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A flexible metal-organic framework with double interpenetration for highly selective CO_2 capture at room temperature

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Science China Chemistry 2016年第8期59卷 1051-1058页

作者： Bingcong Zhou haowen Yang Yan Deng Ming Liu Bin Liu nongyue He Zhiyang Li State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University Laboratory of.neuro-Oncology Tianjin Neurological Institute Tianjin Medical University General Hospital Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Economical forest Cultivation and Utilization of 2011 Collaborative Innovation Center in Hunan Province Hunan Key Laboratory of Green Packaging and Application of Biological Nanotechnology Hunan University of Technology Department of Biomedical Engineering School of Basic Medical Sciences Nanjing Medical University Department of Laboratory Medicine Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University

MicroRnAs （miRnAs） are small non-coding RnAs that regulate gene expression at the post-transcriptional level, and their aberrant expression occurs during the development of malignant diseases. Recently, miRnAs have been proposed as potential prognostic and predictive biomarkers for early diagnosis. However, a major obstacle in rapid miRnA analysis from real samples is the lack of ultrasensitive and quantitative techniques. In this regard, the use of chemiluminescence （CL） system offers a highly sensitive strategy for detecting miRnAs. In this article, an ultrasensitive approach has been established for the quantification ofmiRnAs, using magnetic beads （MBs） and alkaline phosphatase （AP）-based CL system. This technique depends on sandwich hybridization among MBs-labeled capture probes, target miRnAs and biotin-labeled reporter probes, conjugation of streptavidin-alkaline phosphatase （SA-AP） to biotin-labeled reporter probes, and CL detection of AP-linked targets. Detection of miR-21 with this technique demonstrated a high selectivity and an ultralow limit of detection （LOD） of 60 fM with an extraordinarily wide range of six orders of magnitudes. The quantitation could be achieved by direct detecting target miRnA in serum samples within a total time of 1.5 h and did not require reverse transcription and polymerase chain reaction （PCR） amplification. Therefore, this developed method shows great potential for early cancer diagnosis based on miRnAs as biomarkers.

关键词： MicroRnA quantitation magnetic bead chemiluminescence liver cancer

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Regulated adsorption-diffusion and enhanced charge transfer in expanded graphite cohered with n,B bridge-doping carbon patches to boost K-ion storage

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Journal of Energy Chemistry 2023年第1期76卷 67-74,I0003页

作者： Haiyan Wang haowen Du Hucheng Zhang Songjie Meng Zhansheng Lu Hao Jiang Chunzhong Li Jianji Wang Centre of Henan Province for Green Manufacturing of f.ne Chemicals Key Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiang 453007HenanChina Key Laboratory for Ultraf.ne Materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China School of Physics Henan Normal UniversityXinxiang 453007HenanChina

The great challenges are remained in constructing graphite-based anode with well built-in structures to accelerate kinetics and enhance stability in the advanced K-ion batteries(KIBs).Here,we firstly report the design of expanded graphite cohered by n,B bridge-doping carbon patches(nBEG)for efficient K-ion adsorption/diffusion and long-term *** is the B co-doping that plays a crucial role in maximizing doping-site utilization of.n atoms,balancing the adsorption-diffusion kinetics,and promoting the charge transfer between nBEG and K ***,the robust lamellar structure,suitable interlayer distance,and rich active sites of the designed nBEG favor the rapid ion/electron transfer pathways and high K-ion storage ***,even at a low n,B doping concentration(4.36 at%,2.07 at%),nBEG anode shows prominent electrochemical performance for KIBs,surpassing most of the advanced carbon-based *** studies,density f.nctional theory simulations,and in-situ Raman spectroscopy are further performed to reveal the K-ion storage mechanism and confirm the critical actions of co-doping *** work offers the new methods for graphite-electrode design and the deeper insights into their energy storage mechanisms in KIBs.

关键词： Heteroatom dual-doping Graphite anodes K-ion batteries Adsorption and diffusion energy Charge transfer

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The atomic parameter model for the fifth and sixth transition metal quasicrystal alloys(Mc=0.5)

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Science China(Physics,Mechanics & Astronomy) 2009年第10期52卷 1593-1600页

作者： LIAO ShuZhi GUI XuChun ZHAnG Chun PEnG HaoJun XIE haowen OUYAnG Yif.ng ZHAnG BangWei Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of PhysicsHunan Normal UniversityChangsha 410081China College of Mathematics and Computer Science Hunan Normal UniversityChangsha 410081China Department of Physics Guangxi UniversityNanning 530004China Department of Applied Physics Hunan UniversityChangsha 410081China International Centre for Materials Physics Chinese Academy of SciencesShenyang 110015China

The forming ability of quasicrystal phase has a relationship with the atomic bond factors based on differences in atom size and electron ***,those factors or their combination are used to describe the forming ability,stability of alloys,*** this paper,the quasicrystal alloy forming abilities for the fifth and sixth transition metals(Y,Zr,nb,Mo,Ru,Rh,Pd and La,Hf,Ta,W,Re,Os,Ir,Pt) based alloys have been studied by the size factor and the atomic parametric *** has been found that an ellipse curve can be used to separate the quasicrystal formed area from the informed area in the size factor and atomic parameters f.nctional *** ellipse curve can be def.ned by an equation(x-m)2/c2+(y?n)2/d2=*** overall reliabilities for the model are up to 97.4% and 95.5% for the fifth and the sixth transition metals based quasicrystal alloys,***,the ellipse parameters m,n,c and d can be paraphrased by some appropriate parameters for each host metal.

关键词： quasicrystal transition metal atomic parametric model ellipse model

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蒙脱土负载硫化纳米零价铁降解有机污染物

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环境工程 2024年第1期42卷 157-165页

作者：江皓文魏睿杨秀琼罗胜联喻恺北京航空航天大学空间与环境学院北京100191 南昌航空大学江西省持久性污染控制和资源循环利用重点实验室南昌330063 江西省生态环境科学研究与规划院南昌330006

通过一步法合成了蒙脱土负载硫化纳米零价铁(CSZVI),使用TEM、BET、XRD、XPS、接触角测量仪对CSZVI的表面物化性质和材料结构进行表征,重点探究了n(S)/n(fe)对CSZVI去除有机污染物的影响。结果表明:蒙脱土负载有效抑制了硫化纳米零价铁(... 详细信息

通过一步法合成了蒙脱土负载硫化纳米零价铁(CSZVI),使用TEM、BET、XRD、XPS、接触角测量仪对CSZVI的表面物化性质和材料结构进行表征,重点探究了n(S)/n(fe)对CSZVI去除有机污染物的影响。结果表明:蒙脱土负载有效抑制了硫化纳米零价铁(SnZVI)的团聚并降低了其粒径;在m(蒙脱土)/m(铁)=5时,CSZVI表现出最高的反应活性,在15 min内对氟苯尼考(ff)的降解效率达到100%;n(S)/n(fe)为0.112时,CSZVI对2,4-二硝基甲苯(DnT)、对硝基苯酚(PnP)、ff、氯霉素(CAP)均表现出最高的反应活性,随着n(S)/n(fe)增加,反应活性均表现出下降趋势;与纯水相相比,在V(水)/V(乙醇)=7∶3的共溶剂体系中,随着n(S)/n(fe)增加其对相对亲水的PnP产生的抑制作用增大,而对相对疏水的ff所产生的抑制作用减小。研究结果证明,n(S)/n(fe)增加会增强CSZVI的表面疏水性,从而提升对疏水污染物降解效率,降低对亲水污染物降解效率。

关键词：纳米零价铁蒙脱土硫化改性有机污染物表面疏水性

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基于拉压转换和变刚度斜坡结构的宽量程压缩传感结构

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Science China Materials 2024年第3期67卷 871-878页

作者：李朋阳熊金华闫倩丁仁杰郑皓文薛福华赵旭陈仲刘宗林唐志共彭庆宇赫晓东 national Key Laboratory of Science and Technology on Advanced Composites in Special Environments Center for Composite Materials and StructuresHarbin Institute of TechnologyHarbin150080China frontiers Science Center for Matter Behave in Space Environment Harbin Institute of TechnologyHarbin 150080China Shenzhen STROnG Advanced Materials Research Institute Co. Ltd.Shenzhen 518000China

压力传感器仍然面临着将高灵敏度与宽检测范围相结合的挑战.基于此,我们设计了一种拉-压转换(TC)结构,并将其与变刚度策略相结合来制造压力传感器件.该结构能够将二维可拉伸材料的传感性能转换为三维可压缩设备的传感性能.传感和机械性... 详细信息

压力传感器仍然面临着将高灵敏度与宽检测范围相结合的挑战.基于此,我们设计了一种拉-压转换(TC)结构,并将其与变刚度策略相结合来制造压力传感器件.该结构能够将二维可拉伸材料的传感性能转换为三维可压缩设备的传感性能.传感和机械性能可以使用模拟和理论计算进行设计.斜面结构能够在24.3 n范围内提供线性传感.变刚度设计策略使传感器能够以高灵敏度(3.5 n^(-1))感知较小载荷,并具有宽的检测范围(0.002–24.300 n,扩展范围82.6 n).此外,该传感结构可以在水下环境中稳定工作.这种使用二维可拉伸应变传感器作为传感单元来开发压缩传感装置的设计策略将为未来提供新的思路.

关键词： nanocomposites strain-sensing film pressure sensor 3D printing variable stif.ness structures

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Binary molten salt in situ synthesis of sandwich-structure hybrids of hollowβ-Mo2C nanotubes and n-doped carbon nanosheets for hydrogen evolution reaction

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Carbon Energy 2023年第12期5卷 111-124页

作者： Tianyu Gong Yang Liu Kai Cui Jiali Xu Linrui Hou haowen Xu Ruochen Liu Jianlin Deng Changzhou Yuan School of Materials Science&Engineering University of JinanJinanPeople's Republic of China School of Chemical Engineering Shandong Institute of Petroleum and Chemical TechnologyDongyingPeople's Republic of China

focused exploration of earth-abundant and cost-efficient non-noble metal electrocatalysts with superior hydrogen evolution reaction(HER)performance is very important for large-scale and efficient electrolysis of ***,a sandwich composite structure(designed as MS-Mo2C@nCnS)ofβ-Mo2C hollow nanotubes(HnT)and n-doped carbon nanosheets(nCnS)is designed and prepared using a binary naCl–KCl molten salt(MS)strategy for *** temperature-dominant Kirkendall formation mechanism is tentatively proposed for such a three-dimensional hierarchical *** to its attractive structure and componential synergism,MS-Mo2C@nCnS exposes more effective active sites,confers robust structural stability,and shows significant electrocatalytic activity/stability in HER,with a current density of 10 mA cm-2 and an overpotential of only 98 mV in 1 M *** f.nctional theory calculations point to the synergistic effect of Mo2C HnT and nCnS,leading to enhanced electronic transport and suitable adsorption free energies of H*(ΔGH*)on the surface of electroactive *** significantly,the MS-assisted synthetic methodology here provides an enormous perspective for the commercial development of highly active non-noble metal electrocatalysts toward efficient hydrogen evolution.

关键词： binary molten-salt synthesis hydrogen evolution reaction Mo2C hollow nanotubes n-doped carbon nanosheets sandwich structure

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阻垢聚合物压裂液的制备及其性能评价

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当代化工研究 2024年第9期 179-181页

作者：袁浩文薛鑫燕马永红李玉龙赖小娟中石化胜利石油工程有限公司井下作业公司山东257200 陕西科技大学陕西省轻化工助剂重点实验室陕西710021 青海油田油气工艺研究院甘肃736202 陕西日新石油化工有限公司陕西710200

为提高阻垢性能和改善生物降解性,本文以丙烯酰胺为主要单体,马来酸酐为阻垢单体,引入2-丙烯酰胺基-2-甲基丙磺酸和甲基丙烯酸,采用水溶液聚合法合成了阻垢压裂液稠化剂(PAM-ZG),并对该压裂液体系进行流变性能评价、阻垢性能评价。结果... 详细信息

为提高阻垢性能和改善生物降解性,本文以丙烯酰胺为主要单体,马来酸酐为阻垢单体,引入2-丙烯酰胺基-2-甲基丙磺酸和甲基丙烯酸,采用水溶液聚合法合成了阻垢压裂液稠化剂(PAM-ZG),并对该压裂液体系进行流变性能评价、阻垢性能评价。结果表明,PAM-ZG溶液经170 s^(-1)剪切后,在90℃和120℃条件下最终黏度分别在99.60 mPa·s和60.15 mPa·s。PAM-ZG压裂液用量对CaCO3、CaSO4和BaSO4垢阻垢效率均大于95%。本文可为油田现场施工“压裂-阻垢”一体化奠定基础。

关键词：压裂液阻垢效率流变性能

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A flexible artificial solid-electrolyte interlayer supported by compactness-tailored carbon nanotube network for dendrite-free lithium metal anode

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Journal of Energy Chemistry 2022年第6期31卷 421-427,I0012页

作者： haowen Liu Jif.ng Zhang Yang Liu Yang Wei Shuaiyang Ren Ludi Pan Yi Su Jianhua Xiao Haiyan f.n Yitao Lin Yipeng Su Yuegang Zhang State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijing 100084China

A dendrite-free lithium metal anode requires a stable interface designed for efficient and reversible lithium plating and stripping. In this work, we have devised a mechanically flexible artificial Li_(3)n solid-electrolyte interlayer supported by a dual-layer compactness-tailored carbon nanotube fiber network. The more compact side of the network ensures a full coverage of Li_(3)n, which prevents the reaction between electrolyte and lithium. The other side, with sparsely distributed nanotube fibers, provides mechanical flexibility for the film, and induces three-dimensional lithium deposition along its structure without any dendrite formation. The resulting full cell with nCM811 cathode has a high capacity retention of 95.1% for 160 cycles compared with less than 80% for the control.

关键词： Lithium metal anode Artificial SEI CnT network 3D deposition

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Carbon Dioxide Captured from flue Gas by Modified Ca-based Sorbents in fixed-bed Reactor at High Temperature

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Chinese Journal of Chemical Engineering 2013年第2期21卷 199-204页

作者： YAnG Lei YU Hongbing WAnG Shengqiang WAnG haowen ZHOU Qibin College of Environmental Science and Engineering Nankai University Tianjin 300071 China

four kinds of Ca-based sorbents were prepared by calcination and hydration reactions using different precursors： calcium hydroxide, calcium carbonate, calcium acetate monohydrate and calcium oxide. The CO2 absorption capacity of those sorbents was investigated in a fixed-bed reactor in the temperature range of 350-650 ℃. It was found that all of those sorbents showed higher capacity for CO2 absorption when the operating temperature higher than 450 ℃. The CaAc2-CaO sorbent showed the highest CO2 absorption capacity of 299 mg.g-1. The mor- phology of those sorbents was examined by scanning electron microscope （SEM）, and the changes of composition before and after carbonation were also determined by X-ray diffraction （XRD）. Results indicated that those sorbents have the similar chemical compositions and crystalline phases before carbonation reaction [mainly Ca（OH）2], and CaCO3 is the main component after carbonation reaction. The SEM morphology shows clearly that the sorbent pores were filled with reaction products after carbonation reaction, and became much denser than before. The n2 adsorption-desorption isotherms indicated that the CaAc2-CaO and CaCO3-CaO sorbents have higher specific surface area. lar2er oore volume and anoropriate pore size distribution than that of CaO-CaO and Ca（OH）2-CaO.

关键词： CO2 capture carbonation reaction fixed-bed reactor multicycle reaction

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GDM患者血清CCL11、IL-13水平预测PE发生风险价值

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中国计划生育学杂志 2024年第10期32卷 2429-2433页

作者：郑皓文戚挺周甜甜马善朵王维俊江苏省连云港市第一人民医院 222000

目的:探讨血清趋化因子配体11(CCL11)、白介素-13(IL-13)水平对妊娠期糖尿病(GDM)患者发生子痫前期(PE)风险的预测价值。方法:回顾性收集2021年9月-2023年8月本院收治的GDM患者144例临床资料,根据是否发生PE分为GDM合并PE组(n=52)和单纯... 详细信息

目的:探讨血清趋化因子配体11(CCL11)、白介素-13(IL-13)水平对妊娠期糖尿病(GDM)患者发生子痫前期(PE)风险的预测价值。方法:回顾性收集2021年9月-2023年8月本院收治的GDM患者144例临床资料,根据是否发生PE分为GDM合并PE组(n=52)和单纯GDM组(n=92),同期产前检查正常孕妇120例作为对照组。比较3组血清CCL11、IL-13水平;采用受试者工作特性(ROC)曲线评估血清CCL11、IL-13对GDM患者发生PE的预测价值;采用二分类logistic逐步回归分析探讨GDM患者发生PE影响因素。结果:血清CCL11水平GDM合并PE组(77.98±8.35 pg/ml)、单纯GDM组(44.69±5.13 pg/ml)、对照组(25.73±4.05 pg/ml)依次降低,血清IL-13水平GDM合并PE组(12.43±2.84 pg/ml)、单纯GDM组(18.23±3.37 pg/ml)、对照组(27.42±4.14 pg/ml)依次升高(均P<0.05)。血清CCL11、IL-13及两项指标联合预测GDM患者发生PE的曲线下面积(AUC)分别为0.768、0.853、0.911,特异度分别为56.1%、65.6%、86.4%,灵敏度分别为90.7%、90.7%、84.5%。回归分析显示,孕前BMI高(OR=2.073)、HOMA-IR高(OR=2.333)、CCL11≥61.10pg/ml(OR=2.697)、IL-13≤15.31pg/ml(OR=0.299)是GDM患者发生PE的独立危险因素(均P<0.05)。结论:GDM患者血清CCL11高表达、IL-13低表达与发生PE有关,且这两项指标可作为预测GDM患者发生PE风险的生物标记物。

关键词：妊娠期糖尿病子痫前期趋化因子配体11 白介素-13 预测价值危险因素

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