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Modulated noble metal/2D MOF heterostructures for improved hydrogen storage of MgH_(2)

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Rare Metals 2024年第4期43卷 1672-1685页

作者： Zeng-Yi Li Li-xian Sun Fen Xu Yu-Mei Luo Yong-Peng Xia Sheng Wei Chen-Chen Zhang Ri-Guang Cheng Chao-feng Ye Meng-Yuan Liu Ju-Lan Zeng zhong Cao Hong-Ge Pan School of Material Science and Engineering Guilin University of Electronic TechnologyGuilin541004China School of Chemistry and Chemical Engineering Changsha University of Science and TechnologyChangsha410114China Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an710021China

The conjugation of external species with twodimensional(2D)materials has broad application *** this study,we have explored the potential of noble metal/2D MOF heterostructures in hydrogen ***,the MgH_(2)-Ni-MOF@Pd system has shown remarkable hydrogen desorption/sorption performances,starting to liberate hydrogen at 1810C,which is 2300C lower than that of pristine *** the catalytic effect of Ni-MOF@Pd,the dehydrogenation apparent activation energy of MgH2 is noticeably decreased from(133.5±17.5)to(34.58±1.87)kJ·moL^(-1),and the hydrogenation apparent activation energy is reduced from(70.41±7.43)to(25.78±4.64)kJ·moL^(-1),which is lowered by 63.4%.The fully-dehydrogenated MgH2-NiMOF@Pd composite rapidly uptakes hydrogen,with 2.62wt%at 100℃and 6.06 wt%at 150℃within 300 s,*** mechanism analysis of MgH2 catalyzed by Ni-MOF@Pd has revealed that the transformation of Mg_2Ni and Mg_2NiH_4 could act as a"hydrogen pump",providing numerous channels for fast diffusion and transport of hydrogen ***,in the dehydrogenation process,the element Pd reacts with MgH_(2)to form the MgPd alloy phase,which makes MgH_(2)take precedence to decompose through the Mg-Pd alloy rather than self-decomposition,further reducing thermal stability and improving de/hydrogenation *** synergistic effect of Mg-Pd,Mg_2Ni,and the special ultra-thin 2D sheet structure of the additive is the main reason for the good hydrogen storage property of MgH_(2)-Ni-MOF@*** findings provide inspiration for designing efficient multifunctional additives with unique morphologies to optimize the hydrogen desorption/sorption behaviors of hydrogen storage materials.

关键词： Hydrogen storage Magnesium hydride 2D metal-organic framework nanosheets Ni/Pd Synergistic catalysis

Influence of oxygen-rich hot air composite gas medium on sintering performance and function mechanism

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Journal of Iron and Steel Research International 2024年第5期31卷 1071-1081页

作者： Min Gan Hao-xiang Zheng Xiao-hui Fan Zhi-yun Ji Qiang Li Ming Wu Yi-fan Wang Xiao-long Wang Yu-feng Wu Xu-ling Chen Zeng-qing Sun Xiao-xian huang School of Minerals Processing and Bioengineering Central South UniversityChangsha410083HunanChina Shanxi Taigang Stainless Steel Co. Ltd.Taiyuan030003ShanxiChina

Hot air sintering technology is used to improve the quality and production efficiency of sintered ***,the current thick layer condition highlights the disadvantage of the low oxygen potential of the hot air sintering ***,it is considered to use oxygen enrichment sintering to improve the environment of hot air *** sintering,hot air sintering,and oxygen-rich hot air sintering were compared through sintering cup experiments,and the influence of hot air and oxygen-rich hot air on sintering indexes was *** air reduced the vertical sintering velocity,while improved the yield and tumbler ***-rich hot air sintering contributed to improving the vertical sintering velocity while ensuring the quality of sintered ore,thus comprehensively improving production *** the action of hot air,the highest temperature of the sintering layer increased and the high-temperature holding time was *** oxygen enrichment,the combustion efficiency of fuels in the upper layer of materials was promoted,which optimized heat distribution in the middle and lower layers of materials and increased the content of calcium ferrite in the sintered ore,thus strengthening the sintering process.

关键词： Iron ore sintering Hot air sintering Oxygen enrichment Function mechanism

Efficient removal of U(VI) from wastewater by a sponge-like 3D porous architecture with hybrid electrospun nanofibers

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Water Science and Engineering 2024年第2期17卷 150-156页

作者： Lin Hu Lin Chen xian-kun Wu Rui Luo Rong-guan Lv Zheng-hao Fei feng Yang School of Chemistry and Environmental Engineering Yancheng Teachers UniversityYancheng 224051China Jiangsu Province Engineering Research Center of Agriculural Breeding Pollution Control and Resource Yancheng 224051China Jiangsu Nanda Huaxing Science and Technology of Environmental Protection Co.Ltd. Yancheng 224001China

Removal of uranium(VI)from nuclear wastewater is urgent due to the global nuclear energy *** study synthesized novel sponge-like 3D porous materials for enhanced uranium adsorption by combining electrospinning and fibrous freeze-shaping *** materials possessed an organic-inorganic hybrid architecture based on the electrospun fibers of polyacrylonitrile(PAN)and SiO_(2).As a sup-porting material,the surface of fibrous SiO_(2) could be further functionalized by cyano groups via(3-cyanopropyl)*** the cyano groups were turned into amidoxime(AO)groups to obtain a amidoxime-functionalized sponge(PAO/SiO_(2)-AO)through the subsequent ami-doximation *** proposed sponge exhibited enhanced uranium adsorption performance with a high removal capacity of 367.12 mg/g,a large adsorption coefficient of 4.0×10^(4)mL/g,and a high removal efficiency of 97.59%.The UO_(2)^(2+)adsorption kinetics perfectly conformed to the pseudo-second-order *** sorbent also exhibited an excellent selectivity for UO_(2)^(2+) with other interfering metal ions.2023 Hohai *** and hosting by Elsevier B.V.

关键词： Uranium removal Sponge Amidoximation Organic-inorganic hybrid structure Electrospinning

钢铁企业除尘用涤纶滤料在复杂烟气环境下的老化行为分析

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东北大学学报（自然科学版） 2024年第6期45卷 883-889页

作者：代峰柳静献东北大学资源与土木工程学院辽宁沈阳110819

为研究高温烟气中酸碱耦合作用对滤料性能的影响,在3种不同温度(45,75和130℃)下对涤纶滤料进行酸碱交互老化试验.发现涤纶滤料在高温酸碱耦合环境下的耐水解性能较差,且先受到碱再受到酸腐蚀对滤料产生巨大影响.在130℃下,经碱性环境... 详细信息

为研究高温烟气中酸碱耦合作用对滤料性能的影响,在3种不同温度(45,75和130℃)下对涤纶滤料进行酸碱交互老化试验.发现涤纶滤料在高温酸碱耦合环境下的耐水解性能较差,且先受到碱再受到酸腐蚀对滤料产生巨大影响.在130℃下,经碱性环境和酸性环境的交互老化后,滤料的拉伸断裂强力和面层剥离强力分别为由1638.8,143.1 N下降到1100.8,19.1 N,FT-IR(Fourier transform infrared spectroscopy)显示,C-O吸收峰减弱,表明水解过程中的聚对苯二甲酸乙二醇大分子链断裂,这也是发生水解和性能下降的主要原因.

关键词：涤纶针刺毡钢铁行业废气高温酸碱交互机械性能表面形貌化学结构

Improvement of the nutritional support management system for patients in intensive care units

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World Journal of Psychiatry 2024年第1期14卷 44-52页

作者： Yuan-Yuan Zhang Chun-Yi Wang Dong-xian Guo Hai-Nu Gao xian-Shan Jin Yan-Li Wu Lu-Han Chen Zhi-xian feng Department of Critical Care Medicine Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Department of Information Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Department of Pharmacy Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Department of Nutrition Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Administrative Office Shulan(Hangzhou)HospitalZhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina

BACKGROUND Nutritional support for patients hospitalized in the intensive care unit(ICU)is an important part of clinical treatment and care,but there are significant implementation *** To introduce a modified nutritional support management system for ICU patients based on closed-loop information management and psychological *** The division of functions,personnel training,system construction,development of an intelligent decision-making software system,quality control,and improvement of the whole process were carried out to systematically manage nutritional support for ICU *** Following the implementation of the whole process management system,the scores of ICU medical staff’s knowledge,attitudes/beliefs,and practices regarding nutritional support were comprehensively *** proportion of hospital bed-days of total enteral nutrition(EN)in ICU patients increased from 5.58%to 11.46%,and the proportion of EN plus parenteral nutrition increased from 42.71%to 47.07%.The rate of EN initiation within 48 h of ICU admission increased from 37.50%to 48.28%,and the EN compliance rate within 72 h elevated from 20.59%to 31.72%.After the implementation of the project,the Self-rating Anxiety Scale score decreased from 61.07±9.91 points to 52.03±9.02 points,the Self-rating Depression Scale score reduced from 62.47±10.50 points to 56.34±9.83 points,and the ICU stay decreased from 5.76±2.77 d to 5.10±2.12 *** The nutritional support management system based on closed-loop information management and psychological counseling achieved remarkable results in clinical applications in ICU patients.

关键词： Closed-loop information Psychological counseling Intensive care unit patients Nutritional support Management system

sTREM-1 as promising prognostic biomarker for acute-on-chronic liver failure and mortality in patients with acute decompensation of cirrhosis

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World Journal of Gastroenterology 2024年第9期30卷 1177-1188页

作者： Song-Man Yu Hai Li Guo-Hong Deng xian-Bo Wang Xin Zheng Jin-Jun Chen zhong-Ji Meng Yu-Bao Zheng Yan-Hang Gao Zhi-Ping Qian feng Liu Xiao-Bo Lu Yu Shi Jia Shang Ruo-Chan Chen Yan huang Department of Infectious Diseases Xiangya HospitalCentral South UniversityChangsha 410000Hunan ProvinceChina Department of Gastroenterology Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Infectious Diseases Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China Center of Integrative Medicine Beijing Ditan HospitalCapital Medical UniversityBeijing 100020China Department of Infectious Diseases Institute of Infection and ImmunologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430020Hubei ProvinceChina Department of Infectious Diseases Nanfang HospitalSouthern Medical UniversityGuangzhou 510515Guangdong ProvinceChina Department of Infectious Disease Taihe HospitalHubei University of MedicineShiyan 442009Hubei ProvinceChina Department of Infectious Diseases The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630Guangdong ProvinceChina Department of Hepatology The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina Department of Liver Intensive Care Unit Shanghai Public Health Clinical CentreFudan UniversityShanghai 200093China Tianjin Institute of Hepatology Nankai University Second People's HospitalTianjin 300192China Infectious Disease Center The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054Xinjiang Uygur Autonomous RegionChina The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases The First Affiliated Hospital of School of MedicineZhejiang UniversityHangzhou 310003Zhejiang ProvineChina Department of Infectious Diseases Henan Provincial People's HospitalZhengzhou 463599Henan ProvineChina Department of Infectious Diseases Hunan Key Laboratory of Viral HepatitisXiangya HospitalCentral South UniversityChangsha 110051Hunan ProvineChina

BACKGROUND Acute decompensation(AD)of cirrhosis is associated with high short-term mortality,mainly due to the development of acute-on-chronic liver failure(ACLF).Thus,there is a need for biomarkers for early and accurate identification of AD patients with high risk of development of ACLF and *** triggering receptor expressed on myeloid cells-1(sTREM-1)is released from activated innate immune cells and correlated with various inflammatory *** To explore the prognostic value of sTREM-1 in patients with AD of *** A multicenter prospective cohort of 442 patients with cirrhosis hospitalized for AD was divided into a study cohort(n=309)and validation cohort(n=133).Demographic and clinical data were collected,and serum sTREM-1 was measured at *** enrolled patients were followed-up for at least 1 *** In patients with AD and cirrhosis,serum sTREM-1 was an independent prognosis predictor for 1-year survival and correlated with liver,coagulation,cerebral and kidney failure.A new prognostic model of AD(P-AD)incorporating sTREM-1,blood urea nitrogen(BUN),total bilirubin(TBil),international normalized ratio(INR)and hepatic encephalopathy grades was established and performed better than the model for end-stage liver disease(MELD),MELD-sodium(MELD-Na),chronic liver failure-consortium(CLIF-C)ACLF and CLIF-C AD ***,sTREM-1 was increased in ACLF and predicted the development of ACLF during first 28-d *** ACLF risk score incorporating serum sTREM-1,BUN,INR,TBil and aspartate aminotransferase levels was established and significantly superior to MELD,MELD-Na,CLIF-C ACLF,CLIF-C AD and P-AD in predicting risk of ACLF *** Serum sTREM-1 is a promising prognostic biomarker for ACLF development and mortality in patients with AD of cirrhosis.

关键词： Soluble triggering receptor expressed on myeloid cell-1 Acute decompensation Cirrhosis Acute-on-chronic liver failure Prognostic biomarker

Insights into Triclosan-Induced Endocrine Disruption:Evidence from the National Health and Nutrition Examination Survey and Zebrafish Models

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Environment & Health 2024年第7期2卷 424-440页

作者： Zhiming Li Hongyi xian Xiaohu Ren Rongyi Ye Yizhou zhong Yuji huang Boxuan Liang Yanhong Deng Mingzhu Dai Jie Guo Shuqin Tang Jialiang Pan Yu feng Ruobing Bai Xueping Chen Sahoko Ichihara Gaku Ichihara Da Chen Xingfen Yang Zhenlie huang NMPA Key Laboratory for Safety Evaluation of Cosmetics Guangdong Provincial Key Laboratory of Tropical Disease ResearchDepartment of ToxicologySchool of Public HealthSouthern Medical UniversityGuangzhou 510515China Shenzhen Key Laboratory of Modern Toxicology Shenzhen Medical Key Discipline of Health ToxicologyShenzhen Center for Disease Control and PreventionShenzhen 518055China Hunter Biotechnology Inc.Hangzhou 310051China College of Environment and Climate Guangdong Provincial Key Laboratory of Environmental Pollution and HealthJinan UniversityGuangzhou 510632China Vitargent(International)Biotechnology Limited Shatin 999077Hong Kong SARChina Department of Environmental and Preventive Medicine School of MedicineJichi Medical UniversityTochigi 329-0498Japan Department of Occupational and Environmental Health Faculty of Pharmaceutical SciencesTokyo University of ScienceNoda 278-8510Japan

Triclosan(TCS)has garnered significant attention due to its widespread use and associated endocrine-disrupting ***,its impact on the neuroendocrine system and underlying mechanisms remain poorly ***,we established correlations between TCS exposure and serum sex hormone levels in participants of the National Health and Nutrition Examination Survey(NHANES).Additionally,we investigated TCS’s influence on the neuroendocrine system using adult zebrafish exposed to environmentally relevant concentrations of TCS(0.361–48.2μg/L)for 21 *** of reproductive and neurotoxicity included histopathological examination and behavioral ***,proteomics analyses,and biochemical detection were employed to elucidate mechanisms underlying TCS-induced neuroendocrine *** correlations were found between TCS exposure and estradiol,testosterone,and sex hormone-binding globulin levels in NHANES *** addition,TCS exposure inhibited ovary development and spermatogenesis in *** and proteomics analysis revealed gender-specific key signaling and metabolism-related pathways implicated in TCS-induced reproductive ***,TCS exposure induced nervous system impairment,as evidenced by histological changes and altered motor behavior,possibly associated with oxidative *** analysis further highlighted the potential connection between endocrine system disruption and nervous system impairment following TCS ***,this study provided evidence supporting TCS-induced endocrine disruption and offered insights into its underlying mechanisms.

关键词： Emerging Contaminants Ecotoxicity Public Health Endocrine-Disrupting Chemicals Endocrine-Disrupting Effects

Achieving a remarkable low-temperature tensile ductility in a high-strength tungsten alloy

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Tungsten 2024年第1期6卷 150-161页

作者： xiang Cheng Zhuo-Ming Xie Xue-feng Xie Long-Fei Zeng Rui Liu Jun-feng Yang Xue-Bang Wu xian-Ping Wang Chang-Song Liu Qiang-feng Fang Key Laboratory of Materials Physics Institute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and TechnologyGanzhou 341000China

Hot-swaging yields a high ultimate tensile strength of 712 MPa but a limited tensile ductility with the total elongation of3.6%at a testing temperature of 200℃in a representative W-0.5wt.%ZrC *** this work,the evolution of Vickers microhardness with annealing temperatures is investigated in detail,which contributes to a rough index chart to guide the search for an optimized post-annealing *** the post-annealing around 1300℃,an outstanding tensile ductility at200℃,including a uniform elongation of 14%and a total elongation of~25%,has been achieved without the sacrifice of its *** evolution of dislocations and grain structures with the annealing temperatures accessed through backscattered scanning electron microscope and transmission electron microscope analysis reveals that the improved low-temperature tensile ductility has resulted from the reduction of residual dislocations and dislocation tanglement via the static recovery,which provides more room to accommodate dislocations,and hence stronger strain hardening ability and tensile ductility.

关键词： Tungsten Low-temperature ductility Annealing Dislocations

Ultrafast laser-induced decomposition for selective activation of GaAs

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Light(Advanced Manufacturing) 2024年第2期5卷 87-94页

作者： Ke-Mi Xu Chao Liu Lei Wang feng-Chun Pang Xin-jing Zhao xian-Bin Li Qi-Dai Chen Wei-Qian Zhao MIIT Key Laboratory of Complex-field Intelligent Exploration School of Optics and PhotonicsBeijing Institute of TechnologyBeijing100081China State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun 130012China

The manipulation of micro/nanostructures to customise their inherent material characteristics has garnered considerable *** this study,we present the selective activation of gallium arsenide(GaAs)via ultrafast laser-induced decomposition,which correlates with the emergence of ripples on the *** instigated a pronounced enrichment in the arsenic(As)concentration around the surface while inducing a depletion of gallium(Ga)at the structural *** simulations based on first principles exhibited a robust inclination towards the phase separation of GaAs,with the gasification of As-As pairs proving more facile than that of Ga-Ga pairs,particularly above the melting point of *** an illustrative application,a metal-semiconductor hybrid surface was confirmed,showing surface chemical bonding and surface-enhanced Raman scattering(SERS)through the reduction of silver ions on the laser-activated *** laser-induced selective activation holds promise for broader applications,including the controlled growth of Pd and the development of Au/Ag alloy-based platforms,and thereby opens innovative avenues for advancements in semiconductors,solar cell technologies,precision sensing,and detection methodologies.

关键词： Laser-induced activation Decomposition Laser-induced ripples Reduction SERS