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用于无磷洗涤助剂的可生物降解共聚物 P(AA-co-MDO)的合成及表征（图）
洗涤助剂 共聚物 可生物降解
2013/12/22
合成了一种环状乙烯酮缩二醇化合物2-亚甲基-l,3-二氧环庚烷(MDO)单体,并通过与部分中和的丙烯酸(AA)进行自由基开环聚合,合成了主链上含有酯基、侧链上含有羧基的新型可生物降解共聚物P(AA-co-MDO),用傅里叶变换红外(FTIR),核磁共振(1H-NMR)和多角度激光光散射(MALLS)对共聚物的组成与分子量进行了表征,结果表明,共聚物结构明确.同时,通过差示扫描量热法(DSC)和热重...
对M(Ⅱ)[M=Co，Ni and Cu]与L-多巴(L)和1，10-菲咯啉(X)在的1，4-二氧杂环己烷(DOX)-水混合物【0~60%(V/V)】三元配合物体系在(303.0±0.1) K和离子强度为0.16 mol·L-1情况下进行pH滴定。结果表明：对Co(Ⅱ) 和Cu(Ⅱ)而言，三元物种为MLX2H，MLXH，ML2X和MLX，但对Ni(Ⅱ)而言，三元物种为MLX2H，MLXH和MLX。...
用共浸渍法制备了Co-Ni2P/SBA-15前躯体，将其调制成活性胶后均匀涂覆到预处理后的堇青石载体上，程序升温还原后制备了一系列Co-Ni2P/SBA-15/堇青石整体式催化剂。采用XRD、N2吸脱附和XPS等对催化剂进行了表征，以1 wt％二苯并噻吩(DBT)/十氢萘溶液为模型化合物，在微型固定床反应器上对催化剂的加氢脱硫(HDS)性能进行了评价。结果表明，不同Co含量的Co-Ni2P/SBA...
由苯亚甲基苯乙酮和苯甲酰肼合成一种新型双齿(O、N)酰腙配体(苯亚甲基苯乙酮苯甲酰腙)。由水热法合成了两种配合物[M(babh)2(py)2](M=Ni，1；Co，2；Hbabh=苯亚甲基苯乙酮苯甲酰腙，py=吡啶)，并用元素分析、红外、热重及X-射线单晶衍射对其进行了表征。晶体结构分析结果表明：两个化合物均属单斜晶系，空间群均是P21/n。化合物1和2通过分子间弱的C-H…π堆积形成二维片状超分...
以传统的浸渍法，在不同焙烧温度下制备了用于CO氧化反应的Co3O4/SiO2催化剂．通过激光拉曼光谱(Raman)、X射线光电子能谱(XPS)、X射线衍射(XRD)、程序升温还原(TPR)和X射线吸收精细结构谱(XAFS)表征了该系列催化剂的结构．在所有的催化剂中，XRD和Raman光谱都只检测到了Co3O4晶相的存在．与Co3O4体相相比，XPS结果表明在200 oC焙烧的(Co3O4(200)...
Comparative Investigation of Mo(CO)6 Adsorption on Clean and Oxidized Si(111) Surfaces
Molybdenum hexacarbonyl SiO2/Si(111) Interaction High-resolution elec-tron energy loss spectroscopy
2012/4/5
Mo(CO)6 adsorption on the clean, oxygen-precovered and deeply oxidized Si(111) surfaces was comparatively investigated by high-resolution electron energy loss spectroscopy. The downward vibrational fr...
Structure and Magnetism of Co-implanted TiO2
Nanocomposite Ferromagnetic material Ion implantation
2012/4/5
Crystalline Co nanocomposites in the rutile TiO2 were synthesized by 180 keV Co ion beam implantation at temperature of 623 K with the fluence of 4×1016 cm-2. The structural and magnetic properties of...
Photoelectrochemical and photocatalytic properties of N + S co-doped TiO2 nanotube array films under visible light irradiation
Nanostructures Oxide Thin films Electrochemical properties
2011/8/18
Abstract: In this paper, we report on the co-doping nitrogen and sulfur has been achieved in the TiO2 nanotube array films by treatment with thiourea and calcination under vacuum at 500 {\deg}C for 3 ...
Co(III) catalysed asymmetric ring-opening of epichlorohydrin by salicylaldehyde derivatives: reversal of enantioselectivity and rate acceleration on addition of AlCl3
Asymmetric catalysis salicylaldehyde Co(III) salen aryloxy alcohols epoxide ring-opening
2010/12/3
Using asymmetric Cobalt(III) salen catalysts, the ring-opening of epichlorohydrin by 2,3-dihydroxybenzal- dehyde and 2,4- dihydroxybenzaldehyde was found to occur at the phenolic groups most distant f...
Co(III) Catalysed Asymmetric Ring-Opening of Epichlorohydrin by Salicylaldehyde Derivatives: Reversal of Enantioselectivity and Rate Acceleration on Addition of AlCl3
Asymmetric catalysis salicylaldehyde Co(III) salen
2010/10/19
Using asymmetric Cobalt(III) salen catalysts, the ring-opening of epichlorohydrin by 2,3-dihydroxybenzaldehyde and 2,4- dihydroxybenzaldehyde was found to occur at the phenolic groups most distant fro...
Synthesis and characterization of non-symmetric tetradentate complexes of Zn(II), Co(II), and Cu(II)
Synthesis characterization non-symmetric tetradentate complexes
2010/10/15
The non-symmetrical tetradentate Schiff-base H2L was obtained using the half-unit N-(1-hydroxy-2-acetophenone)-1-amino- 2-phenyleneimine (HL) with 2-hydroxyl-1-naphthaldehyde. ZnL, CoL, and CuL compl...
以N-异丙基丙烯酰胺(NIPA)和N,N-双烯丙基苄胺(DiAB)为共聚单体、N,N-亚甲基双丙烯酰胺(BIS)为交联剂、十二烷基硫酸钠(SDS)为表面活性剂、过硫酸铵(APS)-四甲基乙二胺(TMEDA)为氧化还原引发体系，采用自由胶束交联共聚法合成了疏水基团为芳香基的疏水改性温敏性智能水凝胶P(NIPA-co-DiAB)。研究了DiAB摩尔分数(x(DiAB))对水凝胶溶胀性能的影响。 在初始...
Surface Properties and Catalytic Performance of Pt/PrSrCoO4 Catalysts for NO Reduction by CO
Perovskite-type A2BO4 Pt/PrSrCoO4 XPS NO reduction by CO
2010/4/19
Perovskite-type Pr2-xSrxCoO4\pm l mixed oxides were prepared by different calcination temperatures and were investigated by XRD, BET, TPD, TPR and XPS methods. These catalysts possess high catalytic a...
本文以四极质谱作为过渡应答测量中的分析手段, 连续快速跟踪和分析被测物种, 测量了H_2和CO在改性Rh/Al_2O_3催化剂上的吸附和脱附性能。结果发现, 507 K时H_2或CO的吸附中存在着部份不可逆吸附。CO和H_2吸附在相同的活性位上, 存在竞争吸附。CO的吸附作用略强於H_2。钾元素的改性使催化剂对H_2或CO的吸附量均减少, 然而相对于H_2而言, CO的吸附作用更强了。