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List of Issues

    Chinese Journal of Catalysis
    2008, Vol. 29, No. 9
    Online: 25 September 2008

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    Articles
    Heterogeneous Chiral Catalysis on Surfaces, in Nanopores and with Chiral Emulsions
    HAN Difei;YANG Qihua;LI Can*
    2008, 29 (9):  789-816. 
    Abstract ( 2434 )   [Full Text(HTML)] () PDF (2150KB) ( 1186 )  
    This review presents the research progress of heterogeneous chiral catalysis on surface, in nanopores, and with emulsion and mainly focuses on the recent res ul ts on chiral hydrogenation, transfer hydrogenation, hydroformylation, epoxidatio n, hydrolytic kinetics resolution, Aldol reaction, Diels-Alder reaction, enzyme catalytic reaction, etc., in this laboratory.
    Green Chemistry of Syngas Catalytic Conversion
    KOU Yuan
    2008, 29 (9):  817-822. 
    Abstract ( 2221 )   [Full Text(HTML)] () PDF (447KB) ( 2575 )  
    The new F-T technology, which has been licensed to Synfuels China, gives a 35- fold increase in activity over conventional supported catalysts at an operating temperature of only 150 °C, and a 15-fold increase at 100 °C. This has encour aged us to further develop novel syngas conversion technologies at much lower te mperatures with higher thermal efficiencies than traditional technologies.
    Morphology Effect of Nano-Scale CeO2 in Heterogeneous Catalytic Reactions
    LI Juan;TA Na;LI Yong;SHEN Wenjie*
    2008, 29 (9):  823-830. 
    Abstract ( 2390 )   [Full Text(HTML)] () PDF (733KB) ( 1291 )  
    The catalytic reactivity of CeO2 not only depends on the particle size but al so closely relates to the morphology. The nanostructure and redox characteristic of CeO2 were analyzed in the paper, and the effects of the CeO2 structure a nd morphology on the representative catalytic reactions, including CO oxidation, water gas shift, and ethanol steam reforming, where the morphology-dependent c atalysis is well demonstrated, were summarized.
    Recent Advances in the Synthesis of Cyclic Carbonates from Carbon Dioxide and Epoxides
    GAO Zhiwen;XIAO Linfei;*;CHEN Jing;XIA Chungu*
    2008, 29 (9):  831-838. 
    Abstract ( 2328 )   [Full Text(HTML)] () PDF (529KB) ( 2514 )  
    The synthesis of cyclic carbonate from carbon dioxide and epoxides is one of t he most effective routes for chemical utilization of carbon dioxide as a C1 buildi ng block. The latest progress in the synthesis of cyclic carbonate from carbon d ioxide and epoxides was reviewed and the catalytic reaction mechanism was discus sed.
    Controllable Preparation of Layered Anionic Materials
    LU Zhi;DUAN Xue*
    2008, 29 (9):  839-856. 
    Abstract ( 1994 )   [Full Text(HTML)] () PDF (1603KB) ( 1201 )  
    Layered double hydroxides (LDHs) have attracted increasing interests in rece nt years due to their potential applications. This paper is designed to review t he state of the art in the preparation of LDHs. Particle size control and crysta llinity control of LDHs, preparation of noble metal-containing LDHs, macro-mor p hologically controlled preparation and in situ immobilization of LDHs are di scussed in detail.
    Catalytic Epoxidation of Propylene Using Nitrous Oxide or Oxygen as Oxidant
    WANG Ye*;ZHU Wenming;ZHANG Qinghong
    2008, 29 (9):  857-865. 
    Abstract ( 3052 )   [Full Text(HTML)] () PDF (504KB) ( 1062 )  
    K+-FeOx/SBA-15 modified by boron was efficient for propylene epox idation by N2O. The structure, environment of iron, and acid-base propert y of catalyst determined the reaction route probably by affecting the nature of a ctive oxygen species. K+-CuOx/SBA-15 or K+-CuOx-SiO 2 catalyst could catalyze propylene epoxidation by O2. CuI functioned as the active site for propylene epoxidation by O2.
    Advances in Research of the Stability of Molecular Sieve Catalysts for Olefin Cracking
    XUE Nianhua;GUO Xuefeng;DING Weiping*;CHEN Yi
    2008, 29 (9):  866-872. 
    Abstract ( 2352 )   [Full Text(HTML)] () PDF (325KB) ( 1363 )  
    The research progress of olefin cracking and the improvement of hydrothermal st ability of catalysts have been reviewed in this paper. The advances in zeolite m odification as well as the influence on catalytic performance of cracking olefin s were summarized. It would be valuable for the development of effective and app licable catalysts for the cracking of less valuable hydrocarbon feedstock to pro pene.
    Applications of the Amorphous Alloy Catalyst and Magnetically Stabilized Bed Technology in Petrochemical Processes
    ZONG Baoning
    2008, 29 (9):  873-877. 
    Abstract ( 2378 )   [Full Text(HTML)] () PDF (235KB) ( 1031 )  
    The development and applications of integration between the amorphous Ni all oy catalyst and magnetically stabilized bed (MSB) reactor in caprolactam hydroge n refining processes were reviewed. The commercial application of the integrate technology for the first time in the world greatly promotes the development of h ydrogenation in China and produces large social and commercial benefit.
    One-Pot Method to Synthesize 4,6-Bis(isopropylamino)benzene-1,3-diol by Catalytic Reductive Mono-N-alkylation of Amine Derivatives
    JIN Zhonghao;LI Dao;MA Rui;PENG Xutao;WANG Xingyi*;LU Guanzhong
    2008, 29 (9):  878-880. 
    Abstract ( 2139 )   [Full Text(HTML)] () PDF (144KB) ( 1226 )  
    An alternative method was studied for catalytically reductive hydrodechlorinatio n and mono-N-alkylation of 2-chloro-4,6-dinitrobenzene-1,3-diol, an i nexpensive material, to synthesize corresponding N-alkyl secondary aminophe nol, 4,6-bis(isopropylamino)benzene-1,3-diol, at a high yield by using aceton e as the alkyl source and hydrogen as the reducing reagent over 10%Pd/C catalyst .
    Photoelectrochemical Properties of BiVO4 Film Electrode in Alkaline Solution
    LONG Mingce*;CAI Weimin
    2008, 29 (9):  881-883. 
    Abstract ( 2062 )   [Full Text(HTML)] () PDF (175KB) ( 915 )  
    The BiVO4 film electrode exhibited enhanced efficiency and stability in alkali ne solution compared with those in the neutral electrolyte. The cyclic voltammog rams for the intermediates analysis showed that the accumulation of peroxide in terme diates is less in higher pH alkaline solution. However, the water photooxidation mechanism is more complex when a higher bias is applied in the alkaline solutio n.
    Synthesis of Molybdenum Carbide Catalysts over Different Carbon Supports
    LI Xiaoyun;MA Ding;BAO Xinhe*
    2008, 29 (9):  884-888. 
    Abstract ( 2339 )   [Full Text(HTML)] () PDF (341KB) ( 1222 )  
    The transformations of Mo species went through different ways during preparation of Mo2C catalysts over different carbon materials, in which metallic molybden um was observed over the graphitic carbon material. The temperature for molybden um carbide formation over carbon nanotubes is the lowest among three carbon mate rials.
    Synthesis of Dodecylbenzene with Benzene and 1-Dodecene over MCM-22 Zeolite Modified with Phosphorus
    TIAN Ling;LI Jianwei*;LI Yingxia;CHEN Biaohua
    2008, 29 (9):  889-894. 
    Abstract ( 2302 )   [Full Text(HTML)] () PDF (415KB) ( 1055 )  
    With increasing phosphorus content, the MCM-22 zeolite acidity was reduced and the quantity of weak acid sites increased gradually, whereas the strong acid sit es decreased. A proper phosphorus content can improve the selectivity for 2-dod ecylbenzene and the catalytic stability of the MCM-22 catalyst. The maximum yie ld of 2-phenyldodecane was obtained with a phosphorus content of 0.5%.
    Higher Olefin Hydroformylation in Polyethylene Glycol-H2O Media
    LI Cheng;FU Haiyan;ZHANG Ruimin;LIU Wenjing;YANG Chaofen;CHEN Hua*;LI Xianjun
    2008, 29 (9):  895-900. 
    Abstract ( 2341 )   [Full Text(HTML)] () PDF (248KB) ( 1044 )  
    Higher olefin hydroformylation catalyzed by water-soluble rhodium complex RhCl( CO)(TPPTS)2 was studied. High activity and selectivity for aldehydes were obta i ned under the mild conditions, and the catalyst immobilized in PEG-water could be easily separated from the products and reused.
    Tribromoisocyanuric Acid and DABCO-Br as Efficient Catalysts for the Silylation of Hydroxyl Groups with Hexamethyldisilazane
    Khodabakhsh NIKNAM;Mohammad Ali ZOLFIGOL;Gholamabbas CHEHARDOLI;Mina DEHGHANI
    2008, 29 (9):  901-906. 
    Abstract ( 2522 )   [Full Text(HTML)] () PDF (412KB) ( 943 )  
    A good range of primary, secondary, tertiary alcohols, and phenolic hydroxyl g ro ups were effectively converted into their corresponding trimethylsilyl ethers wi th hexamethyldisilazane in the presence of catalytic amounts of tribromoisocyanu ric acid and DABCO-bromine under mild conditions at room temperature with short reaction times in good to excellent yields.
    Production of Light Aromatic Hydrocarbons from Biomass by Catalytic Pyrolysis
    WANG Chang*;HAO Qinglan;LU Dingqiang;JIA Qingzhu;LI Guiju;XU Bo
    2008, 29 (9):  907-912. 
    Abstract ( 2083 )   [Full Text(HTML)] () PDF (310KB) ( 1390 )  
    Catalytic pyrolysis of three kinds of biomass was carried out using a dual-part icle powder fluidized bed (PPFB). The results showed that the tar in the volati le matter was transformed to the other pyrolysis products of the lower molecular hydrocarbon compounds at the higher temperature during the secondary reaction. The pyrolysis product distributions and its yield of the biomass could be contro lled by adjusting the secondary reaction parameters.
    Thermodynamics of Direct Synthesis of Acetic Acid from CH4 and CO2 by a Two-Step Isothermal Reaction Sequence on Co/Pd Catalysts
    ZHANG Riguang;HUANG Wei*;WANG Baojun
    2008, 29 (9):  913-920. 
    Abstract ( 2330 )   [Full Text(HTML)] () PDF (523KB) ( 1105 )  
    The reaction sequence of the direct synthesis of acetic acid by CH4/CO2 two -step reaction on binary Co/Pd catalysts under isothermal conditions, which is favored in thermodynamics, goes through as follows: first, Co activates CH4 le ading to CHxCo (x=0,1); then, the overfall of CHx f r om Co to Pd generating CHyPd (y=1-3); last, CO 2 inserts into CHyPd forming acetic acid.
    Activation and Hydrodesulfurization Activity of MoO3/Al2O3 Catalyst Presulfided by Ammonium Thiosulfate
    GE Hui;LI Xuekuan*;WANG Jianguo;QIN Zhangfeng;L Zhanjun;YANG Ying
    2008, 29 (9):  921-927. 
    Abstract ( 2144 )   [Full Text(HTML)] () PDF (502KB) ( 921 )  
    The MoO3/γ-Al2O3 catalyst presulfided by ammonium thiosulfate exhibite d higher activity than by dimethlydisulfide. It was attributed to the formation of active type Ⅱ MoS2 phase and the increase of sulfidation degree in (NH4) 2S2O3 presulfided catalysts. The interaction of Mo with support in (NH4) 2 S2O3 presulfided catalysts was depressed by the sulfate species, which is a derivative of (NH4)2S2O3.
    Synthesis of Mesoporous Materials with High Hydrothermal Stability from MCM-22
    LIU Ziyu;ZHU Zibin;WANG Renyuan;ZHU Xuedong*
    2008, 29 (9):  928-934. 
    Abstract ( 2280 )   [Full Text(HTML)] () PDF (520KB) ( 979 )  
    Microporous MCM-22 was transferred to mesoporous materials by refluxing with surfactant in the presence of NaOH followed by adjusting the pH to 7 -9. The obtained materials exhibited remarkable hydrothermal stabili ty. After being refluxed in boiling water for 300 h, Ecust-7 still remained a h igh specific surface area of 698 m2/g and a pore volume of 0.90 cm3/g.
    Aerobic Oxidation of Alcohols to Carbonyl Compounds Catalyzed by Fe(NO3)3/4-OH-TEMPO under Mild Conditions
    WANG Xinliang;LIANG Xinmiao*
    2008, 29 (9):  935-939. 
    Abstract ( 2794 )   [Full Text(HTML)] () PDF (221KB) ( 1218 )  
    An efficient, inexpensive, and mild transition-metal oxidation protocol has bee n developed for the Fe(NO3)3/4-OH-TEMPO-catalyzed aerobic selective oxida tion of a wide range of primary and secondary alcohols, which may bear carbon- carbon double bond or O or N or S as heteroatoms, to the corresponding aldehydes and ketones.
    Catalytic Performance of ZSM-5/MOR Composite Zeolite Catalyst for Conversion of Mixed C4 Hydrocarbons
    LIU Baijun;*;ZENG Xianjun;HE Linlin;ZHAO Zhen
    2008, 29 (9):  940-944. 
    Abstract ( 2531 )   [Full Text(HTML)] () PDF (292KB) ( 956 )  
    Not only did the ZSM-5/mordenite (ZSM-5/MOR) composite zeolite catalyst give h igh activity for the conversion of mixed C4 hydrocarbons, but also it possesse d high selectivities to ethylene and propylene, to benzene and toluene. The yiel d sum of benzene and toluene increased with the content of ZSM-5, and even it w as much greater than that over bare ZSM-5 zeolite. At the reaction temperature of 625 ℃ the yield sum of benzene and toluene could reach as high as 44.5%.
    Influence of SiO2/Al2O3 Ratio in HMCM-22 on Catalytic Performance of Cu-ZnO-Al2O3/HMCM-22 for Synthesis of Dimethyl Ether
    MAO Dongsen*;XIA Jianchao;ZHANG Bin;CHEN Qingling;LU Guanzhong
    2008, 29 (9):  945-949. 
    Abstract ( 2375 )   [Full Text(HTML)] () PDF (310KB) ( 974 )  
    The dimethyl ether (DME) selectivity over Cu-ZnO-Al2O3/HMCM-22 bifunction al catalyst for the synthesis of DME from syngas was enhanced with the increase of SiO2/Al2O3 ratios in HMCM-22 zeolite. The bifunction al c atalyst containing high silica content in HMCM-22 zeolite exhibited high activi ty, selectivity, and stability.