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Three-in-one LaNiO_(3) functionalized separator boosting electrochemical stability and redox kinetics for high-performance Li-S battery

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Journal of Energy Chemistry 2023年第7期82卷 581-591,I0013页

作者： Weiyu Wang Mingxiu Hou Fangqian Han Di Yu Jie Liu Qian Zhang Fengli Yu Lei Wang Maoshuai He State Key Laboratory Base of Eco-chemical Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina College of Chemistry and Molecular Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina College of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina Weifang Key Laboratory of Green Processing of Separator for Chemical Power Sources School of Chemistry and EngineeringWeifang Vocational CollegeWeifang 261108ShandongChina Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection College of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdao 266042ShandongChina

The lithium-sulfur(Li-S)battery,as one of the energy storage devices,has been in the limelight due to its high theoretical energy ***,the poor redox kinetics and the"shuttle effect"of polysulfides severely restrict the use of Li-S batteries in practical ***,a novel bimetallic LaNiO_(3) functional material with high electrical conductivity and catalytic property is prepared to act as a high-efficiency polysulfide shuttling *** three LaNiO_(3) samples with different physical/chemical characteristics are obtained by controlling the calcination *** conjunction with the high electrical conductivity and excellent catalytic properties of the as-prepared materials,the appropriate chemisorption toward polysulfides offers great potential to enhance electrochemical stability for highperformance Li-S ***,the Li-S cell with the separator modified by such functional material gives a specific capacity of 658 mA h g^(-1) after 500 cycles at a high current density of 2 *** with high sulfur loading of 6.05 mg cm^(-2),the Li-S battery still exhibits an areal specific capacity of 2.81 m A h cm^(-2)after 150 *** work paves a new avenue for the rational design of materials for separator modification in high-performance Li-S batteries.

关键词： Li-S battery Functional separator Catalytic property Electrochemical stability Redox kinetics

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Photocatalytic oxidation of methane to methanol over zinc titanate supported silver catalysts

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Journal of Rare Earths 2024年第5期42卷 899-906,I0004页

作者： Yuyan Gan Jinbi Huang Qian Lv Yanru Li Lizhi Wu YU Tang Yuanxing Fang Pengfei Zhu Li Tan Institute of Molecule Catalysis and In-Situ/Operando Studies State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou350108China School of Environmental Science and Engineering Shaanxi University of Science and TechnologyXi'an 70021China

The direct activation of methane under mild condition to achieve highly selective of oxygenates is a challenging *** this study,a well dispersed silver supported ZnTiO_(3) catalyst was prepared to achieve selective preparation of methanol from methane and water under mild condition.X-ray diffraction,transmission electron microscopy and X-ray photoelectron spectroscopy characterizations demonstrate that silver species are uniformly dispersed on ZnTiO_(3) surface in the form of metallic silver *** photoelectric characterizations reveal that the addition of silver species enhances light absorption and promotes charge separation of the *** the reaction conditions of 50℃and 3 MPa,the methanol is obtained as the only liquid product over the designed Ag/ZnTiO_(3) catalyst under light *** this photocatalytic process,the holes generated by ZnTiO_(3) activate water to produce intermediate·OH,which further reacts with methane to synthesize *** silver species as co-catalysts extend the light absorption range of ZnTiO_(3) as well as promote charge separation.

关键词： Photocatalytic Methane oxidation Zinc titanate Silver Methanol

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Experimental research on influence mechanism of loading rates on rock pressure stimulated currents

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International Journal of Mining Science and technology 2023年第2期33卷 243-250页

作者： Min Li Zhijun Lin Shiliang Shi Deming Wang Yi Lu He Li Qing Ye Xiaonan Zhang School of Resource Environment and Safety EngineeringHunan University of Science and TechnologyXiangtan 411201China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China School of Safety Engineering China University of Mining and TechnologyXuzhou 221116China

The study of pressure stimulated current(PSC)changes of rocks is significant to monitor dynamic disasters in mines and rock *** existing studies focus on change laws and mechanism of currents generated under the loading of *** electrical and mechanics test system was established in this paper to explore the impacts of loading rates on *** results indicated that PSC curves of different rocks had different change laws under low/high loading *** the loading rate was relatively low,PSC curves firstly changed gently and then increased *** high loading rates,PSC curves experienced the rapid increase stage,gentle increase stage and sudden change *** compressive strength could greatly affect the peak PSC in case of rock *** loading rate was a key factor in average *** low loading rates,the variations of PSCs conformed to the damage charge model of fracture mechanics,while they did not at the fracture *** high loading rates,the PSCs at low stress didn’t fit the model due to the stress impact *** experimental results could provide theoretical basis for the influence of loading rates on PSCs.

关键词： Pressure stimulated current Loading rate Influence mechanism Peak current

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Sample Plan Research of Acceptance Test for Lot-Producing Spacecraft Products 12

Sample Plan Research of Acceptance Test for Lot-Producing Sp...

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12th International Conference on Quality, reliability, Risk, Maintenance, and Safety engineering, QR2MSE 2022

作者： Li, Fangyong Liu, Shouwen Su, Xinming Huang, Shouqing Qin, Taichun Zhou, Yuan Beijing Key Laboratory of Environment and Reliability Test Technology for Aerospace Mechanical and Electrical Products Beijing China Beijing Institute of Spacecraft Environment and Engineering Beijing China

ISBN: (纸本)9781839538360

Lot production of spacecraft products is discussed with the development of commercial aerospace, especially the proposal of LEO communication constellation project, which also brings great challenges to the traditional customized spacecraft development and test program. In order to meet the low-cost and short-duration requirements of the production and delivery process, the idea of sampling inspection is applied to the acceptance test of spacecraft products. The group sampling plan was designed while the feasibility and risk of applying sampling inspection technology to the acceptance test of spacecraft products are discussed. The application of sampling technology can save the test resources, reduce the test duration so that it decreases the cost. But it also brings the risk of not finding all the defectives. The sampling acceptance test method is appropriate for spacecraft products in lot production with high maturity and strong risk tolerance. The research in this paper provides some reference for the test design of spacecraft products in lot production. © 2022 IEEE.

关键词： Acceptance tests

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Effects of persulfate-assisted hydrothermal treatment of municipal sludge on aqueous phase characteristics and phytotoxicity

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Journal of environmental Sciences 2023年第4期126卷 163-173页

作者： Guangchun Shan Weiguang Li Yujie Zhou Shanshan Bao Lin Zhu Wenbing Tan State Key Laboratory of Environmental Criteria and Risk Assessment and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater PollutionChinese Research Academy of Environmental SciencesBeijing 100012China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China Key Laboratory of Water Management and Water Security for Yellow River Basin of Ministry of Water Resources(Under Construction) Yellow River Engineering Consulting Co.LtdZhengzhou 450003China

Hydrothermal technology (HT) has received much attention in recent years as a process to convert wet organic waste into *** aqueous phase (HTAP) produced by this process is still a burden and has become a bottleneck issue for HT process *** this study,we provide the?rst investigation of the HTAP characteristics,phytotoxicity,and their correlation with persulfate (PS)(PS,2.0 mmol/g TS)-assisted municipal sludge *** results showed that PS accelerated the hydrolysis of protein substances and increased the concentration of NH_(4)^(+)by 13.4%to 190.5%and that of PO_(4)^(3-)by 24.2%to 1103.7%in HTAP at hydrothermal temperatures of 120 to 240℃.PS can reduce the phytotoxicity of HTAP by reducing aldehydes,ketones,N heterocyclic compounds,and particle size and by increasing its humi?cation *** maximum values of the root length and biomass of pakchoi(Brassica chinensis L.) seedlings occurred when electrical conductivity was 0.2 mS/cm of *** work provided a new strategy for the selection and design of HTAP management strategies.

关键词： Hydrothermal technology Aqueous phase characteristics Pakchoi Seedlings Phytotoxicity

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Reproductive toxicity of enrofloxacin in Caenorhabditis elegans involves oxidative stress-induced cell apoptosis

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Journal of environmental Sciences 2023年第5期127卷 726-737页

作者： Jiahao Huang Lizi Liao Guowei Wang Zhongkun Du Zhengxing Wu Key Laboratory of Molecular Biophysics Ministry of EducationCollege of Life Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China School of Environmental Ecology and Biological Engineering Wuhan Institute of TechnologyWuhan 430205China Key Laboratory of Green Chemical Engineering Process of Ministry of Education Wuhan 430205China College of Resources and Environment Shandong Agricultural UniversityTaian 271018China

Fluoroquinolone antibiotics(FQs)that persist and bioaccumulate in the environment have aroused people’s great ***,we studied the adverse effects of FQs in soil animals of Caenorhabditis elegans via food-chronically *** result shows *** exposed to FQs exhibited reproductive toxicity with small-brood size and low-egg *** study the underlying mechanism,we conduct a deep investigation of enrofloxacin(ENR),one of the most frequently detected FQs,on nematodes which is one of commonly used animal indicator of soil *** concentration-effect curves simulated by the Hill model showed that the half effect concentrations(EC50)of ENR were(494.3±272.9)μmol/kg and(107.4±30.9)μmol/kg for the brood size and the hatchability,*** gene expression between the control and the ENR-exposure group enriched with the oxidative stress and cell apoptosis *** results together with the enzyme activity in oxidative stress and the cell corpses suggested that ENR-induced reproductive toxicity was related to germ cell apoptosis under oxidative *** risk quotients of some soil and livestock samples were calculated based on the threshold value of EC10 for the egg hatchability(2.65μmol/kg).The results indicated that there was possible reproductive toxicity on the nematodes in certain agricultural soils for the *** study suggested that chronic exposure to FQs at certain levels in environment would induce reproductive toxicity to the nematodes and might reduce the soil sustainability,alarming the environment risks of antibiotics abuse.

关键词： environmental toxicity Nematodes Chronic exposure Oxidative stress response Germ cell apoptosis

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Multiple discharges before leader inception in long air gaps under positive switching impulses

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High Voltage 2023年第1期8卷 111-118页

作者： Xiangen Zhao Juhyeong Lee Gang Liu Lei Jia Yang Liu Junjia He Yaping Du Department of Building Environment and Energy Engineering The Hong Kong Polytechnic UniversityHung HomHong KongChina Department of Mechanical and Aerospace Engineering Utah State UniversityLoganUtahUSA State Key Laboratory of HVDC Transmissions Technology Electric Power Research InstituteChina Southern Power GridGuangzhouChina State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and TechnologyWuhanChina

There are multiple corona bursts before leader inception when the rising rate of the applied voltage or electric field is not sufficiently high enough in long positive *** existing studies,no attention has been paid to whether these corona bursts occur in the same location,and they are mostly considered directly as belonging to the same ***,this paper presents that in a typical rod-plate long air gap,the multiple corona bursts before leader inception are distributed in at least two different locations,and the highest probability of three discharges ***,the discharge occurs with the highest probability in the time sequence‘tip-tip-side-tip-other side’of the electrode in the first five corona *** each discharge,the first corona current is a single,double exponential pulse,while the following corona currents are mostly a superposition of multiple *** above findings are mainly based on experiments in a 1.4 m air gap under positive switching impulses,in which the voltage,current,and high-speed images were recorded ***,based on the experimental results,this paper discusses the effects brought by ignoring the multiple discharges on key parameters of leader inception and makes some suggestions to optimise long spark experiments.

关键词： positive exponential superposition

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Effects of exogenous acylated homoserine lactones on biofilms in biofilters for gaseous toluene treatment

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Frontiers of environmental Science & engineering 2023年第2期17卷 29-38页

作者： Zhuqiu Sun Bairen Yang Marvin Yeung Jinying Xi Environmental Simulation and Pollution Control State Key Joint Laboratory School of EnvironmentTsinghua UniversityBeijing 100084China School of Environmental Science and Engineering Yancheng Institute of TechnologyYancheng 224051China

Biofilters are typical biofilm reactors, and they usually have poor biofilm formation resulting in limited reactor performance. Exogenous acylated homoserine lactones (AHLs) can enhance biofilm formation in many bioreactors based on quorum sensing regulation. However, their effect on biofilm in biofilters utilized for volatile organic compound (VOC) removal is unknown and needs to be investigated. In this study, the effects of the exogenous AHLs on biofilters for gaseous toluene removal were investigated. Analysis of biofilms in biofilters showed that the addition of exogenous AHLs considerably enhanced biofilm growth;the average biofilm concentration increased by 18%. Furthermore, the average biofilm coverage proportions in biofilters with and without exogenous AHLs were 17 % and 13 %, respectively, demonstrating the positive effect of exogenous AHLs on biofilm coverage. In particular, exogenous AHLs promoted the production of extracellular polymeric substances and the microbial adhesive strength of the biofilm. In addition, the exogenous AHLs showed no significant effect on the gaseous toluene removal efficiency of the biofilter. These results show that exogenous AHLs can enhance biofilm formation and can guide the application of exogenous AHLs in VOC biofilters.

关键词： Quorum sensing AHLs Biofilter Biofilm formation

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Multi-model of ammonia nitrogen in aquaculture water based on EM algorithm1

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Journal of Intelligent and Fuzzy Systems 2025年第3期48卷 233-244页

作者： Wang, Wei Xu, Dehao Lv, Jing Rong, Jian He, Donggang Li, Shuangshuang College of Information Engineering Dalian Ocean University Dalian China Key Laboratory of Environment Controlled Aquaculture Ministry of Education China Dalian Key Laboratory of Smart Fisheries Dalian China Dalian Xinyulong Marine Biological Seed Technology Co. Ltd. Dalian China

The factors of water quality in the intensive marine stichopus japonicus aquaculture process are changing with seasons, so water temperature, salinity, pH value and nitrite were selected as auxiliary variables to measure the concentration of ammonia nitrogen. FCM (Fuzzy C-means) algorithm was adopted to classify them. Based on the EM (Expectation Maximization) algorithm, fuzzy sub-models of ammonia nitrogen concentration were constructed around each operating point, and finally the fuzzy sub-models were combined according to the posterior distribution of the characteristics of the sampling data. Based on the data collected at Xinyulong Marine Biological Seed technology Co., Ltd, in Dalian China, the ammonia nitrogen concentration prediction model was tested and verified. © 2025 – IOS Press. All rights reserved.

关键词： Fisheries

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Toxicological responses of A549 and HCE-T cells exposed to fine particulate matter at the air–liquid interface

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environmental Science and Pollution Research 2024年第18期31卷 27375-27387页

作者： Chen, Wankang Ge, Pengxiang Deng, Minjun Liu, Xiaoming Lu, Zhenyu Yan, Zhansheng Chen, Mindong Wang, Junfeng Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment Technology School of Environmental Science and Engineering Nanjing University of Information Science & ampTechnology Nanjing210044 China Ningxia Meteorological Service Center Yinchuan750002 China

Fine particulate matter (PM2.5) can enter the human body in various ways and have adverse effects on human health. Human lungs and eyes are exposed to the air for a long time and are the first to be exposed to PM2.5. The "liquid immersion exposure method" has some limitations that prevent it from fully reflecting the toxic effects of particulate matter on the human body. In this study, the collected PM2.5 samples were chemically analyzed. An air–liquid interface (ALI) model with a high correlation to the in vivo environment was established based on human lung epithelial cells (A549) and immortalized human corneal epithelial cells (HCE-T). The VITROCELL Cloud 12 system was used to distribute PM2.5 on the cells evenly. After exposure for 6 h and 24 h, cell viability, apoptosis rate, reactive oxygen species (ROS) level, expression of inflammatory factors, and deoxyribonucleic acid (DNA) damage were measured. The results demonstrated significant dose- and time-dependent effects of PM2.5 on cell viability, cell apoptosis, ROS generation, and DNA damage at the ALI, while the inflammatory factors showed dose-dependent effects only. It should be noted that even short exposure to low doses of PM2.5 can cause cell DNA double-strand breaks and increased expression of γ-H2AX, indicating significant genotoxicity of PM2.5. Increased abundance of ROS in cells plays a crucial role in the cytotoxicity induced by PM2.5 exposure These findings emphasize the significant cellular damage and genotoxicity that may result from short-term exposure to low levels of PM2.5. © The Author(s) 2024.

关键词： Cell death

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