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Ivo L.C. Freriks
Researcher at Royal Dutch Shell
Publications - 5
Citations - 186
Ivo L.C. Freriks is an academic researcher from Royal Dutch Shell. The author has contributed to research in topics: Catalysis & Fourier transform infrared spectroscopy. The author has an hindex of 4, co-authored 5 publications receiving 181 citations.
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Potassium-catalysed gasification of carbon with steam: a temperature-programmed desorption and Fourier Transform infrared study
TL;DR: In this paper, it was shown that potassium carbonate, when well dispersed on a surface of carbon prepared from polyfurfuryl alcohol, decomposes at much lower temperatures than bulk carbon carbonate.
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Low-temperature oxidation of a bituminous coal. Infrared spectroscopic study of samples from a coal pile
Robert Bouwman,Ivo L.C. Freriks +1 more
TL;DR: In this paper, a Fourier transform analysis of coal samples from a test pile of a bituminous coal which was subject to spontaneous heating was performed. But the results showed that macropore oxidation (a diffusion-limited process across the macroscopic interface of the particle) predominates, and that removal of a small proportion of fines with a relatively large surface area would result in a reduction of spontaneous heating.
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A Fourier transform infrared spectroscopic study of the oxidation of propylene over supported silver catalysts
TL;DR: The reaction of 2.6 kPa propylene over preoxidized 20% silver on aerosil silica yielded only carbon dioxide, water, and a carbon-rich deposit, which could be oxidized to carbon dioxide and water.
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The catalytic activity of nickel-substituted mica montmorillonite
TL;DR: In this paper, it was shown that removing metallic nickel from reduced mica montmorillonite (NiSMM) by carbon monoxide destroys the pentane hydroisomerization activity, while leaving the number of acid sites unchanged.
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Fourier transform ir spectroscopic study of the preparation of a carbon-coupled porphyrin catalyst structure
TL;DR: In this paper, it has been demonstrated by means of Fourier Transform infrared spectroscopy, a specific sample preparation technique, and a background correction procedure, that the chemical coupling of tetra (p -carboxyl)porphyrin to an oxidized carbon surface is accomplished via an ethylenediamide bridge.