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Room-temperature extraction of individual elements from charged spent LiFePO_(4)batteries

Rare Metals 2022年第5期41卷 1595-1604页

作者： Mei-Cen Fan yun Zhao yu-Qiong Kang John Wozny Zheng Liang jun-Xiong Wang Guang-Min Zhou Bao-Hua Li Naser Tavajohi Fei-yu Kang Shenzhen Key Laboratory on Power Battery Safety and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate School(SIGS)Shenzhen 518055China Department of Chemistry and Biochemistry Northern Illinois UniversityDekalb 60115USA School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesShanghai Jiao Tong UniversityShanghai 200240China Shenzhen Geim Graphene Center Tsinghua-Berkeley Shenzhen Institute and Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Department of Chemistry Umea UniversityUmeii 90187Sweden

Recycling millions of metric tons of spent LiFePO_(4) batteries would benefit human health while reducing resource depletion and environmental ***,recovering individual elements from the spent batteries without generating waste is ***,we present a distinctive approach for recycling spent LiFePO_(4) batteries at room temperature,where water is the only leaching agent ***_(4) and lithium intercalated graphite act as a precursor material for selectively extracting lithium,iron,and phosphorus through charging the LiFePO_(4) batteries to the delithiated *** solution extracted Fe from FePO_(4) within 30 min and regenerated without consumption,similar to a *** the optimal leaching conditions(1 mol·L^(-1) NaOH,0.5 h,NaOH/Fe molar ratio of 4.5),Fe and P leaching efficiencies achieved 89.1%and 99.2%,*** methodology reflected in this research reduced the material cost per kg cathode material to a fraction of previously published reports,only occupies 6.13%of previous *** addition,the method improved the battery recycling revenue calculated by the EverBatt model by 2.31 times and 1.94 times over pyrometallurgical and hydrometallurgical *** proposed method allows for the convenient recovery of the elemental components of spent LiFePO_(4) batteries.

关键词： Battery recycling Spent LiFePO_(4)batteries Charged batteries FePO_(4) Lithiated anode

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Seismogenic tectonics of the Qian-Gorlos earthquake in Jilin Province,China

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Earthquake Science 2016年第2期29卷 93-103页

作者： jun Shen Bo Shao Xiao-hui yu Yang yu Gao Qi Mei Deng Hanwen Zhang Institute of Disaster Prevention Langfang 065201China Institute of Geology China Earthquake AdministrationBeijing 100029China Lanzhou Institute of Seismology China Earthquake AdministrationLanzhou 730000China

The Qian-Gorlos earthquake, which occurred in the Songliao basin in Jilin Province in 1119 AD, was the largest earthquake to occur in NE China before the 1975 haicheng earthquake. Based on historical records and surface geological investigations, it has been suggested previously that the earthquake epicenter was in the Longkeng area. However, other workers have considered the epicenter to be in the Halamaodu area based on the landslides and faults found in this region. No seismogenic structure has yet been found in either of these two *** tried to detect active faults in the urban areas of Songyuan City, where the historical earthquake was probably located. One of the aims of this work was to clarify the seismogenic structure so that the seismic risk in the city could be more accurately evaluated. The area was investigated and analyzed using information from remote sensing and topographic surveys, seismic data from petroleum exploration, shallow seismic profiles, exploratory geological trenches on fault outcrops, and borehole data. The geophysical data did not reveal any evidence of faults cutting through Cretaceous or later strata under the Longkeng scarp, which has been suggested to be structural evidence of the Qian-Gorlos earthquake. The continuous fault surfaces on the back edge of terraces in theHalamaodu area stretch for [3.5 km and were probably formed by tectonic activity. However, results from shallow seismic profiles showed that the faults did not extend downward, with the corresponding deep structure being identified as a gentle kink band. A new reverse fault was found to the west of the two suggested epicenters, which presented as a curvilinear fault extending to the west, and was formed by two groups of NE- and NW-trending faults intersecting the Gudian fault. Three-dimensional seismic and shallow seismic data from petroleum exploration revealed its distinct spatial distribution and showed that the fault may cut through Late Quaternary strata. E

关键词： Qian-Gorlos earthquake Historical earthquake Seismogenic structure

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颅内动脉瘤单纯PED治疗后瘤内血流动力学变化及其与动脉瘤闭塞的关系

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中国临床神经外科杂志 2024年第4期29卷 198-203,208页

作者：冯俊强尤为唐宇迪李佑祥汪阳首都医科大学附属北京朝阳医院神经外科北京100020 北京市神经外科研究所/首都医科大学附属北京天坛医院脑血管病中心北京100070

目的探讨颅内动脉瘤单纯Pipeline栓塞装置(PED)治疗后瘤内血流动力学改变及其与动脉瘤闭塞的相关性。方法回顾性分析2016年1月至2020年12月单纯使用PED治疗的63例(68个动脉瘤)颅内动脉瘤的临床资料和DSA影像资料。选择动脉瘤瘤腔中心和... 详细信息

目的探讨颅内动脉瘤单纯Pipeline栓塞装置(PED)治疗后瘤内血流动力学改变及其与动脉瘤闭塞的相关性。方法回顾性分析2016年1月至2020年12月单纯使用PED治疗的63例(68个动脉瘤)颅内动脉瘤的临床资料和DSA影像资料。选择动脉瘤瘤腔中心和距离动脉瘤瘤颈近心端2 cm处的载瘤动脉(参考点)为感兴趣区,使用基于Python的自研程序对DSA数据进行血管造影参数成像(API)分析,获取时间-密度曲线,计算血液动力学参数及其变化率(△),包括平均通过时间(MTT)、达峰时间(TTP)、峰高(PH)、曲线下面积(AUC)、半峰全宽(FWHM)。结果68个动脉瘤共置入68个PED,术后6个月影像随访显示动脉瘤完全闭塞52个(76.5%),未完全闭塞16个(23.5%)。API分析显示,术后参考点FWHM显著延长(P0.05)。术后动脉瘤内TTP、FWHM和MTT分别延长了22.8%、36.0%和25.0%,而闭塞动脉瘤内TTP、FWHM和MTT分别延长了43.9%、53.0%和38.3%。ROC曲线分析显示,ΔMTT、ΔTTP、ΔFWHM对术后6个月动脉瘤的闭塞情况具有一定的预测价值,而且联合预测效果更好。结论颅内动脉瘤单纯PED治疗后闭塞结果和术后瘤内血流的减缓相关。API技术对真实的血流效应有良好的反馈,可以定量表征血流信息变化,可以预测PED治疗后远期动脉瘤的闭塞情况。

关键词：颅内动脉瘤血管内治疗 Pipeline栓塞装置血流动力学

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抑郁症网络团体认知行为治疗的单盲随机对照研究

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中国心理卫生杂志 2024年第8期38卷 660-665页

作者：韩建芳白延欣宝继英马军麻钰超黄悦勤于东升内蒙古自治区脑科医院内蒙古自治区精神卫生中心呼和浩特010010 北京大学第六医院北京大学精神卫生研究所国家卫生健康委员会精神卫生学重点实验室(北京大学)国家精神心理疾病临床医学研究中心(北京大学第六医院)北京100083

目的:探讨网络团体认知行为治疗(IGCBT)对抑郁症(MDD)患者抑郁情绪、焦虑情绪的疗效。方法:招募MDD患者80例,随机分为IGCBT联合药物治疗组和单纯药物治疗对照组。在基线、治疗4周和8周后分别三次采用汉密尔顿抑郁量表(HAMD)、汉密尔顿... 详细信息

目的:探讨网络团体认知行为治疗(IGCBT)对抑郁症(MDD)患者抑郁情绪、焦虑情绪的疗效。方法:招募MDD患者80例,随机分为IGCBT联合药物治疗组和单纯药物治疗对照组。在基线、治疗4周和8周后分别三次采用汉密尔顿抑郁量表(HAMD)、汉密尔顿焦虑量表(HAMA)进行盲法评估。结果:联合治疗组4周末HAMD、HAMA以及8周末HAMA的有效率均高于对照组(均P<0.05),联合治疗组、对照组在4周末、8周末时HAMD总分、HAMA总分均低于基线得分(均P<0.001),在基线、4周末、8周末,联合治疗组HAMD总分、HAMA总分均低于对照组得分(均P<0.01)。结论:本研究提示,网络团体认知行为治疗联合抗抑郁药物治疗比单纯使用药物治疗对患者抑郁情绪、焦虑情绪的缓解效果更好,且对焦虑情绪改善效果更佳。

关键词：网络团体认知行为治疗抑郁症抑郁焦虑

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长寿命电子设备加速寿命试验技术研究

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环境技术 2024年第1期42卷 6-8,18页

作者：唐少波王田宇宋宇康王家鑫谢军章华亮国营长虹机械厂桂林541003

针对工程实际中长寿命电子设备寿命评估困难的问题,基于派克(Peck)模型建立电子设备寿命消耗与温、湿度复合应力的物理化学关系,获得电子设备在加速试验应力下相对于正常工作环境下的加速因子,结合指数分布以及可靠性鉴定和验收试验理论... 详细信息

针对工程实际中长寿命电子设备寿命评估困难的问题,基于派克(Peck)模型建立电子设备寿命消耗与温、湿度复合应力的物理化学关系,获得电子设备在加速试验应力下相对于正常工作环境下的加速因子,结合指数分布以及可靠性鉴定和验收试验理论,利用加速因子建立寿命消耗等效折算关系,计算电子设备加速寿命试验时间,通过提高经受的应力量级,刺激薄弱环节,提高试验效率,在较短的试验时间内验证了电子设备寿命满足研制的可靠性要求。

关键词：派克模型加速因子寿命

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MOF-Transformed In_(2)O_(3-x)@C Nanocorn Electrocatalyst for Efficient CO_(2)Reduction to HCOOH

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Nano-Micro Letters 2022年第10期14卷 219-234页

作者： Chen Qiu Kun Qian jun yu Mingzi Sun Shoufu Cao Jinqiang Gao Rongxing yu Lingzhe Fang Youwei Yao Xiaoqing Lu Tao Li Bolong Huang Shihe Yang Guangdong Key Lab of Nano-Micro Material Research School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate SchoolShenzhen 518055People’s Republic of China Department of Chemistry and Biochemistry Northern Illinois UniversityDeKalbIL 60115USA Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China School of Materials Science and Engineering China University of PetroleumQingdaoShandong 266580People’s Republic of China Shenzhen International Graduate School Tsinghua UniversityShenzhenPeople’s Republic of China X-Ray Science Division and Joint Center for Energy Storage Research Argonne National LaboratoryLemontIL 60439USA Institute of Biomedical Engineering Shenzhen Bay LaboratoryShenzhen 518107People’s Republic of China

For electrochemical CO_(2) reduction to HCOOH,an ongoing challenge is to design energy efficient electrocatalysts that can deliver a high HCOOH current density(JHCOOH)at a low *** oxide is good HCOOH production catalyst but with low *** this work,we report a unique corn design of In_(2)O_(3-x)@C nanocatalyst,wherein In_(2)O_(3-x)nanocube as the fine grains dispersed uniformly on the carbon nanorod cob,resulting in the enhanced *** performance is achieved with 84%Faradaic efficiency(FE)and 11 mA cm^(−2)JHCOOH at a low potential of−0.4 V versus *** the current density of 100 mA cm^(−2),the applied potential remained stable for more than 120 h with the FE above 90%.Density functional theory calculations reveal that the abundant oxygen vacancy in In_(2)O_(3-x) has exposed more In^(3+) sites with activated electroactivity,which facilitates the formation of HCOO**** X-ray absorp-tion spectroscopy also confirms In^(3+) as the active site and the key intermediate of HCOO*during the process of CO_(2) reduction to HCOOH.

关键词： CO_(2)reduction Indium oxide Formate Corn design Active sites

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Effect of Nb Content on the Hot Deformation Behavior of S460ML Steel

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Acta Metallurgica Sinica(English Letters) 2019年第4期32卷 526-534页

作者： yu-Cheng Zhang Zhen-Sheng Meng Yang Meng Xin-Hua Ju Zhong-Hang Jiang Ze-jun Ma Research Institute of Technology of Shougang Group Co.Ltd.

The hot deformation behavior of S460 ML steel with different Nb contents was investigated by single-pass compression experiment on the Gleeble-1500 thermo-machine simulator at deformation temperatures ranging from 900 to 1200 ℃ and strain rates from 0.1 to 5.0 s^(-1). The critical strain of dynamic recrystallization(DRC) under different conditions was determined by using working hardening rate-strain curves. The relationship between critical strain and peak strain of DRC was discussed. By means of regression analysis method, the hot deformation activation energy of steels and the mathematical model for predicting DRC critical strain were calculated and established, respectively. The results showed that DRC occurred during hot deformation. As the deformation temperature increased and strain rate decreased, the critical strain of DRC decreased. The critical strain(εc) showed linear relationship with peak strain(εp). As Nb content increased,the needed deformation temperature for occurring DRC increased, while the needed strain rate for it decreased. The activation energy for hot deformation of S460 ML steel increased with increasing Nb content.

关键词： Dynamic recrystallization Critical strain Nb content Deformation temperature Strain rate Hot deformation

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轴上物点经双凸对称球面透镜成像偏差分析

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大学物理 2024年第7期43卷 81-84页

作者：于晨曦冯立峰孙文军哈尔滨师范大学物理与电子工程学院黑龙江哈尔滨150025

为确定轴上物点经双凸对称球面透镜所成的像与理想像的差异,便于检验成像器件能否达到实际成像应用要求,本文利用解析几何方法推导了轴上物点经双凸对称球面透镜的成像区域边界方程,计算分析了入射光线倾角及透镜参数对成像区域的影响.... 详细信息

为确定轴上物点经双凸对称球面透镜所成的像与理想像的差异,便于检验成像器件能否达到实际成像应用要求,本文利用解析几何方法推导了轴上物点经双凸对称球面透镜的成像区域边界方程,计算分析了入射光线倾角及透镜参数对成像区域的影响.结果表明当轴上物点位置与透镜曲率半径确定时,如物距取30.0 cm、曲率半径为15.0 cm、透镜的半厚度≤0.300 cm时,表示成像区域边界轴上像点偏离理想像点程度的轴上偏差小于等于2.02%;当轴上物点位置与透镜参数确定,如物距取30.0 cm、透镜半通光孔径为3.00 cm、入射光线倾角≤4.85°时,表示成像区域边界像点离轴程度的离轴偏差小于等于10.0%.此方法同样可以分析其他类型像差,理论推导与计算结果为相关后续研究提供了理论支持与技术借鉴.

关键词：几何光学双凸球面透镜理想成像成像区域

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Micropollutant removal and disinfection byproduct control by sequential peroxymonosulfate-UV treatment in water: A case study with sulfamethoxazole

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Journal of Environmental Sciences 2022年第7期34卷 141-150页

作者： Tian-Yang Zhang Yong-Shan Lu Zhen-Ning Luo Wen-jun Sun Bin Xu Chen-Yan Hu yu-Lin Tang Zheng-yu Dong Xiao-Meng Ren State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Yangtze Water EnvironmentMinistry of EducationCollege of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China School of Environment Tsinghua UniversityBeijing 100084China College of Environmental and Chemical Engineering Shanghai University of Electric PowerShanghai 200090China PLA Naval Medical Center Shanghai 200433China

UV/peroxymonosulfate(UV/PMS) advanced oxidation process has attracted significant attention for removal of micropollutants in water. However, during practical water treatment applications, the PMS treatment must be performed before the UV treatment to achieve full contact. In this study, sulfamethoxazole(SMX) was selected as the target micropollutant. Four different operational approaches, including UV alone, PMS alone, simultaneous UV/PMS and sequential PMS-UV, were compared for their differences in SMX removal and disinfection by-product(DBP) formation potentials during chlorine-driven disinfection. Among the four approaches, UV/PMS and PMS-UV achieved over 90% removal efficiencies for SMX without substantial differences. For raw water, the trichloronitromethane(TCNM) formation potential after treatment with PMS-UV was lower than that after UV/PMS treatment. The time interval over which the PMS-UV process was conducted had little effect on the final removal efficiency for SMX. However, a brief(5 min) pre-PMS treatment significantly reduced the TCNM formation potential and the genotoxicity from DBPs. The formation risk for TCNM during chlorination increased markedly with increasing PMS dosages, and the appropriate dosage under these experimental conditions was suggested to be 0.5–1.0 mmol/L. Under alkaline conditions, PMS-UV treatment can enhance SMX degradation as well as dramatically reduced the formation potentials for haloketones, haloacetonitriles and halonitromethanes. This study suggests that proper optimization of UV/PMS processes can remove SMX and reduce its DBP formation.

关键词： Peroxymonosulfate-UV(PMS-UV) Sulfamethoxazole(SMX) Disinfection by-products(DBPs) Operational approaches Water treatment

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Components of Essential Oils in Different Parts of Daucus carota L. var. sativa Hoffm

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Chemical Research in Chinese Universities 2006年第3期22卷 328-334页

作者： WU Yin XU Ze-Li LI Hong-jun MENG Xiang-ying BAO Yong-li LI yu-xin Research Center of Agriculture and Medicine C ene Engineering of Ministry of Education Institute of Genetics and Cytology Northeast Normal University Changchun 130024 P. R. China China-Japan Union Hospital Jilin University Changchun 130033 P. R. China

The components of the essential oils obtained from different parts of Daacus carota ***. saliva Hoffm were analyzed. The percentages of the essential oils extracted are 0. 27% （ mL/100 g material） for the flowers, 0. 0/% for the stems and leaves and 0. 01% for the roots. Fifty-four, Sixty-six and Thirty-three compounds were,respectively, separated and identified from the flowers, the stems and leaves and the roots, among which unsaturated alkene compounds are thirty-nine, thirty-nine and twenty-one, respectively, accounting in turn for up to 90. 21%, 90. 49% and 72. 65% of the total essential oils. Because alkene compounds have double bonds that are easily oxidized, it can he inferred that the components of the essential oils in the different parts of Daucus carota L. var. saliva Hoffm should show an activity of the antioformation of free radicals to some extent.

关键词： Daucus carota L. var. sativa Hoffm Essential oil. GC/MS

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