synthesis of oxide and zeolite supported catalysts from organometallic precursors

... convenient The aims of this study include: (1) Synthesis of hydrous zirconia supported niobium oxide catalysts and boriazirconia catalysts The factors of niobium oxide/ boria loadings and the calcination ... support, and surface groups such as hydroxyls on the suface of oxides Bands arising from the bulk structure of catalysts or supports can readily be observed From the infrared spectra of supported ... lifetime of the catalyst In addition, the 11 structural features and chemical compositions of supported oxides are usually different from the bulk oxide The active oxide interacts with the surface of...

Ngày tải lên: 06/10/2015, 21:06

... development of asymmetric synthesis of furan and oxindole derivatives with tertiary amine thiourea organocatalysts, including enantioselective synthesis of 3(2H)-furanones and 2,3-dihydrofurans with ... in almost all types of reactions, and good selectivities can often be achieved by combining chiral ligands and suitable metals However, high cost and toxicity of the metals, and stringent reaction ... ASYMMETRIC SYNTHESIS OF FURAN AND OXINDOLE DERIVATIVES WITH BIFUNCTIONAL AND MULTIFUNCTIONAL ORGANIC CATALYSTS DOU XIAOWEI (B.Sc., Nanjing Univ.) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY...

Ngày tải lên: 10/09/2015, 09:06

... Preparation of zeolite beta seeds 36 2.1.2 Synthesis of Al-free Zr-beta zeolite 36 2.1.3 Synthesis of Al-containing Zr-beta zeolite 37 2.1.4 Synthesis of Ti-beta zeolite 37 2.1.5 Synthesis of Al- and ... 1.2.4 Synthesis mechanism of zeolite beta 1.2.5 Structure of zeolite beta 1.3 Modification of zeolite 1.3.1 Tuning hydrophilic/hydrophobic property of zeolite 9 1.3.2 Introduction of Brønsted and ... introduction 1.2 Synthesis of zeolite beta 1.2.1 Synthesis of zeolite beta in basic medium 1.2.2 Synthesis of zeolite beta in fluoride medium 1.2.3 Incorporation of other metal elements into zeolite beta...

Ngày tải lên: 16/09/2015, 17:12

... southernmost Chile to the Inuit of northernmost Alaska, and from the Maori of the remote Cook Islands to Siberian Yakut Some of them describe, of course, strictly local concepts and sensations, such as ... wackiness of Japanese, and realized that sometimes a dictionary can tell you more about a culture than a guidebook I looked at languages from all corners of the world, from the Fuegian of southernmost ... M4P 2Y3 (a division of Pearson Penguin Canada Inc.) Penguin Books Ltd, 80 Strand, London WC2R 0RL, England Penguin Ireland, 25 St Stephen’s Green, Dublin 2, Ireland (a division of Penguin Books...

Ngày tải lên: 15/01/2014, 10:51

... Comparison of E coli mononuclear superoxide dismutase molecular features (Top) Stereo view of the superposition of the backbone peptide chain of one subunit of FeSOD (black) and MnSOD (grey) of E coli ... University School of Medicine, Japan) and Professor T Matsumoto (Showa Woman’s University) RESULTS Mutation of FeSOD and MnSOD The sodB and sodA genes of E coli were amplified by PCR from either the ... conclusive result Effect of hydrogen peroxide on enzyme activity Hydrogen peroxide, the product of the SOD reaction, is an inhibitor of SODs and an inactivator of FeSOD It is often used to distinguish...

Ngày tải lên: 21/02/2014, 01:21

Ngày tải lên: 16/03/2014, 03:20

... titanate as an ion exchanger can be used for the removal of transition metals and anions from drinking water [17] and purification of heavy metals from industrial waste water [18] There are several ... decomposition of NOx and improvement of living conditions by removal of various pollutants, etc [19–21] In this paper, we also demonstrated the preparation of TiO2 whisker by extracting Na species from ... distributed and had a size of less than 100 nm in diameter and a length exceeding 100 mm From the X-ray diffraction analysis, we found that the whiskers were of Na2Ti6O13 structure and grew into...

Ngày tải lên: 20/03/2014, 13:04

... therefore prepared from proteins blotted from SDS gels to Ó FEBS 2004 Native and recombinant chlorite dismutase (Eur J Biochem 271) 3541 Fig Separation of tryptic peptides of native (A) and recombinant ... of tryptic digests from the native and recombinant enzymes Migration times in this type of analysis are prone to variability [29], but most of the peptide peaks seen in the electropherogram of ... the spectrum of the recombinant enzyme (trace B) is a mixture of contributions from high- and low-spin species The high-spin heme component in the spectrum consists of both a rhombic and an axial...

Ngày tải lên: 23/03/2014, 12:20

... the fluxes of the dissociation and binding of Ca2+ to and from binding sites Ca2+-binding proteins (as well as Ca2+-binding phospholipids) show a wide range of values of the binding and dissociation ... in the absence of an exchange across the plasma membrane and of an intrinsic dynamics of the IP3R [113] In Cacyt/protein models, the role of alternating supply and withdrawal of Ca2+ is played ... one hand, and the gap-junctional diffusion of Ca2+ and IP3 on the other, on the intercellular coordination of Ca2+ oscillations In biochemistry, the theoretical analyses of stationary states and...

Ngày tải lên: 24/03/2014, 00:21

... g-Al2O3 -supported catalysts, contributed to the understanding of the hydroprocessing catalysis These authors prepared a series of Mo, NiMo and CoMo catalysts supported on AC and their counterparts supported ... 101 103 Kinetics and Mechanism of Hydroprocessing Reactions over Carbon and Carbon -Supported Catalysts 7.1 7.2 Chapter Preparation of Carbon -Supported Catalysts 6.1.1 Pretreatment of Carbon Supports ... higher hydrodesulfurization and hydrodeoxygenation activities of carbon supported catalysts than that of the g-Al2O3 supported catalysts Also, the deactivation of the former catalysts by coke deposition...

Ngày tải lên: 01/04/2014, 10:26

... formation, concentrations of precursors, ratios of anionic to cationic species and solvent, quantum dot of the desired size, shape and composition have been produced Some of the common synthesis processes ... band edge and near band edge (exciton) emission The recombination of an excited electron in the conduction band with a hole in the valence band is called band edge emission An electron and hole ... ABSTRACT SYNTHESIS OF CDTE AND PBS SEMICONDUCTOR QUANTUM DOTS AND THEIR BIOLOGICAL AND PHOTOCHEMICAL APPLICATIONS Xing Zhang, M.S The University of Texas at Arlington, 2010 Supervising Professor:...

Ngày tải lên: 28/04/2014, 15:48

... gas chemistry at a microwave power of 700 W The total pressure of reactant gas was varied from to 100 Torr (5, 15, 30, 60, 80, and 100 Torr) in the synthesis of diamond films The deposition process ... 289.7 eV and C-C 1s ® Page of s* hybrid bonds between approximately 290 and 302 eV) of 95.65% with a small fraction of the sp2-bonded carbon (C = C 1s ® π* at approximately 285.3 eV) and C-H bonding ... sluggish kinetics and insufficient density of plasma species during the LPLT synthesis A new and effective way to control the crystal size, surface morphology, and growth mechanism of diamond films...

Ngày tải lên: 20/06/2014, 20:20

... gas chemistry at a microwave power of 700 W The total pressure of reactant gas was varied from to 100 Torr (5, 15, 30, 60, 80, and 100 Torr) in the synthesis of diamond films The deposition process ... 289.7 eV and C-C 1s ® Page of s* hybrid bonds between approximately 290 and 302 eV) of 95.65% with a small fraction of the sp2-bonded carbon (C = C 1s ® π* at approximately 285.3 eV) and C-H bonding ... sluggish kinetics and insufficient density of plasma species during the LPLT synthesis A new and effective way to control the crystal size, surface morphology, and growth mechanism of diamond films...

Ngày tải lên: 22/06/2014, 00:20

... Analyses of the VP1 nucleotide sequences on Identification and antigenic site analysis of 2002 FMDV 121 Fig Indirect immunofluorescence assay of cell culture isolate of FMDV BHK-21 and IB-RS-2 ... reintroduction [8] and the development of specific diagnostic tests and protective vaccine In the present study, we have isolated FMDV from clinical samples of the 2002 FMD outbreaks in Korea and then ... FMDV serotype O between May and 23 June 2002 in the Republic of Korea Antigen ELISA and RT-PCR for the detection of viral antigen and LPB-ELISA for the measurement of FMD antibodies were performed...

Ngày tải lên: 07/08/2014, 18:21

... levels and the levels of markers of inflammation (ESR: r = 0.23; CRP: r = 0.21, both P < 0.01) was somewhat stronger compared with the correlation of ACPA levels and the levels of markers of inflammation ... correlation of the changes of levels in time of both antibodies and markers of inflammation – that is, the correlation between (a) the difference between the first and second ACPA/RF levels and (b) ... autoantibody levels and the levels of markers of inflammation was found at a single time point or between changes in ACPA or IgM-RF and markers of inflammation Discussion Characteristics of ACPA and IgM-RF...

Ngày tải lên: 09/08/2014, 14:21

... manual search of key journals and of the G-I-N conference proceedings; personal contact with key authors and experts in CPGs development using the network of G-I-N; and reference lists of included ... important and effective; perceived barriers and facilitators for the development and implementation of effective PPIPs; examples of best (and 'bad') practices Interviews will be recorded and transcribed ... conceptualizing the development and effective implementation of CPGs International consensus on the importance of patient and public involvement in CPGs International experience of patient and public involvement...

Ngày tải lên: 11/08/2014, 05:21

... manual search of key journals and of the G-I-N conference proceedings; personal contact with key authors and experts in CPGs development using the network of G-I-N; and reference lists of included ... important and effective; perceived barriers and facilitators for the development and implementation of effective PPIPs; examples of best (and 'bad') practices Interviews will be recorded and transcribed ... conceptualizing the development and effective implementation of CPGs International consensus on the importance of patient and public involvement in CPGs International experience of patient and public involvement...

Ngày tải lên: 11/08/2014, 16:20

... purposes of this discussion and consistent with the findings of the meta -synthesis, recovery is not simply a process of reducing use of drugs and alcohol or attaining abstinence from drugs and alcohol ... opinions and experiences of others, prompting recognition of a shared process of transformation and exploration of options [74] Acquisition of knowledge and skill to implement plans, planning of a ... understanding of the experiences of participating in integrated treatment programs from women's perspectives, a synthesis of these qualitative data is required Meta-analyses of quantitative data and...

Ngày tải lên: 11/08/2014, 18:20

... with the Bank of France of the : Evolution of Credit and Banks banks of Rouen, Lyons, Havre, Lille, Orleans, Toulouse, and Marseilles, and the decree of May merged the banks of Nantes and Bordeaux ... The changes of government and the two invasions of 1814 and 1815 The payment of indemnities to the allies, and the process of recovery of the country after the defeat and the struggles of the various ... quietly and steadily kept on in spite of the Reign of Terror, the ordeal of the wars, and the dangerous and ruinous flood of assignats Many of these banking houses were very old That of the Mallets,...

Ngày tải lên: 05/11/2014, 08:18

Ngày tải lên: 14/11/2014, 06:36