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Oxidative aromatization of 3,5-disubstituted 2-isoxazolines by nitric oxide

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chinese chemical Letters 2007年第7期18卷 788-790页

作者： Rui li Wen Tao Wu Guai li Wu Yuan Fan Long Min Wu State Key Laboratory of Applied Organic chemistry Lanzhou University Lanzhou 730000 China

3,5-Disubstituted 2-isoxazolines were oxidized to corresponding isoxazoles by nitric oxide in dichloromethane. The reaction more likely occurred via a one-electron transfer process.

关键词： 2-Isoxazolines Nitric oxide 2-Isoxazole Aromatization

An Efficient catalyst for the Direct Synthesis of N-Phenylpyrrolidine

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chinese chemical Letters 2006年第12期17卷 1540-1542页

作者： chun Mei li Zhi li MIAO Lei SHI qi SUN Yu Hong HE Institute of chemistry for Functionalized Materials Faculty of Chemistry and Chemical Engineering Liaoning Normal University Dalian 116029 liaoyuan Health School Liaoyuan 136200

N-Phenylpyrrolidine was efficiently synthesized over the mesoporous A1203 catalyst by the reaction of the aniline and 1,4-butylene-glycol at atmospheric pressure. The catalyst exhibited very high activity and selectivity. At the reaction temperature of 300~c, 1,4-butylene glycol conversion attained 100% and the selectivity of N-phenylpyrrolidine could exceed 98%.

关键词： Synthesis of N-phenylpyrrolidine mesoporous A1203 catalyst activity selectivity,aniline 1,4-butylene glycol.

Future Physics Programme of BESⅢ

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chinese Physics c 2020年第4期44卷 I0001-I0004,1-102页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht M.Alekseev A.Amoroso F.F.An q.An Y.Bai O.Bakina R.Baldini Ferroli Y.Ban K.Begzsuren J.V.Bennett N.Berger M.Bertani D.Bettoni F.Bianchi J Biernat J.Bloms I.Boyko R.A.Briere L.calibbi H.cai X.cai A.calcaterra G.F.cao N.cao S.A.cetin J.chai J.F.chang W.L.chang J.charles G.chelkov chen G.chen H.S.chen J.c.chen M.L.chen S.J.chen Y.B.chen H.Y.cheng W.cheng G.cibinetto F.cossio X.F.cui H.L.Dai J.P.Dai X.c.Dai A.Dbeyssi D.Dedovich Z.Y.Deng A.Denig Denysenko M.Destefanis S.Descotes-Genon F.De Mori Y.Ding c.Dong J.Dong L.Y.Dong M.Y.Dong Z.L.Dou S.X.Du S.I.Eidelman J.Z.Fan J.Fang S.S.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici c.q.Feng M.Fritsch c.D.Fu Y.Fu q.Gao X.L.Gao Y.Gao Y.Gao Y.G.Gao Z.Gao B.Garillon I.Garzia E.M.Gersabeck A.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu Y.T.Gu A.q.Guo F.K.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov S.Han X.q.Hao F.A.Harris K.L.He F.H.Heinsius T.Held Y.K.Heng Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang J.S.Huang X.T.Huang X.Z.Huang Z.L.Huang N.Huesken T.Hussain W.Ikegami Andersson W.Imoehl M.Irshad q.Ji q.P.Ji X.B.Ji X.L.Ji H.L.Jiang X.S.Jiang X.Y.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin Y.Jin T.Johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.c.Ke I.K.Keshk T.Khan A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.Kurth M.G.Kurth W.Kuhn J.S.Lange P.Larin L.Lavezzi H.Leithoff T.Lenz c.li cheng li D.M.li F.li F.Y.li G.li H.B.li H.J.li J.c.li J.W.li Ke li L.K.li Lei li P.L.li P.R.li q.Y.li W.D.li W.G.li X.H.li X.L.li X.N.li X.q.li Z.B.li H.liang H.liang Y.F.liang Y.T.liang G.R.liao L.Z.liao J.libby c.X.lin D.X.lin Y.J.lin B.liu B.J.liu c.X.liu D.liu D.Y.liu F.H.liu Fang liu Feng liu H.B.liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.Y.liu K.Y.liu Ke liu q.liu S.B.liu T.liu X.liu X.Y.liu Y.B.liu Z.A.liu Zhiqing liu Y.F.Long X.c.Lou H.J.Lu J.D.Lu J.G.Lu Y.Lu Y.P.Lu c.L.Luo M.X.Luo P.W.Luo T.Luo X.L.Luo S.Lusso X.R.Lyu F.c.Ma H.L.Ma L.L.Ma M.M.Ma q.M.Ma X.N.Ma X.X. Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany carnegie Mellon University PittsburghPennsylvania 15213USA central china Normal University Wuhan 430079China china center of Advanced Science and Technology Beijing 100190China cOMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Huangshan college Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Ferrara I-44122FerraraItaly Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-cART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing University Nanjing 210093China Nankai University Tianjin 300071China Peking University Beijing 100871China Shandong University Jinan 250100China Shanghai

There has recently been a dramatic renewal of interest in hadron spectroscopy and charm physics. This renaissance has been driven in part by the discovery of a plethora of charmonium-like XYZ states at BESⅢ and B factories, and the observation of an intriguing proton-antiproton threshold enhancement and the possibly related X(1835) meson state at BESⅢ, as well as the threshold measurements of charm mesons and charm baryons. We present a detailed survey of the important topics in tau-charm physics and hadron physics that can be further explored at BESⅢ during the remaining operation period of BEPcⅡ. This survey will help in the optimization of the data-taking plan over the coming years, and provides physics motivation for the possible upgrade of BEPcⅡ to higher luminosity.

关键词： meson hadron optimization

Self-assembly of single metal sites embedded covalent organic frameworks into multi-dimensional nanostructures for efficient cO_(2) electroreduction

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chinese chemical Letters 2022年第3期33卷 1439-1444页

作者： Yi-Lu Yang Yi-Rong Wang Guang-Kuo Gao Ming liu chang Miao Le-Yan li Wei cheng Zi-Yue Zhao Yifa chen Zhifeng Xin Shun-li li Dong-Sheng li Ya-qian Lan Jiangsu collaborative Innovation centre of Biomedical Functional Materials Jiangsu Key Laboratory of New Power BatteriesSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023China School of chemistry South China Normal UniversityGuangzhou 510006China Institute of Molecular Engineering and Applied chemistry Anhui University of TechnologyMa'anshan 243002China college of Materials and chemical Engineering Hubei Provincial Collaborative Innovation Center for New Energy MicrogridKey Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang 443002China

Morphology-controlled electrocatalysts with the ability of cO_(2) adsorption/activation, mass transfer, high stability and porosity are much desired in electrochemical cO_(2) reduction reaction (cO_(2)RR). Here, three kinds of multi-dimensional nanostructures (i.e., hollow sphere, nanosheets and nanofibers) have been successfully produced through the modulation of porphyrin-based covalent organic frameworks (cOFs) with various modulators. The obtained nanostructures with high-stability, large surface-area, and single metal sites enable efficient cO_(2)RR into cH_(4). Notably, they all exhibit higher FE (hollow sphere, 68.2%;nanosheet, 64.2% and nanofiber, 71.0%, -0.9 V) than cOF-366-cu (43.0%, -0.9 V) after morphology control. Noteworthy, the FE of cOF-366-cu (HS) keeps higher than 52.4% over a wide potential range from -0.9 V to -1.1 V and the achieved FEcH_(4) + c_(2)H_(4) (82.8%, -0.9 V) is superior to most of reported cOFs and copper-based electrocatalysts. This work paves a new way in the exploration of cOF-based multi-dimensional nanostructures applicable in efficient cO_(2)RR to cH_(4).

关键词： cO_(2)electroreduction covalent organic frameworks Hollow sphere Nanofiber Nanosheet

Study on high-pressure metal hydride hydrogen compressors

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Study on high-pressure metal hydride hydrogen compressors

Microstructure,elastic/mechanical and thermal properties of crTaO_(4):A new thermal barrier material?

第九届全国氢能学术会议

作者： X.H.Wang,J.K.Yang,H.li,Y.Zhang,L.X.chen,c.R chen and q.D.Wang Zhejiang University,china

＜正＞It is well known that metal hydrides can be used to compress *** the present study,rare earth-based and Ti-based multicomponent hydrogen storage alloys have been studied for the purpose of high-pressure hydrogen *** stage metal hydride hydrogen compressors with the hydrogen capacity of 1000 L and a double stage compressors

关键词：

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Journal of Advanced ceramics 2024年第3期13卷 373-387页

作者： Shuang Zhang Xiaohui Wang chao Zhang Huimin Xiang Yingwei li cheng Fang Mingliang li Hailong Wang Yanchun Zhou School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of civil Engineering Wuhan UniversityWuhan 430072China

crTaO_(4)(or cr_(0.5)Ta_(0.5)O_(2))has been unexpectedly found to play a decisive role in improving the oxidation resistance of cr and Ta-containing refractory high-entropy alloys(RHEAs).This rarely encountered complex oxide can effectively prevent the outward diffusion of metal cations from the ***,the oxidation kinetics of crTaO_(4)-forming RHEAs is comparable to that of the well-known oxidation resistant cr_(2)O_(3)-and Al_(2)O_(3)-forming Ni-based ***,crTaO_(4)has been ignored and its mechanical and thermal properties have yet to be *** fill this research gap and explore the untapped potential for its applications,here we report for the first time the microstructure,mechanical and thermal properties of crTaO_(4)prepared by hot-press sintering of solid-state reaction synthesized *** the HAADF and ABF-STEM techniques,rutile crystal structure was confirmed and short range ordering was directly *** addition,segregation of Ta and cr was ***,crTaO_(4)exhibits elastic/mechanical properties similar to those of yttria stabilized zirconia(YSZ)with Young’s modulus,shear modulus,and bulk modulus of 268,107,and 181 GPa,respectively,and Vickers hardness,flexural strength,and fracture toughness of 12.2±0.44 GPa,142±14 MPa,and 1.87±0.074 MPa·m^(1/2).The analogous elastic/mechanical properties of crTaO_(4)to those of YSZ has spurred inquiries to lucrative leverage it as a new thermal barrier *** measured melting point of crTaO_(4)is 2103±20 *** anisotropic thermal expansion coefficients areα_(a)=(5.68±0.10)×10^(-6)K^(-1),α_(c)=(7.81±0.11)×10^(-6)K^(-1),with an average thermal expansion coefficient of(6.39±0.11)×10^(-6)K^(-1).The room temperature thermal conductivity of crTaO_(4)is 1.31 W·m^(-1)·K^(-1)and declines to 0.66 W·m^(-1)·K^(-1)at 1473 K,which are lower than most of the currently well-known thermal barrier *** the perspective of matched thermal expansion coefficient,crTaO_(4)per

关键词： microstructure synthesis thermal conductivity thermal expansion coefficient melting point crTaO_(4) mechanical and thermal properties

Projectile Fragmentation in ^(20)Ne-^(165)Ho Reaction at 45 MeV/u

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chinese journal of nuclear physics 1995年第3期17卷 228-233页

作者： G.X.Dai J.B.Natowitz R.Wada K.Hagel q.Z.Luo Z.Y.He J.Blackadar S.Lee J.T.li Y.N.Lou D.Utley B.Xiao Institute of Modern Physics Chinese Academy of SciencesP.O.Box 31Lanzhou 7300002 Cylotron Institute and Physics DepartmentTexas A & M UniversityCollege StationTexas 77843 cylotron Institute and Physics Department Texas A & M UniversityCollege StationTexas 77843 Institute of Modern Physics Chinese Academy of SciencesP.O.Box 31Lanzhou 7300002

At 45 MeV/u an experiment on fragmentation of projectile(20Ne)on 165Ho was *** average reduced width σ0 of 84.3±6.6 MeV/c was obtained by separating the break=up of all com-plex fragments of 20Ne from the evaporatio... 详细信息

关键词： Projectile fragmentation Reduced width of Fermi momentum 20Ne+165Ho reaction

Synthesis, Fluorescence and Dielectric Properties of Two Novel compounds Based on Triethylenediamine Derivatives

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chinese Journal of Structural chemistry 2019年第4期38卷 605-612页

作者： DENG Si-Yu qIAN Xiu li Mu cHEN li-Zhuang School of Environmental and chemical Engineering Jiangsu University of Science and Technology

Two compounds c_8H_(18)N_2Br_3Mn_(0.5)(1) and c_(12)H_(26)N_2cl_4Mn(2) based on triethylenediamine derivatives were synthesized by solution method and were characterized by elemental analysis, infrared spectroscopy, single-crystal X-ray structure analysis, fluorescence test, circular dichroism(cD) analysis and dielectric measurement, respectively. According to single-crystal X-ray determination, compound 1 crystallizes in the cubic system, space group Pa3 with a = b = c = 13.7246(5) ?, Z = 24, V = 2585.2(3) ?~3; and compound 2 crystallizes in the orthorhombic system, space group P212121 with a = 7.9716(13), b = 15.309(3), c = 15.804(3) ?, Z = 4 and V = 1928.7(6) ?3. Fluorescent analysis of compound 1 showed an intense emission band at 670 nm when the exciting radiation was set at 378 nm and fluorescent analysis of compound 2 showed an intense emission band at 515 nm when the exciting radiation was set at 363 nm. Dielectric constants of compounds 1 and 2 were measured at different frequencies with temperature variation.

关键词： triethylenediamine derivatives fluorescent compounds crystal structure permittivity properties

Magnetic Fluid Flows in Porous Media

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chinese Physics Letters 2011年第8期28卷 198-201页

作者： li Ming-Jun cHEN liang Hunan Key Laboratory for computation and Simulation in Science and Engineering School of Mathematics and Computational ScienceXiangtan UniversityXiangtan 411105

The seepage law under a magnetic field is obtained by up-scaling the flow at the pore scale of rigid porous media,and the macroscopic equivalent model is also *** is proved that the macroscopic mass flow depends on the macroscopic magnetic force and the gradients of pressure and of magnetic pressure,as Zahn and Rosensweig have described in their *** permeability tensor is symmetric and positive.

关键词： macroscopic Porous magnetic