Stable monolayers of electropolymerized poly-N-vinylcarbazole (EPVK) and arachidic acid(AA) are obtained on a subphase of alkaline Tl2O3 colloidal solutions. As revealed by the atomic force microscope, there is phase separation in the mixed LB monolayers. Transmission electron microscopic observations reveal that ordered arrays of composite Tl2O3/Epvk nanowires are formed in the mixed monolayers. Formation of the composite nanowire arrays is attributed to the ordered adsorption of Tl2O3 colloidal particles along the polycationic EPVK chains. The composite nanowire array is 3.2nm wide with a spacing of 2.7nm.The composite nanowire arrays can also be formed when pure EPVK is used. Composite LB multilayers of Tl2O3/EPVK nanowire arrays are prepared. The bilayer spacing is 5.54nm.The present study is of importance to the fabrication of inorganic semiconductor/functional polymer composite nanowires.

A diode with Tb(AcAc)3Phen as emitting layer and PPV, Alq3 as hole and electron transportion layer, respectively, has been prepared. The spectrum of the diode shows a characteristic emission line of pure TB(3+). The recombination region of injected electrons and holes in the diode has been discussed.

Endohedral metallofullerene Gd@C2n were synthesized with high-yield using the carbon-arc discharge method of activating the Gd2O3-containing graphite anode in situ and back-burning technique. A series of Cd@C(2n) for 2n from 70 to 96 were effectively extracted by toluene at high-temperature and under high-pressure condition. Gd@C(82), Gd@C(74) were considered to be fairly stable and soluble metallofullerene species.

 Following the method of the coefficient K[1] and using the simple analytical wavefuntion of the Weakest Bound Electron Potential Model (WBEPM), we have studied systematically the oscillator strengths and lifetimes of the high Rydberg states (n~40) of atom Li in every case of probable adjustment of node numbers and obtained the adjusting rule for cach transition serie, the results agree with calculated oscillator strength methods by other authors. This shows the effectiveness of the coefficient k method on studying the properties of high Rydberg states of alkali atoms or alkali-like ions.

Micelle, microemulsion, lamellar liquid crystal and hexa nal liquid crystal can be formed in SDS/BA/H2O system, and the exchanging between them can be explained by the R ratio. The value of distribution coefficient of BA in O/W microemulsion, K=168, shows that most of BA molecules should be solubilized in the SDS micelle phase. With increasing the weight ratio of BA/SDS, d0 values have almost no change and the penetration of solvent, α, slightly increases in the lamellar liquid crystal, and the radius r in hexa nal liquid crystal is almost unchanged and the penetrations of solvent, α, increase in hexa nal liquid crystal.

 The correlation between thermochemistry and kinetics in the proton transfer reactions of small proton bound clusters has been examined. The results show that these reactions with some neutral bases for thee non-alkyl blocked proton bound clusters such as (C2H5OH)nH+(n=1-3) and (CH3OH)3H+ are intrinscally fast. The reactivity efficienices are controlled by overall reaction free energy changes or equilibrium constants, rather than inhibited by the nature of transition state. Reaction entropy changes have the significant influence on reaction kinetics. A proton switch from the ionic center to the periphery between two intermediates, resulting in the evaporation directly of two or three solvent molecules, is proposed for the reactions of dimers and trimers. The reactivity efficiencies for the alkyl blocked dimers such as (CH3CN)2H+,(CH3OCH3)2H+,(CH3COCH3)2H+ and (CH3COOCH3)2H+ are very low, These reactions are not controlled by overall reaction free changes or equilibrium constants.

The chemical states of metal-ceramic interface were studied by XPS accompany the ion etching in situ. The results showed that Cr and Fe were both oxidized at the interfaces, and the degree of the oxidization was Cr>Fe, while Cu was not oxidized. The quantity analysis showed that the thickness of the interfaces had a direct relations with the chemical reaction.

 Carbon nanotubes have been produced by laser ablation of graphite sample immersed in water. The experiment reveals the dependence of nanotube production on the structures of the sample. The more perfect the layer structure of the graphite sample is the easier is the production of the carbon nanotubes. Production of the carbon nanotllbes is also affected by the orientation of the lattice surface of the graphite sample. Glassy carbon cannot produce nanotube at all. Based on careful analysis of the experimental results, mechanism for the production of carbon nanotubes on the carbon/water interface is suggested. Water on the sample quenches the laser-vaporized species on the surface of the sample so as to provide the reactive material for the growth of the nanotubes. The perfect crystal lattice on the graphite sample surface can distribute the vaporized material to be nearly two-dimensional and the environment favorites the production of the carbon nanotubes.

The interacted potential of the hydrogen-nickel surface system was simulated by means of the 5-parameters Morse potential, the adsorption and diffusion of a hydrogen atom on Ni(115) step surface were studied. The LEPS potential energy surfaces for the interaction of H2-Ni(100) and H2-Ni(115) systems were constructed and the chemcial kinetics of the dissociative adsorption of a hydrogen molecule was studied.
The theoretical results show that, in comparison with Ni(100), the active potential barriers on Ni(115) are decreased obviously for the dissociative adsorption of a hydrogen molecule and trapping potential wells are formed for the surface diffusion of the hydrogen atom and molecule at near step because of the effects of the step surface.

The hydrosol of SnO2 nanoparticles are prepared by the method of colloid chemistry. The free piling up process of nanosized SnO2 colloid particles are investigated at the gas-liquid interface by LB and Brewster Angle Microscopy techniques. The result indicates that solid state monolayer and multilayer of SnO2 nanoparticles can be formed at the gas-liquid interface only by aging the sol in air or compressing it without amphiphiles surfactant.

The rehydration of dehydrated products of boehmite with different textural morphology calcined at the temperature below 1000℃ is investigated by XRD and SEM. It is found that every dehydrated alumina is capable of being rehydratied and the rehydration product is boehmite. Rehydrates with different textural morphology have been produced from aluminas with different textural morphology, and the textural morphology of a rehydrate depends both on the starting alumina and on the hydrothermal conditions. The rehydration ability of aluminas is determined by their textural morphology and calcined temperature. Aluminas are directly rehydrated to rehydrate and the rehydration process is not the reverse. Process of the dehydration of the initial boehmite.

Magic number cluster ion Mn5+ and abundant Mn/O cluster ions havc been formed by 532nm laser ablation of MnCO3 solid sample with time-of-flight mass spectroscopy detection. The experimental results show that Mn5+ was formed in the cooler dilute tail region of the plume produced by laser ablation, while Mn/O cluster ions were mainly formed in the hotter dense preceding portion of the plume, they all were produced by postablation cluster growth in the ablation plume. Penta nal with D(5h) symmetry is the possible structure of Mn5+, which is supported by our ab initio calculation.

Layered double hydroxides (LDHs) pillared with heteropolyanions have been measured using XPS、IR、XRD spertra, and the interaction between layers and pillars discussed, The mechanism of pillars has been further discussed by XPS spectra.

A silica-pillared layered ferrititanate was successfully prepared by first preswelling K(0.8)Fe(0.8)Ti(1.2)O4 with n-hexylammonium chloride, and then reacting with NH2CH2CH2CH2Si(OC2H5)3 and finally calcinating the resultant product in air at 500℃ .The obtained silica-pillared layered ferrititanate has a high thermal stability beyond 650℃ and a specific surface area of 98.0m2•g(-1).

It is reported the first time that the CoxNi(1-x)Fe2O4(0≤x≤1) catalyst prepared under microwave radiation is more active for H2O2 decomposition than that prepared by conventional heating, and this tendency becomes more manifested, as x increases in CoxNi(1-x)Fe2Oe.

 Modification of KL zeolite by chemical vapour deposition (CVD) of Si(OEt)4 and (CH3)3SiOSi(CH3)3 was used to study the influence of zeoltie support on the aromatization of n-hexane over Pt/KL catalyst. The pore size and pore volume of zeolite were decreased by CVD. The acidic hydroxyl groups remaining on the surface of KL zeolite were removed and thus the selectivity of non-acidic catalyzed aromatization reaction was improved. Whereas the activity of aromatiztion reaction was decreased due to the destruction of some of active sites in KL zeolite for 1,6-cyclization. Becuase of the coverage of the framework of zeolite by CVD of SiO2, Pt particles became more electron-excess. Therefore, the silica-coated catalysts were easier to be poisoned by sulphur.

The preparation of monodisperse colloidal microlatex particles of polystyrene and poly(styrene butene diacid) by the use of microwave radiation and under normal ambient pressure is reported. There is no surfactant in the system. The total synthesis time has been reduced from more then 10h(conventional method) to less than 1 h(microwave mothod). The dynamic experimental results indicate that the reaction proecss is very sharp in comparison with conventional polymerization. No constant rate stage existed.

The basic phospholipase A2 from the venom of Agkistrodon halys pallas possesses the ability to cause hemolysis in contrast to the other two phospholipase A2 from the same venom. A new form of crystals of this enzyme was grown. The crystals belong to space group of P212121 with unit cell parameters of a=9.175nm, b=10.080nm , c=2.287nm.The crystals diffract to high resolution, and are suitable for detailed structural studies. The data were collected up to 0.25nm resolution using synchrotron radiation-imaging plate-Weissenberg camera system. Preliminary analysis reveals the presence of two molecules in the asymmetric uint and the molecule may pack with the smallest dimension approximately parallel to the c axis. The new crystal form is more attractive than the monoclinic one previously reported for crystallographic structure determination as it contains fewer molecules in the asymmetric unit.

The Tyndall effect, electrical conductivity and settleability of C(60) in benzene, toluene and toluene/ethanol were determined. The results show that the dispersed systems are in colloidal state in a range of concentrations and in suspension state at higher concentrations.

The metallic states of ultrafine amorphous alloy particles CoB, CoPB and Co metal were studied by using ICP, XPS and ethylene hydrogenation reaction test. It is shown that Co component on surface of CoB and CoPB amorphous alloy particles is in electron-deficient state, which leads to the increase of irreversible absorption of ethylene, and results in the decrease of the active site number. Hence the catalytic activity of CoB and CoPB catalysts for ethylene hydrogenation is lower than that of metallic Co.

The adsorption structures of 4-cyanophenyl 4-butoxy benzoate(CPBOB) on graphite are studied by Scanning Tunneling Microscope(STM) at room temperature from the mixture of two different liquid crystals. STM images of CPBOB molecules are visualized for the first time with a near-atomic resolution. The adsorption structures are also investigated by molecular dynamical calculation. The STM images of CPBOB are stable in the period of 12 hours. These results indicate that liquid crystals of higher melting point on the surface of graphite can be studied by STM at the room temperature and the CPBOB molecules in a unit are orientated in the way of head to head.