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OXIDATIVE COUPliNG OF METHANE OVER Mn2O3-Na2WO4/SiO2 CATALYST IN THE ABSENCE OF DILUTE GAS

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Journal of Energy Chemistry 1995年第3期 337-343页

作者： wu jin-gang li shu-benstate key laboratory of oxo synthesis and selective oxidation lanzhou institute of chemical physics, academia Sinica lanzhou, gansu 730000

The oxidative coupling of methane over Mn2O3-Na2WO4/SiO2 catalyst has been investigated in the absence of dilute gas. 16.4% of C2 yield and 80.4% of the selectivity to C2 hydrocarbons were obtained at CH4/O2 = 8.5/1.5. The effect of flow rate on the selectivity to C2 hydrocarbons and CH4 conversion was different under the reaction condition of different ratio of CH4 to oxygen. The flow rate had a more remarkable effect on the selectivity at the lower ratio of methane to oxygen. The addition of steam into the reaction gas can increase C2 yield to some extent, but that of HC1 decrease the selectivity to C2 hydrocarbons.

关键词： oxidative coupling of methane Mn2O3-Na2WO4/SiO2 no dilute gas

OXIDATIVE COUPliNG OF METHANE OVER Mn2O3-Na2WO4/SiO2 CATALYST Ⅰ.CHARACTERIZATION OF ACTIVE SITES ON THE CATALYST

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Journal of Energy Chemistry 1995年第1期 91-96页

作者： wu jin-gang li shu-benstate key laboratory of oxo synthesis and selective oxidation Ijmzhau institute of chemical physics, Academa Smica lanzhou gansu 730000

EPR and Raman spectroscopy have been used to characterize the catalyst. F-centers with EPR parameter of g=2. 0046 form when gas phase oxygen is admitted onto the catalyst reduced with methane at 800℃- Molecular oxygen plays an induced role in the electron transfer from W4+ to the oxygen ion vacancy which is produced by methane reduction. Raman spectra give the further evidence for the production of lattice oxygen from molecular oxygen.

关键词： oxidative coupling of methane Mn2O3 Na2WO4 active sites

OXIDATIVE COUPliNG OF METHANE OVER Mn2O3-Na2WO4/SiO2 CATALYST Ⅱ.KINETIC STUDY

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Journal of Energy Chemistry 1995年第2期 219-223页

作者： wu jin-gang li shu-benstate key laboratory of oxo synthesis and selective oxidation,lanzhou institute of chemical physicsAcaiema Suacalanzhou,gansu 730000

The kinetics of methane oxidative coupling over MnO-NaWO/SiOcatalyst has been studied. Kinetic study carried out under differentconditions gave fractional reaction orders and apparent activation enetgy formethane conversion of 243. 3 kJ/*** kinetic results are interpreted via areaction model condsting of Rideal-redox mechanism. Methyl radical andsurface oxygen are assumed as the steady-state intermediates. The constants,k, k, x and k/kwere obtained fot every temperature. The activity is relatedto kand k, while the selectivity （C/C） is related to k/k.

关键词： oxidative coupling of methane Na2WO4 Mn2O3 kinetics

Asymmetric synthesis of Chiral Clusters Induced by Chiral Phase-Transfer Catalyst

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分子催化 1998年第3期 2-3页

作者： wu shulin DING Errun li Qingshan YIN Yuanqi1)(State key laboratory of oxo synthesis and selective oxidation lanzhou instituteof chemical physics The Chinese Academy of Sciences lanzhou 730000)

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ＡｓｙｍｍｅｔｒｉｃＳｙｎｔｈｅｓｉｓｏｆＣｈｉｒａｌＣｌｕｓｔｅｒｓＩｎｄｕｃｅｄｂｙＣｈｉｒａｌＰｈａｓｅ－ＴｒａｎｓｆｅｒＣａｔａｌｙｓｔＷＵＳｈｕｌｉｎＤＩＮＧＥｒｒｕｎＬＩＱｉｎｇｓｈａｎＹＩＮＹｕａｎｑｉ１）（ＳｔａｔｅＫｅｙＬａｂｏｒａ...

关键词： Chiral cluster Phasetransfer catalyst Asymmetric synthesis

Structural Characterization of the Chiral Skeleton ClusterRuCoMo (Co)_8(μ_3-Se ) C_5H_4C (O) C_6H_4C (O)OCH_3

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Chinese Journal of Structural Chemistry 1998年第5期17卷 372-376页

作者： DING Er-Run li Qing-Shan wu shu-lin YIN Yuan-Qi(State key laboratory of oxo synthesis and selective oxidation,lanzhou institute of chemical physics, the Chinese Academy of Sciences, lanzhou 730000)SUN Jie (Shanghai institute of Organic Chemistry, the C State key Lab. oxo synthesis/S.O. Lanzhou Inst. of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China Shanghai Inst. of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China

The chiral cluster RuCoMo（CO）8 （μ3-Se）C5H4C （O）C6H4C （O）OCH3was synthesizgd by the thermal reaction of the precursor （μ3-Se）RuCo2（Co）9 with ’thefunctionally substituted cyclopentadienyl tricarbonyl metal complex anions [Mo（CO）3（η5-C5H4） C （O）C6H4C （O） OCH3]- in THF. It was characterized by C/H elementalanalysis, IR, 1H/13C-NMR and MS （FAB）, and its crystal structure has also beensolved by single-crystal X-ray diffraction. Crystal data: Mr=786. 23, triclinic, spacegroup P1, a =8. 200（2）, b= 19. 631 （7）, c=7.997（2） , a=92. 50（2）, β=108. 66 （2）, γ=88. 97（2）°, V= 1218. 5（6） , Z=2, Dc=2. 143g/cm3, F（000） =756. 00, μ= 33. 44cm-1, the final R =0. 054 and R.= 0. 077 for 2644 observationswith （I≥3.0σ（I））.

关键词： transition metal cluster complex chiral crystal structure

synthesis and Crystal Structure of (η5 EtO（O）CC5H4)RuCoMo（μ3-S）(CO)8

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Chinese Journal of Structural Chemistry 2000年第1期19卷 15-18页

作者： ZHANG Yu Hua a\ wu shu lin a\ li Qing Shan a\ SONG Cui Ping a YIN Yuan Qi a② \ HUANG Xiao Ying b a(State key laboratory for oxo synthesis and selective oxidation, lanzhou institute of chemical physics, the Chinese Academy of Science 中科院兰州化学物理所羰基合成与选择氧化国家重点实验室甘肃兰州 730000 中科院福建物质结构所福建福州 350002

The chiral sulfido cluster ( η 5 EtO(O)CC 5H 4)RuCoMo( μ 3 S)(CO) 8 was synthesized by refluxing a solution of SRuCo 2(CO) 9 and Na〔Mo(CO) 3CpC(O)OEt〕 in tetrahydrofuran. It was characterized by elemental analysis, IR and 1H NMR. Crystal data: C 16 H 9O 10 CoMoRuS, M r =649.24, monoclinic, space group P2 1/n, a = 10.075(1), b = 9.034(2), c = 22.973(7), β= 92.70(1), V = 2088.7(8) 3, Z = 4, D c = 2.064g·cm -3 , μ (Mo Kα ) = 22.07 cm -1 , F(000) = 1256, T = 296K, final R = 0.030, R w = 0.042 for 3686 observed reflections with I>2\^00σ(I) . The crystal structure determination shows that the cluster has a chiral tetrahedral core containing a ethoxycarbonyl attached to the cyclopentadienyl.\;

关键词： synthesis crystal structure tetrahedral framework heterometallic cluster

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钛催化的烯烃制备1,1-二硼化合物

有机化学 2024年第2期44卷 631-637页

作者：李思达崔鑫舒兴中吴立朋中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室兰州730000 兰州大学化学化工学院功能有机分子化学国家重点实验室兰州730000 中国科学院大学北京100049 杭州师范大学材料与化学化工学院有机硅化学及材料技术教育部重点实验室杭州311121

开发了一种适用范围广且在温和条件下就可以进行的芳基烯烃和频哪醇硼烷(HBpin)之间1,1-二硼化反应制备1,1-二硼化合物的新方法.反应成功的关键是利用丰产金属钛(Cp_(2)TiCl_(2))作为催化剂,并且在甲醇锂(MeOli)的活化作用下进行.推测Cp... 详细信息

开发了一种适用范围广且在温和条件下就可以进行的芳基烯烃和频哪醇硼烷(HBpin)之间1,1-二硼化反应制备1,1-二硼化合物的新方法.反应成功的关键是利用丰产金属钛(Cp_(2)TiCl_(2))作为催化剂,并且在甲醇锂(MeOli)的活化作用下进行.推测Cp_(2)TiCl_(2)/MeOli/HBpin体系中原位生成的Ti-H物种是催化该反应进行的主要活性物种.

关键词：钛烯烃 1,1-二硼化催化

含咔唑结构的小分子及聚合物催化二氧化碳转化研究进展

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有机化学 2024年第5期44卷 1423-1444页

作者：姜晓琳王超洋武利园李跃辉苏州大学附属儿童医院药剂科江苏苏州215000 中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室兰州730000 北京建筑大学环境与能源工程学院北京100044

咔唑具有刚性平面结构和共轭π电子特征,表现出优异的电子传输性质.咔唑的N原子和芳环上容易进行化学修饰,以咔唑作为骨架或连接单元,人们方便地开发出结构多样的咔唑基配体和聚合物,并在催化和功能材料等研究领域中得到了广泛的应用.... 详细信息

咔唑具有刚性平面结构和共轭π电子特征,表现出优异的电子传输性质.咔唑的N原子和芳环上容易进行化学修饰,以咔唑作为骨架或连接单元,人们方便地开发出结构多样的咔唑基配体和聚合物,并在催化和功能材料等研究领域中得到了广泛的应用.二氧化碳催化转化制备燃料和化学品,可以为实现双碳目标提供重要的技术支撑.综述了近年来咔唑基配体、咔唑基金属配合物及含咔唑结构的多相材料在催化CO_(2)相关反应方面的研究进展.通过介绍催化剂制备方法,归纳总结均相催化以及多相催化反应等内容,将为深入理解咔唑单元在催化中的重要作用,提升咔唑基材料的催化效率提供重要的参考信息.

关键词：咔唑结构二氧化碳均相催化多相催化电子传递

Effects of polydopamine modification on self-grown Cu O cube anodes in lithium-ion batteries

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Science China(Technological Sciences) 2016年第4期59卷 667-672,1-4页

作者： HAO liHua wu liQiong JIA ZhiQi ZHAO YongXiang li XinHeng College of Chemistry and chemical Engineering Shanxi University State key laboratory for oxo synthesis and selective oxidation Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP)

We report the synthesis of Cut cubes with well-defined size and shape by thermal treatments of Cu2O cubes. Polydopamine （PDA） is introduced to modify the Cut cubes by the in-situ polymerization of the dopamine precursor. The initial specific ca- pacity of the lithium-ion batteries using the Cut cubes as anodes increases about 10 times at a 0.5 C rate as a result of the modification of PDA. The overall specific capacity for 100 cycles also increases effectively due to the introduction of PDA. So PDA as surface modifying agent significantly improves the electrochemical performance of the Cut anodes.

关键词： lithium anode materials copper oxides polydopamine modification specific capacity in-situ polymerization