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Journal of Energy Chemistry 2020年第12期29卷 30-38页

作者： jinxing yu Xiaoxiang Xu Clinical and Central Lab Putuo People’s HospitalTongji University1291 Jiangning RoadShanghai 200060China Shanghai Key Lab of Chemical Assessment and Sustainability School of Chemical Science and EngineeringTongji University1239 Siping RoadShanghai 200092China

Cr doped Ruddlesden-Popper compound Sr2 TiO4 has been successfully modified by fluorine to form a new compound Sr2 Ti(0.95) Cr(0.05) O3 F2. Structure analysis suggests two types of fluorine in the structure of this new compound, i.e. intralayer and interlayer F, which induce strong built-in electric field within this layered compound. The electric field stems from uneven distribution of F atoms on the two sides of perovskite layers therefore leads to charge disproportionation. DFT calculations suggest that this unique structural feature is highly beneficial for charge dissociations as it breaks the coplanar settlement of conduction band minimum and valence band maximum whilst maintains the 2 D charge transportation properties. This is clearly demonstrated by the superior photocatalytic activities of Sr2 Ti(0.95) Cr(0.05) O3 F2 for hydrogen production from water. Apparent quantum efficiency(AQE) as high as 1.16% at 420 ± 20 nm has been achieved which stands as the highest AQE reported on Sr2 TiO4 to date. Photoelectrochemical(PEC)analysis confirms improved charge separation conditions and prolonged charge lifetime.

关键词： DFT Fluorination Sr_(2)TiO_(4) Photocatalytic water splitting 2D charge transportation

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祛湿理论在痛风治疗中的运用

中外医药研究 2024年第11期3卷 164-166页

作者：余启荣郭显英余金星潜江市中医院湖北潜江433199

痛风为代谢性疾病,表现为反复发作的关节炎症。在中医理论中,痛风多与“湿邪”相关,因此祛湿治疗成为其重要手段之一。该文从健脾降浊利湿、清热止痛祛湿、补益肝肾祛湿三个方面探讨祛湿理论在痛风治疗中的运用,以期为相关治疗方案的应... 详细信息

痛风为代谢性疾病,表现为反复发作的关节炎症。在中医理论中,痛风多与“湿邪”相关,因此祛湿治疗成为其重要手段之一。该文从健脾降浊利湿、清热止痛祛湿、补益肝肾祛湿三个方面探讨祛湿理论在痛风治疗中的运用,以期为相关治疗方案的应用提供参考。

关键词：痛风祛湿理论中医药

Expediting H_(2)Evolution over MAPbI_(3)with a Nonnoble Metal Cocatalyst Mo_(2)C under Visible Light

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Energy Material Advances 2022年第1期2022卷 231-240页

作者： jinxing yu Xiaoxiang Xu Shanghai Key Lab of Chemical Assessment and Sustainability School of Chemical Science and EngineeringTongji UniversityShanghai 200092China

Halide perovskites have been emerging as promising photocatalytic materials for H_(2)evolution from water due to their outstanding photoelectric ***,the lack of proper surface reactive sites greatly hinders the photocatalytic potential of these fascinating ***,Mo_(2)C nanoparticles have been anchored onto methylammonium lead iodide(MAPbI_(3))as a nonnoble metal cocatalyst to promote H_(2)evolution *** Mo_(2)C nanoparticles have opposite zeta potential with MAPbI_(3)thereby electrostatically assembled onto the MAPbI_(3)surface,i.e.,Mo_(2)C@MAPbI_(3).Our results show that the anchored Mo_(2)C nanoparticles have a strong interplay with MAPbI_(3)substrate so that photogenerated electrons of MAPbI_(3)can be rapidly separated and transferred into Mo_(2)C for further H_(2)evolution *** optimal conditions,Mo_(2)C@MAPbI_(3)delivers exceptionally high photocatalytic performance for visible light-driven H_(2)evolution that clearly outperforms pristine MAPbI_(3)and Pt-deposited MAPbI_(3).An apparent quantum efficiency as high as 12.65%at 600±40 nm has been attained for H_(2)evolution,surpassing most of the MAPbI_(3)-based photocatalyst *** results signify the usefulness and applicability of Mo_(2)C as a new nonnoble metal-based cocatalyst in solar water splitting.

关键词： catalyst noble thereby

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超亲水柔性导电碳膜的制备及其油水分离性能

水处理技术 2024年第9期50卷 65-69页

作者：王颖楠郁金星刘克成范辉魏伟吴静国网河北省电力有限公司电力科学研究院河北石家庄050022 国网河北省电力有限公司河北石家庄050023 天津伊唯信科技有限公司天津300392

膜技术因分离效率高,占地小、易操作等特点被广泛应用于含油废水处理。但油类的疏水性特征导致膜污染问题在含油废水处理过程中更加突出,膜通量衰减明显,严重影响了膜系统连续运行的稳定性。实验通过向聚丙烯腈纺丝液中添加醋酸锌和三... 详细信息

膜技术因分离效率高,占地小、易操作等特点被广泛应用于含油废水处理。但油类的疏水性特征导致膜污染问题在含油废水处理过程中更加突出,膜通量衰减明显,严重影响了膜系统连续运行的稳定性。实验通过向聚丙烯腈纺丝液中添加醋酸锌和三乙氧基-1H,1H,2H,2H-十三氟-N-辛基硅烷提高碳化膜的亲水性和机械性能,制备出高导电、超亲水的柔性碳化膜。在-50 V/cm电压下,碳化膜做阴极,油水分离效率始终保持在99.97%左右。膜通量较不加电时提高了1.2倍,连续10个过滤周期后膜比通量仅衰减了5.2%,表现出卓越的油水分离性能和优异的稳定性。

关键词：导电膜油水分离纳米纤维碳化膜超亲水静电纺

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Boosting visible-light-driven water splitting over LaTaON_(2) via Al doping

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Science China Materials 2022年第12期65卷 3452-3461页

作者： Lin Yang jinxing yu Shufang Chang Xiaoxiang Xu Clinical and Central Lab Putuo People’s HospitalTongji UniversityShanghai 200060China Shanghai Key Lab of Chemical Assessment and Sustainability School of Chemical Science&EngineeringTongji UniversityShanghai 200092China

LaTaON_(2)is an attractive visible-light-active photocatalyst for water splitting due to its broad visible light absorption as far as 650 nm and proper band edge *** these promising properties,LaTaON_(2)generally exhibits poor photocatalytic activity because of its high defect concentration that severely hinders charge ***,LaTaON_(2)has been modified by doping Al into the Ta sublattice,i.e.,LaTa_(1−x)Al_(x)O_(1+y)N_(2−y)(0≤x≤0.20).Al doping not only inhibits the defect concentration and increases surface hydrophilicity but also maintains the desired visible light absorption of LaTaON_(2).These important modifications substantially ameliorate the charge separation conditions within LaTaON_(2)and are responsible for a much enhanced photocatalytic performance for water redox reactions under visible light *** optimal conditions,the Al-doped LaTaON_(2)delivers an apparent quantum efficiency of 1.17%at 420±20 nm for water oxidation into O_(2),outperforming most LaTaON_(2)-based *** findings highlight Al as a useful dopant to open up the photocatalytic potential of metal oxynitrides whose activity is often undermined by a high defect concentration.

关键词： LaTaON2 Al doping visible light photocatalyst water splitting

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无线电能传输系统电磁辐射抑制研究

中国测试 2024年第4期50卷 173-179页

作者：车凯郁金星刘松涛陈传敏宫云茜李德管国网河北省电力有限公司电力科学研究院河北石家庄050021 华北电力大学环境科学与工程学院河北保定071000

无线电能传输技术使消费电子或电动汽车可以实现非接触式充电,但较为严重的电磁辐射限制其进一步的应用和推广。为在不使用复杂耦合器结构的前提下有效降低无线电能传输系统的电磁辐射问题,该文提出基于扩频调制的无线电能传输系统电磁... 详细信息

无线电能传输技术使消费电子或电动汽车可以实现非接触式充电,但较为严重的电磁辐射限制其进一步的应用和推广。为在不使用复杂耦合器结构的前提下有效降低无线电能传输系统的电磁辐射问题,该文提出基于扩频调制的无线电能传输系统电磁辐射抑制方法,以降低无线电能传输系统的电磁辐射问题。首先,介绍周期性扩频调制技术和复数频调制技术的基本原理,并对两种扩频调制技术的参数进行设计与分析;然后,分析扩频调制技术的电磁辐射抑制效果和其对系统效率的影响;最后,通过搭建样机的形式对所提出的方案进行验证。实验结果表明:周期性扩频调制技术可以降低8.71~16.7 dB不等的辐射强度衰减,而复数频调制技术可以降低6.67~13.4 dB不等的辐射强度衰减,所提的扩频调制方案可以有效降低无线电能传输系统存在的电磁辐射问题。

关键词：无线电能传输电磁辐射抑制周期性扩频调制复数频调制

温度对3种不同材料铅酸蓄电池极板老化的影响

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金属功能材料 2024年第1期31卷 114-120页

作者：宫云茜郁金星李栋王新刚傅春明国网河北省电力有限公司电力科学研究院河北石家庄050021 山东电工电气集团数字科技有限公司山东济南250000

铅酸蓄电池是变电站直流系统中最为常见的电源,在站用交流失电的情况下,能够及时向保护、测控等直流负荷供电。但阀控式铅酸蓄电池经较长时间运行后,较易出现极板老化的问题。研究温度变化对极板老化缺陷的影响。考虑温升条件的影响,制... 详细信息

铅酸蓄电池是变电站直流系统中最为常见的电源,在站用交流失电的情况下,能够及时向保护、测控等直流负荷供电。但阀控式铅酸蓄电池经较长时间运行后,较易出现极板老化的问题。研究温度变化对极板老化缺陷的影响。考虑温升条件的影响,制备了3组不同类型的蓄电池试样,分别使用铅钙板栅、铅锑板栅以及铅硒低板栅进行循环加速老化试验,测试每组试样在温升状态下的老化状态。经试验验证可知:在高温环境下(63℃)进行加速老化试验时,铅锑板栅和铅硒低板栅蓄电池的总容量明显低于铅钙板栅蓄电池,这表明这两组试样在高温条件下容易发生容量损失。同样,在该高温条件下,这两组试样的内阻与电流也明显高于铅钙板栅蓄电池,这说明它们在高温环境下的性能较差。内阻高会导致蓄电池充电和放电过程中能量损失增加,电流高可能会影响蓄电池的稳定性和寿命。此外,根据不同温度条件下(25、35和45℃)的测试结果,3组试样的放电时间逐渐加快,而电池容量则逐渐降低,这说明高温环境会加速蓄电池的老化过程,并导致电池容量损失。在3组蓄电池中,使用铅钙板栅的蓄电池极板在高温环境中使用寿命相对较长,老化速度最慢。

关键词：铅酸蓄电池温升影响极板老化铅钙板栅高温加速老化电池容量

Integrin β5 subunit regulates hyperglycemia-induced vascular endothelial cell apoptosis through FoxO1-mediated macroautophagy

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Chinese Medical Journal 2024年第5期137卷 565-576页

作者： Xuze Lin Sizhuang Huang Side Gao jinxing Liu Jiong Tang Mengyue yu Department of Cardiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100037China Department of Cardiology Fuwai Yunnan Cardiovascular HospitalKunmingYunnan 650000China

Background:Hyperglycemia frequently induces apoptosis in endothelial cells and ultimately contributes to microvascular dysfunction in patients with diabetes mellitus(DM).Previous research reported that the expression of integrins as well as their ligands was elevated in the diseased vessels of DM ***,the association between integrins and hyperglycemia-induced cell death is still *** research was designed to investigate the role played by integrin subunit β5(ITGB5)in hyperglycemia-induced endothelial cell ***:We used leptin receptor knockout(Lepr-KO)(db/db)mice as spontaneous diabetes animal *** deletion of ITGB5 in endothelial cell was achieved by injecting vascular targeted adeno-associated virus via tail ***,we also applied small interfering RNA in vitro to study the mechanism of ITGB5 in regulating high glucose-induced cell ***:ITGB5 and its ligand,fibronectin,were both upregulated after exposure to high glucose in vivo and in ***5 knockdown alleviated hyperglycemia-induced vascular endothelial cell apoptosis and microvascular rarefaction in *** vitro analysis revealed that knockdown of either ITGB5 or fibronectin ameliorated high glucose-induced apoptosis in human umbilical vascular endothelial cells(HUVECs).In addition,knockdown of ITGB5 inhibited fibronectin-induced HUVEC apoptosis,which indicated that the fibronectin-ITGB5 interaction participated in high glucose-induced endothelial cell *** using RNA-sequencing technology and bioinformatic analysis,we identified Forkhead Box Protein O1(FoxO1)as an important downstream target regulated by ***,we demonstrated that the excessive macroautophagy induced by high glucose can contribute to HUVEC apoptosis,which was regulated by the ITGB5-FoxO1 ***:The study revealed that high glucose-induced endothelial cell apoptosis was positively regulated by ITGB5,which suggested that ITGB5 could potentially be used

关键词： Endothelial cell apoptosis Integrin Autophagy Diabetes

A Moment of Reflection

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英语世界 2023年第10期 118-119页

作者： yu jinxing 蔡力坚

[1] We know we’re prone to *** of us resort to writing diaries as an antidote to forgetfulness,recording every interesting moment as well as everyday trifles,so that they can go back later and replay scenes from bygone *** diary writing requires an unusual level of *** seem blessed with an uncanny ability to recount the most intricate details of past events despite the passage of years,leaving us *** about most of us? I used to keep a *** first I wrote entries daily,then every other day,and then at long intervals before I threw in the towel and consigned my diary to the innermost corner of one of my desk *** absence of a functioning mnemonic renders many past experiences *** other day,a couple of my old buddies and I struggled to recall when and where we had first met—to no avail.

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A sequential continuous flow synthesis and purification process of calcium dibutyryladenosine cyclophosphate

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Chinese Chemical Letters 2024年第2期35卷 402-406页

作者： Liming Cao Maolin Sun Chaoming Liang Lei Yang yueyue Ma Ruihua Cheng Yanxiong Ke Wei yu jinxing Ye Engineering Research Center of Pharmaceutical Process Chemistry Ministry of EducationSchool of PharmacyEast China University of Science and TechnologyShanghai 200237China School of Biomedical and Pharmaceutical Sciences Guangdong University of TechnologyGuangzhou 510006China Shanghai No.1 Biochemical& Pharmaceutical Co. Ltd.Shanghai 200080China

Calcium dibutyryladenosine cyclophosphate is a widely used cardiovascular *** traditional batch synthesis process suffers from long reaction times,tedious operations,and unstable ***,a sequential continuous flow synthesis combined with a multistage in-line purification process of calcium dibutyryladenosine cyclophosphate was *** acylation reaction was completed in a continuous coil reactor at 160℃ in 20 *** the high toxic solvent pyridine was replaced by ***,the multistage in-line purification process was integrated into the homemade 3D circular cyclone-type micromixer *** with the membrane phase separators,the residence time of the purification step was 30 *** isolated yield of this sequential continuous process was 92%with 99%purity.

关键词： Flow chemistry Calcium dibutyryladenosine cyclophosphate Continuous flow synthesis In-line purification 3D circular cyclone-type micromixer chip