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Effect of MgO-Cr_(2)O_(3) and Mg0-MgAl_(2)0_(4)-based refractories on refractory-steel interface reaction and cleanliness of pipeline steel

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Journal of Iron and Steel Research(International) 2024年第4期31卷 849-860页

作者： Guang-mei Yang Cheng Yuan Chang Liu Qiang Wang Guang-qiang Li Yong-shun Zou ao huang The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The interaction of MgO-MgAl_(2)O_(4)-based and MgO-Cr_(2)O_(3)-based refractories with X70 molten steel was studied by immersion experiments at 1560℃.The effects of immersion time(30 and 60 min)on the contents of total oxygen(TO),Al,Nb,Si,Mn,and Cr as well as the composition,number density,and size distribution of inclusions in the molten steel were investigated.The influence of the penetration and erosion degree of the molten steel to the refractory on the steel-refractory interface layer was analyzed.The results show that,at 1560℃,the MgO-MgAl_(2)O_(4)-based refractory can better control the contents of TO and the composition of molten steel compared with the MgO-Cr_(2)O_(3)-based refractory.The TO content is only 16×10^(-4) wt.%in the molten steel after reacted with the Mg0-MgAl_(2)O_(4)-based refractory at the end point of refining,4 accounting for 11.5%of that reacted with the MgO-Cr_(2)O_(3)-based refractory(139×10^(-4) wt.%).The number density of inclusions is only 14 mm^(-2),and the average size ofinclusions is only 1.31μm,with thelargest proportion of inclusions in 1-2μm(70%).The Al_(2)O_(3)-MnS-Cao complex inclusions in the original steel changed to complex inclusions dominated by Cr-Nb-Mn-S-O and MgO.Al_(2)O_(3),corresponding to the MgO-Cr_(2)O_(3)-based and MgO-MgAl_(2)O_(4)-based refractories,respectively.The MgO.Al_(2)O_(3) layer was formed at the reaction interface between MgO-MgAl_(2)O_(4)-based refractory and molten steel,which is helpful to restrict the erosion of refractories and the pollution of molten steel.The damage mechanism of the MgO-Cr_(2)O_(3)-based refractory is mainly permeation and chemical reaction,while the damage of the MgO-MgAl_(2)O_(4)-based refractory is mainlyscouring erosion.

关键词： MgO-Cr_(2)O_(3)-based refractory MgO-MgAl O_(4)-based refractory Nonmetallic inclusion Erosion interface layer Steel penetration

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Microstructure design of advanced magnesium-air battery anodes

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Journal of Magnesium and Alloys 2024年第2期12卷 443-464页

作者： Xu huang Qingwei Dai Qing Xiang Na Yang Gaopeng Zhang ao Shen Wanming Li School of Metallurgy and Materials Engineering Chongqing University of Science and TechnologyChongqing 401331China School of Materials and Architectural Engineering Guizhou Normal UniversityGuiyang 550025China School of Material and Metallurgy University of Science and Technology LiaoningAnshan 114051China

Metal-air battery is an environmental friendly energy storage system with unique open structure.Magnesium(Mg)and its alloys have been extensively attempted as anodes for air batteries due to high theoretical energy density,low cost,and recyclability.However,the study on Mg-air battery(MAB)is still at the laboratory level currently,mainly owing to the low anodic efficiency caused by the poor corrosion resistance.In order to reduce corrosion losses and achieve optimal utilization efficiency of Mg anode,the design strategies are reviewed from microstructure perspectives.Firstly,the corrosion behaviors have been discussed,especially the negative difference effect derived by hydrogen evolution.Special attention is given to the effect of anode micro-structures on the MAB,which includes grain size,grain orientation,second phases,crystal structure,twins,and dislocations.For further improvement,the discharge performance,long period stacking ordered phase and its enhancing effect are considered.Meanwhile,given the current debates over Mg dendrites,the potential risk,the impact on discharge,and the elimination strategies are discussed.Microstructure control and single crystal would be promising ways for MAB anode.

关键词： Magnesium Air battery Anode Microstructure Anodic efficiency

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EBV-associated lymphoproliferative disease post-CAR-T cell therapy

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Frontiers of Medicine 2024年第2期18卷 394-398页

作者： Shiyuan Zhang Xiaoxi Zhou Shangkun Zhang Na Wang Tongcun Zhang Donghua Zhang Qilin ao Yang Cao Liang huang Department of Hematology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Immunotherapy Research Center for Hematologic Diseases of Hubei Province Wuhan430030China Institute of Biology and Medicine College of Life and Health SciencesWuhan University of Science and TechnologyWuhan430081China Department of Pathology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China State Key Laboratory of Experimental Hematology National Clinical Research Center for Blood DiseasesHaihe Laboratory of Cell EcosystemInstitute of Hematology&Blood Diseases HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeTianjin300020China Tianjin Institutes of Health Science Tianjin301600China

Epstein–Barr virus(EBV)-associated lymphoproliferative diseases(EBV-LPDs)are common complications that occur after solid organ transplantation or allogeneic hematopoietic stem-cell transplantation(HSCT).However,their occurrence and treatment post-chimeric antigen receptor-modified T(CAR-T)cell therapy has not been reported.Two patients had been diagnosed with EBV-positive aggressive B-cell lymphoma and experienced relapses after multiple lines of treatment.After receiving CAR-T cell therapy in tandem with autologous HSCT,the patients achieved complete remission.However,with a median time of 38.5 months after CAR-T cell therapy,B-cell-derived EBV-LPDs were diagnosed,and they were relieved through the administration of immune checkpoint inhibitor or B-cell-depleting agents.Collectively,our report suggests that EBV-LPDs may represent a long-term adverse event after CAR-T cell therapy,especially in patients who previously had EBV-positive disorders,and they can be resolved by immune normalization strategy or B-cell depleting therapy.

关键词： EBV-associated lymphoproliferative disease chimeric antigen receptor T-cell autologous stem cell transplantation immune checkpoint inhibitor

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Synergistic catalysis of the N-hydroxyphthalimide on flower-like bimetallic metal-organic frameworks for boosting oxidative desulfurization

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Petroleum Science 2024年第1期21卷 674-682页

作者： Jing He Kun Zhu Wei Jiang Dong-ao Zhu Lin-Hua Zhu Hai-Yan huang Wen-Shuai Zhu Hua-Ming Li Institute for Energy Research Jiangsu UniversityZhenjiang212013JiangsuChina College of Chemistry and Chemical Engineering Hainan Normal UniversityKey Laboratory of Water Pollution Treatment and Resource Reuse of Hainan ProvinceHaikou571158HainanChina

Synergic catalytic effect between active sites and supports greatly determines the catalytic activity for the aerobic oxidative desulfurization of fuel oils.In this work,Ni-doped Co-based bimetallic metal-organic framework(CoNi-MOF)is fabricated to disperse N-hydroxyphthalimide(NHPI),in which the whole catalyst provides plentiful synergic catalytic effect to improve the performance of oxidative desulfurization(ODS).As a bimetallic MOF,the second metal Ni doping results in the flower-like morphology and the modification of electronic properties,which ensure the exposure of NHPI and strengthen the synergistic effect of the overall catalyst.Compared with the monometallic Co-MOF and naked NHPI,the NHPI@CoNi-MOF triggers the efficient activation of molecular oxygen and improves the ODS performance without an initiator.The sulfur removal of dibenzothiophene-based model oil reaches 96.4%over the NHPI@CoNi-MOF catalyst in 8 h of reaction.Furthermore,the catalytic product of this aerobic ODS reaction is sulfone,which is adsorbed on the catalyst surface due to the difference in polarity.This work provides new insight and strategy for the design of a strong synergic catalytic effect between NHPI and bimetallic supports toward high-activity aerobic ODS materials.

关键词： Metal-organic frameworks Doped Bimetallic N-hydroxyphthalimide Aerobic processes Oxidative desulfurization

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Ultracycles consisting of macrocycles

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Chinese Chemical Letters 2024年第5期35卷 183-188页

作者： Wen-Hui Mi Teng-Yu huang Yu-Fei ao Xu-Dong Wang Qi-Qiang Wang De-Xian Wang Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Presented here is a one-pot strategy starting from rationally designed macrocyclic precursors for the diverse construction of sophisticated ultracycles.The type and amount of the base were found to significantly influence the macrocyclization outcome.The use of 4.0 equiv.CsF resulted in ultracycles of both types A and B while the presence of CsF larger than 6.0 equiv.produced only type B ultracycles.Existence of anion template increased the total yields and affected the distribution of the ultracycles.The ultracycles can accommodate large organic dicarboxylates anions via multiple anion-πand hydrogen bonds,and show selectivity to the size-matched heptanedioate(C7^(2−)).Based on all possible species and relevant equilibrium constants as well as material and charge balances,a numerical iterative algorithm was developed and applied to fit the association constants of B2H with dicarboxylates from glutarate(C5^(2−))to octanedioate(C8^(2−)),which gave association constants up to 10^(3) L/mol.

关键词： Ultracycles Diversity-oriented synthesis Anion recognition Anion-πinteraction

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MoS2 as a cocatalyst applied in advanced oxidation processes for enhancing degradation of organic pollutants: a review

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Tungsten 2024年第3期6卷 473-487页

作者： Ming-Hao Fan Cong-Hui Wang Xiang Yu Jun Ding ao-Qi Xiao Yue Li Wei-Ya huang School of Material Science and Engineering Henan Polytechnic University School of Chemical and Printing-Dyeing Engineering Henan International Joint Laboratory of Rare Earth Composite Materials Henan University of Engineering School of Chemistry and Chemical Engineering Jiangxi University of Science and Technology Department of Chemical and Environmental Engineering University of Cincinnati

Fenton technology,as a typical advanced oxidation processes（aoPs）,can generate reactive oxygen species（ROS） of strong oxidation capacity to degrade organic pollutants,which has attracted wide attention.However,it is accompanied by the slow Fe3+/Fe2+cycle rate,easy to generate iron sludge and so on.Recently,it has been proven that the inorganic cocatalysts represented by MoS2can effectively solve the above problems.Meanwhile,MoS2can accelerate the activation of peroxy mono sulfate（PMS） and peroxodisulfate（PDS） by Fe2+.In this paper,MoS2as the cocatalyst in H2O2+Fe2+,PMS+Fe2+and PDS+Fe2+were comprehensively reviewed.Specially,the cycling processes of Fe3+/Fe2+in different systems,the cocatalytic effect of MoS2by the exposed active sites,the ROS generation mechanism as well as the microscopic mechanism during the reaction were elaborated emphatically.The results indicate that the reductive active sites on the surface of MoS2can promote the regeneration of Fe2+through the cycle between Fe3+/Fe2+and Mo4+/Mo5+/Mo6+.Thus,ROS such as ·OH,SO4·-and1O2with strong oxidizing property can be produced to improve the degradation efficiency of organic pollutants.At last,the challenges and developments of MoS2cocatalysts in aoPs for practical applications were prospected.This review contributes to a deeper understanding of the cocatalytic effect of two-dimensional metal sulfides in aoPs and facilitates their industrial application.

关键词： Cocatalyst Fenton reaction Degradation of organic pollutant Molybdenum disufide Reactive oxygen species

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Fli1 acts in parallel with Pu.1 to control macrophage and neutrophil fate in zebrafish

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Journal of Genetics and Genomics 2024年第3期51卷 359-362页

作者： ao Zhang Jingao Lu Shachuan Feng Huapeng Yu Tao Yu Shizheng Zhao Kemin Chen Zhibin huang Jin Xu Jianan Y.Qu Zilong Wen Division of Life Science Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Division of Cell Developmental and Integrative BiologySchool of MedicineSouth China University of TechnologyGuangzhouGuangdong 510006China Department of Immunology and Microbiology School of Life ScienceSouthern University of Science and TechnologyShenzhenGuangdong 518055China Biomedical Research Institute Shenzhen Peking University-Hong Kong University of Science and Technology Medical CenterShenzhenGuangdong 518036China Department of Electronic and Computer Engineering Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Greater Bay Biomedical Innocenter Shenzhen Bay LaboratoryShenzhenGuangdong 518067China

Macrophages and neutrophils are key components of myeloid cells and play critical roles in innate immune responses,organ formation,and tissue homeostasis.The integrity of their functions heavily relies on the generation of a proper number of mature macrophages and neutrophils through embryonic and adult myelopoiesis.In mammalian adult myelopoiesis,oligopotent common myeloid progenitors(CMPs)are known to be the earliest myeloid progenitors,which give rise to granulocyte-macrophage progenitors(GMPs),subsequently differentiate into unipotent neutrophil and macrophage precursors,and finally,mature macrophages and neutrophils(Orkin and Zon,2008).In contrast,the ontogeny of embryonic myelopoiesis and the mechanism underlying the formation of macrophages and neutrophils remainless understood.

关键词： fish macrophage homeostasis

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Thickness monitoring and discontinuous degradation mechanism of wear lining refractories for refining ladle

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Journal of Iron and Steel Research(International) 2022年第7期29卷 1110-1118页

作者： Yan-zhu Huo Hua-zhi Gu Juan Yang ao huang Zheng Ma The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina School of Computer Science and Technology Wuhan University of Science and TechnologyWuhan 430081HubeiChina Zhejiang Zili High Temperature Technology Co. Ltd.Shaoxing 312300ZhejiangChina

As a functional metallurgical container for molten steel,refining ladle has a great influence on the smelting safety and quality of steel.The online monitoring of the residual thickness for ladle lining was applied to increase the smelting efficiency and safety.It is found that the ladle refractories show obvious discontinuous degradation characteristics through the monitoring data.Moreover,the degradation of low-carbon magnesia–carbon brick at slag line and corundum-based castable at steel bath was calculated according to the established corrosion model and crack propagation model,respectively.The discontinuous degradation mechanism of the ladle refractories is illustrated,which is of great significance to the optimal configuration of the ladle lining refractories.

关键词： Refining ladle Refractory Discontinuous degradation Monitoring Modeling

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Interaction between microporous magnesia castable and 38CrMoAl steel

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Journal of Iron and Steel Research(International) 2023年第3期30卷 516-524页

作者： Cheng Yuan Yu Liu Guang-qiang Li Yong-shun Zou ao huang The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The microporous magnesia refractory shows a promising application prospect as tundish lining due to excellent thermal insulation and slag resistance.The effect of interaction between microporous magnesia castable and 38CrMoAl steel containing 0.876 wt.%Al on the cleanliness of 38CrMoAl steel was studied and compared with that of fused magnesia castable.The results show that the micropores in the microporous magnesia castable can promote the formation of dense and continuous MgO-Al_(2)O_(3)layer,which can inhibit the further pollution of molten steel by refractories,whereas the MgO-Al_(2)O_(3)layer formed in test of fused magnesia castable is not continuous.After 30 min holding,the total oxygen content in the steel samples for the test of microporous magnesia castable is only 42.2%of that for the test of fused magnesia castable.The inclusions in the steel samples for the test of microporous magnesia castable are also less than those for the test of fused magnesia castable.It shows that microporous magnesia castable is a promising tundish refractory for the preparation of clean high-Al steel.

关键词： Microporous magnesia castable Fused magnesia castable High-Al steel Cleanliness Tundish lining refractory

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Association of Comorbid Asthma and the Efficacy of Bioabsorbable Steroid-eluting Sinus Stents Implanted After Endoscopic Sinus Surgery in Patients with Chronic Rhinosinusitis with Nasal Polyps

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Current Medical Science 2023年第5期43卷 1005-1012页

作者： ao huang Tao LI Min-shan LI Zhen-xiao huang De-hui WANG Lei CHENG Bing ZHOU Heng WANG Zheng LIU Department of Otolaryngology-Head and Neck Surgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Institute of Allergy and Clinical Immunology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Hubei Clinical Research Center for Nasal Inflammatory Diseases Wuhan 430030China Department of Otolaryngology-Head and Neck Surgery Beijing Tongren HospitalCapital Medical UniversityBeijing 100000China Department of Otolaryngology-Head and Neck Surgery EyeEarNose and Throat HospitalFudan UniversityShanghai 200000China Department of Otorhinolaryngology&Clinical Allergy Center The First Affiliated HospitalNanjing Medical UniversityNanjing 210029China

Objective To identify factors affecting the efficacy of steroid-eluting sinus stents implanted after endoscopic sinus surgery(ESS)in patients with chronic rhinosinusitis with nasal polyps(CRSwNP).Methods We performed a post-hoc analysis of a randomized self-controlled clinical trial on post-operative implantation of bioabsorbable steroid-eluting stents in patients with CRSwNP.Univariate logistic regression analysis was conducted to identify which of the following factors affect the response to post-operative stent implantation:sex,serum eosinophil levels,history of prior surgery,endoscopic scores,and comorbid conditions(asthma and allergic rhinitis).The primary outcome was the rate of post-operative intervention on day 30,and the secondary outcome was the rate of polypoid tissue formation(grades 2–3)on days 14,30,and 90.Results A total of 151 patients with CRSwNP were included in the post-hoc analysis.Asthma was identified as the only risk factor for a poor response to steroid-eluting sinus stents on post-operative day 30,with an odds ratio of 23.71(95%CI,2.81,200.16;P=0.004)for the need for post-operative intervention and 19(95%CI,2.20,164.16;P=0.003)for moderate-to-severe polypoid tissue formation.In addition,the asthmatic group showed higher rates of post-operative intervention and polypoid tissue formation than the non-asthmatic group on post-operative day 30.Blood eosinophil levels were not identified as a risk factor for poor outcomes after stent implantation.Conclusion Comorbid asthma,but not blood eosinophil level,impairs the efficacy of steroid-eluting sinus stents in the short term after ESS in patients with CRSwNP.

关键词： chronic rhinosinusitis asthma nasal polyps outcome steroid-eluting sinus stent

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