Abstracts - faqs.org

Abstracts

Zoology and wildlife conservation

Search abstracts:
Abstracts » Zoology and wildlife conservation

Understanding the acid behavior of zeolites from theory and experiment

Article Abstract:

The relationship between acidity and catalytic activity of a zeolyte was studied by using a heterogenous catalytic reaction between a hydrocarbon and an acid zeolyte. Infrared spectroscopy was used in the observations and quantum chemical techniques were utilized to calculate the reaction mechanisms and the relationship in question. A detailed profile of this process was generated by comparing the theoretical results and experimental observations.

Author: Santen, R.A. van, Kramer, G.J., Emeis, C.A., Nowak, A.K.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Sn-zeolite beta as a heterogeneous chemoselective catalyst for Baeyer-Villiger oxidations

Article Abstract:

Incorporating 1.6 weight per cent tin into the framework of zeolite beta allows it to function as a heterogeneous catalyst for the Baeyer-Villiger oxidation of saturated and unsaturated ketones by hydrogen peroxide. It is suggested that the first stage of the reaction involves the activation of the carbonyl-group of the ketone on the Sn atoms of the Sn-zeolite beta.

Author: Corma, Avelino, Nemeth, Laszlo T., Renz, Michael, Valencia, Susana
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


How green was my ester

Article Abstract:

It has been possible to produce a new class of catalysts for the Baeyer-Villiger oxidation of ketones. This involves transforming a ketone into an ester by using hydrogen peroxide as an organic oxidant. The catalysts are insoluble in water and in all organic solvents, with the reaction arising at the interface between the solid catalyst and the liquid solution.

Author: Strukul, Giorgio
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
Ketones

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Subjects list: Research, Catalysts, Zeolites, Oxidation-reduction reaction, Oxidation-reduction reactions
Similar abstracts:
  • Abstracts: Words and rules in the human brain. Talk of genetics and vice versa. Survival of the clearest: There are now fossils to show how language evolved
  • Abstracts: Luttinger-liquid behaviour in carbon nanotubes. Carbon-based electronics. Nanomechanical oscillations in a single-C60 transistor
  • Abstracts: A new perspective on the dynamical link between the stratosphere and troposphere. Removal of chlorofluorocarbons by increased mass exchange between the stratosphere and troposphere in a changing climate
  • Abstracts: Modelling the evolution of human trail systems. Palaeoaltimetry from energy conservation principles. Increased sedimentation rates and grain sizes 2-4 Myr ago due to the influence of climate change on erosion rates
  • Abstracts: The effect of 'Schreckstoff' on the shoaling behaviour of the minnow: a test of Hamilton's selfish herd theory
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.
Some parts © 2025 Advameg, Inc.