The hydrothermal synthesis of zeolites-Precursors, intermediates and reation mechanism

... recently introduced for the preparation of C-6 aldehyde derivatives of Glc [15] The key step is the use of Collins reagent for the selective oxidation of the primary trimethylsilyl ether of the ... RESULTS Synthesis of inhibitors The synthesis and characterization of compounds 1b, 1d, 1f, 1g and 3b (Scheme 1) is reported for the first time, and the...

Ngày tải lên: 21/02/2014, 01:21

... occurred immediately Then the mixture solution was transferred into a commercial stainless steel Tef- lon-lined autoclave of 50 mL capacity The autoclave was maintained at a temperature of 18 0°C ... water and absolute ethanol respectively, and finally dried in air at 60°C The XRD pattern of prepared powder sample was collected using a Rigaku D/ Max-2200PC X-ray diffractom...

Ngày tải lên: 19/03/2014, 16:48

... PRESS D.-S Seo et al / Journal of Crystal Growth 275 (2005) e2371–e2376 e2375 Fig EDS patterns of (a) Na2Ti6O13 whiskers, (b) TiO2 whiskers and (c) XRD pattern of TiO2 whiskers different crystalline ... microstructure of the acidtreated TiO2 powder TiO2 whiskers, 100–200 nm in diameter and 5–10 mm in length, could be obtained from the Na2Ti6O13 whiskers TiO2...

Ngày tải lên: 20/03/2014, 13:04

... growth of the WO3 nanowires With the addition of different inorganic salts, the compositions and the corresponding properties of the solution are different in the hydrothermal conditions The changes ... assisted K2SO4 plays an important role in the specific morphologies of WO3 No nanowires of WO3 could be obtained without K2SO4, and the purity o...

Ngày tải lên: 20/03/2014, 13:04

... nucleation sites for the growth of carbon nanotubes There could be a further reduction in the catalyst particle size during the hydrogen treatment before the carbon deposition Further, the nickel or ... Dependence of carbon yield on the reaction temperature be through the precipitation of carbon in the form of MWNTs from the molten catalytic particles Th...

Ngày tải lên: 22/06/2014, 22:20

... analysis and interpretation of data, manuscript preparation, and statistical analysis SKT participated in acquisition of data, analysis and interpretation of data, and manuscript preparation SC participated ... data, manuscript preparation, and statistical analysis J-PP participated in study design, analysis and interpretation of data, and manuscript preparation JM-P...

Ngày tải lên: 09/08/2014, 10:23

... product of a of C-a protein co-migrating with the sl B-a protein For the B protein, the contribution of the a is evident in -casein so the electrophoregram and has been considered in estimating the ... between the proteins produced by the alleles of the respective a,,-Cn and heterozygotes and the -Lg expression of the alleles in homozy...

Ngày tải lên: 14/08/2014, 20:20

Ngày tải lên: 14/11/2014, 12:32

... INVESTIGATIONS INTO THE CHEMOPREVENTIVE POTENTIAL OF STILBENES, INDOLINONES AND ISOINDIGOS: SYNTHESIS AND MODE OF ACTION STUDIES ZHANG WEI (B.Sc., SOOCHOW UNIVERSITY) A THESIS SUBMITTED FOR THE ... of the chemical shifts of the aromatic protons of ring B (in particular H-2' and H-6') provided a useful means of assigning the Z/E configuration o...

Ngày tải lên: 11/09/2015, 09:06

... PART I TOTAL SYNTHESIS AND BIOLOGICAL EVALUATION OF ANTILLATOXIN AND FRAGMENTS PART II SYNTHETIC STUDIES TOWARDS THE TOTAL SYNTHESIS OF CYTOCHALASANS AND TUBEROSTEMONINE APPENDIX ... Biological Evaluation of Antillatoxin and Fragments 1. 1 Historical Background 1. 2 Previous Synthetic Studies 1. 3 Our Retrosynthetic Analysis of...

Ngày tải lên: 16/09/2015, 08:31

... form reflect the rule -of- law value of the accessibility of law The norms that handle cases of failed law reflect both the rule -of- law value of accessibility and the more substantive value of consistent ... statute’s intended meaning is what its intended meaning would be were the legislators to intend the first meaning given in a standard English dictiona...

Ngày tải lên: 01/11/2013, 08:20

... risk and that women, therefore, are the primary source of fetal harm Men are left entirely out of the frame as social attention focuses exclusively on the maternal fetal nexus Between fathers and ... explore the range of complex questions about biological gender diVerence generated by the politics of fetal risks, and the problematic nature of the i...

Ngày tải lên: 01/11/2013, 08:20

... Professor from Sydney, Australia, finds the keys to the stunning success of the world's greatest investor T HE R ESULT I S … The Buffett Report The Investing Secrets of Warren Buffett —and how ... about the activities of the company They want to study the “pure” movement of the stock price with the belief that they can use this information to make f...

Ngày tải lên: 09/12/2013, 20:15