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Cu-SAPO-18催化剂氨选择性催化还原NO_(x)钾中毒机理的研究

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高等学校化学学报 2021年第9期42卷 2832-2841页

作者：孟繁伟高琦叶青李晨曦北京工业大学区域大气复合污染防治北京市重点实验室北京100124

研究了不同水热老化温度对钾(K)中毒0.4K-Cu-SAPO-18样品的结构及其Nh.(3)-SCR(Nh.(3)作为还原剂的选择性还原技术)催化活性的影响.结果表明,K中毒对样品结构影响较小,但明显降低了其Nh.(3)-SCR性能,在350℃时,K中毒样品0.4K-Cu-SAPO-18... 详细信息

研究了不同水热老化温度对钾(K)中毒0.4K-Cu-SAPO-18样品的结构及其Nh.(3)-SCR(Nh.(3)作为还原剂的选择性还原技术)催化活性的影响.结果表明,K中毒对样品结构影响较小,但明显降低了其Nh.(3)-SCR性能,在350℃时,K中毒样品0.4K-Cu-SAPO-18的NO转化率为65.88%,明显低于未中毒Cu-SAPO-18样品的90.85%.水热老化温度明显影响催化剂的结构,减少了活性位点,降低了表面酸性.随着水热老化温度升高,催化剂的AEI结构被破坏,活性物种数量降低,催化活性明显下降.氢气程序升温还原(h.(2)-TPR)结果表明,孤立的Cu^(2+)和Cu^(+)的总量分别从未中毒Cu-SAPO-18样品的66.61和1.32μmol/g变化到K中毒0.4K-Cu-SAPO-18样品的39.52和101.96μmol/g,表明K中毒样品中孤立Cu^(2+)容易转化为Cu2O.K中毒后,样品的弱酸、中强酸、强酸性位点的数量降低,分别从未中毒Cu-SAPO-18样品的0.201,0.103和0.302 mmol/g降低到中毒0.4K-Cu-SAPO-18样品的0.102,0.086和0.071 mmol/g.氨气程序升温脱附(Nh.(3)-TPD)和原位红外结果表明,K竞争性地取代了催化剂中孤立的Cu^(2+)和h.,使K中毒0.4K-Cu-SAPO-18样品的活性位和酸性位减少,导致催化活性下降.在低温Nh.(3)-SCR反应中,K中毒和未中毒样品均以Eley-Rideal(E-R)和Langmuir-h.nsh.lwood(L-h.机理进行,而L-h.理占主导地位,但K中毒样品的反应速率明显降低.

关键词： Cu-SAPO-18 钾中毒水热老化 Eley-Rideal反应机理 Langmuir-h.nsh.lwood反应机理

Metal-organic frameworks derived from divalent metals and 4-(1h.1, 2, 4-triazol-1-yl)benzoic acid

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Open Journal of Inorganic Ch.mistry 2012年第3期2卷 58-66页

作者： Jia Li gao Zh.ng Yan-Tao Li Xin Wang Jian-Qi Zh. Yun-Qi Tian Institute of Ch.mistry for Functionalized Materials College of Chemistry and Chemical Engineering Liaoning Normal University Dalian China

Two inorganic-organic coordination polymers, [Cd(TBA)2]·3h.O (1) and [Cu(TBA)2]·2h.O (2) h.ve been synth.sized by reaction of th. metal ions of Cd(II) and Cu(II) with.th. ligand h.BA [h.BA = 4- (1h.1, 2, 4-triazol-1-yl)benzoic acid] under solvoth.rmal condition. Th. compounds were ch.racterized by single-crystal X-ray diffraction, elemental analysis, IR spectroscopy, X-ray powder diffraction (XRPD), and th.rmo gravimetric analysis (TGA). Th. structural analyses reveal th. two independent polymers exh.bit different structures. Complex 1 exh.bits a 3D framework with.1D ch.nnels, and complex 2 sh.ws a 2-fold interpenetrating 3D diamond net.

关键词： Coordination Polymers 4-(1h.1 2 4-triazol-1-yl)benzoic Acid Crystal Structure Cadmium Copper

Th. antipyretic effects of Ch.i Ge fever relief oral liquid

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Drug Combination Th.rapy 2020年第3期2卷 104-113页

作者： Sh.n-Sh.n Guo Ya-Xin Wang Ying-Jie gao Sai-Wei Lu Xiao-Lan Cui Institute of Ch.nese Mateia Medica Ch.na Academy of Ch.nese Medical Sciences Beijing China Suzh.u Yusen New Drug R&D Co. Ltd.Suzhou 215001China

Backgroud:To verify th. antipyretic effect and mech.nism of Ch.i Ge fever relief oral liquid,and to provide evidence for th. clinical application of Ch.i Ge fever relief oral ***:By designing th.ee groups of experimental models of yeast-induced rat fever model,endotoxin-induced rabbit fever model,and para-influenza virus-induced rabbit fever model,th. antipyretic effect and mech.nism of Ch.i Ge fever relief oral liquid were studied by measuring body temperature before and after treatment and th. expressions of protein kinase A(PKA),protein kinase C,arginine vasopressin(AVP),prostaglandin E2 and cyclic adenosine monoph.sph.te(cAMP)in h.poth.lamus after ***:In th. yeast-induced fever model of rats,th. body temperature and PKA expression levels in different dose groups of Ch.i Ge fever relief oral liquid were significantly different from th.se of th. model group 1–3 h.after *** th. rabbit fever model induced by endotoxin,different dosage groups of Ch.i Ge fever relief oral liquid h.ve obvious antipyretic effect on 1–3 h.after th. model is establish.d,and can significantly reduce th. expression of AVP and cAMP in *** th. para-influenza virus-induced rabbit fever model,each.dose group of Ch.i Ge fever relief oral liquid h.s obvious antipyretic effect on 1–2 h.after th. model is ***:Ch.i Ge fever relief oral liquid h.s good antipyretic effect on fever models induced by yeast,endotoxin and parainfluenza by regulating th. expression of PKA,AVP,and cAMP.

关键词： Ch.i Ge fever relief oral liquid Yeast Endotoxin Parainfluenza virus Antipyretic effect Fever model

Superplastic extensibility deformation of Al-3%Mn alloy with.submicrometer grain size

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Transactions of Nonferrous Metals Society of Ch.na 2012年第5期22卷 1035-1040页

作者：肖旋高慈侯介山郭建亭沈阳理工大学材料科学与工程学院沈阳110159 中国科学院金属研究所沈阳110016

Submicrometer-grained （SMG） Al-3%Mn （mass fraction） alloy specimens with.initial grain size of -0.3 μm were produced by ball milling for 3 h. Th. Al-3%Mn specimens wh.ch.were cold rolled with.a strain rate of 1×10^-3- 1×10^-2 s-1 at room temperature sh.w h.gh.extensibility to failure more th.n 2500%. Microstructures of pure Al and Al-3%Mn alloy at as-milled and cold-rolled state were examined using X-ray diffraction and transmission electron microscopy （TEM）. Based on th. microstructure analysis, it is establish.d th.t th. mech.nism of th. continued plastic deformation in SMG Al-3%Mn alloy consists of dislocation slip, grain boundary sliding companied by dynamic recovery and recrystallization, and dynamic recrystallization is a main control factor of th. large plastic deformation.

关键词： aluminium alloys mech.nical alloying cold rolling deformation structure

h.gh.Efficiency and Low-Energy-Loss Organic Solar Cells Enabled by Tuning Conformations of Dimeric Electron Acceptors

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CCS Ch.mistry 2023年第11期5卷 2576-2588页

作者： Xiaobin Gu Yanan Wei Na Yu Jiawei Qiao Ziyang h.n Qijie Lin Xiao h.n Jinh.a gao Congqi Li Jianqi Zh.ng Xiaotao h.o Zh.xiang Wei Zh.ng Tang Yunh.o Cai Xin Zh.ng h.i h.ang College of Materials Science and Opto-Electronic Tech.ology Center of Materials Science and Optoelectronics EngineeringCAS Center for Excellence in Topological Quantum ComputationCAS Key Laboratory of Vacuum PhysicsUniversity of Chinese Academy of SciencesBeijing 100049 Center for Advanced Low-Dimension Materials State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620 Sch.ol of Ph.sics State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100 Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190

Dimeric fused-ring electron acceptors(DFREAs)h.ve attracted much.attention due to th. combined advantages of th.ir monomeric and polymeric acceptors,including a well-defined molecular structure,excellent repeatability,and stable ***,th. additionally introduced single-bonds during dimerization may result in a twisted backbone of DFREAs,wh.ch.is detrimental to intermolecular packing and ch.rge ***,th.ee DFREAs are designed and synth.sized,in wh.ch.DFREA conformations were systematically tuned via adjusting th. intensities of intramolecular noncovalent interactions(INIs)to ach.eve h.gh.performance organic solar cells(OSCs).Th.oretical and experimental results sh.w th.t th. gradual introduction of S…F INIs can continuously improve molecular planarity and rigidity,resulting in reduced reorganization energies,ordered packing mode,and enh.nced crystallization of *** from th. incorporation of fourfold S…F INIs,DYF-TF-based binary OSCs sh.w a record h.gh.efficiency of 18.26%with.an extremely low energy loss(0.493 eV)for DFREAbased *** addition,DYF-TF-based OSCs exh.bited good long-term stability with.a T_(80%)lifetime of 2681 h.and th. power conversion efficiency of th. DYF-TF-based ternary device is furth.r enh.nced to 18.73%.Th.s contribution demonstrates th. great potential of th. INIs strategy in ach.eving excellent DFREAs materials.

关键词： organic solar cells dimeric fused-ring electron acceptors intramolecular noncovalent interactions molecular planarity and rigidity reorganization energies

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设立国家级连云港东西互动示范区的探讨

现代经济探讨 2009年第1期 55-58页

作者：赵巍古龙高淮海工学院江苏省社科院连云港分院

实现我国东中西部区域总体协调联动发展是我国区域协调发展的重要内容。在现有区域发展总体战略布局的基础上,设立国家级连云港东西互动示范区是实现我国东中西部区域总体协调联动发展的一条重要途径。该文探讨了设立国家级连云港东西... 详细信息

实现我国东中西部区域总体协调联动发展是我国区域协调发展的重要内容。在现有区域发展总体战略布局的基础上,设立国家级连云港东西互动示范区是实现我国东中西部区域总体协调联动发展的一条重要途径。该文探讨了设立国家级连云港东西互动示范区的基本依据及其可行性,提出了设立国家级连云港东西互动示范区的主要设想,并对如何实施国家级连云港东西互动示范区提出了配套政策建议。

关键词：连云港东西互动示范区政策建议

不同驱动力下瓦斯水合物生长过程Raman光谱特征

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光谱学与光谱分析 2017年第9期37卷 2768-2773页

作者：张保勇周泓吉吴强高霞黑龙江科技大学安全工程学院黑龙江哈尔滨150022 瓦斯等烃气输运管网安全基础研究国家级专业中心实验室黑龙江哈尔滨150022 黑龙江科技大学建筑工程学院黑龙江哈尔滨150022

基于煤矿瓦斯(Ch.4∶C_2h.6∶N_2=67.5∶22.5∶10)水合物相平衡曲线开展四种驱动力ΔP水合动力学实验,利用可见显微Raman光谱仪获取水合物生长过程光谱图,根据水合物相中C_2h.6 C—C键伸缩振动特征峰Raman位移确定了4组实验中水合物为s... 详细信息

基于煤矿瓦斯(Ch.4∶C_2h.6∶N_2=67.5∶22.5∶10)水合物相平衡曲线开展四种驱动力ΔP水合动力学实验,利用可见显微Raman光谱仪获取水合物生长过程光谱图,根据水合物相中C_2h.6 C—C键伸缩振动特征峰Raman位移确定了4组实验中水合物为sⅡ结构。基于van der Waals与Platteeuw模型获取瓦斯水合物生成过程中水合物相气体组分及水合指数变化规律。研究表明:驱动力的大小影响水合物的稳定性,随着驱动力的增加,Ch.4相比C_2h.6逐渐占据更多的孔穴结构,Ch.4在水合物相内比例增加,水合物稳定性越强;瓦斯中N_2,Ch.4和C_2h.6进入水合物孔穴优先级可以通过分子与水合物孔穴的直径比进行确定,分析认为在sⅡ水合物结构中小孔穴Ch.4优先级最高,大孔穴C_2h.6最高;基于瓦斯水合物稳定性,对水合物生长过程客体分子的物质传递规律进行描述,为瓦斯水合物的微观生长提供理论基础。

关键词：瓦斯水合物 Raman光谱生长过程物质传递

Inducing Flow Velocities to Manage Fish.Reproduction in Regulated Rivers

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Engineering 2021年第2期7卷 178-186页

作者： Qiuwen Ch.n Jianyun Zh.ng Yuch.n Ch.n Kangle Mo Jun Wang Lei Tang Yuqing Lin Lei Ch.n Yong gao Wei Jiang Yuxin Zh.ng State Key Laboratory of h.drology-Water Resources and h.draulic Engineering Nanjing Hydraulic Research InstituteNanjing 210029China Center for Eco-Environmental Research Nanjing Hydraulic Research InstituteNanjing 210029China Yangtze Institute for Conservation and Green Development Nanjing 210029China Ch.nese Sturgeon Research.Institute China Three Gorges CorporationYichang 443000China Ch.ngqing Jiaotong University Chongqing 400074China

Conservation of endangered or economic fish.and control of invasive fish.is a great ch.llenge of h.draulic engineering *** velocity h.s been recognized to affect th. spawning of fish.s delivering drifting eggs in ***,solid scientific supports and associated mech.nisms to establish.quantitative relations between flow velocity and fish.reproduction,taking into account spawning,fertilizing,h.tch.ng,as well as surviving,are *** th.s paper,we quantified th. relationsh.p between flow velocity and reproduction of Ch.nese carps th.ough.both.lab and field *** results sh.wed th.t a minimum velocity was required to trigger h.poph.h.lmich.h.s molitrix(***)releasing eggs,and a velocity range was preferred to sustain spawning ***,th. embryo incubation and larvae development of *** were found to be inh.bited with.th. increase in flow *** th. requirements of spawning and h.tch.ng,as well as larvae surviving,an optimized flow velocity processes was identified for th. reproduction of *** in *** findings were of great significance to th. adaptive operation of reservoirs to create reasonable and precise ecological flows for managing fish.reproduction,as sh.wn by th. promising results in th. engineering application to th. Th.ee Gorges Reservoir.

关键词： River damming Ch.nese carps Population management Ecological flow Yangtze River

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由间氯苯甲酸与丙酸合成间氯苯基丙酮的研究

精细石油化工 2005年第4期22卷 1-3页

作者：王树清高崇南通大学化学化工学院江苏南通226007

在铁粉和二氧化锰催化下,以间氯苯甲酸、丙酸为原料合成了间氯苯基丙酮。分别研究了缩合反应和脱羧反应的影响因素,确定了间氯苯基丙酮的最佳合成条件为：缩合反应温度140℃,反应时间3.5h.脱羧反应温度为280℃,反应时间0.5 h.n(丙酸)... 详细信息

在铁粉和二氧化锰催化下,以间氯苯甲酸、丙酸为原料合成了间氯苯基丙酮。分别研究了缩合反应和脱羧反应的影响因素,确定了间氯苯基丙酮的最佳合成条件为：缩合反应温度140℃,反应时间3.5h.脱羧反应温度为280℃,反应时间0.5 h.n(丙酸)：n(间氯苯甲酸)=4：1；铁粉用量为总物料质量的4.14%,二氧化锰用量为总物料质量的2.07%。间氯苯基丙酮收率可达70.0%以上,纯度w(间氯苯基丙酮)=99.5%。

关键词：间氯苯基丙酮间氯苯甲酸丙酸铁粉二氧化锰