• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 31
  • 10
  • 2
  • 1
  • Tagged with
  • 45
  • 6
  • 5
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 3
  • 3
  • 3
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The thermal decomposition of di-methyl sulfite

Rhodes, Herbert Dawson, 1912- January 1936 (has links)
No description available.
2

The pyrolysis of dimethyl sulfite

Fitzhugh, Andrew Fyfe, 1912- January 1938 (has links)
No description available.
3

The pyrolysis of dimethyl carbonate

Olson, Dan Allen Herman, 1913- January 1938 (has links)
No description available.
4

The solubility of high molecular weight solid hydrocarbons in supercritical ethane

Moradinia, Iraj 05 1900 (has links)
No description available.
5

The oxidation of ethane ...

Riblett, E. Wendell. Taylor, H. Austin January 1900 (has links)
Thesis (Ph. D.)--New York University, 1931. / Cover title. Reprinted from an article, by H. Austin Taylor and E.W. Riblett, published in the Journal of physical chemistry, v. 35, no. 9, Sept. 1931. eContent provider-neutral record in process. Description based on print version record.
6

The kinetics of ethane in the exhaust of a spark ignition engine

Sorenseon, Spencer. January 1970 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1970. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
7

The oxidation of ethane ...

Riblett, E. Wendell. Taylor, H. Austin January 1900 (has links)
Thesis (Ph. D.)--New York University, 1931. / Cover title. Reprinted from an article, by H. Austin Taylor and E.W. Riblett, published in the Journal of physical chemistry, v. 35, no. 9, Sept. 1931.
8

The rate of dissociation of pentaarylethanes ...

Osborn, Gerald, Bachmann, Werner Emannuel, January 1900 (has links)
Thesis (Ph. D.)--University of Michigan, 1939. / Cover title. "From the Ph. D. dissertation of Gerald Osborn." By W.E. Bachmann and Gerald Osborn. "Reprinted from the Journal of organic chemistry, vol. 5, no. 1, January, 1940."
9

Protochemical and crystallographic studies on Dimethyl 9,10-Dihydro-9-Methyl-9,10-Ethenoanthracene-11,12-Dicarbosylate

Pokkuluri, Phani Raj January 1987 (has links)
The photochemistry of dimethyl 9,10-dihydro-9-methyl-9,10-etheno-anthracene-11,12-dicarboxylate (5) was studied in solution as well as in the solid state. Upon direct irradiation in solution, three products were obtained, two of which were identified as regioisomeric products of the di-π-methane rearrangement (derivatives of semibull-valene) and the other a derivative of dibenzocyclooctatetraene. When sensitized (by acetone, xanthone or benzophenone) in solution, only the di-π-methane rearrangement products were obtained, suggesting that the other photoproduct obtained in direct irradiation might be a singlet-derived product. In acetonitrile approximately 65% of the photochemical reaction observed was di-π-methane rearrangement. Solid state irradiations mainly resulted in di-π-methane rearrangement but with a reversal of product selectivity from that observed in solution. The X-ray crystal structure of the starting material indicates that one of the ester groups is conjugated to the central double bond while the other is non-conjugated. Radical stabilization through conjugation with the ester carbonyl group is consistent with the major product formed in the solid state. A regular decrease in the photoproduct selectivity was observed with the extent of grinding of the crystals, and this may be attributed to a lower regioselectivity at the surface than that within the bulk of the crystal. Irradiation in a KBr matrix resulted not only in producing more presumed singlet product, but also in the enhancement of the rate of the reaction. Also the singlet photoproduct was found to be produced more when pressure was applied in the solid state. Thus, the photochemical reaction of 5 was found to be sensitive to the environment in which the reaction is taking place. Irradiation of a solid solution of 1% xanthone and the starting material demonstrated the possibility of solid-state sensitization. The sensitized irradiations in the solid state were found to produce more of the presumed singlet product, and triplet-triplet annihilation was suggested as one of the possible explanations. / Science, Faculty of / Chemistry, Department of / Graduate
10

Preparation and characterization of halide-doped perovskite-type catalysts for oxidative dehydrogenation of ethane.

January 2001 (has links)
by Chan Ying. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references. / Abstracts in English and Chinese. / Abstract --- p.i / 摘要 --- p.iii / Acknowledgements --- p.iv / Table of contents --- p.v / List of Tables --- p.ix / List of Figures --- p.xii / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- Introduction --- p.1 / Chapter 1.2 --- Literature review of the ODE reaction over different catalysts --- p.4 / Chapter 1.2.1 --- The alkali metal and the alkaline earth metal oxide catalysts --- p.4 / Chapter 1.2.2 --- Rare earth oxide catalysts --- p.5 / Chapter 1.2.3 --- Transition metal oxide catalysts --- p.6 / Chapter 1.3 --- Perovskite-type oxide catalysts --- p.7 / Chapter 1.3.1 --- The structure of perovskites oxide --- p.7 / Chapter 1.3.2 --- Preparation method of perovskites oxide --- p.8 / Chapter 1.3.3 --- Literature review of perovskites oxide catalysts --- p.9 / Chapter 1.4 --- ODE mechanism --- p.11 / Chapter 1.5 --- Factors affecting the catalytic performance of catalysts --- p.12 / Chapter 1.6 --- surface and bulk characterization of perovskites-type oxide catalysts --- p.13 / Chapter 1.7 --- Objective of this research project --- p.15 / Reference --- p.15 / Chapter Chapter 2 --- Instrumentation / Chapter 2.1 --- Introduction --- p.20 / Chapter 2.2 --- Assessment catalytic performance --- p.20 / Chapter 2.3 --- "Brunauer, Emmett and Teller (BET)" --- p.23 / Chapter 2.3.1 --- Theory --- p.23 / Chapter 2.3.2 --- Experimental --- p.25 / Chapter 2.4 --- X-ray Diffraction (XRD) --- p.25 / Chapter 2.4.1 --- Theory --- p.25 / Chapter 2.4.2 --- Instrumentation --- p.26 / Chapter 2.5 --- X-ray Photoelectron Spectroscopy (XPS) --- p.28 / Chapter 2.5.1 --- Basic principles --- p.28 / Chapter 2.5.2 --- Qualitative analysis --- p.29 / Chapter 2.5.2.1. --- Chemical shift peaks --- p.29 / Chapter 2.5.2.2. --- Auger peaks --- p.30 / Chapter 2.5.2.3. --- Shake-up satellites --- p.30 / Chapter 2.5.3 --- Quantitative analysis --- p.31 / Chapter 2.5.3.1 --- Surface sensitivity and sampling depth --- p.31 / Chapter 2.5.3.2 --- Atomic concentration determination --- p.31 / Chapter 2.5.4. --- Instrumentation --- p.32 / Chapter 2.5.4.1 --- Ultra-high Vacuum --- p.32 / Chapter 2.5.4.2 --- Sample Introduction System --- p.33 / Chapter 2.5.4.3 --- X-ray Source --- p.33 / Chapter 2.5.4.4 --- Data processing --- p.34 / Chapter 2.6 --- O2-Temperature Programmed Desorption (02-TPD) --- p.37 / Chapter 2.7. --- Halogen Analysis --- p.37 / Chapter 2.7.1 --- The Determination of Chloride by Fajans Method --- p.37 / Chapter 2.7.2. --- The Determination of Fluoride Content by ISE Fluoride Electrode --- p.38 / Chapter 2.8. --- The Determination of Mn Concentration --- p.38 / Reference --- p.39

Page generated in 0.0439 seconds