催化学报杂志社
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催化学报杂志

《催化学报》在全国影响力巨大,创刊于1980年,公开发行的月刊杂志。创刊以来,办刊质量和水平不断提高,主要栏目设置有:研究快讯、研究论文、综述等。
  • 主管单位:中国科学院
  • 主办单位:中国化学会;中国科学院大连化学物理研究所
  • 国际刊号:0253-9837
  • 国内刊号:21-1195/O6
  • 出版地方:辽宁
  • 邮发代号:8-93
  • 创刊时间:1980
  • 发行周期:月刊
  • 期刊开本:A4
  • 复合影响因子:1.52
  • 综合影响因子:1.788
期刊级别: CSCD期刊统计源期刊
服务介绍

催化学报 2013年第04期杂志 文档列表

半导体/石墨烯复合光催化剂的制备及应用

摘要:首先分析了石墨烯和半导体光催化剂的特点,以及二者复合后可能具有的优越性质,接着介绍了石墨烯和半导体复合光催化剂的制备方法,归纳了石墨烯增强半导体光催化的机理,然后阐述了复合光催化剂在降解有机污染物、光催化分解水产氢、光催化还原CO2制有机燃料和光催化灭菌四个典型的应用,最后对半导体/石墨烯复合光催化剂未来的发展趋势提出了展望.
621-640

HZSM-5上生物质催化裂解的近期研究进展(英文)

摘要:概述了近期的HZSM-5对生物质和生物油催化裂解的研究进展,重点介绍了催化剂的应用、生物油提质的方法和反应机理.
641-650

Ni基催化剂上木质素模型化合物苯基苯乙醚C–O键的加氢裂解

摘要:研究了Ni基催化剂上木质素模型化合物苯基苯乙醚中C–O–C键加氢裂解性能.结果表明,Ni/C催化剂显示出优异的加氢裂解能力,苯基苯乙醚的转化率达到99%以上.Ni/C催化剂的还原方法对裂解选择性有重要影响;氢气还原制备的Ni/C-H催化剂上,C–O–C键裂解选择性为85%.Ru/C和Pd/C催化剂上裂解选择性分别为40%和69%.采用碳热还原方法制备的Ni/C-C催化剂,可以实现高选择性加氢和裂解,C–O–C键裂解选择性达到99%以上,其中芳烃化合物收率为44%.这可能与镍组分和载体碳之间的相互作用有关.
651-658

温控聚乙二醇两相体系中纳米钯催化肉桂醛选择性加氢反应

摘要:将具有"高温混溶、室温分相"功能的聚乙二醇4000(PEG4000)与甲苯-正庚烷组成的两相体系用于纳米钯催化的肉桂醛选择性加氢反应中.在优化的反应条件下,肉桂醛转化率和氢化肉桂醛选择性分别为99%和98%.钯纳米催化剂经简单分相即可与产物分离,且循环使用8次,其活性和选择性基本保持不变.
674-678

三价铑催化亚甲胺内盐与丙烯酰胺氧化合成三取代吡唑(英文)

摘要:将三价铑离子配合物用于催化甲亚胺内盐与取代的丙烯酰胺之间的氧化偶联反应,实现了三取代的吡唑化合物的合成.在这个过程中,取代的丙烯酰胺的烯烃发生了C–H键活化.此类反应和用丙烯酸酯时的反应具有不同的选择性.
679-683

无溶剂条件下N-磺酸琥珀酰亚胺催化乙酰化反应(英文)

摘要:A small amount of succinimide-N-sulfonic acid efficiently catalyzed the acetylation of a variety alcohols, phenols, thiols, amines and aldehydes with acetic anhydride at room temperature under solvent free conditions. This catalyst has the advantages of excellent yields and short reaction times and the reaction can be carried out on a large scale, which makes it potentially useful for industrial applications.
695-703

采用燃烧技术制备CuO纳米粒子:一种高效且环境友好的用于芳族醛合成芳族腈催化剂(英文)

摘要:CuO nanoparticles were synthesized using an energy-efficient and rapid solution combustion technique with malic acid employed as a fuel. The combustion-derived CuO nanoparticles were used as catalysts in a one-pot synthesis of aromatic nitriles from aromatic aldehydes and hydroxylamine hydrochloride. The catalyst was characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray analysis, transmission electron microscopy, and Brunauer-Emmett-Teller surface area analysis. The catalytic activity of the CuO nanoparticles in the synthesis of aromatic nitriles from aromatic aldehydes was evaluated. The present protocol offers the advantages of a clean reaction, simple methodology, short reaction duration (1-2 min), and high yield (85%-98%). The catalytic activity of the CuO nanoparticles was found to be higher than that of bulk CuO powder under the same conditions. The catalyst can also be recovered and reused up to four times with no significant loss of catalytic activity. The present approach is inexpensive and is a convenient technique suitable for industrial production of CuO nanoparticles and nitriles.
704-710

硅胶功能化的N-丙哌嗪固载钯纳米粒子作为有效的多相催化剂用于氰化反应(英文)

摘要:An efficient heterogeneous Pd catalytic system has been developed, based on immobilization of Pd nanoparticles (PNPs) on a silica-bonded N-propylpiperazine (SBNPP) substrate. The SBNPP substrate effectively stabilizes the PNPs and improves their stability against aggregation. The catalytic activity of this catalyst was investigated in the cyanation of aryl halides with K4[Fe(CN)6 ] as the cyanide source. The catalyst could be recycled several times without appreciable loss of catalytic activity.
718-722

单壁碳纳米管对C–C键水解酶BphD的固定化性能

摘要:采用修饰与未修饰单壁碳纳米管固定C–C键水解酶BphD,并对固定化酶的相对活性、稳定性、重复使用性进行了考察.结果表明,未修饰单壁碳纳米管固定的BphD相对活性为游离态的52.5%,其热稳定性和在变性剂中的稳定性均有所提高,且重复使用10次仍可保持初始活力的90%.修饰单壁碳纳米管固定的BphD相对活性可达99.7%,但其稳定性没有明显提高.同源模建及分子对接分析结果显示,未修饰的单壁碳纳米管对BphD亚基之间的联系可能存在干扰作用,从而对其活性产生影响.
723-733

二氧化钛气凝胶基质中金纳米粒子的光催化活性和结构(英文)

摘要:TiO2 -Au aerogels containing different amounts of gold nanoparticles of different sizes (5 and 16 nm) were successfully synthesized using a sol-gel procedure, and were tested for salicylic acid photodegradation under UV irradiation. The structure and morphology of the obtained materials were investigated using X-ray diffraction, transmission electron microscopy, and N2 adsorption-desorption measurements. UV-Vis spectroscopy was used to study the optical properties. The effects of the gold nanoparticles on the TiO2 crystallization process were twofold, as follows: (i) the number of crystallized zones was strongly related to the concentration of the gold nanoparticles, and (ii) the smaller gold particles increased the time taken for the crystallization of the samples. It was found that the noble metal-doped samples exhibited higher degradation rates compared with bare titania. It was found that the most active photocatalyst in each studied system was the sample with the highest concentration of gold nanoparticles. Additionally, the highest degradation rate value was obtained with the smallest Au nanoparticles (46.4 10-3 μmol/(L·s).
734-740

脂质体为模板仿生硅化固定葡萄糖氧化酶

摘要:将脂质体囊泡与仿生硅化技术相结合,模拟细胞纳微环境,实现以脂质体为模板仿生制备氧化硅固定葡萄糖氧化酶(GOx),建立性能稳定的固定化酶.扫描电镜分析显示,固定化GOx为球形纳米粒子,粒径分布在200nm左右,在优化反应条件下GOx回收率达到71.8%.由于载体的空间限制作用及其提供的较稳定微环境,固定化GOx表现出良好的热稳定性和pH稳定性,其对变性剂耐受性和操作稳定性等也得到明显提高.
741-750

超声辅助合成铈锆铝氧化物及其负载Pd催化剂对乙醇汽油车尾气的净化性能(英文)

摘要:在共沉淀法的基础上辅助以超声制备了铈锆铝复合氧化物(CZA),采用比表面分析仪、X射线衍射、程序升温还原、储氧量和X射线光电子能谱对材料进行了表征.结果表明,超声振荡有助于小而均匀的孔生成,有利于Pd物种的分散;超声振荡还能提高CZA的储氧量,使材料的表面组成与体相组成趋于一致.催化活性测试表明,材料经过超声处理的Pd-CZA净化乙醇汽油车尾气时,可以将氧气的完全利用窗口从0~0.64%拓宽至0~1.16%;并且使乙醇、C3H8和CO起燃温度分别下降了30,28和24℃.此外,Pd物种与CZA-U的相互作用有利于NO与C3H8和C2H5OH的反应.
751-757

二氧化锡纳米粒子催化四组分Hantzsch缩合合成多氢喹啉衍生物(英文)

摘要:Tin dioxide (SnO2 ) nanoparticles efficiently catalyzed unsymmetrical four-component Hantzsch condensations of various aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate to form polyhydroquinoline derivatives in excellent yields. This novel method offers several advantages over the traditional method of synthesizing these compounds, including safety, mild conditions, short reaction times, high yields, and an easy workup.
758-763

沸石负载Ni催化剂在甲烷干重整中的稳定性(英文)

摘要:Ni/γ-Al2O3 , Ni/Y-zeolite, and Ni/H-ZSM-5 catalysts were prepared using the incipient wetness impregnation method. Their catalytic performance in dry reforming of methane was studied. The fresh and used catalysts and deposited carbon were characterized using H2 temperature-programmed reduction, temperature-programmed oxidation, N2 adsorption-desorption, X-ray diffraction, and thermogravimetric analysis. The H-ZSM-5-supported Ni catalyst proved to be more stable than the other two catalysts, as it had the lowest carbon deposition.
764-768

烷基咪唑离子液体对脂肪酶催化酯水解反应活性的影响

摘要:考察了1-烷基-3-甲基咪唑类离子液体对柱状假丝酵母脂肪酶(CRL)催化橄榄油水解反应活性的影响,利用电导法确定了磷酸盐缓冲液中Br-,Cl-,[BF4]-系列咪唑离子液体的临界胶束浓度(CMC)和[PF6]-系列咪唑离子液体的溶解度.结果显示,离子液体的阴、阳离子对酶活性的影响规律与离子液体的Kosmotropicity性质无明显关联,但与离子液体在体系中的含量密切相关,在最适离子液体含量时,酶活性达到最高;阳离子[CnMIM]+中的n越大,可促进酶活性的离子液体适宜含量越低;Br-,[BF4]-系列离子液体的浓度超过CMC时则抑制酶活;阴离子对酶活性的最大促进作用顺序为Br->Cl->[BF4]->[PF6]-.离子液体对酶活性的影响随体系pH和温度的不同而改变,在最适离子液体浓度时的最适pH均为7.000.在pH7.000,30℃以及[C8MIM]Br离子液体浓度为47.6mmol/L的最佳条件下,最高相对酶活力和比活力分别达到1734%和54.4U/mg protein.
769-780

超细钴纳米粒子催化1-己烯低压氢甲酰化反应的原位红外光谱研究(英文)

摘要:利用原位透射红外光谱研究了2.8nm超细钴纳米粒子在2~3MPa合成气(CO:H2=1:1)和100℃条件下催化的1-己烯氢甲酰化反应.结果表明,在反应中出现与Co2(CO)8类似的红外吸收峰(2071,2041和2022cm-1),被证明是不同Co位点端式吸附CO.首次观测到了位于2054cm-1处吸收峰处的物种,可能归属为RCH2CH2COCo.通过此中间物种,产物醛可以在钴催化剂表面经由结合一个氢原子脱除反应而获得.
781-788

金属对钛硅分子筛TS-1催化丁二烯环氧化性能的影响

摘要:制备了不同金属改性的钛硅分子筛样品M-TS-1(M=V,Cr,Mn,Fe,Co,Ni,Cu,Zn,Cd,La,负载量为1%),并研究了其催化丁二烯环氧化反应的性能.结果表明,V,Cr,Mn的加入导致H2O2无效分解,因而在丁二烯环氧化反应中表现出较高的H2O2转化率和较低有效利用率;Fe,Co,Ni以及稀土金属La均在一定程度上促进了TS-1对H2O2的有效利用;Cu,Zn抑制了H2O2的转化,使得H2O2转化率和有效利用率都较低;Cd有效提高了TS-1的催化活性,H2O2转化率和有效利用率均接近100%.采用X射线衍射、N2吸附-脱附、X射线光电子能谱、傅里叶变换红外光谱等手段表征了上述各金属的改性对TS-1骨架结构以及Ti活性中心周围电子环境的影响.结果表明,各M-TS-1样品的骨架结构都仍保持原有的MFI构型,但是TS-1中Ti活性中心周围的电子环境受到来自各种金属的不同程度影响,关联催化活性时没有特定的规律性.
789-797

SAPO-35分子筛的合成及其甲醇制烯烃反应性能

摘要:以六亚甲基亚胺为模板剂,采用水热法合成了不同硅含量的磷酸硅铝分子筛SAPO-35,并利用X射线衍射、X射线荧光光谱、扫描电镜、固体核磁、X射线光电子能谱和N2吸附-脱附等方法对样品进行了表征.研究了不同硅含量的SAPO-35分子筛在甲醇转化制烯烃反应中的催化行为,同时对比分析了具有相近硅含量的SAPO-35和SAPO-34分子筛在甲醇转化反应过程中积炭物种随反应时间的演变特征,尝试将分子筛结构和其积炭失活行为进行了关联.
798-807