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3D ball-type self-assemble CeO_(2) nanostructure produced by facile hydrothermal strategy for catalytic wet air oxidation of n,n-dimethylformamide

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Journal of Rare Earths 2023年第8期41卷 1179-1188,I0003页

作者： Sajid Ali Yue Jiang Zhirong Lai Peipei Zhang Songshou Ye Jiexiang Wang Jile Fu nuowei Zhang Jinbao Zheng Binghui Chen national Engineering Laboratory for Green Productions of Alcohols-Ethers-Esters Department of Chemical and Biochemical EngineeringCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China School of Energy and Chemical Engineering Xiamen University Malaysia CampusJalan SunsuriaBandar Sunsuria43900SepangMalaysia

CeO_(2)plays an important role in heterogeneous catalysis,and its performance is highly dependent on the oxygen vacancies and surface defects,which can be easily tuned by manipulating the particle dimensions and *** this article,we report a facile strategy to synthesize a new type of CeO_(2)with modified surface property which can improve its ability to active *** obtained ball-type 3D selfassemble CeO_(2)(M-CeO_(2)) is composed of large amounts of small 1D crystals which are stro ngly connected with each *** characterizations confirm its morphology,particle size and improved reducibility with abundant fraction of Ce^(3+)and more surface active oxygen when compared with CeO_(2)-nanorods and CeO_(2)-*** the catalytic wet air oxidation(CWAO)of n,n-dimethylfo rmamide,the total organic carbon(TOC)and total nitrogen(Tn)conversion of M-CeO_(2)at 180℃in 3 h are 68%and 46%,respectively,which are higher than that of CeO_(2)-nanorods and CeO_(2)-***,M-CeO_(2) presents the lowest activation energy,which is related to its modified surface *** good stability with consecutive four reactions of M-CeO_(2)in catalytic reactions suggests its potential application in CWAO processes for industrial wastewater treatment.

关键词： Ethylene glycol neutralization 3D self-assemble CeO_(2) Ce^(3+)fraction n,n-dimethylformamide Rare earths

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Metal-free synthesis of 3-trifluoromethyl-1,2,4-triazoles via oxidative cyclization of trifluoroacetimidohydrazides with n,n-dimethylformamide as carbon synthons

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Green Synthesis and Catalysis 2022年第4期3卷 385-388页

作者： Shu-ning Lu Jiajun Zhang Jingxian Li Zhengkai Chen Xiao Feng Wu Department of Chemistry Key Laboratory of Surface&Interface Science of Polymer Materials of Zhejiang ProvinceZhejiang Sci-Tech UniversityHangzhou 310018China Dalian national Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straβe 29aRostock 18059Germany

A metal-free approach for the synthesis of 3-trifluoromethyl-1,2,4-triazoles via I2-mediated oxidative cyclization of readily accessible trifluoroacetimidohydrazides with n,n-dimethylformamide(DMF)has been *** this transformation,the commonly used organic solvent DMF is applied as a C1 synthon and the methine unit of the 1,2,4-triazole products is independently from n-methyl and n-acyl of *** application potential of the developed method has been demonstrated by the synthesis of the key skeleton of factor IXa inhibitors.

关键词： Metal-free Oxidative cyclization 3-Trifluoromethyl-1,2,4-triazole Trifluoroacetimidohydrazides n,n-dimethylformamide Trifluoromethyl-substituted n-Heterocycles

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Effect of Cu-ZSM-5 catalysts with different CuO particle size on selective catalytic oxidation of n,n-dimethylformamide

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Frontiers of Environmental Science & Engineering 2022年第10期16卷 1-10页

作者： Xin Xing na Li Dandan Liu Jie Cheng Zhengping Hao College of Environmental Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China national Engineering Laboratory for VOCs Pollution Control Material&Technology Research Center for Environmental Material and Pollution Control TechnologyUniversity of Chinese Academy of SciencesBeijing 101408China

n,n-dimethylformamide(DMF),a nitrogen-containing volatile organic compound(nVOC)with high emissions from the spray industry,has attracted increasing *** this study,Cu-ZSM-5 catalysts with different CuO particle sizes of 3,6,9 and 12 nm were synthesized and tested for DMF selective catalytic *** crystal structure and physicochemical properties of the catalyst were studied by various characterization *** catalytic activity increases with increasing CuO particle size,and complete conversion can be achieved at 300-350℃.The Cu-12 nm catalyst has the highest catalytic activity and can achieve complete conversion at 300℃.The Cu-6 nm sample has the highest n_(2)selectivity at lower temperatures,reaching 95%at 300℃.The activity of the catalysts is determined by the surface CuO cluster species,the bulk CuO species and the chemisorbed surface oxygen *** high n_(2)selectivity of the catalyst is attributed to the ratio of isolated Cu2+and bulk CuO species,and weak acidity is beneficial to the formation of n_(2).The results in this work will provide a new design of nVOC catalytic oxidation catalysts.

关键词： n,n-dimethylformamide Selective catalytic oxidation Cu-ZSM-5 CuO particle size

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BInUCLEAR COPPER(Ⅱ) COMPLEXES OF SOME PLAnT GROWTH-STIMULATInG SUBSTAnCES Ⅱ. SYnTHESES AnD STRUCTURES OF BIS(n,n-dimethylformamide)-TETRAKIS-[μ-(n-p-(AnD m-)METHYLPHEnYLPHTHALAMInO)]DICOPPER(Ⅱ)TETRAKIS(n,n-dimethylformamide) SOLVATE

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Chinese Journal of Structural Chemistry 1988年第2期 124-129页

作者： Yu Xiufen Huang Zhongle Zhang HanhuiFuzhou Laboratory of Structural Chemiatry, Fujian Institute of Research on the Structure of Matter, Acadenua Sinica, and Department of Chemistry, Fuzhou University

[Cu2( -C-n-C6H4CH3-p)4(DMF)2]-4DMF(1), Mr = 1582.7, triclinic,Pl, a = 10.761(1), b = 13.930(3), c = 15.116(3) A;α= 114.74(1),β= 101.82 (1),r= 95.85(1)°,V = 1969.0 A3,Z=1,Dm= 1.36,DC =1.335 g/cm3.[Cu2(-C-n-C6H4Ch3-M)4.(DF)2].4DMF(2), Mr = 1582.7, triclinic, Pl,a = 10.588(5), b = 13.699(2), c = 15.759(4) A;α= 114.88(2),β= 103.89(3), γ=92.56(3)°, V =1985.3 A3, Z = 1, 0. = 1.39,Dc= 1.324 g/*** four phthalamine groups in molecules of (1) and (2) are all biden-tate bridging ligands to Cu atoms and there are two terminal DMF ligands, one on each Cu atom. The Cu-Cu distances are 2.635(1) and 2.641(1) A for (1) and (2) respectively.

关键词： Cu SYnTHESES AnD STRUCTURES OF BIS AnD m BInUCLEAR COPPER DICOPPER METHYLPHEnYLPHTHALAMInO n,n-dimethylformamide n-p SOLVATE TETRAKIS

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BInUCLBAB COPPER(Ⅱ) COMPLEXES OF SOME PLAnT GROWTH-STIMULATInG SUBSTAnCES.Ⅰ.SYnTHESIS AnD STRUCTURE OF BIS(n,n-dimethylformamide)-TETHAKIS(μ-InDOLYL-3-ACETOXY) DICOPPER(Ⅱ)

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结构化学 1988年第2期 130-132页

作者： Huang Zhongle Yu XiufenFuzhou Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Academia Sinica, and Department of Chemistry, Fuzhou University

The structure of the title compound (Mr = 969.99) has been determined by X-ray analysis. The crystals are monoclinic, space group P21/n with a =14.746(2),b= 10.782(7), c = 15.531(3) A,β=113.74(2)°,Z=2,and DC=1.425g... 详细信息

关键词： SYnTHESIS AnD STRUCTURE OF BIS TETHAKIS COMPLEXES OF SOME PLAnT GROWTH-STIMULATInG SUBSTAnCES DICOPPER InDOLYL-3-ACETOXY n,n-dimethylformamide BInUCLBAB COPPER

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Dissolution Properties of 3,4,5-Triamino-1,2,4-Triazole Dinitramidein n-methyl-2-Pyrrolidone and n,n-dimethylformamide

Dissolution Properties of 3,4,5-Triamino-1,2,4-Triazole Dini...

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中国化学会第十五届全国化学热力学和热分析学术会议

作者： Xue Liang~(1 2) Zhao Feng-Qi~(2*) Xing Xiao-Ling~2 Zhou Zhi-Ming~3 Wang Kai~3 Yi Jian-Hua~2 Xu Si-Yu~1 Gao Hong-Xu~2 Pei Qing Hu Rong-Zu~2 1 School of Chemistry and Materials Science Shaanxi normal University Xi’an City 710062 2 national Key Lab of Science and Technology on Propellant and Explosive Combustion Xi’an City 710065 3 School of Chemical Engineering and Environment Beijing Institute of Technology Beijing 100081

＜正＞Ionic liquids attract increasing attention among academic and industrial chemists for their unique ***,many studies in developing energetic salts and energetic ionic liquids based on 1,2,3-triazole and 1,2,4-tri... 详细信息

关键词： 3,4,5-Triamino-1,2,4-triazole dinitramide Dissolution n-methyl-2-pyrrolidone n,n-dimethylformamide kinetics

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Dissolution Kinetics of 1,3,3-Trinitroazetidine in n,n-dimethylformamide

Dissolution Kinetics of 1,3,3-Trinitroazetidine in N,N-Dimet...

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中国化学会第五届全国热分析动力学与热动力学学术会议

作者： Gao Hong-Xu Xiao Libai Zhao Fengqi Luo Yang Li na Science and Technology on Combustion and Explosion Laboratory Xi’an Modern Chemistry Research Institute

1,3,3-Trinitroazetidine（TnAZ）is a high performance and melt castable explosive that has been proposed as potential replacement for *** low melt point（101℃）and good thermal stability（＞180℃）of TnAZ enable its applications as energetic component whilst its performance is approximately 30%greater than TnT’*** is reported that TnAZ is highly energetic material and more powerful than RDX,and it is less vulnerable than most other *** enthalpies of dissolution for 1,3,3-Trinitroazetidine（TnAZ）in n,n-dimethylformamide（DMF）were measured using a RD496-2000 Calvet microcalorimeter at 298.15 *** formula for the calculation of the enthalpies of dissolution（AdissH）obtained from the experimental data of the dissolution processes of TnAZ in DMF wasΔdissH=21.64-176.24 b1/2+446.52 *** corresponding kinetic equation describing the dissolution processe was dα/dt=10-1.78（1-α）0.84 for the dissolution of TnAZ in DMF.

关键词： 1,3,3-Trinitroazetidine dissolution kinetics n,n-dimethylformamide

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Electrochemical Behavior of Polyoxometalates [XW11MoO40]^n- （X=P, Si, Ge with n=3, 4） in Aqueous and DMF Solution

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Chinese Journal of Chemistry 2006年第3期24卷 316-320页

作者：崔杨许林王文举高广刚王恩波 Department of Chemistry Northeast Normal University Changchun Jilin 130024 China

The electrochemical behavior of monomolybdenum-substituted Keggin-type polyoxometalates [XW11MoO40]^n- （X=P, Si, Ge with n=3, 4） was studied in aqueous and n,n-dimethylformamide （DMF） solution. These anionic clusters showed different electrochemical behaviors in two kinds of media. The initial potentials of [XW11MoO40]^n- in DMF were more negative than those in aqueous solution, showing a lower oxidation ability of [XW11MoO40]^n- in DMF. The investigation results suggested that the redox properties of polyoxometalates be tuned by the substitutions of Mo for W and by replacing aqueous solution with organic solvent, which provided valuable information to rationally choose polyoxometalates （POM） in preparation of POM-based organic/inorganic hybrid materials.

关键词： polyoxometalate cyclic voltammetry aqueous solution n,n-dimethylformamide

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An Efficient and Green Approach to Synthesizing Enamines by Intermolecular Hydroamination of Activated Alkynes

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Chemical Research in Chinese Universities 2015年第2期31卷 212-217页

作者： ZEnG Ruijie SHEnG Hongting RAO Bo FEnG Yan WAnG Hao SUn Yehua CHEn Man ZHU Manzhou School of Chemistry and Chemical Engineering Anhui University Hefei 230601 P. R. China

An efficient, atom-economic and green approach to synthesizing enamines was developed by intermolecular hydroamination of activated alkynes with high yields under catalyst- and solvent-free conditions. β-Dimethylamino-acrylate derivatives were also obtained with high yields. In the synthetic process of the derivatives, n,n-dimethylformamide（DMF） pretreated with metal na, was used as reactant instead of dimethylamine gas. The proposed synthetic method can be used for the synthesis of （E）-ethyl-3-（dimethylamino）acrylate（3cl）, and provide a new possible way to the synthesis of Quinolones.

关键词： Enamine Hydroamination Activated alkyne Catalyst-free Solvent-free n,n-dimethylformamide

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Cobalt Porphyrin Catalyzed Carbon-Carbon Bond Transfer Hydrogenation with DMF

Cobalt Porphyrin Catalyzed Carbon-Carbon Bond Transfer Hydro...

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中国化学会第四届卟啉与酞菁学术研讨会

作者： Chun Meng Tam Ching Tat To Kin Shing Chan Department of Chemistry The Chinese University of Hong Kong

The Co(ttp) catalyzed carbon-carbon bond transfer hydrogenation of [2.2]paracyclophane(PCP) with DMF was *** investigation suggested that the benzylic carbon-carbon bond of PCP reacts with Co II(ttp) to generate 1,subsequent homolysis of Co-C bond and hydrogen atom abstraction yield 2 and regenerate the Co(ttp) *** mechanism of cobalt porphyrin catalysis is distinctly different from the rhodium and iridium catalyses.1,2

关键词： C-C bond hydrogenation transfer hydrogenation cobalt porphyrin n,n-dimethylformamide

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