG. The NSG was believed to buffer the volume change and augment the electronic conductivity of the electrode, and the nanodimensional fes2/Fe7S8particles with a diameter of 50–100 nm could shorten the ion-diffusion paths during the lithiation/delithiation process. Benefiting from synergistic contributions from nano-dimensional fes2/Fe7S8and flexible NSG, the fes2/Fe7S8@NSG hybrid displayed a high initial capacity of ～1068 m Ah g-1at 200 mA g-1,good cycling stability(～898 mAh g-1at 500 mA g-1after 200 cycles) and high-rate performance. Further kinetic analysis corroborated that the introduction of NSG boosted the capacitive behavior. Above results indicate the potential applications of fes2/Fe7S8@NSG hybrid in LIBs with low-cost and high energy density.

关键词： fes 2 /Fe 7 S 8 Nitrogen-sulfur co-doping reduced graphene oxide Anode material Li-ion batteries Energy storage

fes固体润滑涂层的结构分析及磨损行为比较

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金属学报 2003年第10期39卷 1031-1036页

作者：王海斗庄大明王昆林刘家浚方晓东李永良清华大学机械工程系北京100084 北京水利水电学校北京100024

新型固体润滑剂PeS涂层的优异减摩耐磨性能与制备工艺密切相关.利用低温离子渗硫和高速火焰喷涂的方法制备了fes固体润滑涂层.在MM-200和QP-100磨损实验机上对比研究了这两种涂层的摩擦磨损行为.利用XRD分析了涂层的相结构,用SEM观察了... 详细信息

新型固体润滑剂PeS涂层的优异减摩耐磨性能与制备工艺密切相关.利用低温离子渗硫和高速火焰喷涂的方法制备了fes固体润滑涂层.在MM-200和QP-100磨损实验机上对比研究了这两种涂层的摩擦磨损行为.利用XRD分析了涂层的相结构,用SEM观察了涂层的表面、截面及磨面形貌,用划痕仪测定了涂层与基体的结合力.结果表明,离子渗硫fes涂层的减摩性和耐磨性更好,而热喷涂层的抗擦伤性更佳,这是两种PeS涂层的组织结构不同所致.

关键词： fes 固体润滑涂层摩擦磨损擦伤