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Emerging catalytic materials for practical lithium-sulfur batteries

Journal of Energy Chemistry 2023年第1期76卷 127-145,I0004页

作者： Fangyi Shi Lingling Zhai Qingqing liu Jingya Yu Shu Ping Lau Bao Yu Xia Zheng-long Xu Department of Industrial and Systems Engineering Department of Applied PhysicsResearch Institute of Advanced Manufacturingthe Hong Kong Polytechnic UniversityHung HomHong Kong SARChina Key Laboratory of Material Chemistry for Energy Conversion and Storage(Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074HubeiChina State Key Laboratory of Ultraprecision Machining Technology the Hong Kong Polytechnic UniversityHung HomHong Kong SARChina Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057GuangdongChina

High-energy lithium-sulfur batteries(LSBs)have experienced relentless development over the past decade with discernible improvements in electrochemical ***,a scrutinization of the cell operation conditions reveals a huge gap between the demands for practical batteries and those in the *** sulfur loading,a high electrolyte/sulfur(E/S)ratio and excess anodes for lab-scale LSBs significantly offset their high-energy *** approach practical LSBs,high loading and lean electrolyte parameters are needed,which involve budding challenges of slow charge transfer,polysulfide precipitation and severe shuttle *** track these obstacles,the exploration of electrocatalysts to immobilize polysulfides and accelerate Li-S redox kinetics has been widely ***,this review aims to survey state-of-the-art catalytic materials for practical LSBs with emphasis on elucidating the correlation among catalyst design strategies,material structures and electrochemical *** also statistically evaluate the state-of-the-art catalyst-modified LSBs to identify the remaining discrepancy between the current advancements and the real-world *** closing,we put forward our proposal for a catalytic material study to help realize practical LSBs.

关键词： Lithium-sulfur battery Catalytic materials High sulfur loading Lean electrolyte

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Prognostic value of time-varying dead space estimates in mechanically ventilated patients with acute respiratory distress syndrome

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Journal of Intensive Medicine 2024年第2期4卷 187-193页

作者： Lianlian Jiang Hui Chen Jianfeng Xie Ling liu Yi Yang Jiangsu Provincial Key Laboratory of Critical Care Medicine Department of Critical Care MedicineZhongda HospitalSchool of MedicineSoutheast UniversityNanjingJiangsuChina Department of Critical Care Medicine The First Affiliated Hospital of Soochow UniversitySoochow UniversitySuzhouJiangsuChina

Background The dead space fraction(VD/VT)has proven to be a powerful predictor of higher mortality in acute respiratory distress syndrome(ARDS).However,its measurement relies on expired carbon dioxide,limiting its widespread application in clinical *** estimates employing routine variables have been found to be reliable substitutes for direct measurement of VD/*** this study,we evaluated the prognostic value of these dead space estimates obtained in the first 7 days following the initiation of *** This retrospective observational study was conducted using data from the Chinese database in intensive care(CDIC).Eligible participants were adult ARDS patients receiving invasive mechanical ventilation while in the intensive care unit between 1st January 2014 and 31st March *** collected data during the first 7 days of ventilation to calculate various dead space estimates,including ventilatory ratio(VR),corrected minute ventilation(V_(Ecorr)),VD/VT(Harris–Benedict),VD/VT(Siddiki estimate),and VD/VT(Penn State estimate)longitudinally.A time-dependent Cox model was used to handle these time-varying *** A total of 392 patients(median age 66[interquartile range:55–77]years,median SOFA score 9[interquartile range:7–12])were finally included in our analysis,among whom 132(33.7%)patients died within 28 days of ***(hazard ratio[HR]=1.04 per 0.1 increase,95%confidence interval[CI]:1.01 to 1.06;P=0.013),V_(Ecorr)(HR=1.08 per 1 increase,95%CI:1.04 to 1.12;P1.3,V_(Ecorr)>7.53,a

关键词： Acute respiratory distress syndr ome Mechanical ventilation Dead space 28-day mortality

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Integration of morphology and electronic structure modulation on cobalt phosphide nanosheets to boost photocatalytic hydrogen evolution from ammonia borane hydrolysis

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Green Energy & Environment 2024年第2期9卷 333-343页

作者： Chao Wan Yu Liang liu Zhou Jindou Huang Jiapei Wang Fengqiu Chen Xiaoli Zhan Dang-guo Cheng School of Chemistry and Chemical Engineering Anhui Province Key Laboratory of Coal Clean Conversion and High Valued UtilizationAnhui University of TechnologyMa'anshan243002China College of Chemical and Biological Engineering Zhejiang UniversityZhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology38 Zheda RoadHangzhou310027China Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission Key Laboratory of Photosensitive Materials&Devices of Liaoning ProvinceSchool of Physics and Materials EngineeringDalian Nationalities University 18 Liaohe West RoadDalian116600China Institute of Zhejiang University-Quzhou 78 Jiuhua Boulevard NorthQuzhou324000China Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou University213164China

The controllable and safe hydrogen storage technologies are widely recognized as the main bottleneck for the accomplishment of sustainable hydrogen *** borane(AB)has regarded as a competitive candidate for chemical hydrogen ***,developing efficient yet high-performance catalysts towards hydrogen evolution from AB hydrolysis remains an enormous ***,cobalt phosphide nanosheets are synthesized by a facile salt-assisted along with low-temperature phosphidation strategy for simultaneously modulating its morphology and electronic structure,and function as hydrogen evolution ***,the Co_(2)P nanosheets display extraordinary performance with a record high turnover frequency of 44.9 min^(-1),outperforming most of the noble-metal-free catalysts reported to *** remarkable performance is attributed to its desired nanosheets structure,featuring with high specific surface area,abundant exposed active sites,and short charge diffusion *** findings provide a novel strategy for regulating metal phosphides with desired phase structure and morphology for energy-related applications and beyond.

关键词： Ammonia borane Hydrogen generation Hydrolysis Cobalt phosphide nanosheets Photocatalysis

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Investigating the relationship between intracranial atherosclerotic plaque remodelling and diabetes using high-resolution vessel wall imaging

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World Journal of Diabetes 2024年第1期15卷 72-80页

作者： Yong-Qian Mo Hai-Yu Luo Han-Wen Zhang Yu-Feng liu Kan Deng Xiao-Lei liu Biao Huang Fan Lin Department of Radiology Peking University Shenzhen HospitalShenzhen 518000Guangdong ProvinceChina Department of Ultrasound Peking University Shenzhen HospitalShenzhen 518000Guangdong ProvinceChina The Second School of Clinical Medicine Southern Medical UniversityGuangzhou 510282Guangdong ProvinceChina Department of Radiology The First Affiliated Hospital of Shenzhen UniversityHealth Science CenterShenzhen Second People’s HospitalShenzhen 518036Guangdong ProvinceChina Research Department Philips HealthcareGuangzhou 518000Guangdong ProvinceChina Department of Radiology Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510000Guangdong ProvinceChina

BACKGROUND Intracranial atherosclerosis,a leading cause of stroke,involves arterial plaque *** study explores the link between plaque remodelling patterns and diabetes using high-resolution vessel wall imaging(HR-VWI).AIM To investigate the factors of intracranial atherosclerotic remodelling patterns and the relationship between intracranial atherosclerotic remodelling and diabetes mellitus using *** Ninety-four patients diagnosed with middle cerebral artery or basilar artery INTRODUCTION Intracranial atherosclerotic disease is one of the main causes of ischaemic stroke in the world,accounting for approx-imately 10%of transient ischaemic attacks and 30%-50%of ischaemic strokes[1].It is the most common factor among Asian people[2].The adaptive changes in the structure and function of blood vessels that can adapt to changes in the internal and external environment are called vascular remodelling,which is a common and important pathological mechanism in atherosclerotic diseases,and the remodelling mode of atherosclerotic plaques is closely related to the occurrence of *** remodelling(PR)is an outwards compensatory remodelling where the arterial wall grows outwards in an attempt to maintain a constant lumen *** a long time,it was believed that the degree of stenosis can accurately reflect the risk of ischaemic stroke[3-5].Previous studies have revealed that lesions without significant luminal stenosis can also lead to acute events[6,7],as summarized in a recent meta-analysis study in which approximately 50%of acute/subacute ischaemic events were due to this type of lesion[6].Research[8,9]has pointed out that the PR of plaques is more dangerous and more likely to cause acute ischaemic *** studies[10-13]have found that there are specific vascular remodelling phenomena in the coronary and carotid arteries of diabetic ***,due to the deep location and small lumen of intracranial arteries and limitations of i

关键词： High-resolution vessel wall imaging Intracranial atherosclerosis Vascular remodelling Magnetic resonance imaging

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心血管治疗类医疗器械非劣效性试验特点及界值设置的系统评价

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中国循证医学杂志 2024年第3期24卷 288-294页

作者：冯堃郭琼钟文涛刘悦刘宇琪冷柔菲许译涵顾先林龙囿霖杜亮李正赤黄进四川大学华西医院中国循证医学中心成都610041 四川大学华西医院医疗器械监管研究与评价中心成都610041 四川大学华西医院华西期刊社成都610041 四川大学华西公共卫生学院成都610041 四川大学华西医院医学人文教育中心成都610041 四川大学华西医院医院管理研究所成都610041

目的系统评价心血管领域以医疗器械为干预的非劣效性试验,调查其试验特征和界值设置情况。方法计算机检索PubMed、Embase、CENTRAL数据库,搜集心血管领域医疗器械类的非劣效性试验,检索时限均为建库至2023年7月26日。由2名研究者独立筛... 详细信息

目的系统评价心血管领域以医疗器械为干预的非劣效性试验,调查其试验特征和界值设置情况。方法计算机检索PubMed、Embase、CENTRAL数据库,搜集心血管领域医疗器械类的非劣效性试验,检索时限均为建库至2023年7月26日。由2名研究者独立筛选文献、提取资料后,对纳入研究的基本特征、非劣效性试验特征和界值特征进行报告。研究使用Excel 2020和R 4.2.1软件进行分析。结果共纳入214篇研究,其中167篇(78.0%)干预为冠状动脉支架,试验以双臂设计为主(92.9%),多采用非劣效性绝对界值(96.7%)作为非劣效性的判定依据。150篇(70.1%)研究基于预估的对照组效应值确定非劣效性界值,其中33篇(15.4%)研究未报告预估的对照组效应值来源。非劣效性试验终点结局指标多样且界值设置差异较大,靶病变失败率(2.1%~8.6%)、靶血管失败率(2.5%~19.6%)和主要心血管不良事件发生率(2.1%~10.0%)是研究数量最多的三项定性指标,晚期管腔丢失(0.1~0.4 mm)是研究数量最多的定量指标。所有指标的非劣效性绝对界值转化为相对界值后,范围为1.20~3.67。结论心血管领域医疗器械类的非劣效性试验对相同的结局指标设置的非劣效性界值差异较大,界值设置依据报告不足。

关键词：治疗类医疗器械心血管领域医疗器械非劣效性试验非劣效性界值系统评价

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沙棘副产品的饲用价值评定及其提取物抑菌效果研究

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饲料研究 2024年第3期47卷 85-89页

作者：宁可黄建智任智力刘士哲王千龙盛月云塔里木大学动物科学与技术学院新疆阿拉尔843300 塔里木畜牧科技兵团重点实验室新疆阿拉尔843300

研究旨在探究沙棘副产品的营养价值及其提取物对大肠杆菌的抑菌效果。试验采用亚硝酸钠-硝酸铝法测定黄酮含量,醇提法和水提法提取沙棘副产品活性物质,使用滤纸片法、打孔法、肉汤稀释法研究沙棘副产品提取物对大肠杆菌的抑菌效果。结... 详细信息

研究旨在探究沙棘副产品的营养价值及其提取物对大肠杆菌的抑菌效果。试验采用亚硝酸钠-硝酸铝法测定黄酮含量,醇提法和水提法提取沙棘副产品活性物质,使用滤纸片法、打孔法、肉汤稀释法研究沙棘副产品提取物对大肠杆菌的抑菌效果。结果表明,沙棘副产品干物质(DM)含量为97.98%,灰分(Ash)含量为3.41%,粗蛋白(CP)含量为12.87%,粗脂肪(EE)含量为22.48%。随着沙棘副产品添加量的增加,产气量呈现递减的趋势。醇提法和水提法中常量肉汤稀释法抑菌效果最好;在醇提法中滤纸片法的抑菌效果良好,其抑菌圈为14.6 mm;水提法中滤纸片法无明显抑菌圈;打孔法在醇提法与水提法中均不明显。研究表明,沙棘副产品营养价值丰富,醇提法提取的沙棘副产品活性提取物比水提法对大肠杆菌具有更明显的抑制效果。

关键词：沙棘副产品营养价值活性提取物抑菌作用

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The direct synthesis of Ni/SAPO-11 hydroisomerization catalyst via a novel two-step crystallization strategy

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Petroleum Science 2022年第5期19卷 2448-2459页

作者： Wei-long Zhan Yu-Chao Lyu Xin-Mei liu Lei Fan Fu-Rang Li Ye Yang State Key Laboratory of Heavy Oil Processing China University of PetroleumQingdao266580China College of Chemical Engineering China University of PetroleumQingdao266580China

The Ni/SAPO-11 catalyst used for n-hexane hydroisomerization was prepared via a novel two-step crystallization *** involves introduction of nickel salt into the pre-crystalized system of SAPO-11 by grinding followed by a second crystallization *** extra solvent is introduced during the whole synthesis procedure which reduces waste liquid emissions *** importantly,interaction between nickel and support is effectively regulated by the novel method to achieve a well dispersed nickel species and inhibit formation of inert nickel spinel *** environments of framework Si are tuned to enhance surface acidity of the Ni/SAPO-11 *** also shows smaller particle size which favors fast diffusion of reactants and *** into the two-step crystallization indicate that accumulation of SAPO-11 precursors in the pre-crystallization stage,pH regulation by nickel salt and structural directing effect of Ni2+during the second crystallization period account for the rapid crystal growth and smaller particle size of the Ni/SAPO-11 *** the unique features endow the Ni/SAPO-11 catalyst higher activity and isomers selectivity than the Pt/SAPO-11 catalyst in n-hexane hydroisomerization.

关键词： Two-step crystallization Hydroisomerization catalyst Nickel SAPO-11 Synthesis

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手机依赖对初中生社交焦虑发展的影响:身体羞耻的纵向中介作用

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心理科学 2024年第2期47卷 316-324页

作者：曾奕欣张斌熊思成龙专张安琪曾成伟刘家僖杨莹湖南中医药大学人文与管理学院心理系长沙410208

采用问卷法对339名初中生进行为期1年的3次追踪,旨在考察初中生手机依赖、身体羞耻和社交焦虑的发展趋势,并检验身体羞耻在手机依赖和社交焦虑中的纵向中介作用机制。结果发现,初中生手机依赖、身体羞耻和社交焦虑均呈稳步上升趋势;手... 详细信息

采用问卷法对339名初中生进行为期1年的3次追踪,旨在考察初中生手机依赖、身体羞耻和社交焦虑的发展趋势,并检验身体羞耻在手机依赖和社交焦虑中的纵向中介作用机制。结果发现,初中生手机依赖、身体羞耻和社交焦虑均呈稳步上升趋势;手机依赖的起始水平和发展速率分别对社交焦虑的起始水平和发展速率起直接预测作用;身体羞耻的起始水平和发展速率在手机依赖对社交焦虑发展的影响机制中起完全纵向中介作用。研究结果揭示了初中生社交焦虑及其风险因素的特征和动态作用机制,为合理使用手机、改善身体羞耻和社交焦虑提供了新的干预视角。

关键词：手机依赖身体羞耻社交焦虑潜在增长模型

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TSC prediction and dynamic control of BOF steelmaking with state-of-the-art machine learning and deep learning methods

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Journal of Iron and Steel Research International 2024年第1期31卷 174-194页

作者： Tian-yi Xie Cai-dong Zhang Quan-lin Zhou Zhi-qiang Tian Shuai liu Han-jie Guo Material Technology Research Institute Hesteel GroupShijiazhuang050023HebeiChina Tangsteel Company Hesteel GroupTangshan063611HebeiChina School of Artificial Intelligence Beijing Technology and Business UniversityBeijing100048China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China

Mathematical(data-driven)models based on state-of-the-art(SOTA)machine learning and deep learning models and data collected from 12,786 heats were established to predict the values of temperature,sample,and carbon(TSC)test,including temperature of molten steel(TSC-Temp),carbon content(TSC-C)and phosphorus content(TSC-P),which made prepa-ration for eliminating the TSC *** maximize the prediction accuracy of the proposed approach,various models with different inputs were implemented and compared,and the best models were applied to the production process of a Hesteel Group steelmaking plant in China in the *** number of tabular features(hot metal information,scrap,additives,blowing practices,and preset values)was expanded,and time series(off-gas profiles and blowing practice curves)that could reflect the entire steelmaking process were introduced as ***,the latest machine learning models(LightGBM,CatBoost,TabNet,and NODE)were used to make predictions with tabular features,and the best coefficient of determination R^(2)values obtained for TSC-P,TSC-C and TSC-Temp predictions were 0.435(LightGBM),0.857(Cat-Boost)and 0.678(LightGBM),respectively,which were higher than those of classic models(backpropagation and support vector machine).Then,making predictions was performed by using SOTA time series regression models(SCINet,DLinear,Informer,and MLSTM-FCN)with original time series,SOTA image regression models(NesT,CaiT,ResNeXt,and GoogLeNet)with resized time series,and the proposed Concatenate-Model and Parallel-Model with both tabular features and time *** optimization and comparisons,it was finally determined that the Concatenate-Model with MLSTM-FCN,SCINet and Informer as feature extractors performed the best,and its R^(2)values for predicting TSC-P,TSC-C and TSC-Temp reached 0.470,0.858 and 0.710,*** field test accuracies for TSC-P,TSC-C and TSC-Temp were 0.459,0.850 and 0.685,respectively.A related importance analysis was carri

关键词： BOF steelmaking In-blow prediction TSC test Machine learning Deep learning Field application

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Hydrometallurgical recovery of lithium carbonate and iron phosphate from blended cathode materials of spent lithium-ion battery

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Rare Metals 2024年第3期43卷 1275-1287页

作者： Shao-Le Song Run-Qing liu Miao-Miao Sun Ai-Gang Zhen Fan-Zhen Kong Yue Yang School of Minerals Processing and Bioengineering Central South UniversityChangsha410083China Zhejiang Tianneng New Materials Co. Ltd.Huzhou313103China

The recycling of cathode materials from spent lithium-ion battery has attracted extensive attention,but few research have focused on spent blended cathode *** reality,the blended materials of lithium iron phosphate and ternary are widely used in electric vehicles,so it is critical to design an effective recycling *** this study,an efficient method for recovering Li and Fe from the blended cathode materials of spent LiFePO_(4)and LiNi_(x)Co_(y)Mn_(1-x-y)O_(2)batteries is ***,87%A1 was removed by alkali ***,91.65%Li,72.08%Ni,64.6%Co and 71.66%Mn were further separated by selective leaching with H_(2)SO_(4)and H_(2)O_(2).Li,Ni,Co and Mn in solution were recovered in the form of Li_(2)CO_(3)and hydroxide ***,98.38%Fe was leached from the residue by two stage process,and it is recovered as FePO_(4)·2H_(2)O with a purity of 99.5%by *** and P were present in FePO_(4)·2H_(2)O in amounts of 28.34%and 15.98%,***,the drift and control of various components were discussed,and cost-benefit analysis was used to assess the feasibility of potential application.

关键词： Spent lithium-ion battery Blended cathode materials Recovery Lithium carbonate Iron phosphate

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